# US 2019/0317253 A1 · Optical image lens assembly, imaging apparatus and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0317253 A1 - Document ID: US20190317253A1 - Status: Published application - Kind: A1 - Application number: 16/378,709 - Filed: 2019-04-09 - Published: 2019-10-17 - Earliest claimed: 2018-04-11 - Assignees: Largan Precision Co., Ltd. - Applicants: Largan Precision Co., Ltd. - Inventors: Yeo-Chih HUANG; Pei-Chi CHANG; Chun-Hung TENG - Web page: https://patentgrep.com/patent/US20190317253A1 ## CPC - G02B 5/003: {Light absorbing elements} - G02B 5/208: {for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation} - G02B 5/22: Absorbing filters {(G02B5/201 - G02B5/208 take precedence)} - G02B 9/60: having five components only - G02B 9/62: having six components only - G02B 13/0045: {having five or more lenses} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract An optical image lens assembly includes a plurality of optical lens elements. The optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. The plastic optical lens elements are formed by an injection molding method and include at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element includes at least one defined-wavelength light absorbent. ## Claims ### Claim 1 An optical image lens assembly, comprising: a plurality of optical lens elements comprising a plurality of plastic optical lens elements having refractive power and aspheric surfaces; wherein the plastic optical lens elements are formed by an injection molding method and comprise at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element comprises at least one defined-wavelength light absorbent; wherein the defined-wavelength light absorbing optical lens element has an average transmittance larger than 50% in a green visible light region, and the defined-wavelength light absorbing optical lens element has an average transmittance smaller than 50% in a defined-wavelength region; wherein a transmitted distance of a chief ray passing through the defined-wavelength light absorbing optical lens element between a central field of view to a field of view in 1.0 region in an imaging region of the optical image lens assembly is CP, a transmitted distance of the chief ray passing through the defined-wavelength light absorbing optical lens element in the central field of the optical image lens assembly is CP0, and the following condition is satisfied: 0.5≤CP/CP0≤2.0. ### Claim 2 (depends on 1) The optical image lens assembly of claim 1, wherein the defined-wavelength light absorbing optical lens element is made of a thermoplastic material, an average transmittance in a wavelength range of 380 nm-430 nm of all of the defined-wavelength light absorbing optical lens elements is T3843, an average transmittance in a wavelength range of 520 nm-570 nm of all of the defined-wavelength light absorbing optical lens elements is T5257, and the following conditions are satisfied: T3843≤50%; and T5257≥85%. ### Claim 3 (depends on 2) The optical image lens assembly of claim 2, wherein an Abbe number of the defined-wavelength light absorbing optical lens element is V, and the following condition is satisfied: 50.0≤V. ### Claim 4 (depends on 1) The optical image lens assembly of claim 1, wherein the transmitted distance of the chief ray passing through the defined-wavelength light absorbing optical lens element between the central field of view to the field of view in 1.0 region in the imaging region of the optical image lens assembly is CP, the transmitted distance of the chief ray passing through the defined-wavelength light absorbing optical lens element in the central field of the optical image lens assembly is CP0, and the following condition is satisfied: 0.8≤CP/CP0≤1.2. ### Claim 5 (depends on 4) The optical image lens assembly of claim 4, wherein the defined-wavelength light absorbing optical lens element is made of a thermoplastic material, an average transmittance in a wavelength range of 380 nm-430 nm of all of the defined-wavelength light absorbing optical lens elements is T3843, an average transmittance in a wavelength range of 520 nm-570 nm of all of the defined-wavelength light absorbing optical lens elements is T5257, and the following conditions are satisfied: T3843≤50%; and T5257≥85%. ### Claim 6 (depends on 5) The optical image lens assembly of claim 5, wherein an Abbe number of the defined-wavelength light absorbing optical lens element is V, and the following condition is satisfied: 50.0≤V. ### Claim 7 (depends on 6) The optical image lens assembly of claim 6, wherein a wavelength having a 50% transmittance and an increasing trend in a wavelength range of 300 nm-500 nm of the defined-wavelength light absorbing optical lens element is SWuT50, and the following condition is satisfied: 400 nm≤SWuT50. ### Claim 8 (depends on 6) The optical image lens assembly of claim 6, wherein a maximum absorbance in a wavelength range of 300 nm-500 nm of the defined-wavelength light absorbing optical lens element is A3050Mx, a minimum absorbance in a wavelength range of 400 nm-700 nm of the defined-wavelength light absorbing optical lens element is A4070Mn, and the following condition is satisfied: A3050Mx/A4070Mn≥30. ### Claim 9 (depends on 6) The optical image lens assembly of claim 6, wherein a bandwidth having an absorbance larger than 2.0 in a wavelength range of 300 nm-450 nm of the defined-wavelength light absorbing optical lens element is BWA3045.2, and the following condition is satisfied: BWA3045.2≥30 nm. ### Claim 10 (depends on 6) The optical image lens assembly of claim 6, wherein a wavelength having a maximum absorbance in a wavelength range of 300 nm-500 nm of the defined-wavelength light absorbing optical lens element is WA3050Mx, and the following condition is satisfied: 300 nm≤WA3050Mx≤420 nm. ### Claim 11 (depends on 1) An image capturing apparatus, comprising: the optical image lens assembly of claim 1; and an image sensor disposed on an image plane of the optical image lens assembly. ### Claim 12 (depends on 11) An electronic device, which is a mobile device, comprising: the image capturing apparatus of claim 11. ### Claim 13 An optical image lens assembly, comprising: a plurality of optical lens elements comprising a plurality of plastic optical lens elements having refractive power and aspheric surfaces; wherein the plastic optical lens elements are formed by an injection molding method and comprise at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element comprises at least one defined-wavelength light absorbent; wherein the defined-wavelength light absorbing optical lens element has an average transmittance larger than 50% in at least one of a blue visible light region, a green visible light region and a red visible light region; wherein the defined-wavelength light absorbing optical lens element has an average transmittance smaller than 70% in a defined-wavelength region, and a bandwidth having a transmittance smaller than 70% of the defined-wavelength light absorbing optical lens element is smaller than 200 nm; wherein a transmitted distance of a chief ray passing through the defined-wavelength light absorbing optical lens element between a central field of view to a field of view in 1.0 region in an imaging region of the optical image lens assembly is CP, a transmitted distance of the chief ray passing through the defined-wavelength light absorbing optical lens element in the central field of the optical image lens assembly is CP0, and the following condition is satisfied: 0.8≤CP/CP0≤1.2. ### Claim 14 (depends on 13) The optical image lens assembly of claim 13, wherein a bandwidth having a transmittance smaller than 70% in a wavelength range of 400 nm-1100 nm of the defined-wavelength light absorbing optical lens element is BWT40110.7, and the following condition is satisfied: 10 nm≤BWT40110.7≤200 nm. ### Claim 15 (depends on 14) The optical image lens assembly of claim 14, wherein an Abbe number of the defined-wavelength light absorbing optical lens element is V, and the following condition is satisfied: 50.0≤V. ### Claim 16 (depends on 15) The optical image lens assembly of claim 15, wherein a bandwidth having a transmittance smaller than 50% in a wavelength range of 400 nm-1100 nm of the defined-wavelength light absorbing optical lens element is BWT40110.5, and the following condition is satisfied: 0 nm