JP4737928B2 - Flat-type simple floodlight - Google Patents

Description

This invention relates to a flat planar simple floodlight, in particular, it relates to a flat plane type simple projector you extensively illuminated inspection location disaster site and generally in the dark.

  In disaster sites such as earthquakes and collapse accidents, it is necessary to quickly search and rescue survivors, and in particular at night, a projector that illuminates the disaster site extensively is required. Also, when a disaster occurs in a dark place such as a basement, or when checking a dark place in the consumer field, a projector for lighting is required in the same way.

A conventional projector is described in JP-A-7-153304 (Patent Document 1). The purpose of this projector is to be able to easily adjust the angle of the projector in a high place or a narrow place, and to finely adjust the angle of the horizontal plane and the angle of the vertical plane. When such a projector is used at a disaster site, it is difficult to secure a normal commercial power supply, and thus power is supplied to the projector from a generator driven by a gasoline engine.
JP 7-153304 A (paragraph numbers 0008, 0009, FIG. 1)

  Since the projector described in Patent Document 1 illuminates a distant place at one point, it cannot illuminate a wide range. For example, the entire building cannot be illuminated by a single projector. For this reason, it is necessary to arrange a plurality of projectors in parallel. In addition, the conventional projector is intended to illuminate far away, and the vicinity of the hand cannot be illuminated at the same time. For this reason, it is necessary to prepare a flashlight for illuminating the hand.

  In addition, since the conventional projector is illuminated with a light source such as a single light bulb, if the light source is cut off, the projector is no longer used as a projector, which may hinder the rescue operation at the disaster site. For this reason, it is necessary to constantly prepare a spare light source by predicting that the light source has run out, but it is difficult to replace the light source in a confused place such as a disaster site.

  Furthermore, rescue operations are often carried out while listening to the voices of survivors at the disaster site, and the quietness of the surroundings is required. ing. In addition, in an underground mall or the like, exhaust gas is filled, so a generator using a gasoline engine cannot be used.

Another object of the present invention is to provide a flat surface type simple floodlight hand even Ru can be illuminated at a certain brightness it is possible to illuminate the front of the distant in a wide range.

The present invention is a flat simple projector that illuminates one side and the other side.

Planar simple projector includes a front side, and the light emitting body unit for irradiating a planar light to the proximal side, is disposed so as to cover the front side surface of the light emitting body unit, it is emitted to the front side from the light emitting body unit A diffusion sheet that uniformly diffuses the diffused light, a lens sheet that is disposed so as to cover the front side surface of the diffusion sheet, and that enhances the brightness of the diffused light and has directivity on the front side; are arranged so as to cover the surface of the proximal part of the light from the light emitting body unit leaks proximally, include a reflective sheet capable of changing the size itself or shape itself, it is reflected to the front side by the reflection sheet The ratio of the size itself or the shape itself is set so that the amount of light to be emitted is larger than the amount of light leaking from the reflection sheet to the hand side.

Preferably, the luminous body unit has a cold cathode ray tube, one side, the other side, and a side surface connecting the one side and the other side, and the light incident from the cold cathode ray tube is applied to the side side on one side and A light guide plate guided to the other side.

Preferably, the light emitter unit includes a plurality of light sources that emit light in a planar manner on one side and the other side.

Preferably , a plurality of the planar simple projectors are arranged so that each is oriented in the same direction .

Preferably , a plurality of the planar simple projectors are arranged so as to face different directions .

  FIG. 1 is a cutaway perspective view of a main part of a light emitter unit included in the present invention, and FIG. 2 is an exploded perspective view of the light emitter unit shown in FIG.

  In FIG. 1, the luminous body unit 1 is configured in a planar type, and includes a cold cathode ray tube 2, a reflection plate 3, a light guide plate 4, and a frame 5. Further, as shown in FIG. 2, the light emitter unit 1 has a lens sheet 41 and a diffusion sheet 42 arranged on one side (front side) of the light guide plate 4, and on the other side (back side) of the light guide plate 4. A reflection sheet 43 is arranged. The light guide plate 4 includes reflective dots that reflect light incident therein by 90 degrees.

A cold cathode ray tube 2 formed in a U-shape so as to face the upper side surface, the left side surface, and the lower side surface of the four surfaces of the light guide plate 4 is disposed. The cold cathode ray tube 2 is covered with a reflector 3 having a U-shaped cross section. The light emitted from the cold cathode ray tube 2 is guided to the light guide plate 4 and reflected by the reflection dots in the light guide plate 4. The light reflected to the front side is diffused by the diffusion sheet 42 so as to become uniform light, and further the light directivity is given by the lens sheet 41 to improve the front luminance and irradiate forward. On the other hand, a part of the light reflected on the back side leaks to the back side by the reflection sheet 43, and most of the light is reflected forward through the light guide plate 4.

