JP2001325805A - Stand-type lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stand-type lighting fixture facilitating a minuturization and light-weight for making storage and carrying easy and preventing from lighting unnecessary part. SOLUTION: This stand-type lighting fixture is comprised of a fixture main body 1, having two pieces of rectangular plate shaped light source support plates 2, 2 made of a material having shielding property pivotally jointed via a hinge 3 at one edge, surface luminous parts 4, 4 comprised of thin plate shaped EL elements arranged, such that luminous surface face opposite the sides of respective light source support plates 2. The fixture body 1 can be made to stand by itself on a placing surface such as a top plate of a desk, by adjusting opening angles between two pieces of light source support plates 2, 2 for making the light source support plates 2, 2 crossing at designated angles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stand-type lighting device.

[0002]

2. Description of the Related Art Heretofore, a stand-type lighting apparatus using a light source such as a fluorescent lamp or an incandescent lamp has been provided. As shown in FIGS. 4 and 5, such a stand-type lighting device is provided with a lamp socket 23 at a tip of an arm 21 having a base connected to a base 20, and the base of the incandescent lamp 22 is provided by the lamp socket 23. The incandescent lamp 2 is held at the tip of the arm 21 so as to cover the incandescent lamp 22.
4 is attached.

Here, in the stand-type lighting device shown in FIG. 4, light to be irradiated is combined with the direct light from the incandescent lamp 22 and the light reflected by the inner surface of the reflector 24, so that the light is irradiated onto the surface to be irradiated. However, since the arm 21 is flexible and the connecting portion between the arm 21 and the reflector 24 is movable, the arm 21 is bent or the direction of the reflector 24 is changed. To change the irradiation direction of light.

In the stand-type lighting apparatus shown in FIG. 5, since the reflector 24 has a light-transmitting property, the direct light from the incandescent lamp 22, the light reflected on the inner surface of the reflector 24, Light combined with the light transmitted through the umbrella 24 is applied to the surface to be irradiated. In this stand type lighting device, the arm 21 is used.
Also, since the connection between the arm 21 and the reflector 24 is fixed, the direction of light irradiation is also fixed.

[0005]

In the stand-type lighting fixture having the above-mentioned structure, a fluorescent lamp or an incandescent lamp 22 used as a light source is used.
Has a predetermined size, and a fluorescent or incandescent lamp 2
It is necessary to increase the rigidity of the arm 21 and the base 20 to some extent in order to hold the
There is a limit in reducing the size and weight of the stand-type lighting device because, for example, heat is generated when light is emitted, and it is necessary to secure a predetermined space around the device in consideration of heat radiation. Therefore, the stand-type lighting fixture cannot be easily carried, and a wide storage space needs to be secured. Furthermore, the conventional stand-type lighting apparatus does not have a configuration for restricting the light irradiation range, so that light is irradiated not only at necessary places.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to reduce the size and weight so as to facilitate storage and carrying, and to irradiate unnecessary portions with light. It is an object of the invention of claim 2 to provide a stand-type lighting device capable of easily changing a light irradiation range in addition to the above objects. Is to do.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a plurality of flat light source supporting plates having a light-shielding property are connected to each other via a connecting portion. And a plurality of surface light-emitting portions each formed of an EL element having a thin plate shape and arranged on one surface of each light source support plate with a light-emitting surface facing the opposite side of the light source support plate. Is characterized in that a plurality of light source support plates are connected so that adjacent light source support plates intersect at a predetermined angle via a connection portion, and the plurality of light source support plates are connected to each other by a connection portion. Since the plates are connected so as to intersect at a predetermined angle and can be self-supported by the light source support plate itself, it is possible to eliminate a member that supports the instrument body, and the EL element is in the form of a thin plate, Its thickness is the external dimensions of fluorescent and incandescent lamps Since it is sufficiently small and lightweight, there is no need to increase the rigidity of the light source support plate that supports the surface light emitting portion using the EL element, and since the EL element generates less heat, a space for heat radiation is secured. Since there is no necessity, it is possible to reduce the thickness and weight of the device main body, and it is not necessary to secure a large storage space, and the device can be easily carried. Furthermore, since each light source support plate has a light shielding property, the light of the surface light emitting unit attached to each light source support plate does not transmit through each light source support plate, and the surface light emitting unit side of each light source support plate. Irradiation in the opposite direction can be prevented.

