Variable focus color corrected field lens

Details Variable focus color corrected field lens Variable focus color corrected field lens

1995-06-07

1996-06-25

Sikes, William L.

Optical: systems and elements

Lens

With variable magnification

359721, 359739, 359789, G02B 1514, G02B 310, G02B 900, G02B 914

Patent

active

055305954

ABSTRACT:
A variable focus color corrected field lens for accepting rays having a divergence of from 0, wherein the rays are collimated, to a divergence of 10 milliradians full angle and directing the rays to the same point of an optical system. The present lens is corrected for wavelengths from the ultraviolet to the red spectrum of wavelengths for directing the wavelengths to the same point.

REFERENCES:
patent: 1347673 (1920-07-01), Bishop
patent: 5087990 (1992-02-01), Maruyama
patent: 5210646 (1993-05-01), Mercado et al.

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