Method for evaluating gloss and brightness character of coated p

Details Method for evaluating gloss and brightness character of coated p Method for evaluating gloss and brightness character of coated p

1991-06-13

1996-08-27

Pham, Hoa Q.

Optics: measuring and testing

Of light reflection

With diffusion

356371, 3561245, G01N 2132

Patent

active

055506321

ABSTRACT:
A method for evaluating the gloss and brightness character of a coated paint film. The method is comprised of projecting a brightness and darkness pattern onto the surface of the coated paint film. The projected pattern is picked up by a CCD camera and converted to a two-dimensional brightness and darkness pattern image. The disturbance of the pattern image is separated into a plurality of spatial frequency ranges. Each of the spatial frequency ranges is independently quantified to obtain an evaluation value which is in close correlation to a corresponding organoleptic evaluation value based on human's visual observation.

REFERENCES:
patent: 4846578 (1989-07-01), Morita et al.
patent: 5092676 (1992-03-01), Harata et al.
German PTO Office Action, Dated Sep. 14, 1992, Application No. P 41 20 289.9-52.

Affiliated with

Also associated with

Rating

Method for evaluating gloss and brightness character of coated p 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 for evaluating gloss and brightness character of coated p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for evaluating gloss and brightness character of coated p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1059541