Image projection arrangement
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United States of America Patent
Stats
-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Mar 22, 1989
filing date -
Oct 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image projection arrangement is described which comprises a light source (1) for producing a first light beam (b.sub.1), a reflective image display system (10) provided in the path of this light beam and a projection lens system (20), arranged in the path of a second light beam (b.sub.2) originating from the image display system. A beam-separating element (5) whose operating principle is based on total internal reflection of one of the beams (b.sub.1, b.sub.2) is provided in the light path between the light source and the image display system on the one hand and said system and the projection lens system on the other hand. This sresults in an adequate separation of these beams while the dimensions of the arrangement remain limited.
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International Classification(s)
Cited Art Landscape
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