Linear encoder using diverging light beam diffraction

A linear encoder characterized as having a few number of parts including a light source that directs a beam of light onto the grating of a movable scale where reflected diffracted beams from two locations on the scale interfere with one another to form light fringe bands on a plane. In one embodimen...

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Bibliographische Detailangaben

Hauptverfasser:	ESELUN, STEVEN ALBERT
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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