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US 7,096,478 B2Granted
Optical pickup device with elastic supporters and with dynamic vibration absorbing balance weight bonded in concave part with adhesive agent
AssigneeTEAC Corporation
InventorsMasami Horita, Koji Naraoka, Atsushi Tonosaki
Life of this patent
Estimating the term…
Abstract
An optical pickup device includes a lens for projecting a light onto a recording medium, a lens holder elastically supported by a frame and holding said lens, an actuator mounted in and driving said lens holder, and a weight part balanced with a weight of said actuator.
Claims12
An optical pickup device, comprising:
- a lens for projecting a light onto a recording medium;
- a movable lens holder elastically supported by a frame and holding said lens;
- an actuator mounted in and driving said lens holder;
- and
- a weight part balanced with a weight of said actuator;
- an adhesive agent provided between the weight part and the movable lens holder so as to bond the weight part to the lens holder in such manner that the adhesive agent and the weight part vibrate together to minimize vibration of said lens holder;
- a support part fixed to the frame so as to oppose said lens holder;
- and
- a plurality of elastic supporters each extending along said lens holder and having a distal end engaged said lens holder and a proximal end connected to said support part,
- wherein said lens holder comprises:
- a proximal end part actuated by said actuator;
- a distal end part extending from said proximal end part in a direction away from said support part;
- connection parts provided on both sides of said proximal end part and connected to the distal ends of said elastic supporters;
- and
- a concave part to which said weight part is bonded, the concave part being formed in a tip part formed on a distal end side of said distal end part.
12 more elements
An optical pickup device, comprising:
- a lens for projecting a light onto a recording medium;
- a movable lens holder elastically supported by a frame and holding said lens;
- a weight part fixed to said lens holder;
- and
- an adhesive agent provided between the weight part and the lens holder so as to bond said weight part to said lens holder and having viscoelasticity such that said weight part serves as a dynamic vibration absorber;
- an actuator mounted in and driving said lens holder;
- a support part fixed to the frame so as to oppose said lens holder;
- and
- a plurality of elastic supporters each extending along said lens holder and having a distal end engaging said lens holder and proximal end connected to said support part;
- wherein said weight part is balanced with a weight of said actuator, and
- wherein said lens holder comprises;
- a proximal end part actuated by said actuator;
- a distal end part extending from said proximal end part in a direction away from said support part;
- connection parts provided on both sides of said proximal end part and connected to the distal ends of said elastic supporters;
- and
- a concave part to which said weight part is bonded, the concave part being formed in a tip part formed on a distal end side of said distal end part.
13 more elements
Dependencies are inferred from the claim text.