  If the reflective sheet 43 has the same size as the other surface of the light guide plate 4, the amount of light excluding the light leakage from the cold cathode ray tube 2 can be reflected forward. Further, by changing the size of the reflection sheet 43, generally 95 to 50% of the light amount from the cold cathode tube 2 is irradiated forward, and generally 5 to 50% of light is irradiated to the back side. Can be controlled. Furthermore, if a diffusion sheet and a lens sheet are arranged instead of the reflection sheet 43 shown in FIG. 1, a light emitter unit capable of irradiating the same amount of light on both the front side and the back side can be configured. Further, a slit or a hole may be formed in the reflection sheet 43 so that light is irradiated to the back side. That is, the amount of light irradiated on the back side can be arbitrarily controlled by changing the shape or shape of the reflection sheet 43.

  The frame 5 is divided into a front frame 51 and a rear frame 52. The front frame 51 is formed with a rectangular opening for irradiating light, and the rear frame 52 receives light leaked from the reflection sheet 43 at hand. A rectangular opening is formed so as to illuminate. The lens sheet 41, the diffusion sheet 42, the light guide plate 4, the reflection sheet 43, the cathode ray tube 2, and the reflection plate 3 are accommodated between the front frame 51 and the rear frame 52.

  FIG. 3 is a diagram showing a state where illumination is performed by the light emitter unit included in the present invention. In the luminous body unit 1, the light from the cold cathode ray tube 2 is converted into planar light by the light guide plate 4, and most of the light is emitted to the front side. At this time, a slight amount of leakage light is also applied to the back side of the light emitter unit 1, so that the hand of the person operating the light emitter unit 1 can be illuminated at the same time.

  FIG. 4 is a view showing a planar simple projector using the light emitter unit in one embodiment of the present invention. In FIG. 4, in this embodiment, three light emitter units 1a, 1b, 1c are coupled by a planar fastener or the like, and are arranged so as to have a predetermined angle on the plane, thereby constituting the projector 10. Each light emitter unit 1a, 1b, 1c is configured in the same manner as the light emitter unit 1 shown in FIG. In this embodiment, the light emitter units 1a, 1b, and 1c can illuminate a wider area in the horizontal direction.

  FIG. 5 is a diagram showing a planar simple projector according to another embodiment of the present invention. In this embodiment, a total of six light emitter units 11 to 16, three in the vertical direction and two in the horizontal direction, are arranged to constitute the projector 20, and the periphery thereof is surrounded by a frame 21. These light emitter units 11 to 16 are configured in the same manner as the light emitter unit 1 shown in FIG.

  In this embodiment, for example, when the 3 W cold cathode ray tube 2 is turned on, the six light projectors 11 to 16 can obtain a horizontal plane illuminance distribution as shown in FIG. be able to. As a result, buildings such as condominiums can be illuminated, so that they can be practically used in disaster areas.

  Moreover, in this embodiment, since the six light emitter units 11 to 16 are arranged in a plane, even if the cold cathode ray tube 2 of any one of the light emitter units is cut, the irradiated light is somewhat weakened. However, the function as the projector 20 is not lost.

  FIG. 7 is an external view showing a planar simple projector according to still another embodiment of the present invention. In the embodiment shown in FIG. 7 (a), the three light emitter units 1a to 1c are arranged so as to face in directions different from each other by 90 degrees so that the front, side, and upper sides can be illuminated simultaneously. Is. In the embodiment shown in FIG. 7B, four light emitter units 1a to 1d are arranged on four sides, and illumination in all directions is possible by suspending the apexes.

  FIG. 8 is a schematic view showing another example of the light emitter unit included in the present invention. The light emitter unit 1 shown in FIG. 1 uses the cold cathode ray tube 2 as a light source, whereas the light emitter unit 30 shown in FIG. 8 uses a light source such as an incandescent lamp. It is.

  That is, in the luminous body unit 30 shown in FIG. 8A, a plurality of incandescent bulbs 31 having relatively large wattages are arranged so as to face the front side, and light from these incandescent bulbs 31 is planarized. A reflection plate 33 for reflecting light as light to the front side is provided on the front side in the frame 35. On the back side of the frame 35, a plurality of incandescent bulbs 32 with relatively small wattages are arranged so as to face the back side. Further, in order to reflect the light of these incandescent bulbs 32 to the back side, a reflecting plate 34 is provided to face the back side.

  The illuminant unit 30 configured as described above is configured so that the incandescent light bulb 31 emits strong light as planar light on the front side and the incandescent light bulb 32 irradiates weak light on the back side. Similarly, the front side can be illuminated with plane light, and the back side can be illuminated with weak light. Further, if this light emitter unit 30 is arranged in a plurality of planes in the same manner as the projector 20 of the embodiment shown in FIG. 5, it is possible to illuminate a wider area. Furthermore, since the luminous body unit 30 has a plurality of incandescent lamps 31 and 32 arranged, the function as the luminous body unit 30 is not lost even if one of them is cut off.

  The light emitter unit 30 shown in FIG. 8A has a plurality of incandescent bulbs 32 arranged on the back side to illuminate the hand, whereas the light emitter unit 36 shown in FIG. Is configured such that a slit 37 is formed in the reflectors 33 and 34 without providing the incandescent bulb 32 on the back side so that a part of the light reflected on the front side leaks to the back side. Instead of the slit 37, a hole may be formed so that light leaks. Further, an optical fiber may be inserted into the formed hole to guide light to the back side.

