Optics: measuring and testing – By polarized light examination – Of surface reflection
Reexamination Certificate
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.
Day John
Elton Nick
Punnoose Roy
Sturm & Fix LLP
Surfoptic Limited
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