Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2007-06-26
2007-06-26
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
Reexamination Certificate
active
10527053
ABSTRACT:
An object of the present invention is to provide a wavefront aberration correcting device comprising a liquid crystal device that maximizes transmittance and minimizes light transmittance fluctuations even when the liquid crystal is driven by voltage. Disclosed is a wavefront aberration correcting device for correcting a wavefront aberration of light generated in an optical path of an optical system for irradiating light onto a recording medium or guiding the reflected light reflected by the abovementioned recording medium is characterized in that it comprises a pair of opposing transparent electrode layers provided in the abovementioned optical path; and a liquid crystal sandwiched between the abovementioned transparent electrode layers, for generating phase change in passing light due to voltage applied to the abovementioned transparent electrode layers, the abovementioned transparent electrode layer is arranged on an antireflective body comprising a substrate, and a finestructure formed on a substrate and having a concave-convex structure.
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Hashimoto Nobuyuki
Nishihara Ei-ichiro
Takaki Yasuhiro
Bibbins LaTanya
Morgan & Lewis & Bockius, LLP
Tokyo University of Agriculture and Technology TLO Co., Ltd.
Young Wayne
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