Abstract: A camera device is provided, which includes an image sensor and an optical lens arranged corresponding to the image sensor. An axis is defined on the light incident surface of the image sensor. The edge of the optical lens includes a straight segment that is parallel to the axis. Since the non-effective area of the optical lens is decreased, the camera module has a smaller size.

Abstract: An electromagnetic driving device is provided, which includes a stationary portion, a movable portion adapted to support an element, a number of rolling balls, a driving magnet, a driving coil, and a magnetic attraction element. The stationary portion and the movable portion are arranged along a main axis. The rolling balls and the driving magnet are positioned between the stationary portion and the movable portion. The driving coil is arranged to correspond to the driving magnet and configured to enable the movement of the movable portion along a direction perpendicular to the main axis. The magnetic attraction element is arranged to correspond to the driving magnet. The magnetic force between the magnetic attraction element and the driving magnet is greater than the sum of the weight of the movable portion, the element, and the magnetic member.

Abstract: The tri-axis close-loop feedback controlling module for electromagnetic lens driving device includes a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Hall element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device.

Abstract: An optical image anti-shake device with a yoke is provided. The optical image anti-shake device includes: a casing having a first aperture; a fixing portion having a bottom plate, the bottom plate having a second aperture corresponding in position to the first aperture; and an active portion enclosed by the casing and resiliently clamped between the casing and the bottom plate by the fixing portion, the active portion including: a correcting module for correcting, with a magnetic force, a blur of images caused by a shake of the optical image anti-shake device; a frame having a receiving space; a lens holder disposed in the receiving space of the frame; a lens unit corresponding in position to the first aperture and the second aperture, the lens unit being carried by the lens holder and having an image-capturing optical axis; and a yoke fixed to the frame.

Abstract: The present invention discloses a lens driving apparatus with a closed-loop anti-shake structure, comprising: a lens holder comprising a coil; a frame comprising a plurality of magnets and receiving the lens holder; a driving circuit board disposed under the frame; a plurality of first set of elastic bodies configured such that the lens holder remains movable in a direction of a first axis with respect to the frame; a plurality of second set of elastic bodies configured such that the frame remains movable in a direction perpendicular to the first axis with respect to the driving circuit board; and a first optical module and a first optical reference respectively disposed at the driving circuit board and the lens holder, the first optical module sensing a relative movement of the first optical reference so as to sense a movement of the lens holder in the direction of the first axis.

Abstract: The present invention discloses a lens driving device which includes a lens holder defining an optical axis and being for holding a lens; a first AF coil disposed with respect to the lens holder; an OIS coil structure having two coils respectively disposed by two sides of the lens holder on a first plane having a normal direction parallel to the optical axis; two magnets respectively disposed with respect to the respective coils and having a first surface facing the first AF coil and a second surface facing the OIS coil structure; and a circuit structure connected electrically to the OIS coil structure and taking control thereof. At least one of the two magnets and the first AF coil cooperate to drive the lens holder along the optical axis, and each of the two magnets and the OIS coil structure cooperate to drive the lens holder along a direction perpendicular to the optical axis.

Abstract: Provided is a lens driving device which includes: a lens holder including a coil; a frame for receiving the lens holder; a driving circuit board disposed below the frame; a plurality of first conductive elastic bodies disposed in a manner to keep the lens holder moving in a Z-axis direction; and a plurality of second conductive elastic bodies disposed in a manner to keep the frame moving in a direction perpendicular to the Z-axis direction. The lens driving device further comprises a plurality of electrical contact-oriented Z-axis position sensor. The Z-axis position sensor senses the motion of the lens holder in the Z-axis direction. An electronic circuit between a portion of the plurality of electrical contacts and the coil of the lens holder comprises a Molded Interconnect Device and a portion of the first conductive elastic bodies. The Molded Interconnect Device is disposed on the frame.

Abstract: An anti-shake device furnished between a lens module and an image sensor. An optical path is defined along the lens module and image sensor. The anti-shake device comprises a base plate, at least one piezoelectric member and a circuit member. The base plate is located in the optical path and has a surface facing the lens module, wherein a first axial direction and a second axial direction are defined on the surface. The piezoelectric member is located on the base plate and contacts with the lens module. The circuit member located on the base plate comprises a control module for controlling the piezoelectric member to drive the lens module moving alone the first and second axial directions in order to adjust the deviation caused by shaking.

Abstract: The tri-axis close-loop feedback controlling module for electromagnetic lens driving device comprises a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Hall element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device.

Abstract: A piezoelectric driving module for lens, which defines a photographic optical axis and includes a housing, a driven object (e.g., a lens module), a piezo member, and a rubbing element. The piezo member and the rubbing element are provided in the housing and located on two lateral sides of the driven object respectively. The piezo member drives the driven object by friction so that the driven object can be moved along the photographic optical axis until focused. Meanwhile, a predetermined frictional force is generated between the rubbing element and the driven object to reduce a gravity-induced speed difference between forward and backward movements of the driven object along the photographic optical axis.

Abstract: A piezoelectric driving module for lens, which defines a photographic optical axis and includes a housing, a driven object (e.g., a lens module), a piezo member, and a rubbing element. The piezo member and the rubbing element are provided in the housing and located on two lateral sides of the driven object respectively. The piezo member drives the driven object by friction so that the driven object can be moved along the photographic optical axis until focused. Meanwhile, a predetermined frictional force is generated between the rubbing element and the driven object to reduce a gravity-induced speed difference between forward and backward movements of the driven object along the photographic optical axis.

Abstract: An anti-shake device furnished between a lens module and an image sensor. An optical path is defined along the lens module and image sensor. The anti-shake device comprises a base plate, at least one piezoelectric member and a circuit member. The base plate is located in the optical path and has a surface facing the lens module, wherein a first axial direction and a second axial direction are defined on the surface. The piezoelectric member is located on the base plate and contacts with the lens module. The circuit member located on the base plate comprises a control module for controlling the piezoelectric member to drive the lens module moving alone the first and second axial directions in order to adjust the deviation caused by shaking.

Abstract: A miniature zoom lens system comprises three lens groups having four lenses in total. The first lens group has negative power and is fixed. The second lens group has positive power and includes two lenses. An aperture is furnished in front of and movable with the second lens group. The third lens group has positive power. The second and third lens groups are movable along an optical axis between a wide-angle position and a telephoto position. The system fulfills the following conditions: 11.5<Dw1-2/Dw2-3<18.5; and Dt1-2/Dt2-3<0.2. Wherein, Dw1-2 and Dt1-2 respectively are the air spacing between the first and second lens groups at the wide-angle position and the telephoto position; Dw2-3 and Dt2-3 respectively are the air spacing between the second and third lens groups at the wide-angle position and the telephoto position.

Abstract: A miniature zoom lens system comprises three lens groups having four lenses in total. The first lens group has negative power and is fixed. The second lens group has positive power and includes two lenses. An aperture is furnished in front of and movable with the second lens group. The third lens group has positive power. The second and third lens groups are movable along an optical axis between a wide-angle position and a telephoto position. The system fulfills the following conditions: 11.5<Dw1-2/Dw2-3<18.5; and Dt1-2/Dt2-3<0.2. Wherein, Dw1-2 and Dt1-2 respectively are the air spacing between the first and second lens groups at the wide-angle position and the telephoto position; Dw2-3 and Dt2-3 respectively are the air spacing between the second and third lens groups at the wide-angle position and the telephoto position.