Patents by Inventor Pei-Chi CHANG
Pei-Chi CHANG 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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Patent number: 11990545Abstract: A method for making a semiconductor device includes forming a ROX layer on a substrate and a patterned silicon oxynitride layer on the patterned ROX layer; conformally forming a dielectric oxide layer to cover the substrate, the patterned silicon oxynitride layer, and the patterned ROX layer; and fully oxidizing the patterned silicon oxynitride layer to form a fully oxidized gate oxide layer on the substrate.Type: GrantFiled: October 19, 2022Date of Patent: May 21, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Tsu-Hsiu Perng, Yun-Chi Wu, Chia-Chen Chang, Cheng-Bo Shu, Jyun-Guan Jhou, Pei-Lun Wang
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Publication number: 20240109739Abstract: This disclosure is directed to an automatic sheet feeding device having a flipping mechanism which is used for a sheet. The automatic sheet feeding device has a sheet outputting tray, a sheet outputting channel, the flipping mechanism and a switching guide mechanism. The sheet outputting channel is disposed corresponding to the sheet outputting tray. The flipping mechanism is arranged between the sheet outputting channel and the sheet outputting tray. The switching guide mechanism is arranged between the sheet outputting channel and the flipping mechanism, and the switching guide mechanism is used for guiding the sheet to be conveyed to the sheet outputting tray from the sheet outputting channel or conveyed to the sheet outputting tray from the flipping mechanism. Therefore, an efficiency of duplex scanning of the automatic sheet feeding device may be improved.Type: ApplicationFiled: November 23, 2022Publication date: April 4, 2024Inventors: Pei-Chi HO, Po-Chih CHANG
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Patent number: 11874585Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.Type: GrantFiled: February 20, 2023Date of Patent: January 16, 2024Assignee: LARGAN PRECISION CO., LTD.Inventors: Lin An Chang, Pei-Chi Chang, Ming-Ta Chou
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Publication number: 20230358926Abstract: 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.Type: ApplicationFiled: April 27, 2023Publication date: November 9, 2023Inventors: Yeo-Chih HUANG, Pei-Chi CHANG, Chun-Hung TENG
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Publication number: 20230273411Abstract: An imaging lens assembly includes a plurality of optical elements, an optical axis passing through the optical elements is defined, and the optical elements include at least one mixing optical element. The mixing optical element includes a glass effective optical portion and a plastic outer peripheral portion. The optical axis passes through the glass effective optical portion. The plastic outer peripheral portion surrounds and physically contacts the glass effective optical portion, and forms an aperture hole. The plastic outer peripheral portion has at least three recess structures arranged and disposed along a circumference direction around the optical axis. The recess structures extend from one of the object side and the image side of the imaging lens assembly to the other thereof along a direction parallel to the optical axis. Each of the recess structures includes an outer surface, an inner surface and two side surfaces.Type: ApplicationFiled: January 31, 2023Publication date: August 31, 2023Inventors: Pei-Chi CHANG, Heng-Yi SU, Hsuan-Chin HUANG
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Publication number: 20230205058Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.Type: ApplicationFiled: February 20, 2023Publication date: June 29, 2023Applicant: LARGAN PRECISION CO., LTD.Inventors: Lin An CHANG, Pei-Chi CHANG, Ming-Ta CHOU
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Patent number: 11675113Abstract: 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.Type: GrantFiled: January 4, 2021Date of Patent: June 13, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Yeo-Chih Huang, Pei-Chi Chang, Chun-Hung Teng
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Publication number: 20230115906Abstract: An imaging optical system includes an infrared light absorbing element, an infrared light reducing film and a plate element in order along a paraxial path. The infrared light absorbing element is made of an infrared light absorbing plastic material, and the infrared light absorbing element is configured to refract a light. The infrared light reducing film is closer to an image surface of the imaging optical system than an incident surface of the infrared light absorbing element to the image surface of the imaging optical system. The plate element is disposed between the infrared light reducing film and the image surface, the plate element includes a translucent portion, a holder portion and a taper structure coating. The taper structure coating is disposed on at least one of an incident surface and an exit surface of the translucent portion.Type: ApplicationFiled: September 21, 2022Publication date: April 13, 2023Inventors: Pei-Chi CHANG, Chien-Pang CHANG, Yu-Chen LAI, Ming-Ta CHOU, Wen-Yu TSAI, Kuo-Chiang CHU
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Patent number: 11614676Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.Type: GrantFiled: August 26, 2021Date of Patent: March 28, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Lin An Chang, Pei-Chi Chang, Ming-Ta Chou
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Publication number: 20220397807Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.Type: ApplicationFiled: August 26, 2021Publication date: December 15, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Lin An CHANG, Pei-Chi CHANG, Ming-Ta CHOU
