Optical: systems and elements – Projection screen
Reexamination Certificate
2006-06-21
2011-11-08
Mahoney, Christopher (Department: 2862)
Optical: systems and elements
Projection screen
C359S449000, C359S596000, C359S597000
Reexamination Certificate
active
08054546
ABSTRACT:
The invention relates to glass facades to be used as media screens9, including slat reflectors30, 31, 38, 39, 60, 61, 79, 90arranged horizontally, one above the other, in front of, or behind, or between glass panes80, 81as receivers for artificial, projected, and natural light. The slat reflectors27, 30, 31, 38, 39, 60, 61, 79, 90-92receive and radiate sun62on their upper side65, 100, 101. On their white lower side30, 31, 82, 112, 123they receive projected light76, 105, 111from an exterior light source, projecting from below upwards. The projection axis is aligned at an angle γ. The slat reflectors for projected light are orientated in an angle β1and form a scale shaped media screen. At least between the projection receiving parts of the slats a distance D is created.
REFERENCES:
patent: 5293305 (1994-03-01), Koster
patent: 6337769 (2002-01-01), Lee
patent: 10-0305067 (2001-07-01), None
DLA Piper (LLP) US
Mahoney Christopher
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