Scale for photoelectric encoder

Details Scale for photoelectric encoder Scale for photoelectric encoder

2011-03-29

2011-03-29

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Digital pattern reading type converter

Optical

C427S162000, C359S291000

Reexamination Certificate

active

07916045

ABSTRACT:
A scale for a photoelectric encoder effectively protects the base of the scale from corrosion, rust, and flaws. The scale includes a base, a light-absorbing layer including a DLC layer formed on at least one surface of the base, and light-reflecting layers with a higher reflectance than that of the light-absorbing layer with respect to light falling within a wavelength range and formed into a grating on the light-absorbing layer.

REFERENCES:
patent: 2006/0056006 (2006-03-01), Huibers et al.
patent: 2006/0077525 (2006-04-01), Huibers
patent: 2008/0038455 (2008-02-01), Levich et al.
patent: A-2000-18973 (2000-01-01), None
patent: A-2008-45931 (2008-02-01), None

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