JPH08195901A - Doorphone with camera - Google Patents

Abstract

PURPOSE: To provide a doorphone with a camera equipped with a shielding part for which assembly is satisfactory and hygroscopicity is reduced. CONSTITUTION: Concerning this doorphone with a camera, a video camera 5 is built in a housing 4, which is formed by mutually coupling a cover part 1 and a body part 3, and formed so as to pick up images. A light emitting part 7 for irradiating the front side of the cover part with infrared rays and a shielding part 8 between the light emitting part and the video camera so as to prevent the video camera from being irradiated with infrared rays are provided inside the housing. This shielding part is made of hard resin and provided with almost planar counter pieces parallelly provided at almost the central part between the light emitting part and the video camera and almost planar connectors provided for connecting the counter pieces and equipped with a camera window for inserting the video camera at almost the central part, and the counter pieces and the connectors are formed integrally with the cover part in the shape of almost a U-shaped cross section so that the cover part can be turned forward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door intercom with a camera having a built-in television camera provided at a front door or the like.

[0002]

2. Description of the Related Art Recently, when a resident makes a call with a visitor who visits a front door, the caller can check the appearance of the visitor on a monitor TV set in the living room of the residence. Door intercom with camera is used. As shown in FIGS. 21 and 22, this door intercom with a camera has a housing 4 formed by connecting a cover portion 1 and a body portion 3 to each other.
It has a built-in TV camera 5 and is designed to capture visitors, etc. in front of the doorphone with camera, so that the visitors can clearly capture images even in the dark at night. In addition, it is formed so that infrared light is emitted to the front of the cover 1 from the light emitting parts 7, 7 which are arranged in parallel with the television camera 5 and which are composed of infrared LEDs. Also, this light emitting unit
A flat plate-shaped shield section 8,8 made of non-woven fabric is provided between 7,7 and the TV camera 5 to prevent infrared light emitted from the light emitting sections 7,7 from directly entering the TV camera 5. There is. Further, FIGS. 23 and 24 show another conventional example of the cover part 1, which also has a shield part 8 made of non-woven fabric attached to the cover part 1 so that the infrared light emitted from the light emitting part is directly exposed. It prevents you from entering the TV camera 5.

[0003]

As described above, in the conventional door intercom with a camera, the shielding part made of a non-woven fabric is provided in parallel between the television camera and the light emitting part so that the infrared light emitted from the light emitting part is not emitted. It is designed to prevent direct entry into the TV camera and capture clear images of visitors. However, since the shielding part is made of non-woven fabric, it is not easy to assemble because it is troublesome to attach the non-woven fabric and the bending of the non-woven fabric is likely to occur. It may affect the built-in electrical components.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a door intercom with a camera having a shielding portion which is easily assembled and has a low hygroscopic property.

[0005]

In order to solve the above-mentioned problems, the camera-equipped intercom according to claim 1 has a television camera built in a housing formed by connecting a cover portion and a body portion to each other. A door intercom with a camera formed so that an image can be picked up by a camera, wherein a light emitting unit that irradiates infrared light to the front of the cover unit in a housing, and infrared light to the TV camera between the light emitting unit and the TV camera. In a door intercom with a camera having a shielding portion for preventing irradiation, the shielding portion is made of hard resin and is formed integrally with the cover portion.

According to a second aspect of the present invention, there is provided a door intercom with a camera, wherein the shielding part according to the first aspect is provided with a substantially plate-like facing piece provided in parallel with a light emitting portion and a substantially central portion of a television camera, and the facing piece. A substantially plate-shaped connecting piece which has a camera window through which a television camera is inserted and which is located in a substantially central portion, and the facing piece and the connecting piece have a substantially U-shaped cross section so that the opening side thereof faces the front of the cover portion. The structure is formed in a shape.

According to a third aspect of the present invention, the intercom with camera has the cover portion detachably formed with the shielding portion according to the first or second aspect.

According to a fourth aspect of the door intercom with camera, the shielding portion according to the first to third aspects is formed in black.

[0009]

According to the structure described in claim 1, since the shielding portion is formed of a hard resin so as to be integrated with the cover portion, the assemblability is good, and unlike the non-woven fabric, it is made of a hard resin so that it absorbs moisture. There is little nature.

According to the second aspect of the invention, in addition to the effect of the first aspect, since the television camera is inserted into the camera window of the connecting piece of the shielding portion having a substantially U-shaped cross section, the light emission is achieved. It is further prevented that some infrared light enters the television camera.

According to the third aspect of the present invention, in addition to the effect of the first or second aspect, the shield portion can be detached from the cover portion and replaced, so that one type of shield portion has a different shape. It can be attached to the cover.

According to the structure of claim 4, in addition to the effects of claims 1 to 3, since the shielding part is black, reflection of infrared light is suppressed, and the infrared light of the light emitting part is further suppressed. Are prevented from entering the TV camera.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. Members having the same basic functions as those described in the conventional example are designated by the same reference numerals.
FIG. 1 is a sectional view of a door intercom with a camera according to the present invention, which is a housing in which a cover portion 1 and a body portion 3 are connected to each other.
4 and a TV camera 5 built into its housing 4
The light emitting section 7 and the shielding section 8 are the main constituent members.

