Projection type screen and image projection system

Details Projection type screen and image projection system Projection type screen and image projection system

2006-02-27

2008-11-18

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

Unitary sheet comprising plural refracting areas

C359S459000

Reexamination Certificate

active

07453637

ABSTRACT:
A projection type screen comprises a reflection surface array and a lenticular sheet. In the reflection surface array, a plurality of reflection surfaces is located along a horizontal direction. Each reflection surface has a mirror reflectivity of which section along the horizontal direction is quadratic curve shape. The lenticular sheet is located at an incident side of a projection light for the reflection surface array. The lenticular sheet has diffusivity along a vertical direction.

REFERENCES:
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patent: 4732441 (1988-03-01), Cheng
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patent: 06-265818 (1994-09-01), None
patent: 09-189884 (1997-07-01), None
H. Kaneko, Desktop Autostereoscopic Display Using Compact LED Projectors and CDR Screen, SID 02 Digest (2002) pp. 1418-1421., May 2002.

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