Optical pick-up device using micromirror array lens

Details Optical pick-up device using micromirror array lens Optical pick-up device using micromirror array lens

2008-01-01

2008-01-01

Korzuch, William R. (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044320, C369S112260

Reexamination Certificate

active

07315503

ABSTRACT:
An optical pick-up device comprising at least one micromirror array lens. The micromirror array lens enables focusing, tracking, and/or tilt compensation in the optical pick-up device without macroscopic motions. The micromirror array lens provides the device with a simple structure, which can reduce the size, weight, and cost of the recording/reproducing system. The device is also durable for vibration. Optical pick-up devices using an array of micromirror array lenses can increase the recording/reading speed without macroscopic motions. The recording/reading speed can be increased by adding more micromirror array lenses to the lens array. The present invention can also be used to record/read information on/from a multi-layered optical disc.

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English Machine-Assisted Translation of JP 2002-288873 A, translated by The Thomson Corporation.
A. Feinerman et al, “Agile Micro-Mirrors with Three Degrees of Freedom Manufactured with Liquid MEMS Technology” Free Space Laser Communication and Laser Imaging Proc. SPIE, V. 4489, 2002, pp. 166-176.
James G. Boyd IV and Gyoungil Cho, “Fast-response Variable Focusing Micromirror Array Lens,” Proc. SPIE, vol. 5055, pp. 278-286 (2003).

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