The cover 1 is made of a black hard resin and is formed in a substantially box shape having an image pickup window 1a and a speaker window 1b. The imaging window 1a is a rectangular penetrating hole, and in front of it is a transparent flat plate filter capable of transmitting infrared light.
2 is attached. The body portion 3 is also made of black hard resin and is formed in a substantially box shape. The housing 4 is formed by joining the body 3 and the cover 1.

The TV camera 5 is for taking an image of a visitor or the like in front of the cover section 1 with the lens 5a.
The image pickup direction of the lens 5a is vertically movable by the 6. The camera unit 6 is attached to the body portion 3 so that the lens 5a of the television camera 5 is located substantially in the center of the imaging window 1a of the cover portion 1 and faces the front of the cover portion 1. An angle adjusting screw 6a adjusts the imaging direction of the lens 5a. 6b is a rotary plate to which the television camera 5 and the light emitting section 7 described below are fixed.

The light-emitting portions 7, 7 irradiate infrared light to the front of the cover portion 1 by emitting light to illuminate a visitor or the like, and are formed of infrared LEDs. The light emitting parts 7, 7 are fixed to the rotary plate 6b so as to be arranged side by side in the horizontal direction with the television camera 5 as the center. Therefore, the imaging window 1a of the cover unit 1
Located on both ends.

The shielding portion 8 prevents infrared rays from irradiating the lens 5a of the television camera 5, is made of a black opaque hard resin, and covers the imaging window 1a of the cover portion 1. Formed integrally with part 1. This shield 8 is
The opening side 8a is formed by the 9, 9 and the connecting piece 10 so as to face the front of the cover portion 1 and has a substantially U-shaped cross section. This facing piece 9,
Reference numeral 9 is a substantially plate-like member that is bent in a V shape and is arranged in parallel in the approximate center of the light emitting section 7 and the TV camera 5, and the connecting piece 10 connects the facing pieces 9 and 9. The camera window 10a having an elliptical shape in the up-and-down direction through which is inserted is provided at the substantially central portion.
Therefore, the shielding portion 8 is formed in a substantially Y-shaped cross-section with a substantially U shape, and the light emitting portions 7, 7 are located on both sides of the shielding portion 8.

Reference numeral 11 denotes a speaker, which outputs voice and the like, and is attached to the inside of the speaker window 1b of the cover portion 1.
A control unit 12 controls the intercom with camera, and is attached to the body unit 3. A fixed frame 13 is attached to the housing 4 and fixed to a wall or the like. 14
Is a makeup cover, which is attached to the front surface of the cover unit 1.

The doorphone with a camera having the above-described structure has a light emitting section.
When 7 emits light, the infrared light passes through both sides of the shield 8 of the imaging window 1a of the cover 1, passes through the filter 2, and then irradiates visitors or the like. Visitors, etc. can be confirmed by capturing an image of the visitors, etc. illuminated by the infrared light with the TV camera 5 and transmitting it to a monitor TV (not shown) installed in the living room of the residence, etc. . At this time, the infrared light output from the light emitting unit 7 is blocked by the shielding unit 8 and is not directly radiated to the lens 5a of the television camera 5 inside the housing 4. Further, since the housing 4 and the shielding portion 8 are formed in black, it is possible to suppress the internal reflection of infrared light.

The cover portion 1 and the shield portion 8 may be integrally formed at the time of molding, or they may be molded separately and then integrated by adhesion or the like.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on. In this embodiment, the shielding portion 8 is detachable from the cover portion 1.

As shown in FIGS. 12 to 15, the shield 8 is
It is an independent component and is made of black opaque hard resin. The shielding portion 8 is composed of a rectangular ring-shaped shielding portion main body 18, facing pieces 9 and 9 and a connecting piece 10 similar to those in the first embodiment. The shield part main body 18 has substantially the same outer shape as the imaging window 1a of the cover part 1, and has a triangular cross section on the outer periphery of the shield part main body 18 so as to be fitted and fixed to the imaging window 1a.
It has locking pieces 19 and 19 and a second locking piece 20 having a rectangular cross section.

In this device, with the second locking piece 20 locked to the frame of the image pickup window 1a of the cover 1, the first locking pieces 19 and 19 are fitted so that the shield 8 is covered. Become one with. By doing so, one type of the shielding portion 8 can cope with the cover portions 1 having different shapes, so that the number of parts is reduced, management at the time of manufacturing is facilitated, and productivity is improved.

FIG. 16 shows a modified example of the shielding portion 8, which is a connecting piece.
The positions of the 10 camera windows 10a are slightly different from those in the second embodiment. By preparing a plurality of such shields 8, the shields 8 can be selected according to the height of the installation location of the door intercom with camera.

Next, a third embodiment of the present invention will be described with reference to FIGS.
It will be described based on. This embodiment differs from the second embodiment in the structure of the shielding portion 8.

