# US 10,120,166 B2 · Mobile device and optical imaging lens thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,120,166 B2 - Document ID: US10120166B2 - Status: Granted - Kind: B2 - Application number: 15/332,868 - Filed: 2016-10-24 - Published: 2017-05-11 - Granted: 2018-11-06 - Earliest claimed: 2012-11-02 - Assignees: Genius Electronic Optical Co., Ltd. - Applicants: Genius Electronic Optical Co., Ltd. - Inventors: Kuo-Wen Chang; Poche Lee; Wei-Yu Lo - Web page: https://patentgrep.com/patent/US10120166B2 ## CPC - G02B 13/0045: {having five or more lenses} - G02B 5/208: {for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation} - G02B 7/021: {for more than one lens} - G02B 9/60: having five components only - G02B 27/0025: {for optical correction, e.g. distorsion, aberration} - G03B 13/32: Means for focusing - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - G02B 3/04: with continuous faces that are rotationally symmetrical but deviate from a true sphere {, e.g. so called "aspheric" lenses} - G02B 5/005: {Diaphragms (for cameras G03B9/02)} - G02B 13/18: with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Though controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened. ## Claims ### Claim 1 An optical imaging lens, sequentially from an object side to an image side, comprising an aperture stop, first, second, third, fourth and fifth lens elements, each of the first, second, third, fourth and fifth lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein: the image-side surface of the first lens element comprises a concave portion in a vicinity of a periphery of the first lens element; the second lens element is made of a plastic material; the third lens element is made of a plastic material, has negative refracting power, and the object-side surface of the third lens element has a concave portion in a vicinity of an optical axis; the object-side surface of the fourth lens element comprises a concave portion in a vicinity of a periphery of the fourth lens element; the object-side surface of the fifth lens element comprises a concave portion in a vicinity of the optical axis; the fifth lens element is made of a plastic material; and the optical imaging lens as a whole has only the five lens elements having refracting power, wherein an effective focal length of the optical imaging lens is EFL, a largest air gap among the four air gaps from the first lens element to the fifth lens element along the optical axis is Gmax, and EFL and Gmax satisfy the equation: 7.50≤EFL/Gmax. ### Claim 2 (depends on 1) The optical imaging lens according to claim 1, wherein a central thickness of the first lens element along the optical axis is CT1, and a central thickness of the fourth lens element along the optical axis is CT4, an air gap between the third lens element and the fourth lens element along the optical axis is AGL34, and CT1, CT4 and AGL34 satisfy the equation: (CT1+CT4)/AGL34≤6.50. ### Claim 3 (depends on 2) The optical imaging lens according to claim 2, wherein a sum of all four air gaps from the first lens element to the fifth lens element along the optical axis is AAG, and AAG and CT4 satisfy the equation: AAG/CT4≤2.40. ### Claim 4 (depends on 1) The optical imaging lens according to claim 1, wherein a distance between the object-side surface of the first lens element and an image plane at the optical axis is TTL, an air gap between the fourth lens element and the fifth lens element along the optical axis is AGL45, and TTL and AGL45 satisfy the equation: 10.20≤TTL/AGL45. ### Claim 5 (depends on 1) The optical imaging lens according to claim 1, wherein a sum of thicknesses of all five lens elements along the optical axis is ALT, a central thickness of the fifth lens element along the optical axis is CT5, and ALT and CT5 satisfy the equation: ALT/CT5≤6.90. ### Claim 6 (depends on 1) The optical imaging lens according to claim 1, wherein a sum of all four air gaps from the first lens element to the fifth lens element along the optical axis is AAG, an air gap between the first lens element and the second lens element along the optical axis is AGL12, an air gap between the third lens element and the fourth lens element along the optical axis is AGL34, and AAG, AGL12 and AGL34 satisfy the equation: AAG/(AGL12+AGL34)≤3.40. ### Claim 7 (depends on 1) The