Optical pickup using a lamp

Details Optical pickup using a lamp Optical pickup using a lamp

1993-11-29

1995-03-21

LaRoche, Eugene R.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369108, 369118, 369123, G11B 700

Patent

active

054003148

ABSTRACT:
An optical pickup for use in various optical recording/reproducing apparatus includes a general-purpose lamp producing a wide range of light wavelengths, a converging device for converging the light of the lamp, and a pinhole and color filter for enhancing the temporal/spatial coherence of the light. The lamp radiates light containing the intensity of a laser and spectral distribution characteristic of a laser.

REFERENCES:
patent: 4607359 (1986-08-01), Matsubayashi et al.
patent: 5014253 (1991-05-01), Morimoto et al.
patent: 5245182 (1993-09-01), Van Rosmalen et al.
patent: 5278816 (1994-01-01), Russell
patent: 5311495 (1994-05-01), Ando

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