JPH10106323A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily prevent deterioration of a sensor sensitivity at the time of shade installation without degrading design property by installing an infrared ray-transmissive opening and closing member in an open hole of a reflecting plate on the opposite to an infrared sensor installed in the luminaire main body. SOLUTION: A mountain-shape reflecting plate 30i installed in a box type luminaire main body having an open part in a lower part and a linear tubular fluorescent lamp 11 is install in the installation space 32 through a lamp socket 10. Further, an infrared sensor 40 is installed on the opposite to an aperture hole 3t formed 10 the center reflecting plate 35 having a reversely triangular shape to detect the existence of a human being to turn on and oft and modulate the light. in such a luminaire, an opening and closing member 45 which slides back and forth us installed in the longitudinal direction of the back side of a center reflecting plate 35. The opening and closing member 45 is made of an infrared ray transmissive material and the member 45 is moved and opens the aperture hole 37 in the case a shade 20 is installed in the open part and closes the aperture hole in the case no shade is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an office, a conference room,
Turn on lamps in office corridors to save energy
The present invention relates to a lighting device having a function of automatically performing / OFF and dimming of a lamp by an infrared sensor.

[0002]

2. Description of the Related Art Conventionally, in a lighting fixture with a sensor, a sensor unit and a fixture main body are separately provided as shown in FIG. 8 and a sensor is provided on the back side of a reflecting plate as shown in FIG. And an integrated type integrally disposed with the instrument body.

With reference to FIG. 8, a description will be given of a lighting fixture with a separately mounted sensor.

The apparatus main body 1 has a box-shaped main body case 2 opened downward, and a reflecting plate 5 having a mountain-shaped reflecting plate 6 disposed in the main body case 2 and projecting downward in a mountain shape along the center in the longitudinal direction. And a lamp socket 10 mounted in parallel at both ends in the longitudinal direction in the main body case 2.

[0005] Between the lamp sockets 10, straight tube fluorescent lamps 11, 11 (hereinafter referred to as "lamp") are mounted, respectively, and these lamps 11 are ballasts (shown in FIG. ) Is connected to the power supply.

The sensor unit 15 is adjacent to the instrument main body 1 and is integrally attached to the main body case 2. The sensor unit 15 has a box-shaped unit case 16 opened downward and a It comprises a plate-shaped cover portion 17 attached to the opening, and a resin lens 18 protruding downward is mounted at the center of the cover portion 17, and the resin lens 18 has a back surface not shown on the rear side. Infrared sensors are arranged facing each other.

When the shade 20 is mounted on a separately mounted lighting fixture, the shade 20 is attached to the fixture main body 1 only at the opening of the fixture main body 1 by being locked to the fixture main body 1 by a mounting spring 23.

The shade 20 has a flat plate-like shape made of a transparent material such as acrylic resin and has the same shape as the lower opening of the instrument body 1, and a shade frame attached to the periphery of the shade plate 21. 22, and a pair of mounting springs 23, 23 that are mounted above the shade frame 22 so as to face each other.
It is composed of

Referring to FIG. 9, a lighting device with an integral sensor will be described.

The luminaire body 1 of the integrated luminaire has the same structure as that of the separately mounted luminaire, and an infrared sensor (not shown) is arranged on the back side of the reflection plate 5 to be integrated with the luminaire body. An opening 8 is formed so as to straddle a ridge line 7 of a mountain-shaped reflecting plate 6 projecting in a mountain shape, and a resin lens 18 is mounted to project from the opening 8.

On the back side of the resin lens 18, an infrared sensor (not shown) is attached to the instrument body 1.

The infrared sensor has a function similar to that of a separately-installed or integrated illuminating device with a sensor. The infrared sensor is connected to the lamp and operates when a person is detected. The infrared sensor is a detector that detects a person who stops operating, and the infrared sensor is used in connection with a blinker or a dimmer.

When the infrared sensor is used in connection with a flasher, when the infrared sensor detects a person, the flasher is turned on and the lamp is turned on. When no one is present, the infrared sensor turns off the blinker and the lamp goes off.

