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Patent Searching and Data


Title:
LENS BARRIER AND LENS BARREL
Document Type and Number:
Japanese Patent JP3348880
Kind Code:
B2
Abstract:

PURPOSE: To provide the lens barrier which enables the periphery of the opening part of the lens barrel to effectively be utilized.
CONSTITUTION: A blade storage space 125 is provided below the opening part 12a of the internal cylinder 12 of the lens barrel and blades 30 and 31 are stored while put one over the other in the direction of the lens optical axis. A storage space 123 is provided above the internal cylinder opening part 12a positioned on the opposite side to the blade storage space 125 across the lens optical axis. The slack part 5a of a flexible printed circuit board 5 which connects the control circuit 4 of a camera body and a driving device 20 in the lens barrel is stored in the storage space 123. When the lens barrel is not used, the blades 30 and 31 are drawn upward out of the blade storage space 125 and the opening part 12a of the internal cylinder 12 is closed.


Inventors:
Miyamoto, Hidenori
Obikawa, Fumito
Shiobara, Toshihide
Application Number:
JP1992000222997
Publication Date:
November 20, 2002
Filing Date:
August 21, 1992
Export Citation:
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Assignee:
NIKON CORP
NITTO KOGAKU KK
International Classes:
G02B7/10; G03B11/04; G03B17/02; (IPC1-7): G03B11/04; G02B7/10; G03B17/02
Attorney, Agent or Firm:
永井 冬紀