Beam splitter arrangement for magneto-optical recording device

Details Beam splitter arrangement for magneto-optical recording device Beam splitter arrangement for magneto-optical recording device

1994-11-04

1997-03-04

Dinh, Tan

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 13, 369118, 369 4414, G11B 700

Patent

active

056087098

ABSTRACT:
A recording/reproducing apparatus incorporates a beam splitter arrangement that directs stray reflected light away from the incident and exit paths. The beam splitter is arranged such that refracting surfaces are angled away from a 45 degree angle by an amount corresponding to a refracted angle of an incident beam. The entire beam splitter is arranged in the recording/reproducing apparatus such that the refracted beam is refracted by a predetermined angle based on the known refractive index of the beam splitter prisms and the orientation of the beam splitter.

REFERENCES:
patent: 4553229 (1985-11-01), Wakamiya
patent: 4764912 (1988-08-01), Ando et al.
patent: 5099470 (1992-03-01), Matsubayashi
patent: 5105399 (1992-04-01), Shimonou
patent: 5122217 (1992-06-01), Sugahara
patent: 5223983 (1993-06-01), Oono et al.
patent: 5293371 (1994-03-01), Koyama
patent: 5321550 (1994-06-01), Maruyama et al.
patent: 5353274 (1994-10-01), Nishikawa

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