Diffractive optical element and optical system having the same

Details Diffractive optical element and optical system having the same Diffractive optical element and optical system having the same

2005-08-30

2005-08-30

Nguyen, Thong (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S569000, C359S576000

Reexamination Certificate

active

06937397

ABSTRACT:
Disclosed is a diffractive optical element which includes a plurality of diffraction gratings being made of materials having different dispersions and being formed in accumulation, wherein at least one of the diffraction gratings has a varying grating thickness.

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