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Patent Searching and Data


Title:
REAR PROJECTION SCREEN
Document Type and Number:
WIPO Patent Application WO/1998/032049
Kind Code:
A1
Abstract:
A rear projection screen on which a sharp picture with no graininess can be displayed with good contrast and good fidelity of reproduction of gloss. The rear projection screen (10) has a lenticular lens sheet (11) on which lenticular lenses (11a) which have optical functions such as light condensation, light diffusion are formed. A transparent smooth layer (12) whose surface is smoothed so that the surface roughness may be 0$g(m)m $m(F) Ra $m(F) 0.40 $g(m)m on the light outputting side of the lenticular lens sheet (11).

Inventors:
MIYATA HIDEKI (JP)
Application Number:
PCT/JP1998/000193
Publication Date:
July 23, 1998
Filing Date:
January 20, 1998
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
MIYATA HIDEKI (JP)
International Classes:
G03B21/62; G03B21/625; (IPC1-7): G03B21/62
Foreign References:
JPH06160982A1994-06-07
JPH05265095A1993-10-15
JPH05289176A1993-11-05
JPH06266009A1994-09-22
JPH08258051A1996-10-08
JPH08320407A1996-12-03
Other References:
See also references of EP 0895118A4
Attorney, Agent or Firm:
Sato, Kazuo (Fuji Building Room 323, 2-3, Marunouchi 3-chom, Chiyoda-Ku Tokyo 100, JP)
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