Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1990-03-28
1992-04-14
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 60, 359 84, 359634, 359888, H04N 931, H04N 973
Patent
active
051052636
ABSTRACT:
A projection display apparatus projects red, green and blue light emitted from three projection tubes. Each light component passes through a projection lens. A separate color temperature corrector is detachably coupled to each projection lens. The color temperature corrector may employ neutral density filters, color dividing means, or liquid-crystal shutters.
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Groody James J.
Murrell Jeffrey S.
Pioneer Electronic Corporation
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