According to a second aspect of the present invention, in the first aspect of the invention, the plurality of light source support plates are substantially rectangular plates and are formed to have substantially the same size. It is characterized by comprising a movable member movably connecting the plurality of light source support plates movably by the movable member, so that by changing the intersection angle of the adjacent light source support plate via the movable member. The area where the light of the surface light-emitting unit is irradiated can be easily adjusted, and when not in use, a plurality of light source support plates are folded, so that there is no need to secure a large storage space, and it is easy to carry. Can be.

[0009]

FIG. 1 is an external perspective view of a stand-type lighting device according to the present embodiment. This stand-shaped lighting device includes a lighting device main body 1 in which one side of two rectangular light source support plates 2 formed of a material having a light-shielding property is movably connected via a hinge 3 that is a movable member. A thin plate-shaped E is disposed on the surface of each light source support plate 2 opposed to the light source support plate 2 via the hinge 3 with the light emitting surface facing the opposite side of each light source support plate 2.
The light source supporting plates 2 and 2 are made to intersect at a predetermined angle by adjusting the opening angle of the two light source supporting plates 2 and 2 and configured by the surface light emitting units 4 and 4 formed of L (electroluminescence) elements. Thereby, the instrument main body 1 can be made to stand on a mounting surface such as a tabletop of a desk. Light source support plates 2, 2
Are movably connected via a hinge 3, and the opening angle of the light source support plates 2, 2 can be changed, so that the range of light emitted from the surface light emitting units 4, 4 can be easily adjusted.
For example, the two light source support plates 2 and 2 face
By adjusting the opening angle of the light source support plates 2 and 2 and arranging the irradiation target at the point A, the irradiation target can be irradiated with the light of the surface light emitting units 4 and 4. Further, each light source support plate 2 has a light-shielding property, and the light of the surface light emitting unit 4 arranged on each light source support plate 2 is shielded by each light source support plate 2 itself. Light from the surface light emitting unit 4 can be prevented from being irradiated in the direction opposite to the light emitting unit 4 side, and by adjusting the opening angle of the light source support plates 2 and 2, light from the surface light emitting unit 4 can be emitted to a part other than a necessary place. Irradiation can be prevented.

FIG. 3 is a schematic diagram showing the structure of the surface light-emitting portion 4, in which a light-transmitting conductive film 5, a light-emitting layer 6, an insulating layer 7, a back electrode 8, and a protective layer 9 are sequentially arranged. The power supply 10 is connected to the conductive film 5 and the back electrode 8.
Are connected to each other, and a current is applied between the conductive film 5 and the back electrode 8, whereby the phosphor (not shown) dispersed in the light emitting layer 6 emits light, and the entire surface emits light uniformly.
The power supply unit 10 that supplies power to the surface light emitting unit 4 may be disposed on the surface of each light source support plate 2 on the side opposite to the surface light emitting unit 4 side, or may be disposed separately from the instrument body 4. Is also good.

As described above, the two light source support plates 2, 2 are movably connected via the hinges 3, and the light source support plates 2, 2 intersect at a predetermined angle to form the light source support plates 2, 2. , 2 itself can be made independent, so that a member for supporting the instrument body 1 can be eliminated. In addition, the surface light emitting section 4 is formed of an EL element, and the EL element has a thin plate shape, and its thickness is sufficiently smaller than the size of a fluorescent lamp or an incandescent lamp, and is lighter and generates less heat.
The entire device can be made thinner and lighter, and there is no need to secure a large storage space, and the device can be easily carried. Moreover, since the two light source support plates 2 and 2 are formed to have substantially the same size, by folding the light source support plates 2 and 2, the size of the apparatus main body 1 in the planar direction is supported by one light source. The size of the plate 2 can be reduced, the storage space of the instrument body 1 can be reduced, and the device can be easily carried.

