Optical pickup and optical information processing apparatus...

Details Optical pickup and optical information processing apparatus... Optical pickup and optical information processing apparatus...

2006-11-28

2006-11-28

Tran, Thang V. (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044240, C369S112220

Reexamination Certificate

active

07142497

ABSTRACT:
An optical pickup apparatus for performing recording, reproduction and deletion of information onto each of three types of optical recording mediums including light sources of a blue wavelength zone, light sources of a red wavelength zone and light sources of an infrared wavelength zone. The optical pickup apparatus also has a single object lens which condenses a light from any of the light sources and a single aberration correction device disposed in a common light path between each of the light sources and the object lens.

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