Photosensor scale

Details Photosensor scale Photosensor scale

1998-09-14

2000-12-05

Bennett, G. Bradley

Geometrical instruments

Distance measuring

Scale reading position sensor

A45B 308

Patent

active

061549746

ABSTRACT:
An inexpensive and highly-accurate photosensor scale to be disposed in opposition to a reflex-type photosensor for detecting a position of a mobile body moving within a predetermined region, comprising: a base film composed of an industrial photographic film; a slit pattern formed on a surface of said base film; and a reflecting film formed on said slit pattern.

REFERENCES:
patent: 4286871 (1981-09-01), Erickson
patent: 5576537 (1996-11-01), Holzapfel et al.
patent: 5880882 (1999-03-01), Michel et al.

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