JP3165452B2 - Door phone cord with camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom with a camera provided with a camera section angle adjusting mechanism for changing an imaging direction.

[0002]

2. Description of the Related Art A door phone with a camera is installed on a gate at the entrance of a dwelling unit and serves as a child unit of a housing information panel provided with a monitor television installed in a living room or the like in a dwelling unit.
Therefore, the camera-equipped door phone handset is electrically connected to the house information panel, and an imaging camera for appropriately imaging the visitor and transmitting a video signal to the house information panel, for a chime in which the visitor informs the resident of the visit. , A transmission / reception unit for a visitor to talk with a resident, and the like.

[0003] By the way, the camera-equipped door phone handset is installed at a position such as a gate post where it is easy to capture the image of the visitor, but it is necessary to change the imaging direction in order to appropriately capture the image of the visitor. A camera section angle adjustment mechanism is provided.

FIG. 5 is a horizontal sectional view showing a main part of a camera angle adjusting mechanism of a conventional door phone handset with a camera, and a filter 1a appropriately subjected to light transmission processing is provided on the front surface of a substantially box-shaped housing 1. The body 2 is embedded and fixed to the housing 1. The body 2 has such a shape that a ball is pressed from the inside to the rear surface of the box and protrudes, and a rear inner surface 2a which is a part of a bowl-shaped spherical surface is formed at the rear portion of the body 2.
The front surface of the body 2 has a round opening, and the opening side surface 2b is also formed by a part of the spherical surface.

[0005] Inside the body 2, a turntable 3 having a cut portion 3 a obtained by cutting a part of a sphere in a plane is slidably held between a rear inner surface 2 a of the body 2 and an opening side surface 2 b of the body 2. The sliding portion 5 is formed at the contact surface between the rear inner surface 2a of the body 2 and the turntable 3, and the cutout portion 3 of the turntable 3 is formed.
The portion including a is exposed through the opening side surface 2b of the body 2. Further, an imaging camera 4 is built in and fixed in the vicinity of the cutout 3a inside the body 2, and the imaging camera 4 transmits the filter 1a from the cutout 3a to image the outside. Note that the arrow line A indicates the imaging optical axis direction of the imaging camera 4.

Therefore, even if the housing 1 of the door phone with camera is buried and installed in the gate post or the like at the entrance, the filter 1a is detached from the housing 1 and the turntable 3 is slid with the finger, so that the door phone with camera is provided. The imaging direction of the slave unit can be changed in a left-right direction indicated by an arrow line B and a vertical direction indicated by an arrow line C.
Therefore, the imaging direction of the camera-equipped door phone handset can be adjusted in all directions within a predetermined solid angle. In addition, spin sliding that rotates around the imaging optical axis of the imaging camera 4 as shown by an arrow line D in FIG. 5 is also possible.

FIGS. 6 to 8 show the relationship between the image of the imaging camera 4 in the housing 1 and the image of the monitor television 7 in the case where the spin sliding which rotates around the imaging optical axis of the imaging camera 4 occurs. FIG. 6 shows an image displayed on the monitor TV 7 by the imaging camera 4 at the original position, and the visitor stands upright on the monitor TV 7. FIG. 7 shows an image displayed on the monitor television 7 by the imaging camera 4 when the imaging camera 4 spins clockwise, and the visitor leans to the right on the monitor television 7. FIG. 8 shows an image displayed on the monitor television 7 by the imaging camera 4 when the imaging camera 4 spins counterclockwise, and the visitor is tilted to the left on the monitor television 7.

[0008]

Therefore, in the camera angle adjusting mechanism of the above-mentioned conventional door phone with camera, when the turntable 3 is slid with a finger to adjust the imaging direction, As shown by an arrow line D in FIG. 5, spin sliding that rotates around the imaging optical axis of the imaging camera 4 may also occur, so that the image projected on the monitor television 7 may be tilted to the left and right, making it difficult to see. There was a problem to say.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to once install a camera-equipped intercom with a horizontal / vertical setting, and then rotate the intercom with a camera. It is an object of the present invention to provide an intercom unit with a camera that can maintain an image displayed on a monitor television horizontally and vertically at all times even if the imaging direction is adjusted by sliding the table, and that enables easy and accurate monitoring.

