Measuring a surface characteristic

Details Measuring a surface characteristic Measuring a surface characteristic

2004-04-15

2010-06-22

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

By polarized light examination

Of surface reflection

C356S237200

Reexamination Certificate

active

07742168

ABSTRACT:
At least one surface characteristic of a sample, e.g. gloss, refractive index, micro-roughness, macroroughness, colour shift, is determined by illuminating a surface of the sample with a collimated beam of light at an angle to the plane of the surface and using an imaging detector to record an intensity and angular distribution image of the light from the beam reflected from the surface.

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International Search Report with Written Opinion of the International Searching Authority dated Jul. 30, 2004 for corresponding International Application No. PCT/GB2004/001634, filed Apr. 15, 2004, 9 pgs.

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