JPS58188001A - Orientation varying type lighting apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to an improvement in lighting equipped with a straight tube light source.
In particular, the present invention relates to a structure that can quickly obtain a desired light distribution even though it requires a complicated structure.

Conventional lighting devices equipped with straight tube fluorescent lamps generally have a reflector on the main body of the lighting device, sockets are fixed near both ends of the main body of the lighting device, and a fluorescent lamp is installed between the sockets. A lamp is attached.

However, according to this structure, since the reflector is fixed to the lighting fixture body, the lighting characteristics are limited and there is a drawback that it is not possible to obtain multiple types of light distribution with one N4 bright device.

Also, conventionally, for example, in a lighting device that illuminates a wall surface, ti
A structure has been implemented in which a socket for mounting a light source is fixed on both sides of the lighting fixture body, and a reflecting mirror is rotatably supported with respect to the lighting fixture body.

For example, as a structure for rotating the reflecting mirror with respect to the lighting equipment body (as shown in Fig. 1, there is a -
A reflection-hanging body 2 having a regular scale is provided, a reflection mirror 3 is mounted and supported on the reflection mirror-hanging body 2, and a reflection film 3 is applied within the range of the arcuate hole 4 formed in the @ wall of the reflection mirror 3. It is configured to rotate.

However, lighting devices with the same structure have limited illumination characteristics depending on the shape of the reflective film, and the illumination direction can only be varied, making them suitable for wall lighting but having the disadvantage that they cannot be used widely for other purposes.

An object of the present invention is to provide an illumination device which has a structure in which the shape of a reflector plate can be arbitrarily varied and can obtain illumination characteristics of many ms with a single device.

The present invention will be explained below with reference to FIGS. 2 to 4.

In Figures 2 and 3, the main body of the l1ilt lighting fixture is integrally constructed, and arc-shaped holes 14 and 15 are formed in the heavy rain side end plate 12 and 13. Reference numeral 16 denotes a support rod disposed across the arc-shaped holes 14 and 15, and is configured to move along the arc-shaped groove. 17ij Socket mounting plates arranged below both sides of support rod 16, 18.1
9H socket Socket installed in 411 of mounting plate 17, 20 is socket on both sides of lighting equipment main body 110) 18.19
For example, it is a straight tube type fluorescent lamp mounted between the support rod 16 and configured to move together with the support rod 16.

2] A push screw for establishing the Fi support 16 and sockets 18 and 19 at any location. 22.23 is end plate 1
2, 13 to identify the ends of the reflector on both sides;
Nine support rods are installed, 24 is support rod 16 and support rod 22123
This is a variable reflector plate that is disposed across a resin film, and is constructed by depositing an aluminum reflective film on the surface of a resin film. For example, a polyester film is used as the cutting film.

Next V (operation Vζ when arbitrarily setting the light distribution in the above structure) will be explained.

the above? 4! By loosening the push screw 21, the support rod 16Q and the support rod 16 can be removed.
(The shape of the reflector plate 24 changes, and by further tightening the push screw 2) the reflection &2
By specifying the shape of 4, it is possible to obtain a desired light distribution.

For example, when the support rod 16 is at point A in Figure 2, the light distribution is as shown in Figure 4 aK), and the irradiation range to the left of the center is wide, and at point B, as shown in Figure 4 bK, the area near the center of the beam is illuminated. is,
At the position of point C, as shown in FIG. 4 cVC, the right direction is widely irradiated.

As mentioned above, this product #j# has one lighting fixture on both sides,
An end plate having an arc-shaped hole is arranged, and a support rod that moves along the same arc shape #14 is arranged between the arc holes of one end plate, and the lower part of the support bar and the steel plate are arranged. A variable reflector was placed at the bottom of the support rod, and a light source was placed at the lower end of the support rod.By moving the support rod along the arcuate hole, the Its shape changes, and it has great utility because it allows you to easily obtain multiple types of light distribution with a single lighting device.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the rotation mechanism of the reflector in a conventional illuminator 5w, FIG. 2 is a side view of the illumination device according to the present invention, and FIG. 3 is a perspective view of the illumination device of FIG. FIG. 4 is a light distribution diagram that can be obtained by the illumination device according to the present invention. 11...Lighting equipment main body, 14.15--Circular hole,
16...Support rod, 24...Reflector No. 31 Fig. 4

Claims (1)

[Claims] 1. An end plate having an arc-shaped hole 0◆ and an arc-shaped hole 0◆ is disposed on both sides of the lighting fixture body αυ, and both end plates (2
), between the arcuate holes QiI of (6) and (c), a support rod 0→ movable along the arcuate hole α◆,)k is arranged, and A variable light distribution lighting fixture characterized by having a variable reflector disposed over both lower axes of &α and ρ4, and further disposing a light source along the lower end of the support rod. 2. In the scope of the claims set forth in item 1, the usable reflector (c) is a light distribution opening characterized by having an aluminum reflective film provided on the surface of a resin film. ■Modified lighting equipment.