Optical: systems and elements – Lens – Single component with multiple elements
Reexamination Certificate
2005-05-24
2005-05-24
Spector, David N. (Department: 2873)
Optical: systems and elements
Lens
Single component with multiple elements
C359S738000, C264S001700
Reexamination Certificate
active
06898027
ABSTRACT:
An optical element and manufacturing method of the present invention prevent the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element is configured from at least one substrate having a plurality of lens substrates that have embedded lenses made of a material with a higher refractive index than the at least one substrate. A shielding means limits the optical path so that incident light propagates only within a prescribed optical path formed on a light incidence-side or emission-side surface of one of the lens substrates. In addition, the shielding means is formed from an absorptive or reflective film placed in a region outside the prescribed optical path or through machining the region outside the prescribed optical path.
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PCT/JP02/12712, International Search Report, Feb. 4, 2003.
Aoki Sunao
Kanazawa Takakiyo
Miura Takahiro
Watanabe Tetsu
Yamada Masahiro
Kananen Ronald P.
Rader & Fishman & Grauer, PLLC
Sony Corporation
Spector David N.
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