Camera apparatus having an optical low-pass filter

Details Camera apparatus having an optical low-pass filter Camera apparatus having an optical low-pass filter

1992-03-24

1996-10-22

Garber, Wendy

Television

Camera, system and detail

Optics

348360, H04N 5225

Patent

active

055681972

ABSTRACT:
A camera apparatus having photographing lenses and an optical low-pass filter for limiting the image information of predetermined spatial frequency components, the filter being disposed at an arbitrary position on the optical axis of the photographing lenses. One of the sides of the optical low-pass filter is formed as a diffraction grating structure having a low pass effect, and the other side is formed in an aspherical shape.

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patent: 5161040 (1992-11-01), Yokoyama et al.
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