JP2011077771A - Doorphone slave device of interphone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a doorphone slave device of an intercom, which does not make light from LED even incident even in using a wide-angle camera cover, and appropriately illuminates visitors. <P>SOLUTION: The interphone system is composed of: the doorphone slave device which is operated by a visitor to call a resident; and a room master device which notifies calling from the doorphone slave device and allows called resident to communicate with the visitor. The doorphone slave device has: a camera part which has a camera to photograph visitors and a camera cover to protect the camera; and an illumination part which has an LED to illuminate visitors if illumination is low surrounding the doorphone slave device and an LED bracket near the camera part. The doorphone slave device also has an accommodation part which has a four-sided wall so that the front side of the LED bracket is attached to a position lower than the top of the case of the doorphone slave device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an intercom entrance device, and in particular, is attached in the vicinity of a camera unit that images a visitor, and light from an LED for illuminating the visitor when the ambient illuminance is low, The present invention relates to an intercom entrance device having a structure in which it is not incident on a lens (camera cover).

Conventionally, as an entrance cordless device of this type of interphone, an entrance cordless handset having a camera, in which light emitted from an infrared light emitting element for infrared illumination arranged on the side of the camera for imaging a visitor is received. Some have a structure in which ribs are provided so as to be reflected on the camera cover on the front of the camera and not to enter the lens of the camera (for example, Patent Document 1).

According to such a structure, since light emitted from the infrared light emitting element does not enter the lens, there is no reflection, and a good image can be displayed.

JP 63-126382 A

However, a wide-angle camera is not used in the conventional intercom entrance unit. In the case of a wide-angle camera, since the camera cover has to be substantially dome-shaped, the arrangement of the ribs and the structure thereof may be complicated in the same structure. Therefore, it is necessary to arrange the light emitting element (LED) at a position separated from the camera unit, and a structure in which light from the light emitting element is not incident on the camera cover is required.

The present invention has been made to solve the above-described problems, and even a wide-angle camera cover does not capture light from the LED, and can reliably irradiate visitors. The purpose is to provide an intercom door station.

In order to achieve the above-mentioned object, the intercom entrance child device according to claim 1 of the present invention notifies an entrance child device operated by a visitor to call a resident, a call from the entrance child device, and The confirmed resident is composed of a base unit for calling with the visitor, and the entrance unit includes a camera unit including a camera for capturing the visitor and a camera cover for protecting the camera, and a camera. The front of the LED bracket constitutes the entrance cordless handset with an LED and an LED bracket for irradiating visitors when the illuminance in the vicinity where the entrance cordless handset is installed is low. It has the accommodating part which has a wall surface in four directions so that it may be attached to a position lower than on a case.

Further, the intercom entrance device according to claim 2 of the present invention is the interphone entrance device according to claim 1, wherein the wall formed on the camera unit side of the wall surface of the housing unit is formed at a right angle with the LED bracket, Another wall surface is characterized by comprising an obtuse angle.

According to a third aspect of the present invention, there is provided the intercom entrance device according to the first or second aspect, wherein the camera cover has a substantially dome shape protruding from the front surface of the case, Of these, the wall facing the wall on the camera unit side is on the camera cover and camera unit side so that the light emitted by the LED is reflected by the other wall surface of the housing and the reflected light does not enter the camera cover. The angle is larger than the perpendicular to the tangent line connecting the vertices of the wall surface.

According to a fourth aspect of the present invention, there is provided an intercom entrance device according to any one of the first to third aspects, wherein the camera cover is formed in a substantially dome shape protruding from the front surface of the case. The depth of the housing portion of the bracket is set to a depth that does not contact a tangent line connecting the camera cover and the apex of the wall surface on the camera portion side, and direct light from the LED does not enter the camera cover.

According to the intercom entrance device of the first aspect, both direct light and reflected light out of the LED light irradiated through the LED bracket are prevented from entering the cover of the wide-angle camera, and a good image is provided. be able to.

According to the intercom entrance device of claim 2, among the wall surfaces of the housing portion in which the LED bracket is housed, the wall surface on the camera unit side is a right angle and the other wall surface is configured with an obtuse angle so that the LED bracket is interposed. LED light emitted in this way can be diffused without irradiating the cover of the wide-angle camera, and visitors can be illuminated reliably.

According to the intercom entrance device of claim 3, the reflected light reflected from the wall of the housing portion in which the LED bracket is housed among the light emitted from the LED through the LED bracket is irradiated to the camera cover. Therefore, a good video can be provided.

According to the door intercom of the interphone according to the fourth aspect of the invention, the direct light of the LED light irradiated through the LED bracket is not irradiated onto the camera cover, and a good image can be provided.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an intercom entrance device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an intercom entrance device of the present invention.

The intercom entrance device 1 shown in FIG. 1 has a camera unit (camera 2 and camera cover 21) for imaging a visitor, a microphone 3 for talking with a resident, a speaker 4, and a visitor calling a resident. A call button 5 to be operated and an irradiation unit (LED bracket 6 and LED 61) for irradiating a visitor at the time of the call are configured. Further, the entrance cordless handset 1 is configured by fitting an upper case 11 (decorative panel 11a) and a lower case 12 (see FIG. 2A).

