| 摘要 |
A projection-type display device 1 including a light source 10 , an optical integrator 20 , dichroic mirrors 30 and 35 , a reflecting mirror 36 , a relay optical system 40 , parallelizing lenses 50 B, 50 G and 50 R, liquid crystal light valves 60 B, 60 G and 60 R, incident side lenses 70 B, 70 G and 70 R, a light-synthesizing cross dichroic prism 80 , a relay lens 90 , an emergent side lens 95 , a liquid crystal light valve 100 and a projection lens 110 , and liquid crystal light valve 100 is provided in the rear stage of liquid crystal light valves 60 B, 60 G and 60 R.
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