G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.21
G11B 7/09 (2006.01)
Patent
CA 1300750
ABSTRACT OF THE DISCLOSURE A light beam emitted from a source is focused on an object. The beam reflected by the object passes through an optical member and is detected by a photodetector. The optical member has a reflecting surface the reflectivity of which varies continuously with respect to the angle of incidence.
560367
Imai Hitoshi
Okada Kazuo
Tadokoro Michihiro
Imai Hitoshi
Mitsubishi Denki Kabushiki Kaisha
Okada Kazuo
Riches Mckenzie & Herbert Llp
Tadokoro Michihiro
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