Optics: measuring and testing – Refraction testing – Prism engaging specimen
Patent
1976-10-20
1978-02-07
Clark, Conrad J.
Optics: measuring and testing
Refraction testing
Prism engaging specimen
350 14, G01B 902
Patent
active
040724220
ABSTRACT:
This disclosure describes an apparatus for interferometrically measuring the physical properties of test object in which a test object having at least two surfaces and a substantial thickness is illuminated by a source of broadband light beam, each of plural wave fronts then formed and having an optical path difference therebetween is split by the transmission of the light beam or by the reflection of the light beam thereby, the split wave fronts are superposed each other respectively to form broadband light interference fringes and the physical properties such as thickness and refractive index of the test object are measured from the broadband light interference fringes, and which is especially provided with means for forming broadband light interference fringe by superposing the split wave fronts tilted to each other, while forming an image of said test object in the position where said interference fringe is formed.
REFERENCES:
patent: 2518647 (1950-08-01), Teeple et al.
patent: 2578859 (1951-12-01), Teeple et al.
patent: 2655073 (1953-10-01), Strickler et al.
patent: 3319515 (1967-05-01), Flournoy
Matsumoto Kazuya
Takeda Mitsuo
Tanaka Nobuyoshi
Canon Kabushiki Kaisha
Clark Conrad J.
LandOfFree
Apparatus for interferometrically measuring the physical propert does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for interferometrically measuring the physical propert, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for interferometrically measuring the physical propert will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1398462