JPH04487Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a lighting fixture that can freely change the color tone of irradiated light.

[Background technology]

As the light emitted from lighting equipment for illuminating desk surfaces, it is generally preferable to use cool blue tones rather than the warm tones of normal incandescent light, so currently, blue-tinted lighting is preferred. Lighting equipment that emits a certain amount of light is widely used. The blue light from these lighting fixtures is
This was achieved by using a blue light bulb as a light source, or by painting the inner surface of a reflector plate blue.

However, in the conventional lighting equipment that emits colored light such as blue, the irradiated light remains limited to one color, and the color tone cannot be adjusted. Therefore, it was inappropriate for viewing colored pictures, photographs, diagrams, etc. Furthermore, when trying to change the mood, it would be convenient if the color tone of the irradiated light could be changed.

[Purpose of invention]

This idea was made in view of the above circumstances,
The purpose of the present invention is to provide a lighting fixture that can freely change the color of light irradiated onto a desk surface.

[Disclosure of invention]

The lighting device according to this invention has a movable reflector that is movable in the direction of the central axis of the lamp, which is placed inside a fixed reflector that surrounds the lamp and surrounds the lamp. The fixed reflecting plate and the movable reflecting plate have reflective surfaces of different colors, and as the movable reflecting plate moves, the light from the lamp is reflected by one or both of the reflecting plates. It's summery.

Below, based on the embodiment shown in the drawings,
This will be explained more specifically.

The illustrated lighting fixture 1 has a main body 3 by fixing its mounting piece 3a to the tip of the support arm 2.
is supported, and a vertically long mini halogen lamp 6 is installed in the socket 5 installed inside the main body 3.
is now ready to be installed. A bowl-shaped fixed reflector 9 having a lamp hole 7 in the center is integrally attached to the front surface of the main body 3 and is arranged to surround the lamp 6. The fixed reflector 9 has
A plurality of slits 10 are provided on concentric circles. On the other hand, the movable reflecting plate 12 has a bowl-like shape with a hollow bottom, and the same number of leaf springs 13 as the slits 10 are attached to the peripheral edge of the bottom. The movable reflector 12 connects the leaf springs 13, 13, . . . with slits 1 provided at corresponding positions on the fixed reflector 9.
0, 10, ..., respectively, and insert the plate springs 13,
13, . . . are supported inside the fixed reflecting plate 9 by elastically engaging them with the fixed reflecting plate 9. By adjusting the engagement position of the leaf spring 13 with the slit 10, the supporting position of the movable reflecting plate 12 can be freely changed in the axial direction of the lamp 6. Note that a stopper 14 is provided at the tip of the leaf spring 13 to prevent it from falling off. The back surfaces of the main body 3 and the fixed reflector 9 are covered with a hemispherical shade 16.

Further, in the illustrated lighting fixture 1, the inner surface 9a of the fixed reflector 9 is coated with white paint, and the movable reflector 12 is coated with white paint.
The inner surface 12a of is coated with blue paint. Inner surfaces 9 of these fixed reflectors 9 and movable reflectors 12
Since a and 12a are reflective surfaces for the irradiated light, they are preferably formed into smooth mirror surfaces.

When this lighting fixture 1 is used with the movable reflector 12 pulled up as shown in FIG. Since it is reflected by the surface 12a and illuminates the downward direction, the irradiated light becomes blue light with the color tone of the reflective surface 12a. next,
When used with the movable reflector 12 lowered as shown in FIG. and illuminates the lower part through the gap between the fixed reflector 9 and the movable reflector 12.
Since the reflective surface 9a of the fixed reflector 9 is white, the irradiated light at this time is the normal light of the lamp. Furthermore, by adjusting the vertical position of the movable reflector 12, the irradiated light from the lamp 6 can be distributed and reflected between the fixed reflector 9 and the movable reflector 12, and by changing the ratio, the light can be You can subtly change the color tone.

This lighting fixture 1 can freely change the color tone of the irradiated light as described above, but structurally it requires only one lamp and requires a complicated moving device to move the moving reflector 12 up and down. etc., and therefore it can be provided at low cost.

Note that each of the reflective surfaces 9a and 12a of the fixed reflective plate 9 and the movable reflective plate 12 may be colored other than the illustrated example. Irradiation light having an arbitrary color tone can be obtained depending on the color of each reflective surface 9a, 12a.

[Effect of idea]

As is clear from the above description, the lighting device according to this invention has a simple structure and is excellent in that the color tone of the irradiated light can be easily changed.

[Brief explanation of drawings]

FIG. 1 is a side cross-sectional view of one example of the lighting fixture according to this invention, and FIGS. 2a and 2b are explanatory diagrams showing states when blue light is irradiated and when normal light is irradiated. 1...Lighting equipment, 3...Main body, 5...Socket, 6...Lamp, 6a...Light source, 9...Fixed reflector, 9a...Reflection surface, 12...Moveable reflector, 1
2a... Reflective surface, 13... Leaf spring, 16... Shade.

Claims (1)

[Scope of utility model registration request] A movable reflector that is movable in the direction of the central axis of the lamp is provided inside the fixed reflector, which is provided so as to surround the lamp with the lamp at the center. A lighting fixture in which the reflective surfaces of the plate and the movable reflector have different color planes, and the light from the lamp is reflected by one or both of the reflectors by moving the movable reflector.