Focusing system

Details Focusing system Focusing system

1981-07-28

1983-09-06

Gellner, Michael L.

354 25, 354 31, G03B 310

Patent

active

044025866

ABSTRACT:
There is provided a focusing system having an autofocusing device. In the focusing system, the range for manual focusing is set beyond the range for autofocusing within which automatic focus adjustment with the autofocusing device operates. The focusing system includes means for operating the autofocusing device to operate automatic focusing of an optical system to be focus adjusted irrespective of the adjusted position of the optical system within the range of manual focusing. Thus, when autofocusing start means is operated, it is possible to automatically adjust the focus of said optical system within the range of autofocusing by the autofocusing device no matter what position the optical system has been taken within the manual focusing range.

REFERENCES:
patent: 4160590 (1979-07-01), Reynard

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