Patents by Inventor Chun-Hua TSAI
Chun-Hua TSAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210263257Abstract: An imaging lens module includes an imaging lens assembly, an image sensor and a plastic lens barrel. The image sensor is disposed on an image side of the imaging lens assembly and has an image sensing surface through which an optical axis of the imaging lens assembly passes. The plastic lens barrel includes an object-end portion, a bottom portion, a first inner hole portion and a second inner hole portion. An object-end surface of the object-end portion faces towards an object side direction of the imaging lens assembly. A tapered surface of the object-end portion is tapered off towards the object-end surface. The bottom portion is located on an image side of the object-end portion. The imaging lens assembly is disposed in the first inner hole portion. The second inner hole portion located on an image side of the first inner hole portion and includes an optical aligning structure.Type: ApplicationFiled: April 20, 2020Publication date: August 26, 2021Applicant: LARGAN PRECISION CO., LTD.Inventors: Lin An CHANG, Ming-Ta CHOU, Chun-Hua TSAI
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Patent number: 10917547Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: GrantFiled: January 17, 2020Date of Patent: February 9, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Hua Tsai, Ming-Ta Chou
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Publication number: 20200409028Abstract: An imaging lens module with auto focus function includes an imaging lens assembly, an electromagnetic driving component assembly and a lens carrier. The imaging lens assembly has an optical axis. The electromagnetic driving component assembly drives the imaging lens assembly to move in a direction parallel to the optical axis by a Lorentz force. The imaging lens assembly is mounted to the lens carrier such that the imaging lens assembly can be wholly driven by the Lorentz force. The lens carrier includes an object-side part, a mounting structure and a plurality of plate portions. The object-side part includes a tip-end minimal aperture configured for light to travel through; and a tapered surface which surrounds an area tapered off from image side to object side. The mounting structure and the plate portions are configured for at least a part of the electromagnetic driving component assembly to be mounted thereto.Type: ApplicationFiled: December 2, 2019Publication date: December 31, 2020Applicant: LARGAN DIGITAL CO.,LTD.Inventors: Chun-Hua TSAI, Ming-Ta CHOU, Ming-Shun CHANG
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Publication number: 20200363603Abstract: A plastic lens barrel includes an object-side portion, an image-side portion and a tube-shaped portion. The object-side portion is located close to an object side of the plastic lens barrel. The object-side portion includes an object-side opening and an object-side annular surface. The object-side annular surface surrounds the object-side opening and faces toward the object side. The image-side portion is located close to an image side of the plastic lens barrel and includes an image-side opening. The tube-shaped portion surrounds an optical axis. The tube-shaped portion is connected between the object-side portion and the image-side portion, and configured to define an inner space. The object-side annular surface includes a groove structure area. The groove structure area includes a plurality of groove structures. The groove structures are disposed in at least one of an arranging manner and an extending manner along a sagittal direction away from the optical axis.Type: ApplicationFiled: May 6, 2020Publication date: November 19, 2020Inventors: Chun-Hua TSAI, Ming-Ta CHOU, Lin-An CHANG
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Publication number: 20200292779Abstract: An imaging lens module includes a plastic barrel, an optical lens assembly and a glue material. The plastic barrel includes an outer object-end surface, an outer image-end surface and an inner tube surface. The inner tube surface connects the outer object-end surface and the outer image-end surface, and includes a plurality of parallel inner surfaces. A plurality of stripe structures are disposed on and protruded from at least one of the parallel inner surfaces, wherein the stripe structures are regularly arranged along a circumferential direction of the parallel inner surface. The optical lens assembly includes a plurality of optical elements disposed in the plastic barrel and arranged along the optical axis, wherein an outer annular surface of at least one of the optical elements is disposed correspondingly to the stripe structures. The glue material is applied among the outer annular surface and the stripe structures.Type: ApplicationFiled: June 4, 2020Publication date: September 17, 2020Inventors: Chun-Hua TSAI, Ming-Ta CHOU, Ming-Shun CHANG
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Publication number: 20200272030Abstract: A camera module includes an imaging lens assembly and an image sensor, wherein the image sensor is located on an image side of the imaging lens assembly. The imaging lens assembly has an optical axis and includes a plastic lens barrel and a plurality of plastic lens elements, wherein the plastic lens elements are disposed in the plastic lens barrel. The plastic lens barrel includes an object-side outer surface, a lens barrel minimum opening, an object-side outer inclined surface and a reversing inclined surface. The object-side outer surface is a surface of the plastic lens barrel facing towards an object side being closest to the object side and is annular. The reversing inclined surface expands from the lens barrel minimum opening to the image side, wherein a connecting position of the reversing inclined surface and the object-side outer inclined surface forms the lens barrel minimum opening.Type: ApplicationFiled: February 20, 2020Publication date: August 27, 2020Inventors: Chun-Hua TSAI, Ming-Ta CHOU
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Patent number: 10712527Abstract: An imaging lens module includes a plastic barrel, an optical lens assembly and a glue material. The plastic barrel includes an outer object-end surface, an outer image-end surface and an inner tube surface. The inner tube surface connects the outer object-end surface and the outer image-end surface, and includes a plurality of parallel inner surfaces. A plurality of stripe structures are disposed on and protruded from at least one of the parallel inner surfaces, wherein the stripe structures are regularly arranged along a circumferential direction of the parallel inner surface. The optical lens assembly includes a plurality of optical elements disposed in the plastic barrel and arranged along the optical axis, wherein an outer annular surface of at least one of the optical elements is disposed correspondingly to the stripe structures. The glue material is applied among the outer annular surface and the stripe structures.Type: GrantFiled: September 12, 2018Date of Patent: July 14, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Hua Tsai, Ming-Ta Chou, Ming-Shun Chang