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Publication number: 20220244507Abstract: A plastic light-folding element includes an incident surface, an exit surface, at least one reflective surface, at least one connecting surface and at least one gate vestige structure. The incident surface is configured to lead an imaging light enter the plastic light-folding element. The exit surface is configured to lead the imaging light exit the plastic light-folding element. The reflective surface is configured to fold the imaging light. The connecting surface is connected to the incident surface, the exit surface and the reflective surface. The gate vestige structure is disposed on the connecting surface. At least one of the incident surface, the exit surface and the reflective surface includes an optical portion and an arc step structure, the arc step structure is disposed on a periphery of the optical portion, and an arc is formed by the arc step structure centered on the optical portion.Type: ApplicationFiled: January 14, 2022Publication date: August 4, 2022Inventors: Pei-Chi CHANG, Wei-Chun LO, Po-Lun HSU, Lin-An CHANG, Ming-Ta CHOU
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Publication number: 20220163710Abstract: An optical lens assembly includes at least three optical lens elements. At least one of the optical lens elements includes an infrared filtering coating, the optical lens element including the infrared filtering coating is made of a plastic material, the infrared filtering coating is arranged on an object-side surface or an image-side surface of the optical lens element, a surface of the optical lens element including the infrared filtering coating is aspheric, and the infrared filtering coating includes at least two different refractive indices. At least one of the optical lens elements includes a long-wavelength absorbing material, and the optical lens element including the long-wavelength absorbing material is made of a plastic material.Type: ApplicationFiled: November 24, 2021Publication date: May 26, 2022Inventors: Pei-Chi CHANG, Hung-Shuo CHEN, Chun-Hung TENG
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Publication number: 20220035128Abstract: An optical lens assembly includes at least two optical lens elements. At least one of the optical lens elements includes a long wavelength absorbing material, the optical lens element including the long wavelength absorbing material is made of a plastic material, and the long wavelength absorbing material is evenly mixed with the plastic material. At least one of the optical lens elements includes a long wavelength filter coating, the optical lens element including the long wavelength filter coating is made of a plastic material, and the long wavelength filter coating is arranged on an object-side surface or an image-side surface of the optical lens element. The long wavelength filter coating includes a plurality of high refractive index coating layers and a plurality of low refractive index coating layers, and the high refractive index coating layers and the low refractive index coating layers are stacked in alternations.Type: ApplicationFiled: July 30, 2021Publication date: February 3, 2022Inventors: Chien-Pang CHANG, Pei-Chi CHANG, Chun-Hung TENG
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Patent number: 11073638Abstract: An optical image lens assembly includes at least one optical lens element which is made of a plastic material and includes at least one short-wavelength light absorbing agent. The short-wavelength light absorbing agent is homogeneously mixed with the plastic material. The optical lens element including the short-wavelength light absorbing agent has refractive power, and at least one of the object-side surface and the image-side surface of the optical lens element including the short-wavelength light absorbing agent is aspheric.Type: GrantFiled: September 4, 2017Date of Patent: July 27, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Pei-Chi Chang, Ming-Jui Kuo
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Publication number: 20210124096Abstract: 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.Type: ApplicationFiled: January 4, 2021Publication date: April 29, 2021Inventors: Yeo-Chih HUANG, Pei-Chi CHANG, Chun-Hung TENG
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Patent number: 10942305Abstract: An optical image lens assembly includes a plurality of optical lens elements, wherein the optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. Wherein at least one long-wavelength red light absorbing optical lens element made of a plastic material and having refractive powers is disposed within the optical image lens assembly, and the long-wavelength red light absorbing optical lens element can be penetrated by a visible light and can filter a long-wavelength red light.Type: GrantFiled: March 21, 2019Date of Patent: March 9, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Pei-Chi Chang, Yeo-Chih Huang
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Patent number: 10921496Abstract: 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.Type: GrantFiled: April 9, 2019Date of Patent: February 16, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Yeo-Chih Huang, Pei-Chi Chang, Chun-Hung Teng
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Publication number: 20190317257Abstract: An optical image lens assembly includes a plurality of optical lens elements, wherein the optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. Wherein at least one long-wavelength red light absorbing optical lens element made of a plastic material and having refractive powers is disposed within the optical image lens assembly, and the long-wavelength red light absorbing optical lens element can be penetrated by a visible light and can filter a long-wavelength red light.Type: ApplicationFiled: March 21, 2019Publication date: October 17, 2019Inventors: Pei-Chi CHANG, Yeo-Chih HUANG
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Publication number: 20190317253Abstract: 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.Type: ApplicationFiled: April 9, 2019Publication date: October 17, 2019Inventors: Yeo-Chih HUANG, Pei-Chi CHANG, Chun-Hung TENG
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Patent number: 10078436Abstract: The disclosure provides a method for adjusting a user interface (UI) of an electronic apparatus. The method includes following steps: analyzing color information of an image; generating a first palette having at least one first pilot color based on the color information of the image; and performing a color scheme in at least one page of the user interface according to the first palette having the at least one first pilot color.Type: GrantFiled: October 29, 2015Date of Patent: September 18, 2018Assignee: HTC CorporationInventors: Kuei-Tuan Wu, Wei-Nien Shih, Bo-Cheng Chen, Chia-Jui Wu, Pei-Chi Chang