# US 8,786,763 B2 · Device for transporting optical element and photographing apparatus including the device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,786,763 B2 - Document ID: US8786763B2 - Status: Granted - Kind: B2 - Application number: 13/546,175 - Filed: 2012-07-11 - Published: 2013-05-23 - Granted: 2014-07-22 - Earliest claimed: 2011-11-18 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Young-jae Hwang; Kwang-seok Byon; Hyoung-wook Cho - Inventors: Young-jae Hwang; Kwang-seok Byon; Hyoung-wook Cho - Web page: https://patentgrep.com/patent/US8786763B2 ## CPC - G03B 3/02: moving lens along baseboard - G03B 3/10: Power-operated focusing - G03B 2205/0069: using electromagnetic actuators, e.g. voice coils - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract A device for transporting an optical element so that inclination of the optical element is substantially prevented to more precisely control the position of the optical element, including: a base; a transporting member that supports the optical element and is movably disposed along a predetermined direction with respect to the base; a magnet extending from the base along a movement direction of the transporting member; a coil that is coupled to the transporting member and generates a magnetic field when an electrical signal is applied thereto; and a magnetic substrate that is disposed on the transporting member and applies a force to the transporting member toward the magnet due an action of a magnetic force between the magnet and the magnetic substrate. ## Claims ### Claim 1 A device for transporting an optical element, the device comprising: a base; a transporting member that supports the optical element and is movably disposed along a predetermined direction with respect to the base; a magnet extending from the base along a movement direction of the transporting member; a coil that is coupled to the transporting member and generates a magnetic field when an electrical signal is applied thereto; a magnetic substrate that is disposed on the transporting member and applies a force to the transporting member toward the magnet due to an action of a magnetic force between the magnet and the magnetic substrate; and a yoke portion that extends from the base to face the magnet, wherein the transporting member is movably disposed along an extension direction of the yoke portion outside of the yoke portion, and the coil is coupled to the transporting member to surround the yoke portion. ### Claim 2 (depends on 1) The device of claim 1, wherein the magnetic substrate is disposed in a surface of the transporting member facing the magnet. ### Claim 3 (depends on 1) The device of claim 1, wherein the magnetic substrate is disposed adjacent to the coil of the transporting member. ### Claim 4 (depends on 1) The device of claim 1, wherein a groove is formed in a surface of the transporting member facing the magnet, and the magnetic substrate is disposed in the groove. ### Claim 5 (depends on 1) The device of claim 1, wherein the magnetic substrate includes a metal selected from the group consisting of iron, nickel, and cobalt. ### Claim 6 (depends on 1) The device of claim 1, wherein the yoke portion is a first yoke portion of a yoke, the device further comprising second yoke portion that is attached to the magnet to support the magnet. ### Claim 7 (depends on 1) The device of claim 1, wherein the base includes a guide that movably supports the transporting member in a straight direction with respect to the base. ### Claim 8 (depends on 7) The device of claim 7, further comprising a ball bearing that movably supports the transporting member with respect to the base between the base and the transporting member. ### Claim 9 (depends on 8) The device of claim 8, wherein the transporting member has a groove, the ball bearing is rotatably inserted into the groove, and the base has a guide groove, which corresponds to the groove in the transporting member and guides a movement of the transporting member. ### Claim 10 A photographing apparatus comprising: a base; a transporting member that supports an optical element and is movably disposed along a predetermined direction with respect to the base; an imaging device that is coupled to the base and converts light transmitted through the optical element into an electrical signal; a magnet extending from the base along a movement direction of the transporting member; a coil that is coupled to the transporting member and generates a magnetic field when an electrical signal is applied thereto; a magnetic substrate that is disposed on the transporting member and applies a force to the transporting member toward the magnet due to an action of a magnetic force between the magnet and the magnetic substrate; a yoke portion that extends from the base to face the magnet, wherein the transporting member is movably disposed along an extension direction of the yoke portion outside of the yoke portion, and the coil is coupled to the transporting member to surround the yoke portion. ### Claim 11 (depends on 10) The photographing apparatus of claim 10, wherein the magnetic substrate is disposed in a surface of the transporting member facing the magnet. ### Claim 12 (depends on 10) The photographing apparatus of claim 10, wherein the magnetic substrate is disposed adjacent to the coil of the transporting member. ### Claim 13 (depends on 10) The photographing apparatus of claim 10, wherein a groove is formed in a surface of the transporting member facing the magnet, and the magnetic substrate is disposed in the groove. ### Claim 14 (depends on 10) The photographing apparatus of claim 10, wherein the transporting member is movably disposed along an optical axis of the optical element with respect to the base. ### Claim 15 (depends on 10) The photographing apparatus of claim 10, wherein the yoke portion is a first portion of a yoke, the photographing apparatus further comprising second yoke portion that is attached to the magnet to support the magnet. ### Claim 16 (depends on 10) The photographing apparatus of claim 10, wherein the base includes a guide that movably supports the transporting member in a straight direction with respect to the base. ### Claim 17 (depends on 16) The photographing apparatus of claim 16, further comprising a ball bearing that movably supports the transporting member with respect to the base between the base and the transporting member.