optical imaging lens according to claim 1, wherein an air gap between the third lens element and the fourth lens element along the optical axis is AGL34, and EFL and AGL34 satisfy the equation: EFL/AGL34≤17.50. ### Claim 8 (depends on 7) The optical imaging lens according to claim 7, wherein a largest thickness among the five lens elements along the optical axis is Tmax, an air gap between the fourth lens element and the fifth lens element along the optical axis is AGL45, and Tmax and AGL45 satisfy the equation: 1.60≤Tmax/AGL45. ### Claim 9 (depends on 1) The optical imaging lens according to claim 1, wherein a distance between the object-side surface of the first lens element and an image plane at the optical axis is TTL, a central thickness of the first lens element along the optical axis is CT1, and TTL and CT1 satisfy the equation: TTL/CT1≤7.60. ### Claim 10 (depends on 1) The optical imaging lens according to claim 1, wherein a sum of thicknesses of all five lens elements along the optical axis is ALT, a smallest thickness among the five lens elements along the optical axis is Tmin, and ALT and Tmin satisfy the equation: ALT/Tmin≤8.50. ### Claim 11 (depends on 1) The optical imaging lens according to claim 1, wherein a central thickness of the first lens element along the optical axis is CT1, a central thickness of the second lens element along the optical axis is CT2, and EFL, CT1 and CT2 satisfy the equation: 4.80≤EFL/(CT1+CT2). ### Claim 12 (depends on 1) The optical imaging lens according to claim 1, wherein a distance between the object-side surface of the first lens element and an image plane at the optical axis is TTL, a central thickness of the first lens element along the optical axis is CT1, a central thickness of the third lens element along the optical axis is CT3, and TTL, CT1 and CT3 satisfy the equation: 4.90≤TTL/(CT1+CT3). ### Claim 13 (depends on 1) The optical imaging lens according to claim 1, wherein a central thickness of the first lens element along the optical axis is CT1, a central thickness of the second lens element along the optical axis is CT2, a central thickness of the fourth lens element along the optical axis is CT4, and CT1, CT2 and CT4 satisfy the equation: 2.80≤(CT1+CT4)/CT4≤4.60. ### Claim 14 (depends on 1) The optical imaging lens according to claim 1, wherein a central thickness of the first lens element along the optical axis is CT1, a central thickness of the fourth lens element along the optical axis is CT4, an air gap between the fourth lens element and the fifth lens element along the optical axis is AGL45, and CT1, CT4 and AGL45 satisfy the equation: 3.30≤(CT1+CT4)/AGL45. ### Claim 15 (depends on 1) The optical imaging lens according to claim 1, wherein a distance between the object-side surface of the first lens element and an image plane at the optical axis is TTL, an air gap between the third lens element and the fourth lens element along the optical axis is AGL34, and TTL, and AGL34 satisfy the equation: TTL/AGL34≤24.50. ### Claim 16 (depends on 15) The optical imaging lens according to claim 15, wherein a central thickness of the second lens element along the optical axis is CT2, a central thickness of the third lens element along the optical axis is CT3, and EFL, CT2 and CT3 satisfy the equation: 5.30≤EFL/(CT2+CT3). ### Claim 17 (depends on 1) The optical imaging lens according to claim 1, wherein an air gap between the third lens element and the fourth lens element along the optical axis is AGL34, and Gmax and AGL34 satisfy the equation: Gmax/AGL34≤2.60. ### Claim 18 (depends on 17) The optical imaging lens according to claim 17, wherein a distance between the object-side surface of the first lens element and an image plane at the optical axis is TTL, a largest thickness among the five lens elements along the optical axis is Tmax, and TTL and Tmax satisfy the equation: 6.70≤TTL/Tmax. ### Claim 19 (depends on 18) The optical imaging lens according to claim 18, wherein a central thickness of the fourth lens element along the optical axis is CT4, an air gap between the second lens element and the third lens element along the optical axis is AGL23, an air gap between the fourth lens element and the fifth lens element along the optical axis is AGL45, and CT4, AGL23 and AGL45 satisfy the equation: 3.10≤(CT4+AGL23)/AGL45.