Abstract: The present disclosure provides a lens driving apparatus. The lens driving apparatus includes a base, a barrel, two elastic members sandwiched between the barrel and the base, and a conductive wire connecting the two elastic members to form a current loop with the two elastic members. The base includes a pedestal and a conductive terminal embedded in the pedestal and electrically connected to outside. The two elastic members are electrically connected with the conductive terminal for driving the barrel to reciprocate in a direction of an optical axis. At least one of the two elastic members is made of memory alloys.

Abstract: The present disclosure provides a lens driving apparatus comprising: a base comprising insulated first and second conductive terminals; a supporting frame provided with third conductive terminal electrically connected to second conductive terminal; a barrel comprising insulated first and second conductive wires; and elastic members made of memory alloys and comprising first and second elastic members. The first elastic member has one end fixed to supporting frame and electrically connected to third conductive terminal and another end fixed to barrel and electrically connected to first conductive wire to form current loop for driving barrel to move in positive or negative direction of optical axis. The second elastic member has one end fixed to base and electrically connected to first conductive terminal, and another end fixed to barrel and electrically connected to second conductive wire to form current loop for driving barrel to move in negative or positive direction of optical axis.

Abstract: The present disclosure provides a lens driving apparatus. The lens driving apparatus includes: a base; a first supporting frame supported by the base body; a second supporting frame supported by the first supporting frame; a third supporting frame covering and fixed to the second supporting frame and enclosing an accommodating space together with the second supporting frame; a barrel accommodated in the accommodating space and elastic members made of memory alloys and configured to drive the first supporting frame to move in a first direction with respect to the base body, drive the third supporting frame and the second supporting frame to move in a second direction with respect to the first supporting frame and drive the barrel to move in a direction of its optical axis. Any two of the first direction, the second direction and the direction of the optical axis are perpendicular to each other.

Abstract: The present disclosure discloses a method for forming a silica gel diaphragm and a silica gel diaphragm prepared using the method. The method for forming a silica gel diaphragm includes at least the following steps: step S1: providing a hot pressing mold, and placing at least a dome as an embedment into the hot pressing mold; step S2: injecting liquid silica gel into the hot pressing mold; and step S3: molding the liquid silica gel via hot pressing so as to obtain a silica gel membrane which is at least connected with the dome. The method for forming a silica gel diaphragm provided by the present disclosure is easy to conduct and the formed silica gel diaphragm has good performance.

Abstract: The present disclosure provides a lens driving apparatus comprising: a base comprising insulated first and second conductive terminals; a supporting frame provided with third conductive terminal electrically connected to second conductive terminal; a barrel comprising insulated first and second conductive wires; and elastic members made of memory alloys and comprising first and second elastic members. The first elastic member has one end fixed to supporting frame and electrically connected to third conductive terminal and another end fixed to barrel and electrically connected to first conductive wire to form current loop for driving barrel to move in positive or negative direction of optical axis. The second elastic member has one end fixed to base and electrically connected to first conductive terminal, and another end fixed to barrel and electrically connected to second conductive wire to form current loop for driving barrel to move in negative or positive direction of optical axis.

Abstract: The present disclosure provides a lens driving apparatus. The lens driving apparatus includes a base, a barrel, two elastic members sandwiched between the barrel and the base, and a conductive wire connecting the two elastic members to form a current loop with the two elastic members. The base includes a pedestal and a conductive terminal embedded in the pedestal and electrically connected to outside. The two elastic members are electrically connected with the conductive terminal for driving the barrel to reciprocate in a direction of an optical axis. At least one of the two elastic members is made of memory alloys.

Abstract: The present disclosure provides a lens driving apparatus. The lens driving apparatus includes: a base; a first supporting frame supported by the base body; a second supporting frame supported by the first supporting frame; a third supporting frame covering and fixed to the second supporting frame and enclosing an accommodating space together with the second supporting frame; a barrel accommodated in the accommodating space and elastic members made of memory alloys and configured to drive the first supporting frame to move in a first direction with respect to the base body, drive the third supporting frame and the second supporting frame to move in a second direction with respect to the first supporting frame and drive the barrel to move in a direction of its optical axis. Any two of the first direction, the second direction and the direction of the optical axis are perpendicular to each other.

Abstract: A sound generating device is provided in the present disclosure. The device includes a frame, a vibrating system, a magnetic system, a terminal fixed to the frame, a edge and a conductive pad. The vibrating system includes a diaphragm and a coil driving the vibration of the diaphragm, and the coil is electrically connected with the terminal. The magnetic circuit system includes a yoke, the main magnet and two sub-magnets at the opposite sides of the main magnet are separately made of the insulating material and respectively set on the opposite sides of the main magnet. The conductive pad is embedded in the edge, and the two edges are interlaced at interlaced intervals with the two sub magnets. The side of the edge is connected to the insulation of the frame, and the other side of the edge is insulated and fixed with the one end of the diaphragm which is far away from the coil, and the coil and the terminal are electrically connected with the conductive pad.

Abstract: The present disclosure discloses a method for forming a silica gel diaphragm and a silica gel diaphragm prepared using the method. The method for forming a silica gel diaphragm includes at least the following steps: step S1: providing a hot pressing mould, and placing at least a dome as an embedment into the hot pressing mould; step S2: injecting liquid silica gel into the hot pressing mould; and step S3: molding the liquid silica gel via hot pressing so as to obtain a silica gel membrane which is at least connected with the dome. The method for forming a silica gel diaphragm provided by the present disclosure is easy to conduct and the formed silica gel diaphragm has good performance.

Abstract: An electromagnetic transducer is disclosed. The transducer includes a bracket, a magnetic circuit part receiving in the bracket and having a weight, a voice generating part actuated by the magnetic circuit part for generating sound, the magnetic circuit part sandwiched by two spring-plates for vibrating along a direction. The weight further includes a plurality of supporting protrusions for anchoring the two spring-plates, respectively. Each of the two spring-plates has a ring plane lamina and two helical wound springs extending inwardly from the ring plane lamina.

Abstract: An electromagnetic transducer is disclosed. The transducer includes a bracket, a magnetic circuit part receiving in the bracket and having a weight, a voice generating part actuated by the magnetic circuit part for generating sound, the magnetic circuit part sandwiched by two spring-plates for vibrating along a direction. The weight further includes a plurality of supporting protrusions for anchoring the two spring-plates, respectively. Each of the two spring-plates has a ring plane lamina and two helical wound springs extending inwardly from the ring plane lamina.