Light projection apparatus
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United States of America Patent
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-
Aug 4, 1992
Grant Date -
N/A
app pub date -
Feb 27, 1991
filing date -
Feb 27, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A high efficiency light projection apparatus using lasers that optimize all available power output from two lasers to provide a balanced color display is disclosed. The light projection apparatus comprises two laser and light separation means to produce separate red, green and blue light beam components. A combiner cube is provided for combining the blue light beam component of one of the lasers with the blue light beam component of the other laser. Also provided is a second combiner cube for combining a portion of one of the lasers green light beam component with the other lasers green light beam component which combined components are transmitted to a dye laser to provide a red light beam component. Additionally, a light projection apparatus is disclosed that provides convenient access by the operator and presents an overall narrower configuration for the projector for transportation, installation and alignment purposes.
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