  FIG. 9 is a configuration diagram of a fuel cell device for supplying power to the flat simple projector according to the present invention. In FIG. 9A, a reformer 62 that supplies hydrogen to the fuel cell 61 is built in the fuel cell main body 60, and a fuel tank 63 is provided outside the fuel cell main body 60. The fuel tank 63 stores propane gas, methane gas, and the like. The reformer 62 generates hydrogen by a reforming reaction such as propane gas stored in the fuel tank 63, and the fuel cell 61 generates power by hydrogen and oxygen by an electrochemical reaction.

  The fuel cell device shown in FIG. 9 (a) has no problem when used outdoors because exhaust gas is emitted from the reformer 62, but when used in a basement, the exhaust gas fills the basement. There is a risk. Therefore, as shown in FIG. 9B, a high-pressure hydrogen tank or hydrogen storage alloy tank 65 in which hydrogen is stored in advance is provided in the fuel cell main body 64, and hydrogen is supplied from the high-pressure hydrogen tank or hydrogen storage alloy tank 65. Is supplied to the fuel cell main body 64 and the hydrogen and oxygen in the air are generated by an electrochemical reaction, no exhaust gas is generated.

  As described above, by using the fuel cell main body 64 that directly supplies the hydrogen gas without using the reformer 62, no noise is generated at a disaster site or the like, and no harmful exhaust gas is discharged. It can be fully used at disaster sites in basements and underground shopping streets.

  The light emitter unit 1 shown in FIG. 1 and the light emitter unit 30 or 36 shown in FIG. 8 may be combined to form a projector. Furthermore, in addition to the luminous body unit 1 shown in FIG. 1, you may combine the luminous body unit which consists of an incandescent lamp which has directionality. In that case, planar light and directional light can be irradiated simultaneously.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The present invention uses a fuel cell as a power source, irradiates light in front, and also illuminates the hand, so that it can be used at a disaster recovery site at night in a disaster prevention organization such as a fire department or in a dark place in the private sector. It can be used for inspection.

It is an external appearance perspective view which shows an example of the light-emitting body unit contained in this invention. It is a disassembled perspective view of the flat type simple light projector shown in FIG. It is a figure which shows a mode that it illuminates with the light-emitting body unit contained in this invention. It is a figure which shows the flat type simple light projector in one Embodiment of this invention. It is a figure which shows the planar simple projector in other embodiment of this invention. It is a figure which shows the horizontal surface illuminance distribution of the flat type simple light projector shown in FIG. It is an external view which shows the planar type simple light projector in further another embodiment of this invention. It is a schematic diagram which shows the other example of the light-emitting body unit contained in this invention. It is an external appearance perspective view of the fuel cell which supplies electric power to the flat type simple light projector of this invention.

Explanation of symbols

  1, 1a to 1d, 11 to 16 Light emitter unit 10, 20, 30, 36 Projector, 2 Cold cathode ray tube, 3, 33, 34 Reflector plate, 4 Light guide plate, 9 Wall surface, 5, 21, 35 Frame, 31 , 32 Incandescent bulb, 37 Slit, 41 Lens sheet, 42 Diffusion sheet, 43 Reflective sheet, 51 Front frame, 52 Rear frame, 60, 64 Fuel cell main body, 61 Fuel cell, 62 Reformer, 63 Fuel tank, 65 High pressure Hydrogen tank or hydrogen storage alloy tank.

Claims (5)

A flat-type simple floodlight that illuminates a wide area in front and the hand ,
A light emitting unit that emits planar light to the front side and the hand side;
A diffusion sheet that is disposed so as to cover the front surface of the light emitter unit, and uniformly diffuses the light emitted from the light emitter unit to the front side; and
A lens sheet that is arranged so as to cover the front side surface of the diffusion sheet, and that improves the brightness of the diffused light and has directivity on the front side;
It is arranged so as to cover the surface on the hand side of the light emitter unit, a part of light from the light emitter unit leaks to the hand side, and includes a reflective sheet that can change the size itself or the shape itself,
A flat type simple projector that sets the size itself or the ratio of the shape itself so that the amount of light reflected to the front side by the reflection sheet is larger than the amount of light leaking from the reflection sheet to the hand side. The light emitter unit is:
A cold cathode ray tube;
And one side, and the other surface, wherein and a side surface connecting the one side and the other surface, said cold said the incident light from the cathode ray tube front side or the light conducting plate for guiding the proximal to the side The flat type simple light projector according to claim 1, comprising: The planar light projector according to claim 1, wherein the light emitter unit includes a plurality of light sources that emit light planarly on the front side and the hand side.   The planar simple projector according to any one of claims 1 to 3, wherein a plurality of the planar simple projectors are arranged so as to face each other in the same direction. The planar simple projector according to any one of claims 1 to 3, wherein a plurality of the planar projectors are arranged so as to face different directions.

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