ZOOM DRIVING ACTUATOR AND POSITION CONTROL METHOD FOR ZOOM DRIVING

• Main Authors: YEON, Je Seung, PARK, Chul Soon, LEE, Byung Cheol, CHO, Hyeon Ik, KANG, In Su
• Format: Patent
• Language: English; French; Korean
• Published: 31.03.2022
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

A zoom driving actuator according to the present invention comprises: a first carrier to which a first lens is mounted and which moves in an optical-axis direction; a second carrier to which a second lens is mounted and which moves in the optical-axis direction above or below the first carrier with respect to the optical-axis direction; a housing in which the first carrier and the second carrier are received; a first magnet which is mounted to the first carrier; a second magnet which is mounted to the second carrier; a first coil part which is provided in the housing and faces the first magnet; a second coil part which is provided in the housing and faces the second magnet; and balls which are disposed between the housing and the first carrier and between the housing and the second carrier, respectively. Selon la présente invention, un actionneur d'entraînement de zoom comprend : un premier support auquel une première lentille est montée et qui se déplace dans une direction d'axe optique; un second support sur lequel une seconde lentille est montée et qui se déplace dans la direction de l'axe optique au-dessus ou au-dessous du premier support par rapport à la direction de l'axe optique; un boîtier dans lequel le premier support et le second support sont logés; un premier aimant qui est monté sur le premier support; un second aimant qui est monté sur le second support; une première partie de bobine qui est disposée dans le boîtier et qui fait face au premier aimant; une seconde partie de bobine qui est disposée dans le boîtier et qui fait face au second aimant; et des billes qui sont disposées entre le boîtier et le premier support et entre le boîtier et le second support, respectivement. 본 발명에 의한 줌 구동 액추에이터는 제1렌즈가 탑재되며 광축 방향으로 이동하는 제1캐리어; 제2렌즈가 탑재되며 광축 방향을 기준으로 상기 제1캐리어의 상부 또는 하부에서 광축 방향으로 이동하는 제2캐리어; 상기 제1캐리어 및 제2캐리어를 수용하는 하우징; 상기 제1캐리어에 장착되는 제1마그네트; 상기 제2캐리어에 장착되는 제2마그네트; 상기 하우징에 구비되며 상기 제1마그네트와 대면하는 제1코일부; 상기 하우징에 구비되며 상기 제2마그네트와 대면하는 제2코일부; 및 상기 하우징과 상기 제1캐리어 사이 그리고 상기 하우징과 상기 제2캐리어 사이에 각각 배치되는 볼을 포함하는 것을 특징으로 한다.