Title:
アナモフィックコンバーター及びレンズ装置
Document Type and Number:
Japanese Patent JP4447953
Kind Code:
B2
Abstract:
To obtain a rear converter type anamorphic converter capable of flange-back focus length adjustment.
The anamorphic converter has at least one anamorphic lens, arranged on an image side of an imaging optical system and comprises a fixed 1st group, a 2nd group including the anamorphic lens, and a 3rd group with positive refractive power, in this order from the imaging optical system side, with a portion or the whole of the 3rd group being made movable in the optical axis direction.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Ryuji painter
Application Number:
JP2004116800A
Publication Date:
April 07, 2010
Filing Date:
April 12, 2004
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B13/12; G02B15/10; G02B13/18; G02B13/22; G02B15/167
Domestic Patent References:
| JP643362A | ||||
| JP2154215A | ||||
| JP200485603A | ||||
| JP200478103A |
Attorney, Agent or Firm:
Keizo Nishiyama
Yuichi Uchio
Yuichi Uchio