Pattern detecting method, pattern detecting apparatus, projectio

Details Pattern detecting method, pattern detecting apparatus, projectio Pattern detecting method, pattern detecting apparatus, projectio

1994-09-12

1997-11-04

Grimley, Arthur T.

Photocopying

Projection printing and copying cameras

Step and repeat

250548, 356400, 356401, 355 71, G03B 2742, G03B 2772

Patent

active

056845650

ABSTRACT:
A method and apparatus is disclosed for detecting a pattern image of each of a plurality of patterns on the surface of an object. Light emitted from either a light source including a wide wavelength or a light source including a plurality of monowavelengths is applied to the object. The object includes a layered structure having a plurality of layers, wherein at least a part of an uppermost layer of the object is optically transparent. Spectral illumination intensity characteristics of the light emitted from the light source is varied, depending on information about both the layered structure of the object, and a material of the object to obtain a desired spectral illumination intensity, and a pattern image of each of patterns is detected as either a one-dimensional or a two-dimensional image based on light reflected from the object.

REFERENCES:
patent: 4777374 (1988-10-01), Nakata et al.
patent: 5266790 (1993-11-01), Markle et al.
patent: 5340992 (1994-08-01), Matsugu et al.
patent: 5432607 (1995-07-01), Taubenblatt
patent: 5477309 (1995-12-01), Ota et al.
patent: 5483348 (1996-01-01), Komatsu et al.
patent: 5489986 (1996-02-01), Magome et al.

Affiliated with

Also associated with

Rating

Pattern detecting method, pattern detecting apparatus, projectio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pattern detecting method, pattern detecting apparatus, projectio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pattern detecting method, pattern detecting apparatus, projectio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1836925