Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-10-03
1990-10-23
Brown, Brian W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
354 81, 358 99, 358100, G03B 3700
Patent
active
049656015
ABSTRACT:
A camera viewing unit for viewing the inside of a reaction vessel or the like is the invention disclosed. This viewing unit has a fixed lens positioned in front of the camera lens. The camera is focused by moving the fixed lens. The camera has a fused lens in front of the fixed lens; this fused lens minimizes corrosion of the unit. There are also easy alignment means to ensure a level picture is transmitted.
REFERENCES:
patent: 2744487 (1956-05-01), Moore et al.
patent: 3229851 (1967-01-01), Olsen
patent: 3837226 (1974-09-01), Kawawa
patent: 4245566 (1981-01-01), Shimansky et al.
patent: 4346404 (1982-08-01), Gantenbrink
patent: 4809862 (1989-03-01), Canty
Brown Brian W.
Ralabate James J.
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