Optical: systems and elements – Diffraction – From grating
Reexamination Certificate
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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Ogawa Hideki
Okuno Takeharu
Lavarias Arnel C.
Nguyen Thong
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