Automatic focusing apparatus with detection only when the lens i

Details Automatic focusing apparatus with detection only when the lens i Automatic focusing apparatus with detection only when the lens i

1981-11-13

1983-11-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250204, 354 25, G01S 136

Patent

active

044144695

ABSTRACT:
Automatic focusing apparatus includes a charge store type photo-sensor. Due to the use of the photo-sensor, the apparatus has an improved response to a substantial charge of an interval of control outputs by change in a time sequence of the control outputs and also has an improved response to a change in a time sequence of servo outputs and a substantial change in an interval of the servo outputs.

REFERENCES:
patent: 4264810 (1981-04-01), Utagawa et al.

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