JPS6326481B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in louvered fluorescent lighting fixtures, and particularly to a structure that can prevent glare and supplement light in dark areas.

[Prior art and its problems]

Conventionally, in a fluorescent lighting device equipped with a long fluorescent lamp, a reflector plate 2 is supported on the lighting device main body 1 as shown in FIG. 3 in order to prevent glare. A light source 4 is attached to a socket 3 fixed to a socket 3, and a louver 5 is provided below the light source 4.

However, according to the same structure, glare can be prevented within a certain angle range, but since there is a vertical louver 6,
Directly below the light source 4 and the vertical louver 6 where the light source 4 is not located
There is a drawback that the illuminance between the two is uneven, causing brightness and darkness.

[Purpose of the invention]

The present invention was invented in view of the above points, and is a fluorescent lamp with louvers that can effectively prevent glare, reduce the difference in illumination between vertical louvers, and produce special lighting effects. The purpose is to provide lighting equipment.

The invention will now be described with reference to FIGS. 1 and 2. In the figure, reference numeral 11 denotes a long fluorescent lamp body, 12 a socket provided at both ends of the fluorescent lamp body 11, and 13 a fluorescent lamp body 11.
14 is a long fluorescent lamp attached to the socket 12; 15 is a box-shaped frame provided on the outer periphery of the lower surface of the fluorescent lamp lighting device body 11; 16 is a ballast fixed to the lamp;
1 is a louver support body which is engaged with a protrusion in the lower central part of the lighting fixture body 11 and fixed with a support bolt, and has a large number of louver retaining holes 17 formed at equal intervals. 18 is a louver retaining hole 17 of the louver support 16
The horizontal louver 19 fitted and supported by the horizontal louver 19 is a vertical louver comprising a large number of transparent windows 20 spaced apart at predetermined intervals, and is engaged with the horizontal louver 18 at equal intervals. The engagement between the vertical louver 19 and the horizontal louver 18 is achieved by providing a vertical notch 21 in the engagement portion of both louvers. Further, the light-transmitting window 20 of the vertical louver 19 has, for example, circular holes arranged at equal intervals, as shown in FIG. Note that the light-transmitting window 20 may be configured to have a triangular, quadrangular, pentagonal, etc. shape.

Further, the vertical louver 19 and the horizontal louver 18 are arranged with a slight gap 22 between them and the fluorescent lamp 14.

[Action of the invention]

When the fluorescent lamp 14 in the above structure is turned on, direct light from the fluorescent lamp 14 is transmitted to each vertical louver 1.
9 and the horizontal louver 18, and a part of the projected light passes through the transparent window 20 of each vertical louver 19, directly below the light source, and the vertical louver 1 where the light source is not located.
The illuminance between 9 and 9 is relatively averaged.

Although a portion of the projected light passes through the light-transmitting window 20 of the vertical louver 19, the projected light passing through the light-transmitting window 20 does not cause any glare and produces a special illumination effect.

〔Effect of the invention〕

As described above, the present invention includes a horizontal louver and a plurality of vertical louvers having a large number of light-transmitting windows arranged at predetermined intervals with a slight gap between them and the lower end of an elongated fluorescent lamp. As a result, the direct light from the fluorescent lamp is projected from above each vertical louver and horizontal louver, and part of the projected light passes through the transparent window of each vertical louver, and the louvers in areas where the light source is not located. It has the advantage of being able to compensate for the illuminance between the vertical louvers, prevent glare, reduce the difference in illuminance between the louvers, and obtain special illumination effects using the translucent windows of the vertical louvers.

[Brief explanation of the drawing]

FIG. 1 is a side view of a fluorescent lighting fixture with a louver according to the present invention, FIG. 2 is a perspective view of the louver in FIG. 1, and FIG. 3 is a side view of a conventional fluorescent lighting fixture with a louver. . 11...Fluorescent lighting fixture body, 18...Horizontal louver, 19...Vertical louver.

Claims (1)

[Claims] 1. A long fluorescent lamp 14 is attached to a lighting equipment main body 11 having a box-shaped frame 15 provided on the outer periphery of the lower surface, and a louver is supported at the lower end of the fluorescent lamp 14. In this structure, a vertical louver has a slight gap 22 between it and the lower end of the fluorescent lamp 14, supports a plurality of horizontal louvers 18, and has a large number of transparent windows 20 relative to the horizontal louver 18. 19, and the projection light from the fluorescent lamp 14 is projected through the gap 22 and the transparent window 20 of the vertical louver 19.