Optical head structure having compactly arranged parts

Details Optical head structure having compactly arranged parts Optical head structure having compactly arranged parts

1995-11-02

1996-08-06

Tran, Thai Q.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369116, 369106, G11B 700

Patent

active

055441440

ABSTRACT:
An optical head structure, employed in an optical device, in which light radiated from a predetermined light source is projected onto a predetermined recording medium through a light splitting member is disclosed. Part of the light is directed to the outside of the light splitting member and converged so as to be detected by a predetermined light detecting member. The light directed to the outside of the light splitting member is reflected at a predetermined angle by a predetermined light reflecting member. Thus, it becomes possible to make the whole volume of the optical device smaller. Also, the number of parts required in the optical head structure can be decreased.

REFERENCES:
patent: 4881216 (1989-11-01), Deguchi et al.
patent: 4989198 (1991-01-01), Kojima et al.
patent: 5067117 (1991-11-01), Shimizu et al.
patent: 5073888 (1991-12-01), Takahashi et al.
English Language translation of Japanese Provisional Publication No. SHO-59-195344.
English Language translation of Japanese Utility Model No. SHO-61-112302.
English Language translation of Japanese Provisional Publication No. SHO-60-29947.

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