# US 2026/0093085 A1 · Lens barrel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0093085 A1 - Document ID: US20260093085A1 - Status: Published application - Kind: A1 - Application number: 19/334,802 - Filed: 2025-09-20 - Published: 2026-04-02 - Earliest claimed: 2024-09-27 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Takahiro MATSUKAWA; Masayuki SHODAI; Masayuki NAGAHARA - Web page: https://patentgrep.com/patent/US20260093085A1 ## CPC - G02B 7/021: {for more than one lens} - G02B 7/023: {permitting adjustment} - G02B 27/646: {compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A lens barrel 10 is provided with a lens unit holding frame 27, a lens unit 25, an adjusting screw 24, and an anti-sinking member 23. The lens unit 25 is attached to the lens unit holding frame 27. The adjusting screw 24 restricts movement of the lens unit 25 in a direction away from the lens unit holding frame 27 in the optical axis direction by means of a screw head 24b, and adjusts the tilt of the lens unit 25 with respect to the lens unit holding frame 27. The anti-sinking member 23 is fixed to the lens unit 25, and is provided at a position where it makes contact with the screw head 24b of the adjusting screw 24 in the optical axis direction. ## Claims ### Claim 1 A lens barrel, comprising: a substantially cylindrical reference frame; a lens frame that holds a lens and is attached to the reference frame; a fastening member having a threaded portion that threads into the reference frame, and a screw head provided on an opposite side from the threaded portion, in which the screw head is configured to restrict movement of the lens frame in a direction away from the reference frame in an optical axis direction, and is configured to adjust a tilt of the lens frame relative to the reference frame by changing the threaded length of the threaded portion, and an anti-sinking member that is fixed to the lens frame and is provided at a position where the anti-sinking member makes contact with part of the fastening member in the optical axis direction. ### Claim 2 (depends on 1) The lens barrel according to claim 1, further comprising a biasing member that is provided between the reference frame and the lens frame and is configured to apply a biasing force that biases the lens frame in the optical axis direction relative to the reference frame. ### Claim 3 (depends on 1) The lens barrel according to claim 1, wherein the lens frame and the anti-sinking member are provided as separate members. ### Claim 4 (depends on 1) The lens barrel according to claim 1, wherein the anti-sinking member has a hole into which is inserted a jig for adjusting the tilt of the lens frame. ### Claim 5 (depends on 1) The lens barrel according to claim 1, wherein the lens frame and the anti-sinking member are provided integrally as a single unit. ### Claim 6 (depends on 5) The lens barrel according to claim 5, wherein the lens frame has a through-hole into which the fastening member is inserted in the optical axis direction and in which an opening is formed in a circumferential direction, and a restricting portion that is disposed near the through-hole and engages with part of the fastening member when the lens frame rotates in the circumferential direction in a state in which the fastening member has been inserted into the through-hole, thereby restricting movement of the fastening member in the optical axis direction. ### Claim 7 (depends on 1) The lens barrel according to claim 1, wherein the anti-sinking member is disposed so as to cover the screw head in the optical axis direction. ### Claim 8 (depends on 1) The lens barrel according to claim 1, wherein the lens frame makes contact with the screw head at a surface on an opposite side from the reference frame in the optical axis direction. ### Claim 9 (depends on 2) The lens barrel according to claim 2, wherein the biasing member is a spiral spring member, and the fastening member is threaded into the reference frame in a state in which the threaded portion has been inserted along a central axis of the biasing member. ### Claim 10 (depends on 2) The lens barrel according to claim 2, wherein a plurality sets of the biasing member and the fastening member are provided in a circumferential direction centered on an optical axis. ### Claim 11 (depends on 10) The lens barrel according to claim 10, wherein a plurality of the biasing members and fastening members are provided at substantially equal angular intervals in the circumferential direction centered on the optical axis.