Method and apparatus for measuring transmitted optical...

Details Method and apparatus for measuring transmitted optical... Method and apparatus for measuring transmitted optical...

2009-04-14

2011-11-01

Nguyen, Tu (Department: 2886)

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

Reexamination Certificate

active

08049879

ABSTRACT:
An apparatus and associated method for measuring transmitted optical distortion in a glass sheet includes a glass stand which receives a glass sheet for mounting between a background screen which includes a matrix of spaced apart dots, and a digital camera which captures (1) an image of the glass sheet surface, and (2) an image of the dot matrix transmitted through the glass sheet. The captured images are downloaded to a computer that is suitably programmed to analyze the image data to (1) determine the presence of any markings or elements on the surface of the glass sheet that should be isolated from the dot matrix image, (2) modify the background image to eliminate the image data corresponding to any such surface markings or elements from the image, and (3) determine characteristics indicative of optical distortion in the modified image of the dot matrix background transmitted through the glass sheet.

REFERENCES:
patent: 5471297 (1995-11-01), Tani
patent: 5691811 (1997-11-01), Kihira
patent: 6208412 (2001-03-01), Ladewski
patent: 7345698 (2008-03-01), Abbott et al.
patent: 2004/0057046 (2004-03-01), Abbott et al.

Affiliated with

Also associated with

Rating

Method and apparatus for measuring transmitted optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for measuring transmitted optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring transmitted optical... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4290660