The front door protects the property from outside interference. She protects the household from the views of strangers. But it is also necessary to know what is being done near the apartment or house. For this, door eyes are used. According to the norms, 0.5-3 meters of the space around the door should be visible through them. for sale various models with interesting features: for double door(installed in two panels at once), hidden (it is invisible to others), protective (bulletproof). There is optics that performs signaling functions.
The peephole for the door was created by tester Robert Wood. This happened in 1906, but the technology began to be used only after 1960.
A simple system consists of:
- a lens lens that expands the view outside the apartment;
- outer rail securing it;
- side lens retainers;
- corps;
- an inner nut connecting the outer and inner lens to each other;
- eyepiece that is directed inward;
- dampers.
The smaller the thickness of the door, the smaller the body will be, fewer lenses will be installed in it. Models that are sold in stores have from 2 to 15 eyepieces.
Main characteristics
Characteristics include length, angle, material of manufacture, diameter, valve type. The parameters are selected depending on the type of door on which the equipment is mounted. The functions that the device must perform are also taken into account.
Eye length
The length depends on the thickness of the door. According to this characteristic, all models are divided into:
- standard - from 30 to 55 mm;
- long - from 55 to 100 mm;
- extra long - from 100 mm.
For apartment doors, a standard set is enough.
If the doors are additionally upholstered with bulky materials, the length of the peephole up to 55 mm is not enough. Therefore, long or extra-long options are used.
Viewing angle
By default, the viewing angle is 180 degrees. This is possible by shifting the focus of the lens up, but the design features distort the incoming rays. Manufacturers compensate for errors by increasing the viewing angle to 200 degrees to achieve a figure of 180 degrees.
Long and extra long eyes have different optical parameters. Some firms sell equipment in which the optics are equipped with a rear nut. The optical scheme does not change in this case.
Execution material
According to the material of manufacture, models with plastic or glass optics are distinguished. The equipment is divided into the following subspecies:
- two nuts and body - plastic;
- inner nut and body - plastic, other parts - metal;
- two nuts and body - metal.
The more metal is used in production, the higher the cost of the product will be. The eyes of their silumin lithium will cost less, the more expensive ones will be made of black metal.
Glass optics give a good image, not blurry, but they are quite fragile. Plastic is not afraid of shock, but scratches remain. The image is not so clear. In addition, yellowness occurs over time.
Product diameter
The diameter of the door optics is different. In standard variations, it is from 2 to 3 centimeters. Manufacturers produce models whose diameter exceeds 5 centimeters.
Gate valve, analogues
Latches and shutters allow you to discreetly monitor and protect the apartment from light. Correctly installed valve:
- does not have sharp corners;
- closes tightly and does not allow light rays to enter from the entrance;
- when opening and closing, it does not come into contact with the optics and the door.
Analog valve - mirror coating. It makes the image less bright and clear. At the same time, the buyer of the mirror-coated model does not worry that the damper will scratch the fittings.
Types of door eyes
A view that has a simple structure and a 180-degree viewing angle is considered standard. Other models have been developed that work similarly, but at the same time increase the viewing angle and give more protection. Among them:
- or a fish eye, which has two lenses - the space around the door is better visible;
- a bulletproof version made of special durable materials that protects people from intruders;
- secret, which is located in an unexpected place, which is why it is invisible to others;
- double - designed for a double door, allows you to see what is happening behind the outer door;
- periscope - convenient for families with small children or people with handicapped(easy to view from a low distance);
- , which is a miniature copy of the simplest camera video surveillance;
- a model with a motion sensor notifies the owners when there is activity outside the door.
Smart views are able to track what is happening in the entrance and record information on an external drive. They consist of a camera, monitor, power supply. The microscopic camera is placed inside the eye. The equipment is invisible to others.
How to choose?
When choosing a door option, it is important to consider the technical characteristics. Among them, an important parameter is the viewing angle. Standard options give 180 degrees. This does not provide reliable protection. Periscopes, telescopic attachments allow you to increase the viewing angle, make visible the space near the door itself. You should also pay attention to:
- Light sensitivity. These data are written in the parameters. If they are high, then you can see what is happening behind the door with minimal illumination of the entrance.
- Type of shell. Models without a case are easier to install and install, but case ones are more reliable.
- Manufacturing material. last longer hardware. Plastic ones are not reliable, although they are cheaper.
Door optics are selected based on design features and protection requirements. Buy modern version for an ordinary apartment is irrational. A simple one is clearly not suitable if there are a lot of valuable things at home. To prevent strangers from entering your home, it is better to buy high-quality equipment.
Door peephole installation
Installation of standard equipment is fast. You can do it yourself. Electronic video eyes that transmit information to a digital screen are mounted longer, because the master lays the cable from the door to the registrar according to the scheme. The procedure for installing a simple eye is as follows:
- drawing markings on the door in the selected location;
- drilling a hole with a puncher or drill (size depending on the size of the eye);
- installation on the outside;
- twisting the base on the inside.
Installation, assembly of periscopes, double models, a smart door peephole is best entrusted to professionals. They will be able to assemble them securely.
Those who are a little familiar with plumbing can mount on their own, following the instructions. You need a drill or puncher, a ruler for measuring, a level. When working, it is necessary to observe the boundaries so that the peephole does not fluctuate and is in close contact with the upholstery.
