JPH11163789A - Light-receiving part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a feeling of incongruity from being given to the outer appearance of a light-receiving part and also to surely receive a signal without receiving the effects of an illuminating device, etc., by laminating a visible light shielding filter and an infrared transmissive filter, arranging them in front of a light receiver and providing a light-shielding part on one upper side of the filter. SOLUTION: A visible light shielding filter 2 is laminated over an infrared transmission filter 3 which transmits only infrared light and are arranged in front of a light receiver 4 inside a light-receiving part storing body 5. A black adhesive member that is a shading part 7 is arranged at an upper part between the filters 2 and 3. The filter 3 is attached to the filter 2 with the adhesive member. Then, even in a light-receiving part 1 that is used for a device in which the filter 2 is attached to the body 5 so that the outer surface of the body 5 and an exposure surface of the filter 2 are on the same surface, only the light that has a wavelength longer than that of infrared light from a range A is transmitted and light from a range B is shielded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transmitting a signal from a wireless remote controller using infrared rays (hereinafter referred to as a wireless remote controller) in a place where a lighting fixture or the like is provided without being affected by light from the lighting fixture. The present invention relates to a light receiving unit structure that can receive light.

[0002]

2. Description of the Related Art At present, wireless remote controllers are used for various home electric appliances such as air conditioners. This wireless remote controller uses infrared rays to send various signals to a light receiving unit on the device side. In general, the structure of the light receiving section
It is composed of an infrared transmission filter, an infrared light receiving element, and an electric circuit including an IC having a predetermined function. Conventionally, in order to prevent a malfunction based on light other than infrared light, for example, as shown in FIG. Are provided on the front surface of the light receiver 4 to block visible light from a lighting device or the like. Thus, a signal from the wireless remote controller can be accurately received by the light receiving unit 1 without causing a malfunction due to a lighting fixture or light such as sunlight. Further, the light receiving unit housing 5 in front of these filters 2 and 3
In some cases, a cylindrical body 6 is provided to reduce the amount of light incident on the light receiver 4.

[0003]

However, in such a conventional light receiving unit 1, although it is possible to block light other than infrared light, it is provided, for example, in an air conditioner mounted at a high place. When the received light receiving unit 1 is located very close to the lighting equipment, infrared rays from the lighting equipment may enter the light receiving unit 1 to cause malfunction, and may not receive a signal from the remote controller. There was a problem that there was a fear. When the cylindrical body 6 is provided on the front surface of the light receiving unit housing 5, that is, the light receiving unit 1 of an air conditioner or the like is provided.
When the tubular body 6 is provided on the outer surface of the device provided with the air conditioner, the external appearance of the device such as an air conditioner may be uncomfortable. Therefore, an object of the present invention is to provide a light receiving unit structure capable of reliably receiving a signal from a wireless remote controller using infrared rays without giving a sense of incongruity to the appearance of the light receiving unit and without being affected by a lighting device or the like. Things.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a light receiving portion structure for receiving a signal from a wireless remote controller using infrared light, in which a visible light shielding filter and an infrared light transmitting filter are laminated to form a light receiving device. The filter is disposed at the front, and a light-shielding portion is provided on at least one upper side of the filter.

Further, in a light-receiving portion structure for receiving a signal from a wireless remote controller using infrared rays, the outer surface of the light-receiving portion housing body for housing the light-receiving portion and the exposed surface of the visible light shielding filter are flush with each other. A visible light shielding filter and an infrared transmission filter are stacked and arranged in front of the light receiver, and a light shielding part is provided on at least one of the upper sides of the filter.

Further, the light-shielding portion is an adhesive member, and is disposed between a visible light-shielding filter and an infrared transmission filter.

In a light-receiving portion structure for receiving a signal from a wireless remote controller using infrared light, a visible light shielding filter and an infrared transmission filter are stacked and arranged in front of the light receiver, and at least one of the filters has a predetermined direction. A selective light transmitting member that transmits only light rays from

In a light-receiving portion structure for receiving a signal from a wireless remote controller using infrared rays, the outer surface of the light-receiving portion housing body for housing the light-receiving portion and the exposed surface of the visible light shielding filter are flush with each other. A visible light shielding filter and an infrared transmission filter are stacked and arranged in front of the light receiver, and at least one of the filters is provided with a selective light transmission member that transmits only light from a predetermined direction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The light-receiving portion structure of the present invention is a light-receiving portion structure for receiving a signal from a wireless remote controller using infrared rays. , The visible light shielding filter 2 and the infrared transmitting filter 3 are stacked and arranged in front of the light receiver 4, and a light shielding portion is provided above at least one of the filters 2 and 3. 7
Is provided.

