Title:
光学ユニットおよび投写型表示装置
Document Type and Number:
Japanese Patent JP4953149
Kind Code:
B2
Abstract:
Provided is an optical unit that includes: light source (1a); light source (1b) located to face light source (1a); color wheel (2) located between light sources (1a and 1b); prism unit (3a) that totally reflects light emitted from light source (1a) and that is transmitted through color wheel (2), and transmits light emitted from light source (1b) to enter color wheel (2); and prism unit (3b) that totally reflects the light emitted from light source (1b) and that is transmitted through color wheel (2), and transmits the light emitted from light source (1a) to enter color wheel (2).
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Inventors:
Naofumi Ishizura
Application Number:
JP2011519361A
Publication Date:
June 13, 2012
Filing Date:
June 18, 2009
Export Citation:
Assignee:
NEC Display Solutions Co., Ltd.
International Classes:
G03B21/14; G02B5/20; G02B19/00; G02B27/09; G03B21/00
Domestic Patent References:
| JP2005115094A | ||||
| JP2007293033A | ||||
| JP2007310331A | ||||
| JP2007140344A | ||||
| JP2006030330A |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata