Two-stage projection system

Details Two-stage projection system Two-stage projection system

1996-03-28

1997-10-14

Dzierzynski, Paul M.

Optical: systems and elements

Compound lens system

With curved reflective imaging element

359366, 359730, 359858, 359859, G02B 1700

Patent

active

056777884

ABSTRACT:
A high efficiency, high performance full color projection system. The system includes a one-to-one relay and a refractive projection lens system. The one-to-one relay combines the outputs from two different spectral image sources, such as blue and red image sources. The refractive projection lens further combines the output from a third spectral image source, such as a green image source, with the combined images from the other two image sources relayed through the one-to-one relay to produce a single output. The one-to-one relay includes three modules, a spherical primary module, a spherical secondary module and a spectral combining module. The refractive projection lens system includes a beam combiner and a projection optics.

REFERENCES:
patent: 3620592 (1971-11-01), Freeman
patent: 4687301 (1987-08-01), Ledebuhr
patent: 4842374 (1989-06-01), Ledebuhr
patent: 4950056 (1990-08-01), Smith
patent: 5257133 (1993-10-01), Chen et al.

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