The shielding part 8 is a rectangular ring-shaped shielding part body 18
And the opposing pieces 9 and 9. Therefore, the television camera (not shown) is located inside the opposing pieces 9 and 9 and is not inserted into the camera window 10a of the connecting piece 10.

Even with such a structure, the infrared light output from the light emitting section 7 is blocked by the shielding section 8 and is not directly irradiated on the lens 5a of the television camera 5 inside the housing 4. Absent. 19 and 20 show a modified example of the shielding portion 8, in which the facing pieces 9 and 9 are formed in a linear shape.

The light emitting parts are provided on both sides of the TV camera.
Although they are arranged side by side, they are not limited to this, and may be one or three or more. Further, the shield part is fixed to the cover part or detachable, but the point is that the cover part is made of resin and integrated, and the shape is not limited to that of the embodiment, and the shape of the TV camera and the light emitting part is not limited. Anything can be used as long as it is provided between them. Furthermore, although the cover portion, the body portion, and the shield portion are formed of black resin, other colors may be used as a matter of course.

[0029]

According to the door intercom with camera of the first aspect of the present invention, since the shielding portion is made of a hard resin so as to be integrated with the cover portion, the assemblability is good, and unlike the non-woven fabric, it is made of a hard resin. Therefore, since it has a low hygroscopic property, it is unlikely to affect electric parts and the like, and reliability is improved.

In addition to the effect of claim 1, the door intercom with camera according to claim 2 emits light because the television camera is inserted into the camera window of the connecting piece of the shielding portion having a substantially U-shaped cross section. Since it is further prevented that the infrared light of the part enters the television camera, a clearer image can be taken.

In addition to the effect of claim 1 or 2, the door intercom with camera according to claim 3 can remove and replace the shield part from the cover part so that one kind of shield part has a different shape. Since it can be attached to the cover part, the number of types of the shielding part can be reduced and the productivity can be improved.

Further, in addition to the effects of claims 1 to 3, the intercom with camera according to claim 4 has a black shielding part, so that reflection of infrared light is suppressed and the infrared light of the light emitting part is further enhanced. Is prevented from entering the TV camera, so clearer images can be taken.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a doorphone with a camera showing a first embodiment of the present invention.

FIG. 2 is a partial front view of the cover portion.

FIG. 3 is a cross-sectional view of the cover part.

FIG. 4 is a vertical cross-sectional view of the cover part.

FIG. 5 is a partial rear view of the cover portion.

FIG. 6 is an exploded vertical sectional view of the intercom with camera.

FIG. 7 is a front view of the cover portion.

FIG. 8 is a front view of the intercom with camera.

FIG. 9 is a side view of the intercom with camera.

FIG. 10 is a front view of the cover portion of the intercom with camera according to the second embodiment of the present invention.

FIG. 11 is a cross-sectional view of the cover part.

FIG. 12 is a front view of the shielding part.

FIG. 13 is a vertical cross-sectional view of the shielding portion.

FIG. 14 is a cross-sectional view taken along the line AA of the shielding portion.

FIG. 15 is a back view of the shielding portion.

FIG. 16 is a front view of a shielding unit showing a modified example thereof.

FIG. 17 is a front view of a shielding portion showing a third embodiment of the present invention.

FIG. 18 is a sectional view taken along line AA of the shielding portion.

FIG. 19 is a front view of a shielding unit showing a modification thereof.

FIG. 20 is a cross-sectional view taken along the line AA of the shielding portion.

[Fig. 21] Fig. 21 is a cross-sectional view of a door door with a camera showing a conventional example of the present invention.

FIG. 22 is a partial cross-sectional view of the cover part.

[Fig. 23] Fig. 23 is a cross-sectional view of a cover part of a door intercom with camera showing another conventional example of the present invention.

FIG. 24 is a front view of the cover part.

[Explanation of symbols]

 1 Cover part 1a Imaging window 3 Body part 4 Housing 5 TV camera 5a Lens 6 Camera unit 7 Light emitting part 8 Shielding part 9 Opposite piece 10 Connecting piece 10a Camera window

Claims (4)

[Claims] 1. A door intercom with a camera in which a television camera is built in a housing formed by joining a cover portion and a body portion to each other and an image can be picked up by the television camera. In a door intercom with a camera having a light emitting unit that irradiates the front of the cover unit and a shielding unit that is located between the light emitting unit and the TV camera to prevent infrared light from being emitted to the TV camera, the shielding unit is a hard member. An intercom with camera, which is made of resin and is integrally formed with the cover part. 2. The shield part includes a substantially plate-shaped facing piece arranged in parallel at a substantially central portion of the light emitting part and the television camera, and a camera window which connects the facing piece and through which the television camera is inserted. The substantially plate-shaped connecting piece provided in the substantially central portion, and the facing piece and the connecting piece are formed in a substantially U-shaped cross-section so that the opening side thereof faces the front of the cover part. Door phone with camera. 3. The door intercom with camera according to claim 1, wherein the shielding portion is detachably formed on the cover portion. 4. The intercom with camera according to claim 1, wherein the shielding portion is formed in black.