Title:
FRESNEL LENS SHEET AND BACK PROJECTION SCREEN USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/135046
Kind Code:
A1
Abstract:
A Fresnel lens sheet (1) for a transmission screen, having a Fresnel lens shape on one side and fine protrusions and recesses on the other side. The fine protrusions and recesses are formed when the shape of fine surface protrusions and recesses are transferred, the fine surface protrusions and recesses being obtained when a binder (5) containing fine particles (4) having a mean particle diameter of 20 μm or less is layered on a substrate (3). The Fresnel lens sheet (1) for a transmission screen has enhanced brightness because of low loss in quantity of light, has suppressed speckle, has no moire, and has suppressed ghost.
Inventors:
TOYOHARA MAKOTO (JP)
ONO YOUJI (JP)
ONO YOUJI (JP)
Application Number:
PCT/JP2006/312127
Publication Date:
December 21, 2006
Filing Date:
June 16, 2006
Export Citation:
Assignee:
KURARAY CO (JP)
TOYOHARA MAKOTO (JP)
ONO YOUJI (JP)
TOYOHARA MAKOTO (JP)
ONO YOUJI (JP)
International Classes:
G03B21/62; G02B3/08; G02B5/02
Foreign References:
| JP2000180968A | 2000-06-30 | |||
| JP2000280267A | 2000-10-10 | |||
| JP2000193805A | 2000-07-14 | |||
| JPH02110525A | 1990-04-23 |
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