Interchangeable lens system

Details Interchangeable lens system Interchangeable lens system

1993-01-21

1993-10-26

Gellner, Michael L.

G03B 1700

Patent

active

052570584

ABSTRACT:
An interchangeable lens system comprising a lens unit; a camera body provided with a first electric power supplying battery; a conversion adapter for connecting the camera body with the lens unit, thereby enabling electric power supply from the battery in the camera body to the lens unit; a second electric power supplying battery connected to the conversion adapter and controllable independently from the first battery; and a control circuit for enabling electric power supply from the second battery to the lens unit only when the camera body is connected to the conversion adapter.

REFERENCES:
patent: 5068680 (1991-11-01), Kawasaki et al.

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