Encoder

Details Encoder Encoder

1981-06-15

1984-08-14

Rosenberger, R. A.

Optics: measuring and testing

By polarized light examination

With light attenuation

33125C, 250237G, G01B 1100, G01D 536

Patent

active

044653735

ABSTRACT:
An interpolation encoder comprising a sensor array, a code plate arranged in opposition to the sensor array and having a plurality of groups of lattice patterns, and an arithmetic unit for processing data of the code plate detected by the sensor array. The lattice patterns of at least one of the groups are inclined.

REFERENCES:
patent: 3500055 (1970-03-01), Russell et al.
patent: 3648276 (1972-03-01), Schuman
patent: 3708681 (1973-01-01), Ivers
patent: 3748043 (1973-07-01), Zipin
patent: 4180703 (1979-12-01), Cialone et al.
patent: 4253021 (1981-02-01), Ernst

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