Thin type optical head

Details Thin type optical head Thin type optical head

1995-06-14

1997-04-22

Ben, Loha

Optical: systems and elements

Lens

With support

359813, 359824, 369 4415, G02B 702

Patent

active

056233728

ABSTRACT:
An optical head has the structure that an optical system is mounted on a movable body and is separated from a fixed optical system with which the optical system cooperates and an objective lens actuator does not have the magnetic circuit on the movable body. The objective lens actuator is balanced so that the focusing drive point of the objective lens actuator corresponds to the gravity center thereof.

REFERENCES:
patent: 4607913 (1986-08-01), Jansen
patent: 4798447 (1989-01-01), Jansen et al.
patent: 4922477 (1990-05-01), Miura
patent: 5124965 (1992-06-01), Mizuno et al.
patent: 5150343 (1992-09-01), Goto et al.
patent: 5267229 (1993-11-01), Ikegame
patent: 5305151 (1994-04-01), Kakimoto et al.
patent: 5319624 (1994-06-01), Yamasaki et al.
patent: 5361243 (1994-11-01), Kasahara
Shigeru Nakamura, et al., "Stacked Optical Disk Drive for Multimedia Files", JJpn. J. Appl. Phys., vol. 31 (1992) pp. 625-629, Part I, No. 2B, Feb. 1992.

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