Image pickup apparatus having a diaphragm and a high-resolution

Details Image pickup apparatus having a diaphragm and a high-resolution Image pickup apparatus having a diaphragm and a high-resolution

1995-12-15

1998-06-09

Faile, Andrew I.

Television

Camera, system and detail

Optics

348484, H04N 5238

Patent

active

057642923

ABSTRACT:
An image pickup apparatus includes a first diaphragm having a variable numerical aperture, and a second diaphragm having a fixed numerical aperture. A light-reducing member is disposed on a moving portion of the first diaphragm. The light-reducing member can be inserted in or retracted from the optical path of the second disphragm by operating the first diaphragm when the second diaphragm is being used.

REFERENCES:
patent: 4047212 (1977-09-01), Yamada
patent: 5293542 (1994-03-01), Ise et al.
patent: 5327193 (1994-07-01), Date et al.

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