Television camera for endoscopes provided with an optical low-pa

Details Television camera for endoscopes provided with an optical low-pa Television camera for endoscopes provided with an optical low-pa

1987-10-19

1989-02-14

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 55, H04N 530, H04N 5225

Patent

active

048050288

ABSTRACT:
In order to effectively eliminate moire without requiring the preparation, on hand, of various types of adapters and to make it possible to obtain an image of high resolution, a television camera is arranged that a plurality of optical low-pass filters having mutually different optical characteristics are housed within the camera body so as to place either one of these optical low-pass filters into the photographic optical path by external manual operation, or arranged that a plurality of optical low-pass filters having mutually different optical characteristics disposed on the photographic optical path are housed within the camera body so as to rotate at least one of these optical low-pass filters about the optical axis by external manual operation.

REFERENCES:
patent: 3588224 (1971-06-01), Pritchard
patent: 4178611 (1979-12-01), Okano
patent: 4245909 (1981-01-01), Loos
patent: 4439030 (1984-03-01), Ueda
patent: 4554585 (1985-11-01), Carlson
patent: 4611243 (1986-09-01), Morisawa et al.

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