Title:
INTERCHANGEABLE LENS WITH SOLAR BATTERY
Document Type and Number:
Japanese Patent JP2003330087
Kind Code:
A
Abstract:
To provide an interchangeable lens with a solar battery and a secondary battery and to selectively drive a lens-side actuator with large electric power by detecting the voltages of the both.
The interchangeable lens is provided with the solar battery, the secondary battery, and a means of detecting the voltages of the both and further comprises the actuator which drives various functions of the lens, its driving circuit, and a microcomputer which controls it.
Inventors:
SUZUKI RYOICHI
Application Number:
JP2002135595A
Publication Date:
November 19, 2003
Filing Date:
May 10, 2002
Export Citation:
Assignee:
CANON KK
International Classes:
G03B7/26; G02B7/02; G02B7/04; G02B7/08; G03B17/14; H01L31/04; H01M10/48; H02J7/35; (IPC1-7): G03B17/14; G02B7/02; G02B7/04; G02B7/08; G03B7/26; H01L31/04; H01M10/48; H02J7/35
Attorney, Agent or Firm:
Keizo Nishiyama (1 person outside)
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