When the infrared sensor is used in connection with a dimmer, the infrared sensor detects a person and activates the dimmer to brighten the lamp. When no one is present, the dimmer is activated and the lamp becomes dark.

Further, at the lower opening of the instrument body 1, a mounting spring 2 having a shade 20 mounted on the shade is provided.
3 is used to lock and attach to the instrument body 1.

Further, an infrared ray passing hole 24 is formed in the shade plate 21 so as to face the resin lens 18 attached to the instrument body 1. The shade plate is made of a light-transmitting material through which light passes, such as an acrylic resin.

[0017]

As described above, in the case of a separately mounted lighting device in which the sensor unit and the device main body are separated, the size of the lighting device increases, which causes an increase in cost.
Furthermore, since a separate sensor unit is provided adjacent to the instrument body, the design is inferior. In addition, there are various problems that it is difficult to standardize a lighting fixture without shade.

In a lighting fixture with a built-in sensor, when a shade is attached to the fixture body, an infrared sensor, a resin lens, and a shade plate are provided, and the sensitivity of the sensor is extremely reduced.
The sensor may not work.

In order to prevent this, an infrared ray through hole is formed in the shade plate facing the resin lens, so that there is a problem that the design is inferior.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a lighting fixture which does not reduce the sensitivity of a sensor even when a shade is attached to the fixture body, and a lighting fixture which can be easily standardized. And

[0021]

According to a first aspect of the present invention, there is provided a lighting device according to the first aspect, wherein the lighting device is provided with a reflector body attached thereto and an opening hole provided in the reflector plate. A lighting fixture comprising an infrared sensor disposed in the fixture body, for turning on / off and dimming a lamp attached to the fixture body by the infrared sensor, wherein a shade is attached to the fixture body in the opening hole. An opening / closing member made of an infrared transmitting material for opening the opening when the opening is opened is provided.

According to a second aspect of the present invention, in the lighting fixture, a prism is provided on a back surface of the opening / closing member.

According to a third aspect of the present invention, in the lighting device, a prism is provided on a back surface of a shade mounted on the device main body facing the infrared sensor.

[0024] In the structure of the first aspect, an infrared sensor is disposed in the instrument body facing the opening provided in the reflection plate, and the opening is made of an infrared transmitting material which opens and closes the opening. In the configuration in which the opening / closing member is provided and the shade is mounted, the sensitivity of the infrared sensor does not decrease because the opening / closing member is opened.
Further, in the case where the shade is not attached, the opening / closing member is closed and the opening provided in the reflection plate is covered with the opening / closing member, so that the design is not spoiled.

According to the second aspect of the present invention, since the prism is provided on the back surface of the opening / closing member, the infrared light can be diffused by the prism of the opening / closing member to widen the detection range when the shade is not attached. .

According to the third aspect of the present invention, since a prism is provided on the back surface of the shade facing the infrared sensor, in the case where the shade is mounted, it is possible to diffuse the infrared light by the prism of the shade to widen the detection range. it can.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same components as in the prior art will be described with the same reference numerals.

FIG. 1 is a side sectional view of a lighting device in which an infrared sensor is built in a device main body. There are two types of the lighting device, one with a shade and one without a shade.

The lighting fixture has a box-shaped fixture body 1 having an opening below, and a reflector 30 is fixed to the fixture body 1 in the fixture body 1 by a method not shown.

The reflecting plate 30 has flat surfaces 31 formed at upper portions on both sides in the width direction, and is bent downward from both ends of the flat surface 31 in a substantially C-shape, and is opened downward on both sides along the longitudinal direction. Lamp mounting space 32, 32 consisting of a substantially trapezoidal space
Are formed in parallel.

Further, an inverted triangular space 33 opened upward along the longitudinal direction is provided at the center of the reflection plate 30 in the width direction.
An inverted triangular central reflector 35 protruding downward is formed.

Lamp sockets 10 and 10 are mounted on the main body 1 so as to face both ends of the lamp mounting space 32,
The lamp 11 is mounted between the pair of lamp sockets 10, 10.

