Title:
LIGHT-CONDENSING DEVICE, CONVERGING DEVICE AND LENS SHEET
Document Type and Number:
Japanese Patent JP2012189280
Kind Code:
A
Abstract:
To provide a light-condensing device for obtaining a high light-condensing efficiency.
The light-condensing device includes: a converging device which receives light from a parallel light source, and emits the light; and a light-receiving device which receives the light emitted from the converging device. The converging device includes an optical sheet 311 having a front surface 312 facing the parallel light source, and a structured surface 313 which is disposed opposite the front surface 312 so as to emit the light from the parallel light source. The structured surface 313 includes a plurality of arranged linear prisms 314.
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Inventors:
OGAWA YOICHI
Application Number:
JP2011054476A
Publication Date:
October 04, 2012
Filing Date:
March 11, 2011
Export Citation:
Assignee:
HITACHI MAXELL
International Classes:
F24S23/70; F21S11/00; F21S19/00; F21V5/02; F21V7/04; G02B3/08; G02B5/00; G02B5/04; G02B5/10; G02B19/00
Attorney, Agent or Firm:
上羽 秀敏
坂根 剛
松山 隆夫
竹添 忠
坂根 剛
松山 隆夫
竹添 忠