[0010]

Since the present invention SUMMARY OF] is to solve the above problems, a body having a portion of a spherical surface, the body
Turntable having a spherical portion that is in sliding contact with the spherical surface of the
An imaging camera is arranged in the turntable, a sliding portion is formed by the spherical surface of the body and the spherical portion of the turntable, and by sliding the turntable, the imaging direction can be changed in all directions within a predetermined solid angle. An adjustable door phone with a camera, wherein the spherical surface of the body and the turntable
A first convex portion is provided on the body side of the rotary table receiver, and a second convex portion is provided on the rotary table receiving side of the rotary table. A first groove in which the first convex portion fits and slides, and a second groove in which the second convex portion fits and slides on the turntable side of the turntable support; A first groove and a second groove are provided along the latitude and longitude directions of the spherical surface, respectively, and the first and second protrusions are respectively formed by the first and second grooves. Characterized in that they cannot be rotated around the respective convex portions in the grooves.

[0011]

According to the above construction, once the intercom with camera is set up horizontally and vertically, the turntable is provided on the second projection provided on the turntable and on the turntable support. It can slide only in the direction regulated by the second groove, but does not rotate around the second projection. The turntable support can slide only in the direction regulated by the first protrusion provided on the turntable support and the first groove provided on the body, but does not rotate around the first protrusion. Further, since the first groove and the second groove are respectively provided along the latitude and longitude directions of the spherical surface, the imaging direction can be adjusted in all directions within a predetermined solid angle, but with the imaging optical axis as the axis. No spin rotation occurs.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a door phone handset with a camera according to the present invention will be described below in detail with reference to FIGS.

FIGS. 1 and 2 are horizontal sectional views showing a main part of a camera section angle adjusting mechanism of a door phone handset with a camera according to the present invention, and FIGS. 3 and 4 are vertical sectional views showing the same. The same parts as those in the conventional example are denoted by the same reference numerals.

The present embodiment is characterized in that a contact surface between the rear inner surface 2a of the body 2 and the turntable 3 is provided on the rear inner surface 2a.
a and a turntable 3, a substantially spherical fragmentary turntable support 6 interposed slidably between the turntable 3 and a first protrusion 6 a is provided substantially at the center of the rear surface of the turntable support 6. A second convex portion 3b is provided on the outer surface of the turntable 3 substantially at the position of the extension of the imaging optical axis. A first groove 2c is provided in which the convex portion 6a can be fitted and slid, and the second convex portion 3b can be fitted and slid in the left-right direction (longitudinal direction) substantially at the center of the front surface of the turntable support 6. And the first and second protrusions 6a and 3b are prevented from rotating around the respective protrusions 6a and 3b in the first and second grooves 2c and 6b. , First
Is that the protrusion 6a and the second protrusion 3b have appropriate lengths in the directions of the grooves 2c and 6b, respectively.

Therefore, if a force for sliding in the left-right direction (longitudinal direction) indicated by arrow B is applied to the turntable 3, the turntable support 6
Cannot slide because the first convex portion 6a is restricted by the first groove 2c with respect to the rear inner surface 2a of the body 2, and only the turntable 3 moves along the second groove 6b of the turntable support 6. The image can be adjusted left and right by sliding. When a force for sliding the turntable 3 in the vertical direction (latitude direction) indicated by the arrow C is applied, the second convex portion 6a of the turntable 3 is restricted by the second groove 2c of the turntable receiver 6. Therefore, the turntable support 6 receives a sliding force in the vertical direction (latitude direction), and the turntable support 6 slides in the vertical direction (latitude direction) along the first groove 2 c of the rear inner surface 2 a of the body 2. It can move and adjust the imaging direction up and down. However, with respect to the spin rotation around the imaging optical axis, the turntable 3 cannot spin with respect to the turntable 6, and the turntable 6
Cannot rotate with respect to the rear inner surface 2a, and as a result, the turntable 3 cannot perform spin rotation sliding about the imaging optical axis.

