Double gauss lens for a raster input scanner

Details Double gauss lens for a raster input scanner Double gauss lens for a raster input scanner

1987-03-13

1989-09-05

Arnold, Bruce Y.

G02B 1126

Patent

active

048632511

ABSTRACT:
A double Gauss reduction lens is optimized for projecting line images from an object plane onto a photosensor array. The six elements, four-component lens has a numeral focal length of 550 mm, a field of view of 17.degree. at the numeral 550 mm overall object to image conjugate length and a magnification of 0.1102. The lens is characterized by a high modulation transfer fequency, large depth of focus and low distortion.

REFERENCES:
patent: 3489488 (1970-01-01), Hoogland
patent: 3508812 (1970-04-01), Carlough, Jr.
patent: 4123144 (1978-10-01), Mandler et al.
patent: 4318135 (1982-03-01), Allis et al.
patent: 4367493 (1983-01-01), Matteson
patent: 4377326 (1983-03-01), Kobayashi
patent: 4385325 (1983-05-01), Chen

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