The light-shielding portion 7 is an adhesive member and is disposed between the visible light-shielding filter 2 and the infrared transmission filter 3.

Also, in the light receiving portion structure for receiving a signal from a wireless remote controller using infrared rays, the outer surface of the light receiving portion housing body 5 for housing the light receiving portion 1 and the exposed surface of the visible light shielding filter 2 are flush with each other. And a selective light transmitting member that transmits only a light beam from a predetermined direction to at least one of the filters 2 and 3 while laminating the visible light shielding filter 2 and the infrared transmitting filter 3 and disposing the filter in front of the light receiver 4. 8 is provided.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. In addition, the same reference numerals are given to the same and corresponding parts as those in the embodiment, and the detailed description thereof will be omitted.

In this embodiment, the outer surface of a light receiving unit housing 5 which is a device such as an air conditioner for housing the light receiving unit 1 of a wireless remote controller using infrared rays and the exposed surface of the visible light shielding filter 2 are flush with each other. And visible light shielding filter 2
Are attached to the light receiving unit housing 5. Then, the visible light shielding filter 2 and the infrared transmission filter 3 that transmits only infrared light are laminated, and are disposed in front of the light receiver 4 provided in the light receiver housing 5. Further, a black adhesive member serving as a light shielding portion 7 is disposed above the visible light shielding filter 2 and the infrared transmitting filter 3. The infrared transmitting filter 3 is attached to the visible light shielding filter 2 by this adhesive member. In addition, a wall 2a provided on the back surface of the visible light shielding film 2 so as to surround four sides of the infrared transmission filter 3 is provided with a light receiver 4 arranged near the back surface of the visible light shielding filter 2 in order to widen a receiving range. It is provided so as not to be affected by static electricity entering between the visible light shielding film 2 and the light receiving unit housing 5.

With such a configuration, the visible light shielding filter 2 is attached to the light receiving unit housing 5 so that the outer surface of the light receiving unit housing 5 and the exposed surface of the visible light shielding filter 2 are flush with each other. The light receiving unit 1 used in the device also transmits only light having a wavelength longer than the infrared light from the range A in FIG. 1 and blocks light from the range B in FIG. Signal from a wireless remote controller using infrared rays can be reliably received without being affected by the signal. Further, by using the light shielding portion 7 as an adhesive member, the infrared ray transmitting filter 3
Can also be used as a member for attaching, and cost can be reduced.

The visible light shielding filter 2 provided with the wall 2a is commonly used for a portion requiring measures against static electricity for cost reduction. In the present embodiment, the influence of the lighting equipment can be reduced only by providing the light shielding portion 7 without changing the shape of the visible light shielding filter 2. In addition,
As long as the light receiving unit 1 is not affected by static electricity, the light shielding unit 7 may be provided in the visible light shielding filter 2 having no wall 2a as in the conventional example.

In this embodiment, the outer surface of the light receiving unit housing 5 and the exposed surface of the visible light shielding filter 2 are both flat, but are not limited to flat surfaces and may be curved surfaces. Further, in the present embodiment, the visible light shielding filter 2 is attached to the light receiving unit housing 5 so that the outer surface of the light receiving unit housing 5 and the exposed surface of the visible light shielding filter 2 are flush with each other. In the present invention, the visible light shielding filter 2 is attached to the light receiving unit housing 5 such that the exposed surface of the visible light shielding filter 2 is located inside the outer surface of the light receiving unit housing 5 as in the conventional example. May be applied. The influence of the lighting equipment can be further reduced by providing the cylindrical body 6 of the conventional example.

Further, in this embodiment, the light-shielding portion 7 is made of a black adhesive member, and the visible light-shielding filter 2 and the infrared transmission filter 3 are also bonded and fixed. However, the present invention is not limited to this embodiment. Alternatively, the light shielding portion 7 may be formed by printing with dark ink such as black. Further, the portion where the light shielding portion 7 is provided is not limited to the above-described embodiment, and may be provided on the surface of the infrared transmission filter 3 facing the light receiver 4, that is, on the back surface.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same and corresponding parts as those in the conventional example and the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, a visible light shielding filter 2 and an infrared transmitting filter 3 are stacked and arranged in front of a light receiver 4. A predetermined direction (FIG. 2) is set between the visible light shielding filter 2 and the infrared transmitting filter 3 as in the first embodiment.
(A direction in the middle) is provided with a selective light transmitting member 8 that transmits only light rays. This selective light transmitting member 8
As shown in FIG. 3, a plate-like body 10 made of fine black silicon rubber is arranged in parallel at a predetermined angle in a transparent silicon rubber 9. The angle of incidence of the light beam is limited by the angle of the silicon rubber plate-like body 10.

