Image intensifier attachment for attachment to the front lens of

Details Image intensifier attachment for attachment to the front lens of Image intensifier attachment for attachment to the front lens of

1979-06-29

1981-03-03

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

250213R, H04N 530

Patent

active

042544378

ABSTRACT:
In order to increase the sensitivity of television cameras so as to allow the cameras to operate in low level light, an image transformer attachment, in the form of an ancillary image intensifier, is provided for attachment to the objective lens opening of the camera. The attachment includes a cylindrical housing containing one or more proximity-focus image converters or intensifiers which are optically connected to the pick-up tube of the camera by a fiber optics cylindrical block. The housing includes an annular disk screwed into its input end, which disk has an opening for the objective lens of the camera and which disk urges a resilient ring against the image transformers to bias the intensifier and fiber optics block against the pick-up tube of the camera. At its output end, the camera has another annular disc with a threaded projection thereon, which projection is received in the threaded opening normally holding the objective lens of the camera to retain the attachment housing in fixed relation with respect to the camera while the first disk is screwed into the housing.

REFERENCES:
patent: 3553363 (1971-01-01), Anderson
patent: 3737667 (1973-06-01), Babb
patent: 3752983 (1973-08-01), Yanez
patent: 3790785 (1974-02-01), Paolini
patent: 3813489 (1974-05-01), Ramsey
patent: 3974331 (1976-08-01), Pepin
patent: 4067045 (1978-01-01), Provost

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