JPS59144966U

JPS59144966U - lighting equipment

Info

Publication number: JPS59144966U
Application number: JP3840483U
Authority: JP
Inventors: 加納　光成
Original assignee: 株式会社日立製作所
Priority date: 1983-03-18
Filing date: 1983-03-18
Publication date: 1984-09-27

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 the drawing]

第１図は本考案の照明装置の適用対象の１例を示す図、
第２図はヘアライン拡散板２の動作原理を説明するため
の図、第３図はヘアライン拡散板の外観図、第４図はヘ
アライン拡散板の動作原理図、第５図はヘアライン拡散
板の他の応用例を示す図である。１・・・光源、２・・・ヘアライン拡散板、３・・・検
出物体、′４・・・センサ　視野、５・・・レンズ、６
・・・センサ、７・・・表示板。FIG. 1 is a diagram showing an example of the application target of the lighting device of the present invention,
Fig. 2 is a diagram for explaining the operating principle of the hairline diffuser plate 2, Fig. 3 is an external view of the hairline diffuser plate, Fig. 4 is an illustration of the operating principle of the hairline diffuser plate, and Fig. 5 is a diagram for explaining the operating principle of the hairline diffuser plate. FIG. DESCRIPTION OF SYMBOLS 1...Light source, 2...Hairline diffuser, 3...Detection object,'4...Sensor visual field, 5...Lens, 6
...Sensor, 7...Display board.

Claims

[Scope of utility model registration request]

An illumination device characterized in that a diffuser plate having a plurality of notches in a direction orthogonal to the longitudinal direction of the field of view is disposed on the surface of a transparent plate between a light source and a field of view.