Title:
【発明の名称】レンズ着脱式カメラ装置
Document Type and Number:
Japanese Patent JP3082951
Kind Code:
B2
Abstract:
PURPOSE:To prevent destruction and malfunction owing to the wraparound of a current and to improve safety and reliability by setting the circuit of an output part on a side having a power source to be an open type. CONSTITUTION:Since the contact point of a video camera unit-side is an open collector and it is separated from a power line even if contact occurs when a lens unit it detached, the flow-out and wraparound of the current from the video camera unit-side to a lens unit-side do not occur and a danger that the adverse influence of destruction and malfunction is given to the semiconductor element of IC or the like on the lens unit-side is eliminated.
Inventors:
Toshiaki Mabuchi
Application Number:
JP1100591A
Publication Date:
September 04, 2000
Filing Date:
January 31, 1991
Export Citation:
Assignee:
Canon Inc
International Classes:
G05B11/01; G03B17/14; H04N5/225; (IPC1-7): H04N5/225; G03B17/14
Domestic Patent References:
| JP2135983A |
Attorney, Agent or Firm:
Keizo Nishiyama (2 outside)