Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CAMERA FOR CALIBRATION
Document Type and Number:
Japanese Patent JP2005303520
Kind Code:
A
Abstract:

To provide a low-cost and high-workability calibrating camera available for both the geometric correction and the color correction in a constitution selectively using at least three optical filters.

The calibrating camera available for both the geometric correction and the color correction is composed of an optical lens unit 2 with a photographing lens 1 mounted therein; an optical filter unit 4 disposed in its front stage with at least three optical filters 3 mounted therein; a filter switch part 5 for selecting and placing one of the three optical filters 3 at a light measuring position on an optical path; a near-IR cutting unit 7 disposed at the latter stage of the optical path of the optical lens unit 2 with a near-IR cut filter 6 mounted therein; a monochromatic photographing unit 9 composed of imaging devices 8 disposed at the latter stage of the near-IR cutting unit 7, an image saving unit 11 for saving taken monochromatic images; and a gain corrector 11 for correcting the sensitivity change on the basis of the taken monochromatic image using the selected optical filter 3 by the filter switch 5.


Inventors:
Yamaguchi, Kazuo
Application Number:
JP2004000114347
Publication Date:
October 27, 2005
Filing Date:
April 08, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
OLYMPUS CORP
International Classes:
G01J3/50; G01J3/51; G03B11/00; G03B15/00; H01J40/14; H04N5/232; H04N9/04; H04N17/02; H04N17/00; (IPC1-7): H04N17/02; G03B11/00; G03B15/00; H04N5/232; H04N9/04
Attorney, Agent or Firm:
杉村 興作



 
Previous Patent: IMAGING APPARATUS

Next Patent: PHOTOGRAPHIC PRINT SYSTEM