As shown in FIG. 2, an opening 37 through which an infrared ray (not shown) passes is formed below the central reflecting plate 35 along a ridge 36 of the central reflecting plate 35, and the opening 37 is projected. An infrared sensor 40 is provided in the central reflector 35. The infrared sensor 40
The sensor body 41 and a plurality of terminals 42 are formed to project upward from the back surface of the body 41.
Lead wires 43 are connected to the ends of the lead wires 43.
Is connected to a flasher, a dimmer, and the like (not shown).

A V-shaped opening / closing member 45 that slides back and forth along the longitudinal direction of the back surface of the central reflecting plate 35 is attached so as to cover the opening 37. A receiving member 50 having an L-shaped slide receiving portion 51 is welded and fixed to the central reflecting plate 35 by electric spot welding on both upper ends of the V-shaped opening / closing member 45.

A mountain-shaped prism 46 is provided on the back surface of the mountain-shaped slide opening / closing plate 45. Therefore, as shown in FIG. 3, the infrared light emitted downward from the infrared sensor
6, the light is diffused outward, and the detection range detected by the infrared sensor 40 is expanded.

[0036] In a lighting fixture that does not use shades,
As shown in FIGS. 4 and 5, a V-shaped sliding opening / closing plate 45 attached to the back surface of the central reflecting plate 35 is formed in the central reflecting plate 35 by sliding the opening / closing plate 45. The opening 37 is used in a closed state.

In the case where the shade is not mounted, the opening 37 provided in the central reflecting plate 35 is covered by the opening / closing plate 45 as an opening / closing member, so that the design is not spoiled.

In a lighting fixture to which a shade is attached, the shade 20 is attached to a mounting spring 23 attached to the shade 20.
As a result, it is locked to the instrument body 1 and attached to the lower opening of the instrument body 1.

When the shade is mounted on the main body of the apparatus, the infrared ray is attenuated by the infrared sensor 40, the opening and closing plate 45, and the shade plate 21, so that the central reflector 35 as shown in FIG.
By sliding the V-shaped slide type opening / closing plate 45 attached to the back surface of the device to open the opening 37 formed in the central reflecting plate 35, the infrared sensor 40 + the shade plate 21 is provided, and infrared rays are attenuated. Never.

Further, as shown in FIG. 7, when a mountain-shaped prism 46 is formed on the back surface of the shade plate 21 facing the infrared sensor 40 and on the periphery thereof, infrared light emitted downward from the infrared sensor main body 41 is emitted. Is a shade board 2
The light is diffused outward by the first prism 46 and the infrared sensor 40
The detection range detected by is expanded.

The shade plate 21 is made of an acrylic resin through which infrared rays can easily pass. Further, when polyethylene is used, the minimum workable material thickness of polyethylene is 0.1 mm.
By setting the thickness to about 2 mm, it is possible to improve the transmittance of infrared light and minimize the attenuation. Further, the thickness may be increased to about 0.2 mm only in the material thickness of the portion where the prism 46 is applied, and may be increased to about 2.5 mm in the other portions.

The operation of the above embodiment will be described.

First, the operation of the present invention will be described.

After the apparatus main body is mounted on, for example, a ceiling surface, which is a surface to be mounted, a reflector is mounted in the apparatus main body. At this point, it should be clear whether the apparatus is a shade-less apparatus or a shade-equipped apparatus. .

Accordingly, in the shade-free device, the resin-made lens described in the section of the prior art can be formed by closing the opening hole with a slide-type opening / closing plate fitted in a slide receiver provided on the inner surface of the reflection plate. It will be in the used state.

In the case of a device with a shade, when the opening of the reflector is closed by a slide-type opening / closing plate, the sliding-type opening / closing plate and the shade plate are superimposed, and a decrease in sensor sensitivity is expected. .

Therefore, the slide type opening / closing plate is opened so that the sensor light directly hits the inner surface of the shade, thereby preventing the sensor sensitivity from lowering.

As a result, it is possible to prevent the sensor light from being reduced in a device with and without a shade.

Furthermore, the same parts can be used in the fixture with shade and the fixture without shade, and standardization of the lighting fixture can be achieved.