Manufacturers
It is impossible to single out any one manufacturer as the best. The buyer's strategy is to study the parameters and characteristics of the product. Then decide how the product fits the requirements. Well-known manufacturing companies:
- German ABUS. The assembled equipment is durable. There are eyes for private apartments and country houses.
- Chinese Armadillo. She provides a line of good products. Eyes meet from various materials, interesting colors, sizes. There are additional features.
- Russian NORA-M, DOORLOCK, Apecs, Torex. Eyes differ in a favorable ratio of quality and cost. In the presence of certificates corresponding to GOST.
In order for the equipment to fully suit the buyer, it is important to consider for what purposes it will be used. It is possible to get by with standard options if the house has a central lock on the entrance. How to choose peephole- the question is relevant if people live in a disadvantaged area. In this case, it is better to focus on modern case models. The right peephole to guard property will help control security in an apartment or house.
Choose a lock for a metal door Currently, locks are produced in almost all countries of the world under the brands of various manufacturers. How to restore a metal door. This procedure involves the return of the original appearance and texture, as the damaged surface of the doors themselves, Yasenevo, Biryulyovo, Tushino, Butovo, Chertanovo, Teply Stan, Tekstilshchiki, Strogino, Sokolniki, Sokol, Medvedkovo, Izmailovo, Sviblovo, Ramenki, Printers, Perovo, Matveevskoye, Otradnoye, Orekhovo-Borisovo, Novogireevo, Nagatino, Saburovo, Mitino, Maryino, Maryina Grove, Lyublino, Lianozovo, Lefortovo, Kolomenskaya, Kuntsevo, Kuzminki, Krylatskoye, Kosino, Konkovo, Kozhukhovo, Ivanovskoye, Zyablikovo, Brateevo, Vykhino, Zhulebino, Golyanovo, Bibirevo , Airport, Begovaya, Tsaritsyno, Avtozavodskaya, Cheryomushki, Warsaw, Kashirskaya, Domodedovskaya.
Why call the master, if you can embed the peephole yourself.
This is the opinion of the majority of those who have ever held a metalwork or carpentry tool in their hands, but not as a specialist, but as an amateur.
If someone has ever had to deal with this issue, he will definitely say that let everyone mind their own business.
How easy or difficult it is to embed a peephole in the door if there is no experience.
To begin with, let's figure it out and clarify which door and what material it is made of.
If the door is wooden, then this is one thing, and if it is metal, then this is completely different.
At first glance, it may seem that it is more difficult to embed a peephole into a metal door. But here it could just be the other way around.
Difficulty peephole peephole in a metal door may lie only in the strength of the metal, and everything else, most likely, will go like clockwork.
Yes, drilling a hole in thick iron is not easy, but who said that the door is made of thick steel.
As a rule, ordinary entrance doors are made of metal with a thickness of no more than 2 mm.
Making a hole under the eye in such a thickness is not a serious obstacle for a person armed with a modern tool. 
There is one small but very important nuance.
Drilling a hole in metal without experience is extremely dangerous for both the door itself and the master.
At the exit, the drill may jam and break, resulting in serious injury or injury.
Metal rupture can also occur and instead of a neat hole
the hole will be like a daisy.
It would not be superfluous to add and warn if the door has decorative trim.
If all the necessary peepholes are not observed when inserting finishing material may suffer, and then the cost of facing will be added.
In a word, for such an insignificant procedure as a sidebar, it is worth preparing thoroughly, and if there is the slightest doubt about the positive completion of this issue, it is better not to take up the job.
Mytishchi, Dzerzhinsky, Belaya dacha, Mosrentgen, Lyubertsy, Kotelniki, Reutov, Khimki, Dolgoprudny, Butovo, Railway, Odintsovo, Kurkino, Domodedovo, Barvikha, Korolev, Peredelkino, Jubilee, Balashikha, Shchitnikovo, Zelenograd, Kosino, Nemchinovka, Gas pipeline, Vidnoe , Krasnogorsk The company performs the following services:
installation of locks, insertion, replacement of larvae, repair of doors, opening.
Of course, most punch locks are always cheaper, but in the posmotret.neobhodimy list, you will need to insert the Balashikha lock, Belaya Dacha ruins
One of the cheapest, but quite reliable ways to protect against intruders is a door to door.
The built-in eyepiece allows you to see what happens when boarding, to "identify" your visitors and, if necessary, to view documents that are presented without opening the door.
These products are very wide in the market. There are very cheap and very expensive models. Let's try to figure out what makes them different and whether it makes sense to pay more.
The first products of this kind that appeared in our country could not provide complete security.
The attackers have learned to simply "deceive" them. To avoid looking, it was enough to press against the wall by the door or sit on the threshold. This feature is a result of the low viewing angle of cheap products.
Experts recommend mounting eyes, which looks like 180-220 degrees. It's better, it's better. You also need to consider the fact that the edges of an image are almost always blurry.
How to install pefoles in metal doors
It looks like some areas come into view, but what happens there is next to impossible.
Maximum visible angle without blur panoramic eyes. This is because the lens of the product consists of two lenses - left and right. Plus, you don't have to get to the door and click on your eyes to get a shot.
The distance at which interrogation is possible depends on the model and can vary from one step to one and a half steps.
Before buying and trimming the case through the door, you need to understand what features to consider when choosing.
From the point of view that he has already defined, we are now talking about materials.
