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US 2011/0235178 A1Published application
Diffractive optical element and optical device
OwnerKazuhiro MINAMI, Kazuhiro Yamadainventors
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Abstract
A diffractive optical element includes first and second optical members which are stacked. A diffraction grating is formed at an interface between the first and second optical members. A plurality of pores are formed in the second optical member.
Claims17
A diffractive optical element, comprising:
- a first optical member in which a diffraction grating is formed;
- and
- a second optical member in which a diffraction grating is formed,
- wherein the first and second optical members are arranged in a state in which the diffraction gratings of the first and second optical members face each other, and
- the second optical member includes a plurality of pores.
2 more elements
Dependencies are inferred from the claim text.