The operation of the present invention according to claims 2 and 3 will be described.

According to the second aspect of the present invention, the prism is provided on the back surface of the opening / closing member, and according to the third aspect of the present invention, the prism is provided on the back surface of the shade. Thus, the reliability of the lighting fixture can be improved.

For example, when a lighting device with a sensor connected to a blinker is attached to a conference room, and when no person is present in the conference room, the infrared sensor attached to the lighting device is activated. However, the blinker connected to the infrared sensor is in the OFF state, and the lamp of the lighting fixture is in the OFF state.

Next, when a person enters the conference room, the infrared sensor detects the person and operates, and the blinker connected to the infrared sensor is turned on. As a result, the lamp of the lighting fixture is turned on. Since the infrared sensor is kept operating while the conference room is occupied, the blinker also keeps the ON state, so that the lamp of the lighting equipment keeps the lighting state.

When no one is present in the conference room, the operation of the infrared sensor is stopped, and at the same time, the blinker is turned off, and the lamp of the lighting fixture is turned off.

As described above, the infrared sensor is activated and the lamp is automatically turned on only when the person is in the conference room, and when the person leaves the conference room, the infrared sensor stops operating and the lamp is automatically turned off. Therefore, an energy-saving lighting device can be obtained.

If a luminaire with a sensor connected to a dimmer is installed in the conference room, the infrared sensor detects a person and the dimmer operates to brighten the lamp. When no one is present, the dimmer operates and the lamp becomes dark, so that an energy-saving lighting fixture can be obtained.

By using a slide type opening / closing plate provided with a prism and a shade shade plate made of polyethylene or the like having a material thickness of about 0.2 mm, the transmittance of infrared light is improved and the attenuation is minimized. Has an effect.

[0058]

As described above, according to the first aspect of the present invention, an opening / closing member made of an infrared transmitting material is provided to open the opening of the reflector when the shade is mounted on the instrument body. Therefore, it is possible to prevent the sensor light from being reduced in the lighting fixtures with and without the shade.

Further, the same parts can be used in the lighting fixture with and without the shade, so that the lighting fixture can be standardized.

Furthermore, according to the second aspect of the present invention, the prism is provided on the back surface of the opening / closing member, and according to the third aspect of the present invention, the prism is provided on the back surface of the shade. Since the lighting device can be widened, the reliability of the lighting fixture can be improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a lighting device according to a first embodiment of the present invention.

FIG. 2 is an enlarged side sectional view of part A in the embodiment.

FIG. 3 is a side cross-sectional view showing the shape of a prism provided on the back surface of the opening / closing member and the diffusion state of sensor light in the embodiment.

FIG. 4 is a bottom view showing the lighting fixture in the embodiment.

FIG. 5 is a perspective view showing that an opening of the reflector in the embodiment is closed by an opening / closing member.

FIG. 6 is a perspective view showing that the opening of the reflector in the embodiment is opened by an opening / closing member.

FIG. 7 is a side cross-sectional view showing the shape of a prism provided on the back surface of the shade plate and the state of diffusion of sensor light in the embodiment.

FIG. 8 is a perspective view showing a lighting device of the related art with a separate sensor unit.

FIG. 9 is a perspective view showing a sensor-equipped lighting device according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Instrument main body, 11 ... Straight fluorescent lamp (lamp), 20 ... Shade, 30 ... Reflection plate, 37 ... Opening hole, 45 ... Slide-type opening / closing plate (opening / closing member).

Claims (3)

[Claims] 1. An appliance main body to which a reflection plate is attached, and an infrared sensor disposed in the appliance main body so as to face an opening hole provided in the reflection plate. A lighting device for turning on / off and dimming the lamp mounted on the lighting device, wherein the opening is provided with an opening / closing member made of an infrared transmitting material that opens the opening when the shade is mounted on the device main body. Lighting equipment characterized by the above-mentioned. 2. The lighting fixture according to claim 1, wherein a prism is provided on a back surface of said opening / closing member. 3. The lighting fixture according to claim 1, wherein a prism is provided on a back surface of a shade attached to the fixture main body facing the infrared sensor.