The body of the product can be made of plastic or metal. The first is cheaper, but not very strong.
Metal models are much more reliable.
Lenses are the main part of the product. Their quality and quantity depend on the clarity of the image. They can be made from plastic, regular spectacles or spectacles.
The first is the cheapest, the last is the most expensive. Plastic lenses initially provide light output.
In addition, they are able to accumulate static electricity, which attracts dust particles. And the material itself eventually becomes destructive and loses its transparency. In a word, after a few years, the images transmitted by such lenses become blurry and unclear.
More Recommended bind with ordinary glass lenses.
AND the best way are products from special glasses for eyeglasses. Fully transmits the luminous flux and is characterized by increased power.
Of course, these models are the most expensive.
But they will serve regularly for many years.
Shielded eyes may be used for objects requiring serious precautions. Inside such products is a layer of transparent glass-tight glass. This does not affect the image quality in any way and can be kept in focus with a short firearm (pistol).
And the last factor that can affect the choice is the length of the eyelids.
Standard models are designed for doors with a thickness of 35-50 mm, but products are also available in lengths up to 100 mm.
Eyes for thicker doors in a retail store are rarely accepted. Most of the time they need to be ordered. 
Summing up, we can say that The best way ensure our own security create panoramic eye.
Higher comfort and viewing angle allow you to get only electronic models with a video camera and liquid crystal display, but their price is much higher.
Related topics:
looking at the wooden door
Around the door
Even cheaper to replace the boss in the door
Setting the eye in metal door
In our country, this mentality: people first do, and then read the instructions.
How to fix door lock on a metal door
Order a selection of spare parts for professionals
Entrance doors are the boundary between personal space in the house and the outside world, and the stronger they are, the stronger the feeling of comfort and security, but sometimes there is a situation when the owner needs to see and hear what is happening outside his apartment. The optimal solution to this problem is the installation of a peephole, the history of which goes back to the distant 1906.
It was then that Robert Wood invented a wide-angle lens, called the "fisheye". Gradually, the opening was improved until a modern version of the peephole was obtained. Today, a peephole can be purchased by choosing from the entire range strictly according to individual preferences of shape, size and functionality.
How is the door peephole
Design modern model door peephole consists of the following parts: two lenses fixed on the sides for comfort.
One of which is directed to an external object, and the second is inward and is an eyepiece. For fastening, an external rail and an internal nut are used. The lenses are hidden in the case, while the number of lenses that can be installed there depends on its length, usually this number varies from 2 to 15 pieces, on which inside there is a shutter covering the eyepiece.
Types and criteria for door eyes
When buying a particular eye model, it is worth considering several basic criteria so that any situation cannot be taken by surprise. As a guide through the door, viewing angles play an important role, and the higher they are, the lower the level of risk.
Thanks to the increased field of view, you can observe the maximum space in all directions and everything that happens on it. Optimal Angle for review, it is 180 °, but quite often manufacturers expand it to 200 to optimize image quality and eliminate distortion in the field of view.
The trick that most manufacturers use is to push the focal point so that more space is covered. The next factor is the width. door leaf, on which the peephole model depends: standard (for a door with a thickness of 30-55mm); elongated (for a door with a thickness of 55-100mm); long (within 100mm).
The most common model are standard eyes, which are installed in contemporary designs metal and wooden door panels.
To adjust to the individual width of the door, a thread is used, with which you can fix the desired position. It is worth paying attention to the insulation, unless, of course, it will be used in the near future, because it will add "width", and the calculated length of the standard eye may not be sufficient.
Secret good shopping door peephole of an elongated or extra-long model lies in its optical characteristics, which differ from standard options. But most manufacturers, in order to save materials, prefer a complete set of conventional, elongated nut, while not taking into account the reduction in image quality.
Not small role the diameter of the eye also plays, while the utility factor is higher, the larger it is. Thanks to the aperture ratio of the lenses, the clarity of the image increases, and from a distance of up to 7 cm from the eyes it will retain its properties of a wide viewing angle. The only nuance-minus for eyes with a wide diameter cannot be completely replaced by models with a smaller diameter.
Eyelet materials
The most popular material for making door peepholes plastic and metal still remain, which ultimately affects the cost of a particular model.
Here you can do without unnecessary comments, because many will agree that metal products are durable and stable, which cannot be said about plastic, which is prone to deformation and cracks.
Door peephole installation
The same goes for the lenses themselves. It is more rational to purchase a peephole with lenses made of ordinary glass or spectacle optics, which, unlike plastic counterparts, do not become cloudy or deformed and, if handled carefully, will last for quite a long time, recouping its cost.
door eyes
1. Task
The door is intended for visual observation of a limited space and is usually installed on the front doors of private and public premises.
The eye of the neck should give a clear picture of objects at a distance of 0.5 to 5.0 m in light and illumination conditions.
Special door eyes can also observe the room through double doors (eye for double doors), security control protection (secret eye) of the observer (bullet-proof eyes and periscope eyes), etc. The doors are often duplicated by the television monitoring system, whose operation is less reliable.
second Neck device
Okance's design may be very different, but in everything that is the small eye of the eye (the lens is rotated around the observer) and the lens (the lens facing the object being observed). There may be other lenses between the eyepiece and the objective. In addition, the optical part of the most attractive structure includes: a housing having an outer and an inner nut. (Fig. 1).
