Title:
FRESNEL OPTICAL ELEMENT, DISPLAY SCREEN AND, PROJECTION TYPE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/011218
Kind Code:
A1
Abstract:
The surface (13) of a substrate (3) has a function of reflecting a light beam reflected by a reflective surface (12) of a Fresnel optical element, and a transmission surface (14) allowing a light beam reflected by the surface (13) of the substrate (3) to pass through it is formed between the Fresnel prisms. Consequently, a light beam can be projected to the viewer side even if it is obliquely irradiated.
Inventors:
ENDO TAKAO (JP)
SUZUKI HIROSHI (JP)
MIYATA AKIHISA (JP)
TERAMOTO KOHEI (JP)
SHIKAMA SHINSUKE (JP)
SUZUKI HIROSHI (JP)
MIYATA AKIHISA (JP)
TERAMOTO KOHEI (JP)
SHIKAMA SHINSUKE (JP)
Application Number:
PCT/JP2004/010850
Publication Date:
February 02, 2006
Filing Date:
July 29, 2004
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
ENDO TAKAO (JP)
SUZUKI HIROSHI (JP)
MIYATA AKIHISA (JP)
TERAMOTO KOHEI (JP)
SHIKAMA SHINSUKE (JP)
ENDO TAKAO (JP)
SUZUKI HIROSHI (JP)
MIYATA AKIHISA (JP)
TERAMOTO KOHEI (JP)
SHIKAMA SHINSUKE (JP)
International Classes:
G02B3/08; G03B21/60; G03B21/602; (IPC1-7): G03B21/60; G02B3/08
Foreign References:
| JP2004177427A | 2004-06-24 | |||
| JP2004078024A | 2004-03-11 | |||
| JP2000347297A | 2000-12-15 | |||
| JP2002023271A | 2002-01-23 | |||
| JP2002019385A | 2002-01-23 | |||
| JP2000206620A | 2000-07-28 | |||
| JPH11338056A | 1999-12-10 | |||
| JPH06282009A | 1994-10-07 | |||
| JPS5463825A | 1979-05-23 | |||
| JPS56108128U | 1981-08-22 | |||
| JPH032742A | 1991-01-09 |
Attorney, Agent or Firm:
Tazawa, Hiroaki (7-1 Kasumigaseki 3-chom, Chiyoda-ku Tokyo 13, JP)
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