Fig.2 (a) is sectional drawing of an entrance child machine. FIG. 2B is a partially enlarged view of FIG. As shown in FIGS. 2A and 2B, the camera cover 21 that covers the camera 2 has a substantially dome shape, and protrudes to the front side from the case top 11 (the decorative panel 11a).

FIG. 2C is a further enlarged view of part of FIG. As shown in FIGS. 2B and 2C, the LED bracket 6 on the front surface of the LED 61 is disposed below the case top 11 (decorative panel 11a), specifically, the case upper 11 (decorative panel 11a). Has a depth of H. The depth H is a depth at which the wall surface of the housing portion of the camera cover 21 and the LED bracket 6 does not come into contact with the tangent line L1 connecting the vertexes of the wall surface S1 on the camera portion side.

Further, in the housing portion of the LED bracket 6, the angle formed between the wall surface S1 on the camera unit side and the LED bracket 6 is a right angle, and the other wall surface S2 is an obtuse angle. Thereby, it is difficult for the light from the LED 61 to be irradiated on the camera cover 21, so that it is possible to reliably irradiate the visitors who are in front of the entrance unit, and it is possible to obtain a good image.

The wall surface S1 on the camera unit side is not limited to a right angle, and as described above, the position does not contact the tangent line L1 connecting the apex of the wall surface S1 on the camera unit side among the wall surfaces of the camera cover 21 and the housing portion of the LED bracket 6. It is only necessary to have a depth H (refer to the cross-sectional view of the main part in FIG. 3).
Further, among the other wall surfaces S2, a wall surface S2 ′ located at a position facing the wall surface on the camera unit side is formed with an obtuse angle θ between the LED bracket 6 and the wall surface S2 ′. Then, in order to ensure that the light irradiated by the LED 61 is reflected and the reflected light does not enter the camera cover 21, an angle θ greater than the perpendicular L2 with respect to the tangent line L1 connecting the camera cover 21 and the apex of the wall surface S1 on the camera unit side. '(Θ' = θ-90 °).

When the visitor operates the call button 5 in order to call a resident in the intercom entrance handset 1 configured as described above, a call confirmation sound is reported from the speaker 4. At the same time, the camera 2 is driven and the LED 61 irradiates the visitor by the power supplied from the interphone room master (not shown).

The light irradiated by the LED 61 irradiates the visitor through the LED bracket 6. At this time, the light directed toward the camera cover 21 as direct light is reflected by the wall surface having the depth H, so that the light is not reflected on the camera cover 21.

Further, the light reflected by the other wall surface S2 (S2 ') has an angle θ that is an obtuse wall surface, so that it is possible to irradiate visitors over a wide range without affecting the vertex of the camera cover 21. In addition, the wall surface S2 ′ located at the position facing the wall surface S1 on the camera unit side is an angle θ ′ (θ ′ = θ− 90 °), the reflected light does not enter the camera cover 21 and a good image can be obtained.

A resident who has confirmed the video can make a call while checking the video of the visitor by responding.

1 is a perspective view illustrating an intercom entrance device according to an embodiment of the present invention. FIG. 2A is a cross-sectional view of an intercom entrance device according to an embodiment of the present invention. (B) is the elements on larger scale of (a), (c) is the elements on larger scale of (b). FIG. 6 is a cross-sectional view of a main part of an intercom entrance device according to another embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Entrance cordless handset 11 ... Case top 12 ... Case bottom 2 ... Camera 21 ... Camera cover 3 ... Microphone 4 ... Speaker 5 ... Call button 6 ... Lighting section (LED bracket)
61 ... LED
L1 ... Tangent
L2 ... perpendicular
H ... Depth θ ... Angle

Claims (4)

It is composed of an entrance child machine operated by a visitor to call a resident, and a room parent machine for notifying the call from the entrance child machine and confirming the call by the resident to make a call with the visitor. ,
The entrance cordless handset has a camera unit for imaging the visitor and a camera cover for protecting the camera, and an illuminance around the camera unit in the vicinity of the camera unit. A lighting unit comprising an LED and an LED bracket for illuminating the visitor when it is low,
An intercom entrance device having an accommodating portion having wall surfaces in four directions so that a front surface of the LED bracket is attached to a position lower than a case constituting the entrance device. The wall surface on the camera unit side among the wall surfaces of the housing portion is formed at a right angle with the LED bracket, and the other wall surface is configured with an obtuse angle. Intercom door station. The camera cover is configured in a substantially dome shape protruding from the front surface on the case,
Among the other wall surfaces, the wall surface at a position facing the wall surface on the camera unit side reflects the light irradiated by the LED on the other wall surface of the housing unit, and the reflected light does not enter the camera cover. 3. The intercom entrance device according to claim 1, wherein the angle is larger than a perpendicular to a tangent line connecting the top of the camera cover and the wall surface on the camera unit side. The camera cover is configured in a substantially dome shape protruding from the front surface on the case,
The depth of the housing portion of the LED bracket is a depth that does not contact a tangent line connecting the top of the camera cover and the wall surface on the camera portion side, and direct light from the LED does not enter the camera cover. 4. The intercom door station device according to claim 1, wherein the door intercom device is an interphone.

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