FIG. 2 shows a state in which the image pickup optical axis is set to the left end by sliding the turntable 3, and FIG. 4 shows a state in which the image pickup optical axis is set to the upper limit by sliding the turntable 3. ing. FIG. 1
4, the arrow line α indicates the groove length range of the second groove 6b that determines the adjustment angle range in the horizontal direction, and the arrow line β indicates the groove length range of the first groove 2c that determines the adjustment angle range in the vertical direction. The respective groove length ranges are shown.

Therefore, in order to adjust the imaging direction of the camera-equipped door phone handset according to the present invention, the filter 1a is detached from the housing 1 and the turntable 3 is slid up, down, left and right with a finger as in the prior art. The imaging direction of the doorphone handset can be adjusted in all directions within a predetermined solid angle, but spin rotation around the imaging optical axis does not occur, and once the camera doorphone handset is set horizontally and vertically, The images displayed on the monitor television can always be maintained horizontally and vertically.

Note that the first groove, the second groove, the first projection,
It goes without saying that each of the second convex portions may be a track, and may slide with a ball bearing interposed therebetween.

[0019]

As described above, the doorphone slave unit with camera according to the present invention is constructed as described above. Therefore, once the doorphone slave unit with camera is set horizontally and vertically, the imaging direction is changed to a predetermined solid angle. It is possible to provide an intercom unit with a camera that can be adjusted in all directions, up, down, left, and right, and can always maintain the image projected on the monitor TV horizontally and vertically, and the projected image can be monitored easily without tilting and easy to see and monitor accurately It has the effect of saying

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view showing a main part of a camera angle adjusting mechanism of an embodiment of a doorphone slave device with a camera according to the present invention.

FIG. 2 is a horizontal cross-sectional view showing a main part of a camera angle adjusting mechanism of an embodiment of a doorphone handset with a camera of the present invention, in a state where an imaging optical axis is set to a left end.

FIG. 3 is a vertical sectional view showing a main part of a camera angle adjusting mechanism of one embodiment of a doorphone handset with a camera according to the present invention.

FIG. 4 is a vertical cross-sectional view showing a main part of a camera unit angle adjusting mechanism of an embodiment of a doorphone handset with a camera of the present invention, with an imaging optical axis set to an upper limit.

FIG. 5 is a horizontal cross-sectional view showing a main part of a camera section angle adjusting mechanism of a conventional door phone handset with a camera.

FIG. 6 is an explanatory diagram showing a relationship between an image pickup camera and an image displayed on a monitor television when the turntable rotates with respect to the image pickup optical axis.

FIG. 7 is an explanatory diagram showing a relationship between an image pickup camera and an image displayed on a monitor television when the turntable rotates with respect to the image pickup optical axis.

FIG. 8 is an explanatory diagram showing a relationship between an image pickup camera and an image displayed on a monitor television when the turntable rotates with respect to the image pickup optical axis.

[Explanation of symbols]

 Reference Signs List 1 housing 2 body 2c first groove 3 turntable 3b second protrusion 4 imaging camera 6 turntable receiver 6a first protrusion 6b second groove

Continuation of the front page (56) References JP-A-63-118134 (JP, A) JP-A-63-275851 (JP, A) JP-A-62-191840 (JP, A) JP-A-1-85718 (JP) , U)

Claims (1)

(57) [Claims] A body having a 1. A portion of a spherical surface, the Bode
A rotating table having a spherical portion that comes into sliding contact with the spherical surface of the body; an imaging camera is disposed in the rotating table; a sliding portion is formed by the spherical surface of the body and the spherical portion of the rotating table; in the camera-equipped intercom slave unit that can be adjusted in all directions the imaging direction within a predetermined solid angle by sliding, of the body spherical surface and times
A turntable support interposed between the turntable spherical surface and a turntable support, a first protrusion provided on the body side of the turntable support, and a second protrusion provided on the turntable support side of the turntable; The first surface
A first groove on which the second convex portion fits and slides is provided on the turntable side of the turntable support; A second groove is provided along each of the latitude and longitude directions of the spherical surface, and each of the first convex portion and the second convex portion is respectively convex in the first groove and the second groove. A doorphone slave unit with a camera, characterized in that it cannot be rotated about a part.