The total number of lenses in the doors ranges from 2 to 15.
Sometimes mirrors (eye-periscopes) are used in the doors.
The most common is the design of the optical system, consisting of four lenses, which provides an angle of 180-200 degrees. without significant image distortion (Fig. 2). 
3. Consumer properties of the eye neck
neck thickness is one of the main parameters of the eyes of the cervix. According to this parameter, the eyes are divided into three groups:
- standard eyes (neck thickness 30 - 55 mm);
- oblong eyes (neck thickness 55-100 mm);
– Extremely long eyebrows (door thickness over 100 mm).
Most of the manufactured doors are "standard". These eyes can be placed on modern standard wood doors and on most metal doors.
If the door is finished with various hard and soft materials, the length of the "standard" eyes may not be sufficient.
In this case, it is necessary to install "long" or "very long" cervical eyes.
Eye cutting into metal doors or problems of people with little magnification
Tilt angle the eye of the neck is shown in Fig.
The ideal viewing angle for the neck is 180 degrees. Large when viewed is achieved by "moving forward" in the center of the lens. This provides a complete view of the door zone.
However, it should be borne in mind that in the representation of doors, image distortion often occurs at the edges of the field of view. Therefore, most wide-angle eyes are made with an overestimated viewing angle of -200 degrees, which reduces distortion in the “working” sector by 180 degrees.
When choosing a "long" or "very long" neck, we must not forget that these eyes must have different optical properties than the "standard" eyes.
It's not always noticeable. Some manufacturers produce "oblong" eyes, filling the "standard" eye with an extended rear nut without changing the optical design. Installing an eyelet with such a bunch on a wide door leads to a sharp decrease in the viewing angle.
When choosing a drawer, you should check it at a visible angle as much as possible by unscrewing inner eye, T.
maximizing the "door thickness" parameter.
3.3. Construction of crushers.
Nowadays, almost all of your eyes are equipped with blinds. Without a choke, only cheap eyes are produced.
The damper does not emit light from the apartment and allows the observer to vaguely approach the eye and observe covertly.
Basic requirements for flap design. Loputa Mora:
- close the eye hole;
- Lightweight and silent opening and closing;
- they do not have sharp corners;
— Do not touch the door or door leaf while driving.
The latter requirement is often not provided for in the design of modern and holes, leading to difficulty in turning the valve, damage to the surface of the door, soft cut door trim and eventually damage to the flap.
materials, which are used in the manufacture of cervical eyes, largely determine the selling price of the eye.
Below is a list of materials used to shape the eyes of your neck.
The list is made after the eye price increase:
Glasses with plastic optics:
1. The body and two nuts (external and internal) are plastic;
2. The body and the inner nut are plastic, the outer nut is metal;
the third
The body and two nuts are metal.
Glasses with glass option:
4. housing and two nuts (external and internal) - plastic;
fifth
Housing and inner nut are plastic, outer nut is metal;
6. The body and two nuts are metal.
On the other hand, metal eyes are different, one is in the form of metal,
processing method and type of coating.
The cheapest one is the silumin molding neck, which is usually just a paint-covered mat.
Treated eyes have the best appearance and higher costs.
With the same types of outer coverings, non-ferrous metal eyes are more expensive than ferrous metal eyes.
The appearance of the eye largely depends on the type and quality of the coating. And very often around lined black metal it looks better than eye color in bare metal. Thus, the eyes of the Brass door eye "gold" darken over time, and the door made of steel, chrome plated and then titanium nitride ("gold") does not darken and in fact create scratches are not affected.
Eye optics are divided into glass and plastic.
Optical glass, on the other hand, is made from optical, "spectacular" and ordinary glass.
If the properties of optical and glass bottles do not differ much, ordinary glass lenses are more fragile.
Plastic lenses are not afraid of impacts, but they have many important drawbacks: they are prone to scratches; due to electrolysis and the formation of static electricity, they attract dust to themselves, and, finally, most plastic materials eventually turn yellow and lose transparency.
Almost the second - the third year of work with plastic optics, visibility in these eyes is deteriorating.
3.5. Mirror deletion The objective lens lens acts as a pin, and the door valve cannot be installed in the presence of a tick.
If, however, there is a light source behind the neck of the neck, it will be visible from the outside in the form of luminous dots. This means that in this case the mirror lining does not fully realize the function of the flap.
Another defect in spray atomization is the smaller aperture, the "mirror" of the eye, because
part of the light flux is reflected by spraying.
However, the door is a "mirror" in a simple requirement due to ease of use (no need to open and close the flap) and look better.
3.6. I recieved it increase opening on the neck it is allowed not to see it only in poor lighting, but allows the viewer to look into the eyes of a door that is remote from it (up to 5-7 cm).
Sv You do not need to move your eyes closer to the eyepiece eyepiece. At the same time, it retains excellent viewing power.
In enlarged lens eyes, the larger diameter lenses are structured like a normal eye and therefore have a slightly larger diameter of the eye body.
Blowout protection The eyelets on the outside are equipped with most of the meshes produced. Only a few cheap eyes are missing.
The constructive solution for such protection can be very diverse, but the most effective way is to install different holders on the outer eye.