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Publication number: 20200195817Abstract: An optical lens assembly includes at least one dual molded lens element. The dual molded lens element has a central axis, and includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective region and a lens peripheral region, and the lens peripheral region surrounds the optical effective region. A light absorbing portion surrounds the optical effective region. The light transmitting portion and the light absorbing portion are made of different plastic materials with different colors, and the light absorbing portion includes at least three gate portions surrounding the central axis, wherein all gate portions are located on the same surface of the dual molded lens element. The light transmitting portion and the light absorbing portion of the dual molded lens element are integrally formed by the injection molding.Type: ApplicationFiled: September 18, 2019Publication date: June 18, 2020Inventors: Ming-Shun CHANG, Ming-Ta CHOU, Chun-Hua TSAI
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Publication number: 20200154013Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: ApplicationFiled: January 17, 2020Publication date: May 14, 2020Inventors: Chun-Hua TSAI, Ming-Ta CHOU
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Patent number: 10634880Abstract: An imaging lens module includes an imaging lens assembly and a first optical component. The imaging lens assembly has an optical axis and includes a lens element. The lens element includes an effective optical portion, which is non-circular and disposed on a center of the lens element. The first optical component has a non-circular opening hole. The effective optical portion of the lens element of the imaging lens assembly is corresponded to the non-circular opening hole of the first optical component.Type: GrantFiled: January 18, 2019Date of Patent: April 28, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Feng Lin, Chun-Hua Tsai, Ming-Ta Chou
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Patent number: 10587788Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: GrantFiled: August 19, 2019Date of Patent: March 10, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Hua Tsai, Ming-Ta Chou
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Patent number: 10574869Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: GrantFiled: June 11, 2018Date of Patent: February 25, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Hua Tsai, Ming-Ta Chou
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Publication number: 20200057234Abstract: An imaging lens assembly includes a plastic barrel and a lens element set. The lens element set is disposed in the plastic barrel and has an optical axis. The lens element set includes an object-side lens element and an image-side lens element. The object-side lens element has an outer diameter surface and an optical effective portion, and includes a conical-aligning surface located on an image-side surface of the object-side lens element and for coaxially aligning and connecting the image-side lens element.Type: ApplicationFiled: May 1, 2019Publication date: February 20, 2020Inventors: Yeo-Chih HUANG, Chun-Hua TSAI
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Publication number: 20200018925Abstract: A plastic barrel includes an inner portion and an outer portion. The inner portion defines an interior space. The inner portion includes, in order from an object side to an image side, an object-side opening, a plurality of inner annular surfaces and an image-side opening. The interior space is configured for accommodating an imaging lens assembly, and the imaging lens assembly includes a plurality of plastic lens elements. The outer portion surrounds the inner portion. The outer portion includes a mounting structure. The mounting structure is disposed on a surface of the outer portion. The mounting structure is injection molded for mounting a planar conductive element and a wiring element. The mounting structure includes at least three gate traces, and the three gate traces are located on a surface of the mounting structure.Type: ApplicationFiled: May 30, 2019Publication date: January 16, 2020Inventors: Ming-Ta CHOU, Chun-Hua TSAI
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Publication number: 20190373148Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: ApplicationFiled: August 19, 2019Publication date: December 5, 2019Inventors: Chun-Hua TSAI, Ming-Ta CHOU
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Patent number: 10432837Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: GrantFiled: December 27, 2018Date of Patent: October 1, 2019Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Hua Tsai, Ming-Ta Chou
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Publication number: 20190154995Abstract: An imaging lens module includes an imaging lens assembly and a first optical component. The imaging lens assembly has an optical axis and includes a lens element. The lens element includes an effective optical portion, which is non-circular and disposed on a center of the lens element. The first optical component has a non-circular opening hole. The effective optical portion of the lens element of the imaging lens assembly is corresponded to the non-circular opening hole of the first optical component.Type: ApplicationFiled: January 18, 2019Publication date: May 23, 2019Inventors: Cheng-Feng Lin, Chun-Hua Tsai, Ming-Ta Chou
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Publication number: 20190132498Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: ApplicationFiled: December 27, 2018Publication date: May 2, 2019Inventors: Chun-Hua TSAI, Ming-Ta CHOU
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Patent number: 10222586Abstract: An imaging lens module includes an imaging lens assembly and a first optical component. The imaging lens assembly has an optical axis and includes a lens element. The lens element includes an effective optical portion, which is non-circular and disposed on a center of the lens element. The first optical component has a non-circular opening hole. The effective optical portion of the lens element of the imaging lens assembly is corresponded to the non-circular opening hole of the first optical component.Type: GrantFiled: October 18, 2017Date of Patent: March 5, 2019Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Feng Lin, Chun-Hua Tsai, Ming-Ta Chou
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Patent number: 10205863Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.Type: GrantFiled: June 11, 2018Date of Patent: February 12, 2019Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Hua Tsai, Ming-Ta Chou