Title:
LIGHT SOURCE DEVICE AND PROJECTOR
Document Type and Number:
Japanese Patent JP2006337486
Kind Code:
A
Abstract:
To use many light emitting elements like LEDs advantageous in terms of power consumption and heat generation source, as a light source to take light emitted from them as projection light.
A light source device includes; a truncated pyramid-shaped light source housing 30 which has each slope formed like stairs and has a bottom face opened and has an entire inside face made of a light reflecting member; and a plurality of LEDs diodes 31, 31, ... which are arrayed on a top face of the light source housing 30 and step face parts parallel with the top face, of respective stairs-like slopes so that the LEDs have light emitting parts projecting toward the inside face directed toward the bottom face opening.
Inventors:
KUROSAKI HIDEMASA
Application Number:
JP2005159277A
Publication Date:
December 14, 2006
Filing Date:
May 31, 2005
Export Citation:
Assignee:
CASIO COMPUTER CO LTD
International Classes:
G03B21/14; G03B21/00
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
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