Title:
IMPLEMENT FOR MEASURING ECCENTRICITY OF LENS, AND INSTRUMENT AND METHOD FOR MEASURING ECCENTRICITY OF LENS USING THE SAME
Document Type and Number:
Japanese Patent JP2005221471
Kind Code:
A
Abstract:
To precisely measure an eccentric amount of a lens using as an outer circumferential edge of a lens part set as a reference.
The lens part set 4 for holding the lens 2 in a mirror frame 3 is mounted on a mounting table 11 of a lens eccentricity measuring implement 10, the lens part set 4 is rotated while pressing onto respective reference support columns 13, 14 by a roller 17, the lens 2 of the lens part set 4 is irradiated with measuring light, under the rotation, and the eccentric amount of the lens 2 to the mirror frame 3 of the lens part set 4 is calculated in an eccentricity calculation part 61, based on an image data acquired by imaging return light from a surface of the lens 2 therein by a CCD camera 58.
Inventors:
YOKOI DAISUKE
Application Number:
JP2004032014A
Publication Date:
August 18, 2005
Filing Date:
February 09, 2004
Export Citation:
Assignee:
OLYMPUS CORP
International Classes:
G01M11/00; (IPC1-7): G01M11/00
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Sadao Muramatsu
Tetsuya Kazama
Satoshi Kono
Sadao Muramatsu
Tetsuya Kazama