Optical low pass filter

Details Optical low pass filter Optical low pass filter

1997-02-05

1999-03-30

Sugarman, Scott J.

Optical: systems and elements

Lens

Including a nonspherical surface

359566, 359652, 359668, G02B 1318, G02B 2744, G02B 1308

Patent

active

058896210

ABSTRACT:
An optical low pass filter having an optical axis common to an imaging optical system or configured as a portion of an imaging optical system for contribution to formation of an image, functioning to image components in a longitudinal direction of the image pickup device onto a desired imaging location and having refractive powers, for components in different directions, which are different from that for the components in the longitudinal direction. This optical low pass filter is suited for use with line sensors.

REFERENCES:
patent: 5450243 (1995-09-01), Nishioka
patent: 5463496 (1995-10-01), Ise
patent: 5471344 (1995-11-01), Sugawara

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