Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent
1975-11-25
1977-05-24
Wilbur, Maynard R.
Optics: measuring and testing
Angle measuring or angular axial alignment
With photodetection remote from measured angle
356 5, 356108, 356141, G01B 1126
Patent
active
040251926
ABSTRACT:
A method of measuring changes in the location of a physically inaccessible point on a surface is disclosed in which the surface may be moved relative to the measuring point between successive measurements.
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patent: 3809477 (1974-05-01), Russell
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patent: 3866229 (1975-02-01), Hammack
patent: 3898445 (1975-08-01), MacLeod et al.
Loney, The Elements of Coordinate Geometry, 1920, pp. 10-11, Sci. Lib.
Marcus Holger
Nordstrom Lennart
Scholdstrom Karl Ragnar
Stahl Nils
AGA Aktiebolag
Buczinski S. C.
Wilbur Maynard R.
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