Doors for special purposes.
sustainable doors The eyes provide protection for the observer with short tube weapons. These eyes have been tested against the following weapons: Nagant TT Makarov. The observer also represents eye periscopes, which are made on the principle of a periscope and submarines, whose eyepieces and lenses are not coaxial. Because the shot outside the scope of the lens passes by the head of the observer.
Window doors can be fitted with bulletproof eyes and periscopes.
Currently, secret eyes are being created, the design of which was developed in the middle of the last century by special services. different countries for covert surveillance.
The design of these eyes is very different, but common feature- wide view and very small diameter (from 0.5 to 0.8 mm) of the outer lens. The body of the eye is usually pencil-shaped and is located in a wall (or door). At the tip of the "pencil" is a lens that looks and at the level of the outer surface is hidden in the background image.
On the surface of a wooden door, the lens is masked under the head of a nail with a diameter of about 1 mm. In this case, as a rule, a number of real nails with similar heads are stuffed.
eyes for double doors They are designed to be observed through two doors at once (inside and outside) with a regular eye on the outer doors and on the inner doors, which are opposite, attached to the optical device by eyepieces.
The system "optical unit + peholo" allows you to view the room for outside doors without opening the doors.
There is also a demand for doors large diameter up to 50 mm ( "Door-panoramic device"), which uses oiled glass instead of an eyepiece.
On this glass, as on the screen, the image is oriented, allowing for remote viewing without having to approach the door.
4. Manufacturers of door eyes
At home and abroad, the main manufacturers of door neck opto-mechanical device and precision mechanics factory.
The production and installation of standard cells is often handled by small businesses purchasing optics from optics.
On the Russian market Widely sold out door sales: Russia, Belarus, China and Spain.
The widest range of neck eyes is produced in Russia (up to 100 objects).
Russian plants produce only standard eyes (Vologda, Novosibirsk, Cheboksary, Krasnogorsk, Azov, Moscow, etc.).
There are about 20 titles in total. These eyes are usually equipped with glass optics, but they do not have a good design and price loss, as in the eyes of Belarus and China.
Belarus has more than narrow choice eye than Russia, but in the production of standard cells it occupies a leading position, produces glasses with a good design-price ratio. Glass production is concentrated in the cities of Minsk, Vileyka, Lida and Gomel.
China produces a very wide range of cervical eyes, but only the cheapest low quality glasses are transported to Russia, usually with plastic optics and no dampers.
In addition, lenses are often incorrectly attached to the body with adhesive. The proportion of marriage between Chinese eyes is significant.
Spain in the Russian market represented doors, especially Amig products that produce standard and oblong eyes with good design and at high prices, but often with plastic optics. The brass eyes of this company do not have a protective coating and eventually darken.
about the materials of the company "World of Castles"
Entrance doors providing the highest level security, heat and noisy insulation, have one drawback: it is impossible to determine who is behind the door without opening. And that's exactly what I want to avoid. You can solve the problem by installing a door strip with a special glass cartridge, or by installing an enclosure.
Select combs
The last solution is much easier to implement.
Neck design
The first prototype device served as an observation slot that crossed the door.
The gap was closed with a latch, and the window pounded several times. Surprisingly, it is difficult to imagine such a design in a modern dwelling or home that an alternative to an overhead observation slot existed until the early 20th century.
The starting point was the creation of a special fisheye lens, developed by the American scientist Robert Wood.
A feature of this is the transmission of an expanded image of an external object to an observer.
Modern design looks like this: the body is plastic or metal, contains at least an eyepiece - observation aids and a target. There are locks on the case, due to which the eye cannot be unscrewed from the outside. Internal organization often equipped with a slider. Instead of the latter, a mirror coating can be used to prevent light from passing through the eyepieces so that the visitor does not know if they are looking or not.
The optimal viewing angle is 180-200 degrees.
In the first case, you get an image with slightly blurred edges. More than a watch, without this drawback. But the diameter of the device simultaneously increases. In the photo, the door is equipped with a small eye.
materials
The body of the device is made of plastic or metal.
Another option is more suitable for steel structures or solid wood.
Lenses for the device are made of plastic or glass.
In the case of highly reliable entrance structures, it is recommended to use an eye with an additional armored glass cartridge.
The material is able to transfer a direct hit of the ball from a cannon (short trunk).
Special types of neck eyes
The video shows different types tools: panoramic, periscope, hidden, as well as video cameras.
door with video camera
Modern and expensive type of device.
The body diameter is standard, so it can be replaced instead of a conventional device.
Door in the front door
At the same time, the new device is equipped with a wide-angle camera - color or black and white, which transmits the full picture to the monitor or TV. An eye with a video camera is usually also equipped with its own monitor for monitoring.
The camera transmits a live image of the visitor, and if the owner of the apartment is absent, record the date and time of the visit, which allows you to accurately determine who visited the house and when. Since the device with a video camera reacts to traffic, it is registered not only by the guests themselves, but also by all visitors who have crossed the landing.
The eye of the camera can be successfully used to organize your own security system. The photo shows an example of a device with a video camera.
Overview How to choose pefoles cameras.
How to install a door peephole with your own hands - an overview of the peepholes and video advice
Today it is very dangerous to open the door without seeing the person on the other side. Of course, it's good to hear a familiar voice, but as they say, it's better to see once than hear ten times.
Based on this, we can say that the door peephole is simply a necessity. The cost of such a device may be different, but affordable for everyone.
Preparing the door for peephole installation
Each owner of his house will be able to install the door peephole with his own hands.
