JPS61193492U

JPS61193492U -

Info

Publication number: JPS61193492U
Application number: JP7777285U
Authority: JP
Priority date: 1985-05-27
Filing date: 1985-05-27
Publication date: 1986-12-02

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例の照光装置の概略
を示す斜視図である。第２図は従来の照光装置の
概略を示す斜視図である。第３図ａ，ｂは第２図
の構成例における透明板内の光路を示す図で、第
３図ａは部分平面図、第３図ｂは部分側面図であ
る。第４図ａ，ｂは第１図の実施例における透明
板内の光路を示す図で、第４図ａは部分平面図、
第４図ｂは部分側面図である。第５図は他の実施
例の照光装置の概略を示す斜視図である。２：ランプ、３：線、４：文字、５，６：透明
板、Ａ：入射面、Ｂ：照光面、Ｃ：上面、Ｄ，Ｅ
：側面、Ｆ：下面。 FIG. 1 is a perspective view schematically showing an illumination device according to an embodiment of this invention. FIG. 2 is a perspective view schematically showing a conventional illumination device. FIGS. 3a and 3b are diagrams showing the optical path within the transparent plate in the configuration example of FIG. 2, with FIG. 3a being a partial plan view and FIG. 3b being a partial side view. 4a and 4b are diagrams showing the optical path inside the transparent plate in the embodiment of FIG. 1, and FIG. 4a is a partial plan view;
FIG. 4b is a partial side view. FIG. 5 is a perspective view schematically showing a lighting device according to another embodiment. 2: Lamp, 3: Line, 4: Character, 5, 6: Transparent plate, A: Incident surface, B: Illumination surface, C: Top surface, D, E
: Side, F: Bottom.

Claims

[Claims for Utility Model Registration] Point light source 2 and light incident surface A from the point light source 2
and a transparent material 5 having illumination surfaces B and C for incident light.
In the illumination device that guides the light from the point light source 2 through the transparent material 5 and performs illumination, the incident surface A is formed as a lens surface that makes the light from the point light source 2 parallel, and the point An illumination device characterized in that a light source 2 is placed at the focal point of the lens surface.