# US 12,222,470 B2 · Camera optical lens > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,222,470 B2 - Document ID: US12222470B2 - Status: Granted - Kind: B2 - Application number: 17/535,650 - Filed: 2021-11-25 - Published: 2022-06-23 - Granted: 2025-02-11 - Earliest claimed: 2020-12-14 - Assignees: AAC Optics (Suzhou) Co., Ltd. - Applicants: AAC Optics (Suzhou) Co., Ltd. - Inventors: Takayuki Sakaguchi; Yuanshan Cui - Web page: https://patentgrep.com/patent/US12222470B2 ## CPC - G02B 13/0045: {having five or more lenses} - G02B 9/62: having six components only - G02B 13/06: Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes six lenses. An order of the six lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD and CMOS. ## Claims ### Claim 1 A camera optical lens, comprising: six lenses, being sequentially from an object side to an image side, comprising: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power; an object side surface of the third lens is convex in a paraxial region; wherein, a focal length of the camera optical lens is denoted as f, a focal length of the fourth lens is denoted as f4, a focal length of the fifth lens is denoted as f5, a focal length of the sixth lens is denoted as f6, a center curvature radius of an object side surface of the fifth lens is denoted as R9, a center curvature radius of an object side surface of the sixth lens is denoted as R11, a focal length of the third lens is denoted as f3, a center curvature radius of the object side surface of the third lens is denoted as R5, a center curvature radius of an image side surface of the third lens is denoted as R6, an on-axis thickness of the third lens is denoted as d5, a total optical length of the camera optical lens is denoted as TTL, and the camera optical lens satisfies following relationships: −5.00≤f4/f≤−4.00; −1.00≤f5/f6≤−0.50; 1.50≤R9/R11≤4.00; 1.90≤f3/f≤3.98; −2.26≤(R5+R6)/(R5−R6)≤−0.70; 0.05≤d5/TTL≤0.12. ### Claim 2 (depends on 1) The camera optical lens according to claim 1, wherein an object side surface of the first lens is convex in a paraxial region, an image side surface of the first lens is concave in a paraxial region; a focal length of the first lens is denoted as f1, a center curvature radius of the object side surface of the first lens is denoted as R1, a center curvature radius of the image side surface of the first lens is denoted as R2, an on-axis thickness of the first lens is denoted as d1, and the camera optical lens satisfies following relationships: 0.52≤f1/f≤1.64; −3.34≤(R1+R2)/(R1−R2)≤−0.98; 0.04≤d1/TTL≤0.23. ### Claim 3 (depends on 2) The camera optical lens according to claim 2, wherein the camera optical lens satisfies following relationships: 0.84≤f1/f≤1.31; −2.09≤(R1+R2)/(R1−R2)≤−1.22; 0.07≤d1/TTL≤0.18. ### Claim 4 (depends on 1) The camera optical lens according to claim 1, wherein an object side surface of the second lens is convex in a paraxial region, an image side surface of the second lens is concave in a paraxial region; a focal length of the second lens is denoted as f2, a center curvature radius of the object side surface of the second lens is denoted as R3, a center curvature radius of the image side surface of the second lens is denoted as R4, an on-axis thickness of the second lens is denoted as d3, and the camera optical lens satisfies following relationships: −4.80≤f2/f≤−1.04; 0.82≤(R3+R4)/(R3−R4)≤3.44; 0.02≤d3/TTL≤0.10. ### Claim 5 (depends on 4) The camera optical lens according to claim 4, wherein the camera optical lens satisfies following relationships: −3.00≤f2/f≤−1.30; 1.31≤(R3+R4)/(R3−R4)≤2.75; 0.03≤d3/TTL≤0.08. ### Claim 6 (depends on 1) The camera optical lens according to claim 1, wherein an object side surface of the fourth lens is concave in a paraxial region, an image side surface of the fourth lens is convex in a paraxial region; a center curvature radius of the object side surface of the fourth lens is denoted as R7, a center curvature radius of the image side surface of the fourth lens is denoted as R8, an on-axis thickness of the fourth lens is denoted as d7, and the camera optical lens satisfies following relationships: −17.49≤(R7+R8)/(R7−R8)≤−5.38; 0.03≤d7/TTL≤0.11. ### Claim 7 (depends on 6) The camera optical lens according to claim 6, wherein the camera optical lens satisfies following relationships: −10.93≤(R7+R8)/(R7−R8)≤−6.72; 0.05≤d7/TTL≤0.08. ### Claim 8 (depends on 1) The camera optical lens according to claim 1, wherein the object side surface of the fifth lens is convex in a paraxial region, an image side surface of the fifth lens is convex in a paraxial region; a center curvature radius of the image side surface of the fifth lens is denoted as R10, an on-axis thickness of the fifth lens is denoted as d9, and the camera optical lens satisfies following relationships: 0.56≤f5/f≤2.45; −1.98≤(R9+R10)/(R9−R10)≤−0.20; 0.05≤d9/TTL≤0.19. ### Claim 9 (depends on 8) The camera optical lens according to claim 8, wherein the camera optical lens satisfies following relationships: 0.89≤f5/f≤1.96; −1.23≤(R9+R10)/(R9−R10)≤−0.25; 0.08≤d9/TTL≤0.15. ### Claim 10 (depends on 1) The camera optical lens according to claim 1, wherein the object side surface of the sixth lens is convex in a paraxial region, an image side surface of the sixth lens is concave in a paraxial region; a center curvature radius of the image side surface of the sixth lens is denoted as R12, an on-axis thickness of the sixth lens is denoted as d11, and the camera optical lens satisfies following relationships: −6.38≤f6/f≤−0.75; 1.73≤(R11+R12)/(R11−R12)≤9.26; 0.04≤d11/TTL≤0.15. ### Claim 11 (depends on 10) The camera optical lens according to claim 10, wherein the camera optical lens satisfies following relationships: −3.99≤f6/f≤−0.94; 2.76≤(R11+R12)/(R11−R12)≤7.41; 0.06≤d11/TTL≤0.12. ### Claim 12 (depends on 1) The camera optical lens according to claim 1, wherein an image height of the camera optical lens is denoted as IH, and the camera optical lens satisfies a following relationship: TTL/IH≤1.76. ### Claim 13 (depends on 12) The camera optical lens according to claim 12, wherein the camera optical lens satisfies a following relationship: TTL/IH≤1.72. ### Claim 14 (depends on 1) The camera optical lens according to claim 1, wherein a field of view of the camera optical lens is denoted as FOV, the FOV is greater than or equal to 74.69°. ### Claim 15 (depends on 14) The camera optical lens according to claim 14, wherein the FOV is greater than or equal to 76.23°. ### Claim 16 (depends on 1) The camera optical lens according to claim 1, wherein an F number of the camera optical lens is denoted as FNO, the FNO is less than or equal to 2.83. ### Claim 17 (depends on 16) The camera optical lens according to claim 16, wherein the FNO is less than or equal to 2.77. ### Claim 18 (depends on 1) The camera optical lens according to claim 1, wherein a combined focal length of the first lens and the second lens is denoted as f12, and satisfies a following relationship: 0≤f12/f≤3.04.