Thread: How to install a peephole?
Door eyes may differ in size, design, price. You can give preference to any eye, the main thing is that the installation dimensions fit the thickness of the web front door. Although, most often, door optical devices can vary widely.
Announcement: How to install door frames
By the way, it is best to give preference to a peephole with a field of view of 170 ° or more, devices of this kind are called wide-angle.
In this case, the "guest" will not be able to cling to the wall and hide from you. In addition, it is better if the outer lens of the eye is made of glass, since plastic is scratched and less durable.
Door peephole installation
In order not to spoil the lining of the door leaf when marking it stands on the outside, glue a paper strip at the required height, you can use masking tape.
On the strip, in any way convenient for you, it is necessary to mark the location of the center of the eye hole. Measure the fitting diameter of the optical device, for a part with internal thread. Next, select a drill of the required diameter, it should be 0.3 mm larger, ideally use a corkscrew or screw. You can use a small mirror, you need to attach it to the door leaf, with the slightest deviation of the drill, you will immediately see it.
Announcement: How to align the door threshold with your own hands
Drill the door leaf not through, but in such a way that the guide center of the tool used comes out.
Continue drilling on the other side, this will avoid pricking the veneer on the face of the door. Unscrew the peephole into two parts, insert the first part with an external thread from the outside of the door leaf, insert the second part of the peephole, respectively, from the inside of the door, unscrew the parts. Tighten the peephole, to do this, use the slots on the inner frame of the device. In order for the screwdriver not to fall off, it is necessary that the tip of the tool enters both slots.
Suitable thickness steel plate can be used. This completes the installation of the door optical device.
The front door is a means that separates the personal space inside the house from the outside world. The thicker and stronger the door, the more reliable its protection. However, often the inhabitants of the house simply need to find out what is happening behind the door, for example, if someone calls or any extraneous sounds are heard behind it. The easiest way to control the situation is to install a door peephole. In the article, we will consider the types of door locks and how to install them.
The modern peephole became widespread only in the 1960s. Its founding father is considered to be the American scientist, writer and inventor Robert Wood, who invented the wide-angle fisheye lens back in 1906.
However, it took quite a long time before his invention received well-deserved fame, distribution and application in everyday life.
Today you can buy door eyes different not only in shape and size, but also in functionality.
Door peephole design
The standard peephole design consists of:
- a lens directed at an external object (lens);
- outer rail;
- clamps on the sides of the lens;
- eye body;
- inner nut;
- lens directed inward (eyepiece);
- damper.
Depending on the length of the peephole body, from 2 to 15 lenses can be located in it.
How to choose a peephole?
There are several main factors to consider when choosing a peephole.
The first and most important factor is the viewing angle.. The higher this indicator, the higher the level of security, because not only the person’s face at the door will be visible, but also the space below and on the sides, which is very useful in the modern, unfortunately, too criminal world.
- The optimal viewing angle is 180 °, although manufacturers often make the angle a little more than 200 °, in order to remove distortion along the viewing boundaries, the same 180 ° will eventually remain the working spectrum.
- Another trick that manufacturers use to increase the viewing angle is to move the focus of the lens forward. This design provides a greater overview of space.
The next factor determining the choice of peephole is the width of the door.. Depending on this, one of the eye options is selected:
- standard (if the door is 30 to 55 mm thick);
- elongated (if the door is 55 to 100 mm thick);
- long (if the door is more than 100 mm thick).
The most common are the eyes. standard size, they are suitable for any modern metal or wooden doors. Width adjustment is made using a thread that is on any eye. However, if the door will be insulated from the outside or from the inside, the usual length of the eye may not be enough.
Tip: when buying an elongated or extra long eyelet, it is important to pay attention to its optical characteristics, which should differ from the standard version. Unfortunately, many manufacturers, in order to reduce the cost final product, simply complete the standard peephole with a long rear nut, without changing the optical characteristics. These actions are fraught with a decrease in the viewing angle, as well as poor visibility of objects.
- In addition to the width of the door itself, it is important to consider the width of the peephole diameter. The larger it is, the higher the aperture ratio of the lenses installed in it. High luminosity allows you to see objects more clearly, while it is not necessary to come close to the peephole, the external space will be clearly visible from a distance of 5-7 cm from the peephole, while maintaining a wide viewing angle.
- The only additional comment on the wide diameter is that in the future it will no longer be possible to replace it with a narrower one, because. the hole for it is correspondingly wider than the standard one.
The material from which the peephole is made, is, perhaps, decisive in the final price of the product. There are two main materials for eyelet housings: metal and plastic. Metal is more durable and resistant to external influences, plastic can be deformed or cracked, for example, due to temperature changes.
Lens materials are also different - plastic, ordinary glass or spectacle optics.
- The main disadvantage of plastic optics is its fragility. Over time, it tends to become cloudy and deformed. In addition, plastic accumulates static electricity and attracts dust. All these factors lead to an early, already in the second or third year of operation, loss of image clarity.
- Glass does not have such problems, but it is more fragile compared to spectacle optics. The only disadvantage of glass optics is its higher price compared to plastic. Although, strength and durability will more than pay for the costs.
Latch on the door peephole
Gate valve has become essential element door peephole, it performs both a passive safety function - so that it is not visible from the outside whether someone is in the house or not, and an aesthetic function - light from the outside does not penetrate into the room.
