Camera module and mobile phone using the same
AssigneeLG Innotek Co., Ltd.
InventorDuhee Kim
Life of this patent
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Abstract
Disclosed herein is a camera module comprising: a circuit board; a frame coupled to the circuit board; an image sensor on the circuit board; a bobbin on the frame, a plurality of lenses being inside the bobbin; a coil wound on the bobbin, the bobbin moving to two directions based on a current applied to the coil; a magnet configured to interact the coil; and a yoke on the frame, the magnet being at an inner side of the yoke, wherein the bobbin moves to a first direction when a forward current is applied to the coil and to a second direction when a reverse current is applied to the coil.
Claims20
A voice coil motor (VCM) of a camera module, comprising:
- a yoke comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the yoke and comprising an upper surface and a lower surface opposite from the upper surface;
- a coil disposed on the bobbin;
- a magnet disposed between the coil and the lateral plate of the yoke;
- and
- a frame disposed below the bobbin,
- wherein the bobbin moves in a first direction when a forward current is applied to the coil and in a second direction when a reverse current is applied to the coil,
- wherein the first direction is opposite to the second direction,
- wherein the frame comprises an upper surface facing the lower surface of the bobbin;
- and
- wherein the upper surface of the frame comprises a first area overlapped with a lower end of the bobbin in an optical axis direction and a protrusion upwardly more protruding than the first area and disposed outside the first area, and
- wherein an upper surface of the protrusion of the frame is lower than the upper surface of the bobbin.
A camera module comprising:
- a printed circuit board;
- an image sensor disposed on the printed circuit board;
- a yoke comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the yoke and comprising an upper surface and a lower surface opposite from the upper surface;
- a lens barrel coupled to the bobbin;
- a lens coupled to the lens barrel and overlapped with the image sensor in an optical axis direction;
- a coil disposed on the bobbin;
- a magnet disposed between the coil and the lateral plate of the yoke;
- a frame disposed below the bobbin;
- and
- an elastic member coupled to the bobbin,
- wherein the bobbin moves in a first direction when a forward current is applied to the coil and in a second direction when a reverse current is applied to the coil,
- wherein the first direction is opposite to the second direction,
- wherein the frame comprises an upper surface facing the lower surface of the bobbin,
- wherein the upper surface of the frame comprises a first area overlapped with a lower end of the bobbin in an optical axis direction and a protrusion upwardly more protruding than the first area and disposed outside the first area, and
- wherein an upper surface of the protrusion of the frame is lower than the upper surface of the bobbin.
A voice coil motor (VCM) of a camera module, comprising:
- a yoke comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the yoke and comprising an upper surface and a lower surface opposite from the upper surface;
- a coil disposed on the bobbin;
- a magnet disposed between the coil and the lateral plate of the yoke;
- and
- a frame disposed below the bobbin,
- wherein the bobbin moves in a first direction when a forward current is applied to the coil and in a second direction when a reverse current is applied to the coil,
- wherein the frame comprises an upper surface facing the lower surface of the bobbin,
- wherein the upper surface of the frame comprises a first area overlapped with a lower end of the bobbin in an optical axis direction and a protrusion protruding upwardly more than the first area and disposed outside the first area, and
- wherein an upper surface of the protrusion of the frame is lower than the upper surface of the bobbin.
Dependencies are inferred from the claim text.