JPS6114411U

JPS6114411U - Display lighting device

Info

Publication number: JPS6114411U
Application number: JP9896984U
Authority: JP
Inventors: 正治馬場; 良次吉池
Original assignee: 株式会社東芝
Priority date: 1984-06-30
Filing date: 1984-06-30
Publication date: 1986-01-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図ないし第４図は本考案の一実施例を示し、第１図
は分解した斜視図、第２図は断面丙、第３図は第２図中
■部を拡大した断面図、第４図は輝度分布の特性図であ
る。第５図は透光板に形成する凹溝の変形パターンを示す平
面図である。第６図ないし第８図は本考案の他の実施例を示し、第６
図は分解した斜視図、第７図は断面図、第８図は透光板
の第３図と同様な断面図である。１・・・・・・ケーシング、２・・・・・・透光板、３
，４・・・・・・凹溝、２０・・・・・・凹凸面、６・
・・・・・反射体、７・・・・・・側壁部、８・・・・
・・底壁部、１１・・・・・・光源（無口金電球）。1 to 4 show an embodiment of the present invention, in which FIG. 1 is an exploded perspective view, FIG. FIG. 4 is a characteristic diagram of brightness distribution. FIG. 5 is a plan view showing a deformed pattern of grooves formed on the transparent plate. 6 to 8 show other embodiments of the present invention;
The figure is an exploded perspective view, FIG. 7 is a sectional view, and FIG. 8 is a sectional view of the transparent plate similar to FIG. 3. 1...Casing, 2...Translucent plate, 3
, 4... Concave groove, 20... Uneven surface, 6...
...Reflector, 7...Side wall part, 8...
...Bottom wall part, 11...Light source (crystal metal bulb).

Claims

[Scope of utility model registration request]

The opening of the casing, which is open on one side, is covered with a light-diffusing light-transmitting plate, and a light source is installed inside this casing, and the light from the casing is reflected toward the light-transmitting plate. A display illuminating device provided with a reflector that makes the transparent plate have unevenness on at least one of the front and back surfaces of the transparent plate, and the density of the unevenness becomes coarser as the distance from the light source increases. .