公开(公告)号：AU5159685A

公开(公告)日：1986-07-10

申请号：AU5159685

申请日：1985-12-23

Applicant: SONY CORP

Inventor： KAMOTO HIDETOSHI ,  YAMANOUCHI HIROSHI ,  TAKAHASHI SHOGO ,  TAKAMIYA TORU ,  GODA YOSHIMASA

IPC: G11B17/03 ,  G11B33/08 ,  G11B19/20

Abstract: s A recording and/or reproducing device for a disc (33) enclosed in a cassette (31) has a chassis (48), bearings (100, 101) in the chassis, a spindle (95) mounted by the bearings (100, 101) for rotation with respect to the chassis (48), a magnet holder (98) mounted on the spindle (95), a rotor magnet (96) mounted on the magnet holder (98) and rotatable with respect to the chassis (48), a base board (106) affixed to the chassis (48), a stator coil (105) mounted on the base board (106) and juxtaposed with the rotor magnet (96), a turntable (118) mounted to the upper part of the spindle (95), and a cassette holder mounted on the chassis (48) and movable, for engaging the disc cassette (31) with the turntable (118), between an inoperative position to be assumed when the disc cassette is inserted into or detached from the recording and/or reproducing apparatus and an operative position to be assumed when the disc cassette is mounted on the turntable (118).

公开(公告)号：CA1268369A

公开(公告)日：1990-05-01

申请号：CA515664

申请日：1986-08-11

Applicant: SONY CORP

Inventor： OINOUE HIROSHI ,  GODA YOSHIMASA

IPC: G02B7/00 ,  G02B26/10 ,  G11B7/08 ,  G11B7/09 ,  G11B7/12

Abstract: An optical pickup device comprising an objective lens having an optic axis for focusing a light beam emitted from a light source on an optical recording medium, The objective lens is carried on a support member which is coupled with a base through a coupling unit. The coupling unit has a first rotation axis parallel to the optic axis for permitting rotation of the support member about the first rotation axis in a tracking direction perpendicular to the optic axis and a second rotation axis perpendicular to the optic axis for permitting rotation of the support member about the second rotation axis in a focusing direction parallel to the optic axis. The support member has a center of gravity positioned substantially on the first rotation axis. A light beam reflected from the optical recording medium is sensed for exerting a force on the support member to move the objective lens in the focusing and/or tracking directions so as to adjust the optic axis to a desired position.

公开(公告)号：HK160295A

公开(公告)日：1995-10-20

申请号：HK160295

申请日：1995-10-12

Applicant: SONY CORP

Inventor： OINOUE HIROSHI ,  GODA YOSHIMASA

IPC: G02B7/00 ,  G02B26/10 ,  G11B7/08 ,  G11B7/09 ,  G11B7/12

Abstract: An optical pick-up device (1) comprising an objective lens (23) having an optical axis for focusing a light beam emitted from a light source onto an optical recording medium. The objective lens (23) is carried on a support member (19) which is coupled with a base (2) through a coupling unit (10). The coupling unit (10) has a first rotation axis parallel to the optical axis for permitting rotation of the support member (19) about the first rotation axis in a tracking direction perpendicular to the optical axis and a second rotation axis perpendicular to the optical axis for permitting rotation of the support member (19) about the second rotation axis in a focusing direction parallel to the optical axis. The support member (19) has a centre of gravity positioned substantially on the first rotation axis. A light beam reflected from the optical recording medium is sensed for deriving a force to be exerted on the support member (19) to move the objective lens (23) in the focusing and/or tracking directions so as to adjust the optical axis to a desired position.

公开(公告)号：DE69220713T2

公开(公告)日：1998-01-02

申请号：DE69220713

申请日：1992-04-23

Applicant: SONY CORP

Inventor： GODA YOSHIMASA

IPC: G11B7/09 ,  G11B7/22 ,  G02B7/08

Abstract: A method for producing an object lens holder (1) for holding an object lens (17) adapted for converging a laser light radiated from a laser light source on a signal recording surface of an optical recording medium which comprises the following steps: forming resilient deflection portions (8-11) in a thin sheet member (41), integrally molding first and second bobbin halves (2, 3) of synthetic resin on the thin sheet member (41), abutting and connecting the first and second bobbin halves (2, 3) to each other, and severing the first and second bobbing halves (2, 3) from the thin sheet member (41) together with the resilient deflecting portions (8-11).

公开(公告)号：AT74681T

公开(公告)日：1992-04-15

申请号：AT86306257

申请日：1986-08-13

Applicant: SONY CORP

Inventor： OINOUE HIROSHI ,  GODA YOSHIMASA

IPC: G02B7/00 ,  G02B26/10 ,  G11B7/08 ,  G11B7/09 ,  G11B7/12

Abstract: An optical pick-up device (1) comprising an objective lens (23) having an optical axis for focusing a light beam emitted from a light source onto an optical recording medium. The objective lens (23) is carried on a support member (19) which is coupled with a base (2) through a coupling unit (10). The coupling unit (10) has a first rotation axis parallel to the optical axis for permitting rotation of the support member (19) about the first rotation axis in a tracking direction perpendicular to the optical axis and a second rotation axis perpendicular to the optical axis for permitting rotation of the support member (19) about the second rotation axis in a focusing direction parallel to the optical axis. The support member (19) has a centre of gravity positioned substantially on the first rotation axis. A light beam reflected from the optical recording medium is sensed for deriving a force to be exerted on the support member (19) to move the objective lens (23) in the focusing and/or tracking directions so as to adjust the optical axis to a desired position.

公开(公告)号：DE69220713D1

公开(公告)日：1997-08-14

申请号：DE69220713

申请日：1992-04-23

Applicant: SONY CORP

Inventor： GODA YOSHIMASA

IPC: G11B7/09 ,  G11B7/22 ,  G02B7/08

Abstract: A method for producing an object lens holder (1) for holding an object lens (17) adapted for converging a laser light radiated from a laser light source on a signal recording surface of an optical recording medium which comprises the following steps: forming resilient deflection portions (8-11) in a thin sheet member (41), integrally molding first and second bobbin halves (2, 3) of synthetic resin on the thin sheet member (41), abutting and connecting the first and second bobbin halves (2, 3) to each other, and severing the first and second bobbing halves (2, 3) from the thin sheet member (41) together with the resilient deflecting portions (8-11).

公开(公告)号：AU585295B2

公开(公告)日：1989-06-15

申请号：AU5159685

申请日：1985-12-23

Applicant: SONY CORP

Inventor： KAMOTO HIDETOSHI ,  YAMANOUCHI HIROSHI ,  TAKAHASHI SHOGO ,  TAKAMIYA TORU ,  GODA YOSHIMASA

IPC: G11B17/03 ,  G11B33/08 ,  G11B19/20

Abstract: s A recording and/or reproducing device for a disc (33) enclosed in a cassette (31) has a chassis (48), bearings (100, 101) in the chassis, a spindle (95) mounted by the bearings (100, 101) for rotation with respect to the chassis (48), a magnet holder (98) mounted on the spindle (95), a rotor magnet (96) mounted on the magnet holder (98) and rotatable with respect to the chassis (48), a base board (106) affixed to the chassis (48), a stator coil (105) mounted on the base board (106) and juxtaposed with the rotor magnet (96), a turntable (118) mounted to the upper part of the spindle (95), and a cassette holder mounted on the chassis (48) and movable, for engaging the disc cassette (31) with the turntable (118), between an inoperative position to be assumed when the disc cassette is inserted into or detached from the recording and/or reproducing apparatus and an operative position to be assumed when the disc cassette is mounted on the turntable (118).