Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Reexamination Certificate
2007-11-20
2007-11-20
Boutsikaris, Leonidas (Department: 2872)
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
C359S001000, C398S212000
Reexamination Certificate
active
11104637
ABSTRACT:
A light receiving apparatus comprises a holographic optical device having a plurality of holograms recorded in a light receiving surface thereof. The holographic optical device is configured to diffract light of a predetermined wavelength incident thereon from different directions onto a common focal area. The holographic optical device is shaped such that a first vector normal to the light receiving surface at a first location thereon is oriented along a first direction and such that a second vector normal to the light receiving surface at a second location thereon is oriented along a second direction, the second direction being different from the first direction.
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Boutsikaris Leonidas
Buchanan Ingersol & Rooney PC
Philip Morris USA Inc.
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