# US 12,181,688 B2 · Lens piece, lens assembly and imaging device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,688 B2 - Document ID: US12181688B2 - Status: Granted - Kind: B2 - Application number: 17/737,488 - Filed: 2022-05-05 - Published: 2022-08-18 - Granted: 2024-12-31 - Earliest claimed: 2020-02-13 - Assignees: Pixart Imaging Inc. - Applicants: PixArt Imaging Inc. - Inventors: Wan-Piang Lim; Sai-Mun Lee - Web page: https://patentgrep.com/patent/US12181688B2 ## CPC - G02B 27/62: Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems - G02B 7/025: {using glue} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract There is provided a lens piece and a lens assembly as well as an imaging device including the same. The lens assembly includes the lens piece and a lens barrel. The lens piece has a wing extending transversely from a lens sidewall. The lens barrel carries the lens piece, and includes a reservoir corresponding to the wing of the lens piece for containing adhesive. ## Claims ### Claim 1 A lens piece, comprising: a lens body, having a cylindrical shape and comprising a lens sidewall parallel to an optical axis of the lens piece; and a wing, transversely protruding from the lens sidewall of the lens body, and comprising a breach opened at a front end of the wing, wherein the lens body further comprises a lens top surface connecting to the lens sidewall, the lens top surface has an active area for light to pass through, and a light incident plane of the active area has a same height as the lens top surface. ### Claim 2 (depends on 1) The lens piece as claimed in claim 1, wherein the lens top surface is covered with a lens mask outside the active area to prevent the light from entering the lens body via a region outside the active area. ### Claim 3 (depends on 1) The lens piece as claimed in claim 1, wherein the lens body and the wing are formed integrally. ### Claim 4 (depends on 1) The lens piece as claimed in claim 1, wherein the breach has a semicircle shape. ### Claim 5 A lens assembly, comprising: a lens piece, comprising: a lens body, having a cylindrical shape and comprising a lens sidewall parallel to an optical axis of the lens piece; and a wing, transversely protruding from the lens sidewall of the lens body, and comprising a breach opened at a front end of the wing; and a lens barrel, carrying the lens piece and comprising a reservoir corresponding to the wing of the lens piece for containing adhesive. ### Claim 6 (depends on 5) The lens assembly as claimed in claim 5, wherein the lens barrel further comprises a ring wall encompassing the lens sidewall, and a front end of the wing is attached to the ring wall or has a predetermined distance from the ring wall. ### Claim 7 (depends on 5) The lens assembly as claimed in claim 5, wherein the wing comprises a breach parallel to the optical axis, and the reservoir of the lens barrel is opposite to the breach. ### Claim 8 (depends on 5) The lens assembly as claimed in claim 5, wherein the wing comprises at least one through hole parallel to the optical axis, and the reservoir of the lens barrel is opposite to the at least one through hole. ### Claim 9 (depends on 5) The lens assembly as claimed in claim 5, wherein the lens body further comprises a lens top surface connecting to the lens sidewall, the lens top surface has an active area for light to pass through, and a light incident plane of the active area has a same height or is lower than the lens top surface. ### Claim 10 (depends on 9) The lens assembly as claimed in claim 9, wherein the lens top surface is covered with a lens mask outside the active area to prevent the light from entering the lens body from a region outside the active area. ### Claim 11 (depends on 5) The lens assembly as claimed in claim 5, wherein the lens body and the wing are formed integrally and have same material. ### Claim 12 An imaging device, comprising: a substrate; a sensor, arranged on the substrate; a lens piece, comprising: a lens body, having a cylindrical shape and comprising a lens sidewall parallel to an optical axis of the lens piece; and a wing, transversely protruding from the lens sidewall of the lens body, and comprising a breach opened at a front end of the wing; and a lens barrel, arranged on the substrate to carry the lens piece, and comprising: a reservoir, corresponding to the wing of the lens piece for containing adhesive; and an accommodation space, for accommodating the sensor therein. ### Claim 13 (depends on 12) The imaging device as claimed in claim 12, wherein the lens barrel further comprises a ring wall encompassing the lens sidewall, and a front end of the wing is attached to the ring wall or has a predetermined distance from the ring wall. ### Claim 14 (depends on 12) The imaging device as claimed in claim 12, wherein the wing comprises a breach parallel to the optical axis, and the reservoir of the lens barrel is opposite to the breach. ### Claim 15 (depends on 12) The imaging device as claimed in claim 12, wherein the wing comprises at least one through hole parallel to the optical axis, and the reservoir of the lens barrel is opposite to the at least one through hole. ### Claim 16 (depends on 12) The imaging device as claimed in claim 12, wherein the lens body further comprises a lens top surface connecting to the lens sidewall, the lens top surface has an active area for light to pass through, and a light incident plane of the active area has a same height or is lower than the lens top surface. ### Claim 17 (depends on 16) The imaging device as claimed in claim 16, wherein the lens top surface is covered with a lens mask outside the active area to prevent the light from entering the lens body from a region outside the active area. ### Claim 18 (depends on 12) The imaging device as claimed in claim 12, wherein the lens body and the wing are formed integrally and have same material. ### Claim 19 A lens piece, comprising: a lens body, having a cylindrical shape and comprising a lens sidewall parallel to an optical axis of the lens piece; and a wing, transversely protruding from the lens sidewall of the lens body, and comprising a breach opened at a front end of the wing, wherein the lens body further comprises a lens top surface connecting to the lens sidewall, the lens top surface has an active area for light to pass through, and a light incident plane of the active area is lower than the lens top surface.