Light modulator system including relay optics for correcting optical distortions

摘要

A relay lens system is provided. The relay lens system comprises: an air-spaced doublet comprising: a biconvex lens and a negative meniscus lens, an optical axis of the air-spaced doublet offset between the biconvex lens and the negative meniscus lens, each of the biconvex lens, the negative meniscus lens, an air space there between and an offset of the optical axis there between are selected to adjust the coma in an image travelling there through; and, a pair of cylindrical lenses, cylindrical with a relay optical path through the system, each of the pair of cylindrical lenses, and a respective air space there between, selected to adjust the astigmatism in the image.

主权项

1. A system comprising:
a first light modulator, a second light modulator, and relay optics there between, each of the first light modulator and the second light modulator at an off-normal angle to a relay optical path through the relay optics such that some portions of an image, formed by the first light modulator, are relayed through the relay optics to the second light modulator, at different path respective path lengths than other portions of the image, thereby introducing coma and astigmatism into the image, the relay optics comprising:
an air-spaced doublet comprising: a biconvex lens and a negative meniscus lens, an optical axis of the air-spaced doublet offset between the biconvex lens and the negative meniscus lens, each of the biconvex lens, the negative meniscus lens, an air space there between and an offset of the optical axis there between are selected to adjust the coma in the image; and,a pair of cylindrical lenses, cylindrical with the relay optical path, each of the pair of cylindrical lenses, and a respective air space there between, selected to adjust the astigmatism in the image.