Title:
LENS BARREL, LENS BLOCK, LENS UNIT, IMAGE READING UNIT AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2007212650
Kind Code:
A
Abstract:
To provide a lens barrel that can be stably joined and fixed to other members.
The lens barrel 7 holds at least a large-diameter lens 1 and a small-diameter lens 2. The lens barrel 7 includes: a large-diameter cylindrical part 3 for holding the large-diameter lens 1; a small-diameter cylindrical part 6 for holding the small-diameter lens 2; a connection part 5 connecting the large-diameter cylindrical part 3 and small-diameter cylindrical part 6; and a skirt part 4 extending from the large-diameter cylindrical part 3 to small-diameter cylindrical part 6 and has an outside diameter identical to that of the large-diameter cylindrical part 3.
COPYRIGHT: (C)2007,JPO&INPIT
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Inventors:
KOBAYASHI SHIGEO
Application Number:
JP2006031090A
Publication Date:
August 23, 2007
Filing Date:
February 08, 2006
Export Citation:
Assignee:
RICOH KK
International Classes:
G02B7/02; H04N1/028; H04N5/225
Domestic Patent References:
| JPS4996725A | 1974-09-12 | |||
| JPH0961689A | 1997-03-07 | |||
| JP2005037550A | 2005-02-10 |
Attorney, Agent or Firm:
Hideo Takino