US2017309741A1PendingUtilityA1

Illumination apparatus

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Assignee: SEMICONDUCTOR ENERGY LABPriority: Apr 12, 2000Filed: Jul 7, 2017Published: Oct 26, 2017
Est. expiryApr 12, 2020(expired)· nominal 20-yr term from priority
Inventors:Hajime KimuraRumo Satake
G02B 6/0038G02B 6/0055G02B 6/0031G02B 6/0046G02F 1/133615G02B 6/0028G02F 1/1336G02B 6/0043H01L 29/786H10D 30/67
60
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Claims

Abstract

A point light source is converted into a plane light source having a satisfactory uniformity. The point light source is converted into a line light source by means of a linear light guiding plate, and further into the plane light source by means of a plane-like light guiding plate. Light from the point light source is reflected at a lamp reflector to be incident on at least two side surfaces of the plane-like light guiding plate.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An illumination apparatus comprising:
 a point light source;   a light guiding plate; and   a reflecting member for reflecting a light of said point light source,   wherein said light reflected by said reflecting member is incident on at least two side surfaces of said light guiding plate.

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