Apparatus for connecting and driving optical pick-up
AssigneeBenq Corporation
InventorsNan-Ching Lee, Chiao-Fan Huang
Life of this patent
Estimating the term…
Abstract
The present invention relates to an apparatus for connecting a transmission device to an optical pick-up. The transmission device includes a connecting unit and a lead screw and a driving unit. The connecting unit includes a main portion, an elastic portion, a tooth-like portion and a restriction portion. The restriction portion limits the elastic portion to move within a range of a first value. The lead screw engages with the tooth-like portion. A maximum engagement depth between the lead screw and the tooth-like portion is a second value. The second value is larger than the first value to prevent the lead screw and the tooth-like portion from disengaging.
Claims14
An apparatus for connecting a transmission device to an optical pick-up, said transmission device including a lead screw and a driving unit for driving said lead screw to rotate, said optical pick-up being disposed in a housing, said housing being connected with and movable by said apparatus, said apparatus comprising:
- a main portion having an extending portion;
- an elastic portion extending from said extending portion such that a space is formed between said elastic portion and said main portion,
- a tooth-like portion extending from said elastic portion along a first direction;
- and
- a restriction portion extending from said elastic portion to limit said elastic portion to move within a range of a first value along a second direction opposite to said first direction;
- wherein, said lead screw drives and guides said apparatus to move along said lead screw, and said lead screw engages with said tooth-like portion at a first position, and maximum engagement depth between said lead screw and said tooth-like portion is a second value larger than said first value.
An apparatus for driving an optical pick-up, said apparatus comprising:
- a connecting unit, said connecting unit including:
- a main portion having an extending portion,
- an elastic portion extending from said extending portion such that a space is formed between said elastic portion and said main portion;
- a tooth-like portion extending from said elastic portion along a first direction;
- and
- a restriction portion extending from said elastic portion to limit said elastic portion to move within a range of a first value along a second direction opposite to said first direction;
- a housing connected to said connecting unit for supporting said optical pick-up;
- a lead screw for engaging with said tooth-like portion at a first position to guide said connecting unit to move, wherein, engagement depth between said lead screw and said tooth-like portion is a second value larger than said first value,
- a driving unit for driving said lead screw to rotate;
- and
- an elastic unit disposed within said space to provide a force to said tooth-like portion at a second position such that said tooth-like portion engages with said lead screw;
- wherein, the height of said second position is lower than the height of said first position.
An apparatus for supporting an optical pick-up, said apparatus comprising:
- a connecting unit, said connecting unit comprising:
- a main portion;
- a deformable extended portion elastically connected to said main portion, wherein a space is formed between said extended portion and said main portion, a size of said space is adjusted when said extended portion deforms,
- a tooth-like portion protruded from said extended portion;
- a lead screw engaging with said tooth-like portion;
- and
- an elastic member disposed within said space for applying a force onto said extended portion to maintain said tooth-like portion engages with said lead screw.
Dependencies are inferred from the claim text.