Projection lens system and projector
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United States of America Patent
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Feb 27, 2007
Grant Date -
Aug 10, 2006
app pub date -
Feb 6, 2006
filing date -
Feb 7, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A projection lens system that is suited to a compact, wide-angle lens system. The projection lens system projects projection light from a light modulator onto a screen, wherein the projection lens system is constructed, in order from a screen side thereof, of a first lens group with negative refractive power and a second lens group with positive refractive power and is non-telecentric on an incident side thereof, and the second lens group includes a pair of cemented doublet lenses with positive refractive power whose cemented surfaces face in opposite directions and a cemented triplet lens with positive refractive power.
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