-
公开(公告)号：US20230244067A1
公开(公告)日：2023-08-03
申请号：US18114751
申请日：2023-02-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Tzu-Chieh KUO
CPC classification number: G02B15/143503 , G02B13/009 , G02B13/0045 , G02B15/143507 , G03B5/00 , G03B30/00 , H04N23/55 , G02B13/0065 , G03B13/20 , G03B2205/0046
Abstract: An image capturing lens system includes three lens groups including five lens elements. The three lens groups are, in order from an object side to an image side: first, second and third lens groups. The five lens elements are, in order from the object side to the image side: first, second, third, fourth and fifth lens elements. The first lens element has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. At least one lens element has an inflection point. A focal length of the image capturing lens system is varied by changing axial distances between the three lens groups in a zooming process. The image capturing lens system has a long-focal-length end and a short-focal-length end. The second lens group is moved relative to the first lens group along an optical axis in the zooming process.
-
公开(公告)号：US20230146576A1
公开(公告)日：2023-05-11
申请号：US18148539
申请日：2022-12-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Tsung-Han TSAI , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B13/18 , G02B9/62 , G02B27/0025
Abstract: An image capturing optical lens system includes, 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, and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element with refractive power has a concave image-side surface. The fourth lens element has refractive power, and at least one surface thereof is aspheric. The fifth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and the surfaces thereof are aspheric. The sixth lens element with refractive power has a convex object-side surface, and an image-side surface changing from concave at a paraxial region thereof to convex at a peripheral region thereof, and the surfaces are aspheric.
-
公开(公告)号：US20220286662A1
公开(公告)日：2022-09-08
申请号：US17477191
申请日：2021-09-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Fuh-Shyang YANG , Hsiang-Chi TANG , Tsung-Han TSAI , Hsin-Hsuan HUANG
IPC: H04N13/243 , H04N5/232 , H04N5/247 , H04N13/344 , H04N13/383 , H04N13/271 , G02B27/01 , G02B7/04 , G02B1/00 , G02B27/00
Abstract: A head-mounted device includes a plurality of front camera modules, a display device, an in-display camera module and an image-processing unit. The front camera modules include a first camera module and a second camera module that are respectively disposed at the left and right sides of the head-mounted device. The in-display camera module is disposed within the boundary of the display device. The image-processing unit is in communication connection with the front camera modules and the display device. The display device and the in-display camera module face a user side of the head-mounted device.
-
公开(公告)号：US20220113831A1
公开(公告)日：2022-04-14
申请号：US17194610
申请日：2021-03-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hsiang-Chi TANG , Tsung-Han TSAI , Fuh-Shyang YANG
Abstract: An optical fingerprint identification system includes a cover, a light emitting layer, an optical layer, an image sensor and a base that are sequentially disposed from top to bottom. The cover has a fingerprint contact surface on top. The image sensor has an image surface. The optical layer includes a first array layer and a second array layer, and the first array layer is stacked on top of the second array layer. The first array layer and the second array layer respectively include a plurality of first array lens elements and a plurality of second array lens elements respectively arranged at equal intervals in a first direction. Each of the first array lens elements and a corresponding second array lens element of the second array layer are coaxial along an optical axis and form an imaging unit.
-
公开(公告)号：US20220075163A1
公开(公告)日：2022-03-10
申请号：US17066414
申请日：2020-10-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Tzu-Chieh KUO
Abstract: An image capturing lens system includes three lens groups including five lens elements. The three lens groups are, in order from an object side to an image side: first, second and third lens groups. The five lens elements are, in order from the object side to the image side: first, second, third, fourth and fifth lens elements. The first lens element has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. At least one lens element has an inflection point. A focal length of the image capturing lens system is varied by changing axial distances between the three lens groups in a zooming process. The image capturing lens system has a long-focal-length end and a short-focal-length end. The second lens group is moved relative to the first lens group along an optical axis in the zooming process.
-
Patent Agency Ranking
公开(公告)号：US20200379267A1
公开(公告)日：2020-12-03
申请号：US16995937
申请日：2020-08-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Cheng-Chen LIN , Ming-Ta CHOU
Abstract: An imaging lens assembly includes a plastic barrel and an imaging lens set. The plastic barrel includes an object-side aperture and a first annular surface. The imaging lens set includes a plurality of optical elements, wherein at least one of the optical elements is a plastic lens element, and the plastic lens element includes an effective optical portion, a peripheral portion, a second annular surface, and an object-side connecting surface. The peripheral portion is formed around the effective optical portion. The second annular surface is formed on an object-side surface of the plastic lens element and surrounds the effective optical portion. The object-side connecting surface is formed on the object-side surface of the plastic lens element and surrounds the effective optical portion, and the object-side connecting surface is connected with one of the optical elements disposed on an object side of the plastic lens element.
-
公开(公告)号：US20200158987A1
公开(公告)日：2020-05-21
申请号：US16522843
申请日：2019-07-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU , Hsiang-Chi TANG , Tzu-Chieh KUO
Abstract: A plastic lens assembly includes at least two plastic lens elements and at least one cementing glue coating. The plastic lens elements include a first plastic lens element and a second plastic lens element. The first plastic lens element has a first optical effective portion and a first peripheral portion, wherein the first peripheral portion surrounds the first optical effective portion. The second plastic lens element has a second optical effective portion and a second peripheral portion, wherein the second peripheral portion surrounds the second optical effective portion. The cementing glue coating is disposed between the first optical effective portion and the second optical effective portion, and for cementing the first plastic lens element and the second plastic lens element, wherein at least one optical gap is formed between the first optical effective portion and the second optical effective portion.
-
公开(公告)号：US20200073088A1
公开(公告)日：2020-03-05
申请号：US16674255
申请日：2019-11-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin HUANG , Hsiang-Chi TANG , Ming-Ta CHOU
Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.
-
公开(公告)号：US20190033556A1
公开(公告)日：2019-01-31
申请号：US15861375
申请日：2018-01-03
Applicant: LARGAN Precision Co., Ltd.
Inventor： Hsiang-Chi TANG , Cheng-Chen LIN , Chun-Yen CHEN , Hsin-Hsuan HUANG
Abstract: An imaging lens system includes six lens elements, which are, 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 and a sixth lens element. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The image-side surface of the sixth lens element has at least one inflection point.
-
公开(公告)号：US20180292630A1
公开(公告)日：2018-10-11
申请号：US16008004
申请日：2018-06-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Tsung-Han TSAI , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/18 , G02B27/0025
Abstract: An image capturing optical lens system includes, 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, and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element with refractive power has a concave image-side surface. The fourth lens element has refractive power, and at least one surface thereof is aspheric. The fifth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and the surfaces thereof are aspheric. The sixth lens element with refractive power has a convex object-side surface, and an image-side surface changing from concave at a paraxial region thereof to convex at a peripheral region thereof, and the surfaces are aspheric.
-
-
-
-
-
-
-
-
-
Search Results
59
records
(took 0.029 seconds)
