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公开(公告)号：US11917339B2
公开(公告)日：2024-02-27
申请号：US17685900
申请日：2022-03-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jie Hong , Chun-Che Hsueh , Fuh-Shyang Yang
CPC classification number: H04N9/3152 , G02B26/0833 , G03B21/005 , G03B21/16 , G03B21/2066
Abstract: A light engine includes an image surface, a projected light surface, a projection lens assembly, and a plurality of folding elements. The image surface has three image areas. The projected light surface has three light sources that provide light with different wavelengths. The plurality of folding elements are arranged along a light emitting axis. The image surface and the projected light surface are substantially in parallel with the light emitting axis, and there is an air gap located between the image surface and the projected light surface. The three light sources respectively correspond to the plurality of folding elements and respectively correspond to the three image areas, and the light emitting axis and the projection lens assembly are disposed on the same optical path.
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102.发明授权公开(公告)号：US11769342B2
公开(公告)日：2023-09-26
申请号：US17076671
申请日：2020-10-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Chun-Che Hsueh , Tsung-Han Tsai , Fuh-Shyang Yang
CPC classification number: G06V40/1318 , G02B3/0087 , G02B5/003 , G02B5/28 , G02B19/0076 , G02B27/30 , H01L27/1462 , H01L27/14627 , H01L27/14678 , G02B3/08
Abstract: An optical fingerprint identification system includes a base, a photo sensor, a light emitting layer and a cover. The photo sensor is disposed on the base. The light emitting layer is disposed above the photo sensor, and the light emitting layer includes a light emitting element. The cover is disposed above the light emitting layer. The optical fingerprint identification system further includes a light path adjusting element between the photo sensor and the cover. The light emitting element is disposed away from the light path adjusting element and the photo sensor in a sideway direction that is different from a stack direction of the optical fingerprint identification system.
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公开(公告)号：US11709342B2
公开(公告)日：2023-07-25
申请号：US16993128
申请日：2020-08-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun Wu , Chun-Che Hsueh , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/06
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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公开(公告)号：US11619804B2
公开(公告)日：2023-04-04
申请号：US16846632
申请日：2020-04-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Yu-Tai Tseng , Hsin-Hsuan Huang
Abstract: An optical photographing 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 has an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has two surfaces being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the surfaces of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex shape in an off-axial region thereof.
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105.发明授权公开(公告)号：US11373433B2
公开(公告)日：2022-06-28
申请号：US17023241
申请日：2020-09-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Chun-Che Hsueh , Tsung-Han Tsai , Fuh-Shyang Yang
IPC: G06V40/13
Abstract: An optical fingerprint identification system includes a base, a photo sensor, a light emitting layer and a cover. The photo sensor is disposed on the base. The light emitting layer is disposed above the photo sensor, and the light emitting layer includes a light emitting element. The cover is disposed above the light emitting layer. The optical fingerprint identification system further includes a condenser unit and a light receiving element between the photo sensor and the cover. The condenser unit is disposed above the photo sensor. The light receiving element is disposed above the condenser unit. The light emitting element is disposed away from the photo sensor, the condenser unit and the light receiving element in a sideway direction that is different from a stack direction of the optical fingerprint identification system.
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Patent Agency Ranking
公开(公告)号：US11009685B2
公开(公告)日：2021-05-18
申请号：US16729624
申请日：2019-12-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Wei-Yu Chen
Abstract: A image capturing lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with positive refractive power having an object-side surface being convex and an image-side surface being convex thereof; and a sixth lens element having an image-side surface being concave in a paraxial region thereof, the image-side surface having at least one convex critical point in an off-axial region thereof, and an object-side surface and the image-side surface being aspheric.
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公开(公告)号：US10928608B2
公开(公告)日：2021-02-23
申请号：US16232744
申请日：2018-12-26
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chun-Che Hsueh , Tzu-Chieh Kuo
Abstract: An imaging optical 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. 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 object-side surface of the second lens element is concave in a paraxial region thereof. The image-side surface of the second lens element is convex in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. At least one lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.
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公开(公告)号：US10656383B2
公开(公告)日：2020-05-19
申请号：US15420951
申请日：2017-01-31
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Yu-Tai Tseng , Hsin-Hsuan Huang
Abstract: An optical photographing 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 has an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has two surfaces being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the surfaces of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex shape in an off-axial region thereof.
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公开(公告)号：US10564402B2
公开(公告)日：2020-02-18
申请号：US16268820
申请日：2019-02-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Wei-Yu Chen
Abstract: A image capturing lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with positive refractive power having an object-side surface being convex and an image-side surface being convex thereof; and a sixth lens element having an image-side surface being concave in a paraxial region thereof, the image-side surface having at least one convex critical point in an off-axial region thereof, and an object-side surface and the image-side surface being aspheric.
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公开(公告)号：US20190361199A1
公开(公告)日：2019-11-28
申请号：US16538907
申请日：2019-08-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun Hsu , Chun-Yen Chen , Chun-Che Hsueh , Wei-Yu Chen
Abstract: An optical photographing lens assembly includes seven 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, a sixth lens element and a seventh lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof and including at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric.
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