Optical element, mold for molding optical element and...

Details Optical element, mold for molding optical element and... Optical element, mold for molding optical element and...

2005-02-22

2005-02-22

Nguyen, Thong (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C369S112030

Reexamination Certificate

active

06859319

ABSTRACT:
An optical element including a binary blaze grating formed thereon, wherein the binary blaze grating is formed so as to have step differences formed by a number of levels produced by mechanical processing. The number of levels is equal to or more than 5 and the height of the step difference is greater than or equal to 1 μm.

REFERENCES:
patent: 5073007 (1991-12-01), Kedmi et al.
patent: 5638212 (1997-06-01), Meyers et al.
patent: 6687037 (2004-02-01), Hendriks et al.
patent: 2001-143312 (2001-05-01), None
patent: 2001-256670 (2001-09-01), None

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