- It also allows the observer to freely approach the door and choose whether to open it to people outside. There is always someone who simply does not want to open the door, without any objective safety factors or good manners.
- Sometimes the role of the valve is performed by mirror coating of the objective lens. It is quite popular because it does not require additional internal elements peephole, however, the reduced brightness of the image can be called a minus.
Door peephole installation
Installation is quite simple and does not require special skills. If the door does not have a special hole for the peephole, it must be drilled.
- For this, a place is selected on the door where it will be located, glued masking tape and markup is done.
- Then a hole of the required diameter is drilled on both sides of the door.
- A tip with a lens is inserted from the outside of the door and tightly screwed on by the viewfinder from the inside.
Types of door eyes
- Panoramic eye. His hallmark is a lens divided into two lenses. Thanks to this design, the lens receives a greater light flux and gives a panoramic image, in order to see which it is not necessary to stand directly opposite and close to the eye.
- Bulletproof eye. The functionality is in the name, it provides increased security.
- Secret eye. It is usually disguised as nails in the door trim. As a rule, this is a construction of a microvideo camera on outer door and receiving device inside.
- peephole for double door, allows you to view the space without opening inner door. Has two components.
- Peephole-periscope. In this type of eye, the lens and the eyepiece are at different levels. This type is very popular with families with children, because it allows you to arrange the components so that the eyepieces are both at a level convenient for an adult and at a child's height.
Video-eye
It is worth dwelling on this type of eye in more detail, since this model is gaining more and more popularity from year to year, which is not surprising in the era of technological progress.
The principle of operation of the door peephole with a camera
At one end, a video camera is installed, usually small or micro-sized, built into the door. It transmits the image to the receiving monitor. The picture can be transmitted both constantly, in real time, and on demand.
What is important to consider when choosing a video eye?
- As in the case of a conventional peephole, the viewing angle is paramount. Thanks to technical solutions and telescopic attachments, in most cases this issue is perfectly resolved, and video eyes provide an excellent full review area in front of the door.
- Others no less an important factor is the sensitivity of the eye to light. The higher it is, the better the eye "sees" in poor lighting. You can check this point in technical specifications cameras built into the door surface.
- According to their device, video eyes are divided into case and frameless. The former are more reliable and durable, while the latter are cheaper and easier to install.
- Video surveillance can be organized according to one of the two following schemes:
- the signal is broadcast over a radio channel in the UHF range, using a television signal transmitter to receive it on a TV.
- the image is transmitted via cable directly to the low-frequency output of the monitor or TV.
- It is better to entrust the installation of a video eye to professionals, since certain knowledge and skills will be required to set up the signal. Also, you may need to work on laying the cable in the apartment.
- If there is a desire or need, in addition to video surveillance, to be able to observe through a standard peephole, it is worth considering installing a hidden camera with a lens. Of the pluses, it is worth noting the round-the-clock recording of the territory in front of the door and the opportunity, if necessary, to view this material.
Electronic wireless door peephole
The electronic eye is a variation of the video eye, in that the image is also transmitted to the monitor and there is no direct observation through the eyepiece.
However, there are significant differences:
- The electronic peephole consists of a doorbell and a video camera that are mounted on the outside of the door, as well as an LCD display for the inside. When you press the call button, the device activates the liquid crystal display, takes a photo and starts video recording. The device is equipped with a slot for memory cards, in the settings you can change the parameters of photo and video recording.
- An electronic peephole allows you to see what is happening outside at any time, for this you need to activate the LCD display with a touch and select the appropriate menu section. It can conduct video recording even in low or no light, for this you need to select the use of infrared illumination in the settings.
- Unlike video peepholes, the installation of an electronic peephole is simply elementary, the place where a standard peephole was previously installed is used as a hole, no additional work drilling is not required. No wires or other connections are needed. This device runs on batteries. And its cost is relatively low.
As a completion. The most important thing in a room is its comfort and safety, modern door eyes are able to meet the highest requirements of consumers, but no matter how good it is, and no matter how strong the door on which it is located, the common sense and caution of the residents remain the main factor.
Think installing a peephole is difficult? The accumulated experience allows me to assert that even an inexperienced master can do this work. I will tell you how to choose high-quality equipment and give instructions with illustrations that will allow even those who have never put a peephole in the door to cope with the work.
The main element of ordinary eyes is a wide-angle fisheye lens, which provides a high-quality view of space. Electronic versions use a camera.
First, let's look at what types of eyes are:
| Illustration | Description |
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standard peephole door. This option is simple and consists of two parts - outer and inner, which are twisted together. A lid may be present in the design to close the hole from light penetration. |
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Panoramic peephole. His distinguishing feature- a lens divided into two lenses. This design allows more light to pass through. To see the image, it is not necessary to stand close, you can be located on the side of the structure. |
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Double door system. It can be either standard or panoramic. The design consists of two parts, during installation, special accuracy must be observed so that the elements match. |
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Bulletproof option. Used on bulletproof door panels to ensure structural integrity. According to the installation method, it is no different from the usual version. |
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Peephole-periscope. This option is ideal for those with small children. You can watch both in the normal position and at the bottom, which is very convenient if you need to exclude the option of opening the door to strangers. The system is quite difficult to install, so most often the work is done by specialists. |
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Video peephole electronic type. Previously, video options required signal settings in order to transmit it to a monitor or TV. Modern technologies made it possible to make a compact and simple version that anyone can easily install. |
If you have decided on the type, it is worth understanding several criteria that are taken into account when choosing:
- Viewing angle. The larger it is, the better you can see the space in front of the entrance. For cheap options, the angle is 120 degrees, for more advanced ones - 180 degrees. The highest quality modifications have a view of over 200 degrees, this allows you to eliminate distortion along the edges of the image;
- Door leaf thickness. There are three product options:
- up to 60 mm;
- up to 100 mm;
- over 100 mm.