In the present embodiment, the instrument body 1 is formed by connecting the peripheral portions of the two light source support plates 2 and 2 via the hinge 3. The apparatus main body 1 may be configured by connecting a plurality of light source support plates 2 via hinges 3 instead of limiting the number of the light source support plates.
For example, in the case of a stand-type lighting device shown in FIG.
And a surface light-emitting unit 4 made of an EL element is disposed on a surface of each light source support plate 2 opposed to each other via the hinge 3. Further, in the present embodiment, the opening angle of the adjacent light source support plates 2 is variable by connecting the peripheral portions of the light source support plates 2 and 2 via a hinge 3 so as to be movable.
Peripheries of the light source support plates 2 and 2 may be connected via a connection portion such that the opening angle of the light source support plates 2 and 2 is constant.

[0013]

As described above, the first aspect of the present invention relates to an apparatus body constituted by connecting the peripheral edges of a plurality of light source supporting plates having a light shielding property through a connecting portion, and a thin plate-shaped light source supporting plate. And a plurality of surface light-emitting portions made of EL elements disposed on one surface of each light source support plate with the light-emitting surface facing the opposite side to the light source support plate, and the connecting portion is adjacent via a connecting portion. The plurality of light source support plates are connected so that the light source support plates intersect at a predetermined angle, and the plurality of light source support plates intersect at adjacent light source support plates at a predetermined angle by a connection portion. And the light source support plate itself can be made independent, so that a member for supporting the instrument body can be eliminated, and the EL element has a thin plate shape, and its thickness dimension is a fluorescent lamp or an incandescent lamp. Lightweight enough compared to the external dimensions of the bulb Et al., There is no need to increase the rigidity of the light source supporting plate for supporting the surface-emitting portion using an EL element, also E
Since the heat generated by the L element is small, it is not necessary to secure a space for heat radiation, so that it is possible to reduce the thickness and weight of the appliance body, and it is not necessary to secure a large storage space.
Also, there is an effect that it can be easily carried. Furthermore, since each light source support plate has a light shielding property, the light of the surface light emitting unit attached to each light source support plate does not transmit through each light source support plate, and the surface light emitting unit side of each light source support plate. There is also an effect that light can be prevented from being irradiated in the opposite direction.

According to a second aspect of the present invention, in the first aspect of the present invention, the plurality of light source support plates are substantially rectangular plates and are formed in substantially the same size, and the connecting portion is provided with a plurality of light source support plates. It is characterized by comprising a movable member movably connecting the plurality of light source support plates movably by the movable member, so that by changing the intersection angle of the adjacent light source support plate via the movable member. In addition, it is possible to easily adjust the range of light emitted from the surface light-emitting unit, and to fold the plurality of light source support plates when not in use, so that the size of the appliance body in the planar direction can be reduced by one light source support plate. This has the effect that there is no need to secure a large storage space, and the device can be easily carried.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a stand-type lighting device according to an embodiment.

FIG. 2 is an external perspective view of another stand-type lighting device of the above.

FIG. 3 is a schematic configuration diagram of an EL light emitting element used in the light emitting element;

FIG. 4 is a partially broken side view of a conventional stand-type lighting device.

FIG. 5 is a partially broken side view of another conventional stand-type lighting fixture.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Light source support plate 3 Hinge 4 Surface light-emitting part

Claims (2)

[Claims] 1. An instrument body composed of a plurality of flat light source supporting plates having light-shielding properties connected by a connecting portion via a connecting portion, and a thin plate-shaped light source supporting plate on one surface of each light source supporting plate. A plurality of surface light-emitting portions each composed of an EL element arranged so that the light-emitting surface faces the light source support plate on the opposite side, and the connecting portion intersects the adjacent light source support plates at a predetermined angle via the connection portion. As described above, wherein the plurality of light source support plates are connected to each other. 2. The light source support plate according to claim 1, wherein the plurality of light source support plates have a substantially rectangular plate shape and are formed in substantially the same size, and the connecting portion comprises a movable member for movably connecting the plurality of light source support plates. The stand-type lighting device according to claim 1, wherein: