Projection screen unit with projection surfaces optimized...

Details Projection screen unit with projection surfaces optimized... Projection screen unit with projection surfaces optimized...

2006-05-09

2006-05-09

Mahoney, Christopher (Department: 2851)

Optical: systems and elements

Projection screen

C359S446000, C359S461000

Reexamination Certificate

active

07042640

ABSTRACT:
A projection screen unit includes a first projection surface optimized for a predetermined range of ambient conditions and a second projection surface optimized for a second, different range of ambient conditions.

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