Single prism aberration compensation

Details Single prism aberration compensation Single prism aberration compensation

2007-11-30

2010-06-22

Spector, David N (Department: 2873)

Optical: systems and elements

Compound lens system

With tilted lens or tilted image plane

C359S833000, C359S292000

Reexamination Certificate

active

07742229

ABSTRACT:
System and method for utilizing two prisms spatially separated is provided. The two prisms spatially separated allows the two prisms typically found in a TIR optical relay system to be spatially separated. In an embodiment, one or more optical relay lenses are interposed between the two prisms. The prism positioned on the object side may be integrated into one or more of the optical relay lenses, thereby further simplifying the optical relay design. In another embodiment, the one or more optical relay lenses may have an optical axis that is offset from the optical axis of incoming light to cause a pupil shift. An aspherical lens may be included to correct for the pupil shift and create a more uniform illumination image.

REFERENCES:
patent: 6666557 (2003-12-01), Choi
patent: 6726332 (2004-04-01), Cannon et al.
patent: 6760168 (2004-07-01), Lee
patent: 6831762 (2004-12-01), Schuck et al.
patent: 6908197 (2005-06-01), Penn
patent: 7080908 (2006-07-01), Liao et al.
Pan, J.-W., et al., “Portable digital micromirror device projector using a prism,” Applied Optics, August 1, 2007, vol. 46, No. 22, pp. 5097-5102, 2007 Optical Society of America.

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