Diffractive optical element

Details Diffractive optical element Diffractive optical element

1998-09-29

2000-07-11

Spyrou, Cassandra

Optical: systems and elements

Diffraction

From grating

359819, G02B 702, G02B 518

Patent

active

060881607

ABSTRACT:
A diffractive optical element includes an optically functioning part including a diffraction grating and a flange part disposed around the optically functioning part. On an outer circumferential face of the flange part, there are at least three protrusions at respective different locations. The protrusions project outward from the outer circumferential face.

REFERENCES:
patent: 5024509 (1991-06-01), Kurihara
patent: 5608579 (1997-03-01), Nomura

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