Optics: measuring and testing – Of light reflection
Patent
1994-06-20
1995-06-06
Rosenberger, Richard A.
Optics: measuring and testing
Of light reflection
356382, G01B 1100
Patent
active
054227038
ABSTRACT:
A method of measuring light reflected by a test sample with a microscopic photometric system. The test sample placed in an in-focus position of an objective is irradiated, and light reflected by the test sample is measured. Stray light generated by microscopic optics including the objective is measured with the test sample placed in an out-of-focus position of the objective. Light actually reflected by the test sample is determined from a difference between the reflected light and the stray light measured.
REFERENCES:
patent: 4566798 (1986-01-01), Hass
patent: 5108176 (1992-04-01), Malin et al.
patent: 5233405 (1993-08-01), Wildnauer et al.
Fujiwara Nariaki
Horie Masahiro
Kokubo Masahiko
Dainippon Screen Mfg. Co,. Ltd.
Rosenberger Richard A.
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