Optical: systems and elements – Lens – With light limiting or controlling means
Reexamination Certificate
2005-11-29
2005-11-29
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Lens
With light limiting or controlling means
C250S227110
Reexamination Certificate
active
06970307
ABSTRACT:
An optical near-field generating element is provided with: a light shielding member, which is placed on an optical path of light emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light; and a dielectric film placed in close contact with the micro opening. Alternatively, an optical near-field generating element is provided with a light shielding member, which is placed on an optical path of lights emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light, the shielding member equipped with: a main portion for defining a basic shape of the micro opening; and a protrusion portion protruding from the main portion toward the center of the micro opening.
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Sugiura Satoshi
Yamakawa Yuzo
Collins Darryl J.
Pioneer Corporation
Sugarman Scott J.
Sughrue & Mion, PLLC
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