-
公开(公告)号：US20250155680A1
公开(公告)日：2025-05-15
申请号：US18398838
申请日：2023-12-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting YEH , Cheng-Yu TSAI
Abstract: An optical photographing lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The object-side surface of the first lens element is convex in a paraxial region thereof. The second lens element has positive refractive power. The third lens element has negative refractive power. The image-side surface of the third lens element is concave in a paraxial region thereof. The image-side surface of the seventh lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the seven lens elements has at least one inflection point.
-
公开(公告)号：US20240264410A1
公开(公告)日：2024-08-08
申请号：US18432213
申请日：2024-02-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting YEH , Cheng-Yu TSAI
CPC classification number: G02B13/0045 , G02B9/64
Abstract: A photographing system lens assembly includes eight lens elements, the eight lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side.
-
3.发明公开公开(公告)号：US20240118462A1
公开(公告)日：2024-04-11
申请号：US18480584
申请日：2023-10-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Cheng-Yu TSAI , Chun-Hung TENG
CPC classification number: G02B5/0247 , G02B1/115 , G02B5/0294 , G02B5/22
Abstract: A bokeh filter membrane, which is disposed on a surface of a substrate, includes a gradient thickness absorbing membrane and an anti-reflection membrane. The anti-reflection membrane includes a high-and-low refraction membrane and a gradient refraction membrane. A transmittance of the substrate at a center thereof is greater than a transmittance of the substrate at a peripheral region thereof. The high-and-low refraction membrane includes a first high-and-low refraction membrane and a second high-and-low refraction membrane, the gradient thickness absorbing membrane is farther away from the substrate than the first high-and-low refraction membrane, the second high-and-low refraction membrane is farther away from the substrate than the gradient thickness absorbing membrane, and the gradient refraction membrane is farther away from the substrate than the second high-and-low refraction membrane. The gradient refraction membrane includes a plurality of pores. A main material of the gradient refraction membrane is metal oxide.
-
公开(公告)号：US20250004250A1
公开(公告)日：2025-01-02
申请号：US18670052
申请日：2024-05-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： I-Chieh CHEN , Cheng-Yu TSAI
Abstract: An image capturing system lens assembly includes eight lens elements, the eight lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The fourth lens element has negative refractive power. The image-side surface of the eighth lens element is concave in a paraxial region thereof, and the image-side surface of the eighth lens element includes at least one inflection point.
-
公开(公告)号：US20240385415A1
公开(公告)日：2024-11-21
申请号：US18208723
申请日：2023-06-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting YEH , Cheng-Yu TSAI
Abstract: A photographing lens assembly includes five lens elements which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each of the five lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The third lens element has negative refractive power, the object-side surface of the third lens element is convex in a paraxial region thereof, and the image-side surface of the third lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the photographing lens assembly is aspheric.
-
Patent Agency Ranking
6.发明公开公开(公告)号：US20240111138A1
公开(公告)日：2024-04-04
申请号：US18475333
申请日：2023-09-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Shih-Han CHEN , Chun-Yen CHEN , Cheng-Yu TSAI , Chun-Hung TENG
CPC classification number: G02B17/08 , G02B13/002 , G03B17/17
Abstract: A catadioptric optical membrane, which is disposed on a surface of a substrate, includes a reflection membrane and a matting membrane. The reflection membrane is disposed on an effective optical path area of the substrate and includes a reflection metal membrane and a reflection oxidation membrane. The reflection oxidation membrane includes a first reflection oxidation membrane and a second reflection oxidation membrane. The reflection metal membrane is farther away from the substrate than the first reflection oxidation membrane. The second reflection oxidation membrane is farther away from the substrate than the reflection metal membrane. The matting membrane is disposed on a non-effective optical path area of the substrate. The matting membrane includes a deep-color membrane and a first anti-reflection membrane. The deep-color membrane includes a deep-color metal membrane and a deep-color oxidation membrane. The deep-color membrane is farther away from the substrate than the first anti-reflection membrane.
-
公开(公告)号：US20230314768A1
公开(公告)日：2023-10-05
申请号：US18167938
申请日：2023-02-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yi-Hsiang CHUANG , Hsin-Hsuan HUANG , Cheng-Yu TSAI
IPC: G02B13/00
CPC classification number: G02B13/004
Abstract: An imaging system lens assembly includes four lens elements, the four lens elements are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element and a fourth lens element. Each of the four lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The second lens element has negative refractive power, the object-side surface of the second lens element is concave in a paraxial region thereof. The object-side surface of the third lens element is convex in a paraxial region thereof, the image-side surface of the third lens element is concave in a paraxial region thereof.
-
公开(公告)号：US20250004248A1
公开(公告)日：2025-01-02
申请号：US18232733
申请日：2023-08-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Wei CHEN , Kuan-Ting YEH , Cheng-Yu TSAI
Abstract: An optical photographing lens assembly includes six lens elements which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The fourth lens element has positive refractive power. The image-side surface of the fourth lens element is convex in a paraxial region thereof. The image-side surface of the fifth lens element is concave in a paraxial region thereof. The sixth lens element has negative refractive power. The object-side surface of the sixth lens element is convex in a paraxial region thereof.
-
公开(公告)号：US20240126045A1
公开(公告)日：2024-04-18
申请号：US17994237
申请日：2022-11-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting YEH , Cheng-Yu TSAI
Abstract: An imaging system lens assembly includes, in order from an object side to an image side: a first lens element, a second lens element, a third lens element and a fourth lens element. Each of the four lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has positive refractive power. The object-side surface of the third lens element is convex in a paraxial region thereof.
-
公开(公告)号：US20240118526A1
公开(公告)日：2024-04-11
申请号：US18474335
申请日：2023-09-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Shih-Han CHEN , Cheng-Yu TSAI , Hsin-Hsuan HUANG
CPC classification number: G02B17/0856 , G02B13/0045
Abstract: An imaging system lens assembly includes a first lens group and a second lens group. The first lens group includes a first catadioptric lens element and a second catadioptric lens element, the second lens group includes at least one lens element. Each of an object-side surface and an image-side surface of the first catadioptric lens element and the second catadioptric lens element includes a central region and a peripheral region. The peripheral region of the object-side surface of the first catadioptric lens element includes a first refracting surface. The peripheral region of the image-side surface of the second catadioptric lens element includes a first reflecting surface. The central region of the object-side surface of the first catadioptric lens element includes a second reflecting surface. The central region of the image-side surface of the second catadioptric lens element includes a last refracting surface.
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.015 seconds)