With such a configuration, similarly to the first embodiment, the outer surface of the light receiving unit housing 5 and the visible light shielding filter 2
The light-receiving unit 1 used in a device in which the visible light shielding filter 2 is attached to the light-receiving unit housing 5 also transmits only light having a wavelength longer than infrared light so that the exposed surface of Thus, a signal from a wireless remote controller using infrared rays can be reliably received without being affected by the lighting equipment or the like.

In this embodiment, the outer surface of the light receiving unit housing 5 and the exposed surface of the visible light shielding filter 2 are both flat, but are not limited to flat surfaces and may be curved surfaces. Further, in the present embodiment, the visible light shielding filter 2 is attached to the light receiving unit housing 5 so that the outer surface of the light receiving unit housing 5 and the exposed surface of the visible light shielding filter 2 are flush with each other. In the present invention, the visible light shielding filter 2 is attached to the light receiving unit housing 5 such that the exposed surface of the visible light shielding filter 2 is located inside the outer surface of the light receiving unit housing 5 as in the conventional example. May be applied. In addition, even if the cylindrical body 6 of the conventional example is provided, the influence of the lighting fixture can be further reduced.

In this embodiment, the selective light transmitting member 8 is used.
Is provided on the entire surface between the visible light shielding filter 2 and the infrared transmitting filter 3, but need not be provided on the entire surface. A member provided with the member 8 may be used.
Further, the portion where the selective light transmitting member 8 is provided is not limited to the above embodiment, but may be provided on the surface of the infrared transmitting filter 3 facing the light receiver 4, that is, on the back surface.

[0023]

As described above, according to the present invention, it is possible to reliably receive a signal from a wireless remote controller using infrared rays without giving a sense of incongruity to the appearance of the light receiving unit and without being affected by lighting equipment.

In addition, since the light-shielding portion is formed of an adhesive member, the visible-light-shielding filter can also serve as a member for attaching the infrared-transmitting filter, so that the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention.

FIG. 2 is a sectional view of a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a selective light transmitting member used in the embodiment.

FIG. 4 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light-receiving part 2 Visible light shielding filter 3 Infrared transmission filter 4 Light-receiving device 5 Light-receiving part housing 6 Tubular body 7 Light-shielding part (black adhesive member) 8 Selective light-transmitting member

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI H04B 10/22

Claims (5)

[Claims] 1. A light receiving portion structure for receiving a signal from a wireless remote controller using infrared light, wherein a visible light shielding filter and an infrared light transmitting filter are stacked and disposed in front of a light receiver, and at least one of the filters is provided above the filter. A light receiving unit structure comprising a light shielding unit. 2. A light-receiving portion structure for receiving a signal from a wireless remote controller using infrared rays, wherein an outer surface of a light-receiving portion housing body for housing the light-receiving portion and an exposed surface of the visible light shielding filter are flush with each other. A light-receiving part structure, wherein a visible light-shielding filter and an infrared transmission filter are stacked and arranged in front of the light-receiving device, and a light-shielding part is provided on at least one of the filters. 3. The light-receiving part structure according to claim 1, wherein said light-shielding part is an adhesive member, and is disposed between a visible light-shielding filter and an infrared transmission filter. 4. A light receiving portion structure for receiving a signal from a wireless remote controller using infrared light, wherein a visible light shielding filter and an infrared light transmitting filter are stacked and arranged in front of the light receiver, and at least one of the filters has a predetermined direction. A light-transmitting member provided with a selective light transmitting member that transmits only light rays from the light source. 5. A light-receiving portion structure for receiving a signal from a wireless remote controller using infrared rays, wherein an outer surface of a light-receiving portion housing body for housing the light-receiving portion and an exposed surface of the visible light shielding filter are flush with each other. A visible light blocking filter and an infrared transmitting filter are stacked and disposed in front of the light receiver, and at least one of the filters is provided with a selective light transmitting member that transmits only light from a predetermined direction. Light receiving unit structure.