Photosensor scale
AssigneeMeltec Corporation
InventorsToshihiro Nakajima, Saburo Komatsu
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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.
Claims4
A 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;
- said photosensor scale 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.
A 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;
- said photosensor scale comprising:
- a base film composed of an industrial photographic film;
- a slit pattern formed on a surface of said base film;
- a reflecting film formed on said slit pattern through a lower anti-oxidizing protective layer;
- and an upper anti-oxidizing protective layer formed on said reflecting film so as to cover said reflecting film and said lower anti-oxidizing protective layer.
Dependencies are inferred from the claim text.