Any version of the eye is adjustable by 20-30 mm due to the thread. Some models come with different bushings so you can match optimal solution under your door;
- Eye diameter. This indicator determines the size of the hole to be drilled. If in new designs you can choose any option, then when replacing old elements, it is easiest to choose products of the same size. Most often, the diameter of the inner part is 20 mm;
- Production material. Optics can be plastic or glass, the price of the first option is much lower, but the second is much stronger and more durable. The case can be made of plastic or metal, the second option is preferable, although it costs more.
I will talk about two options for carrying out work: installing a regular peephole and a variant with video surveillance.
Mounting a standard peephole
We will figure out how to install a peephole in a metal door.
| Illustration | Stage description |
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Measurements are being made. We are primarily interested in the thickness of the canvas, other dimensions are not so important. Knowing the thickness, you can choose a suitable peephole, and not buy it at random. |
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The instrument is being prepared. To do the work yourself, you need the following:
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The center of the door leaf is marked. The eye is usually located in the middle, so use a tape measure and a pencil to mark the middle. |
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The height of the peephole is noted. Standard option- this is 150 cm from the floor level, but you can raise or lower the peephole so that its use is as comfortable as possible. |
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Drilling in progress. First of all, in a metal door you need to drill through hole 5 mm in diameter. It is very important to use a drill of sufficient length so that it comes out with reverse side doors.
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Drilling a hole from the outside. A crown for metal is inserted into a screwdriver or an electric drill, with the help of which the hole expands to the diameter we need. It is important to work carefully so as not to damage the door leaf and not bend it. |
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Drilled lining from the inside. For work, a pen drill is used, the main thing is to hold the screwdriver evenly so as not to go to the side. |
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The hole is cleared of debris and checked. Just look through it, if there are no distortions, then everything is done as it should. |
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The peephole is fixed. To do this, it should be held from the outside and screwed in from the inside. If there is a key in the kit, then you can additionally clamp the knot from the inside. |
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Checking system operation. Close the door and look through the peephole. This completes the installation. |
Installation of an electronic peephole
Consider how the camera is installed:
| Illustration | Stage description |
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This is what the camera kit looks like. It includes:
All you need is a screwdriver to work. |
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The battery is inserted. If your system is powered by batteries, then batteries are installed. |
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Inserting a memory card. A special slot is provided for it, you will not confuse anything in any case. |
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Filmed protective film between power contacts. Usually there is a tab on the outside that you need to pull and thereby remove the protection from the contacts. |
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The sleeve is twisted from the camera. It will hold the element from the inside, so it should be removed in advance. |
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The sleeve is inserted into the mounting platform of the camera. On this preparatory work completed. |
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A platform with a sleeve is placed on the door leaf. For clarity, the work is shown on a transparent module that imitates doors 70 mm thick. Naturally, before changing the system, you need to remove the old peephole. If you have new door, then all the features of drilling holes are described above, the technology is also suitable for this case. |
The peephole, as well as when choosing and installing it, should be guided by the safety and conditions for maximum visibility of the site, while taking into account the material of the entrance door itself. Expensive with the maximum level of vision have an angle of 180 degrees, which allows you to view the site right up to the mat under yours. The panoramic viewing angle of the cheaper options is approximately 120 degrees and does not provide any special advantages either in efficiency or in the quality of viewing the site.
Today, video eyes with a built-in camera connected to a computer or laptop like a standard webcam are quite popular.
If you are going to buy and install a peephole yourself, do not forget to take into account the thickness of your door leaf. You can easily choose the length of the eyelet body and its diameter from a wide range. Remember that the length of the eyelet can be additionally adjusted using the thread on its body.
Traditionally, door eyes are made of plastic and metal, while their optics are glass and polymer (as well as plastic). The advantages of glass optics are better image quality, resistance to mechanical damage (scratches and dust), and the absence of haze.
Eyes, the most optimal in terms of their qualities and characteristics, have a metal case and glass, but their cost is higher than that of budget door models.
Door installation
Installing a peephole in the door is carried out taking into account the growth of the owner of the apartment. It is necessary to mark the center on the door, based on the desired height, and mark the resulting mark with an awl - this will not slip. Also, before marking the place for installation, glue a strip of adhesive tape on the selected area of the door leaf. Now you can put notches without fear of spoiling the door lining.
To prevent chips from forming in the door when drilling, the marking of the future hole is carried out on both sides of the door.
Having chosen the diameter of the drill (slightly larger than the diameter of the threaded peephole), start drilling the marked holes on each side of the door, plunging the drill half the thickness of the door leaf. Unscrew the peephole and install the external threaded part on the outside and the internal threaded part on the inside. After the holes are drilled, screw the peephole into the door, tighten it with slots and enjoy a safe view of the staircase area.