Patents by Inventor Kuang-Ju Wang
Kuang-Ju Wang 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: 11869267Abstract: A multiple-lens optical fingerprint reader for reading fingerprints through a display has a spacer; and multiple microlenses with concave and convex surfaces in a microlens array, each microlens of multiple lenses focuses light arriving at that microlens from a finger adjacent the display through the spacer forms an image on associated photosensors on a photosensor array of an image sensor integrated circuit. A method of verifying identity of a user includes illuminating a finger of the user with an OLED display; focusing light from the finger through arrayed microlenses onto a photosensor array, reading the array into overlapping electronic fingerprint images; extracting features from the overlapping fingerprint images or from a stitched fingerprint image, and comparing the features to features of at least one user in a library of features and associated with one or more fingers of one or more authorized users.Type: GrantFiled: October 27, 2021Date of Patent: January 9, 2024Assignee: OmniVision Technologies, Inc.Inventors: Jau-Jan Deng, Kuang-Ju Wang, Chun-Jen Wei
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Publication number: 20230131591Abstract: A multiple-lens optical fingerprint reader for reading fingerprints through a display has a spacer; and multiple microlenses with concave and convex surfaces in a microlens array, each microlens of multiple lenses focuses light arriving at that microlens from a finger adjacent the display through the spacer forms an image on associated photosensors on a photosensor array of an image sensor integrated circuit. A method of verifying identity of a user includes illuminating a finger of the user with an OLED display; focusing light from the finger through arrayed microlenses onto a photosensor array, reading the array into overlapping electronic fingerprint images; extracting features from the overlapping fingerprint images or from a stitched fingerprint image, and comparing the features to features of at least one user in a library of features and associated with one or more fingers of one or more authorized users.Type: ApplicationFiled: October 27, 2021Publication date: April 27, 2023Inventors: Jau-Jan DENG, Kuang-Ju WANG, Chun-Jen WEI
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Publication number: 20220230011Abstract: A multiple-lens optical fingerprint reader for reading fingerprints through a display has an image sensor integrated circuit with photosensor array(s); a spacer; and multiple lenses in a microlens array, each lens of multiple lenses focuses light arriving at that lens from a finger adjacent the display through the spacer to form an image on associated photosensors on a photosensor array of the integrated circuit. A method of verifying identity of a user includes illuminating a finger of the user with an OLED display; focusing light from the fingerprint through arrayed microlenses onto a photosensor array of an integrated circuit, reading the array to overlapping electronic fingerprint images; extracting features from the overlapping electronic fingerprint images or from a stitched fingerprint image, and comparing the features to features of at least one user in a library of features and associated with one or more fingers of one or more authorized users.Type: ApplicationFiled: January 15, 2021Publication date: July 21, 2022Inventors: Tsung-Wei WAN, Wei-Ping CHEN, Jau-Jan DENG, Kuang-ju WANG
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Publication number: 20170123191Abstract: A wide angle lens system, in order from an object side to an image side, the wide angle lens system includes a first lens with negative refraction power, a second lens with positive refraction power, and an image plane. The wide angle lens system is satisfied with the following formulas: (1) 5<TTL/f<7; (2) ?1.9<f1/f<?1.0; (3) 1.0<f2/f<2.0, where TTL is a distance between an object side surface of the first lens and the image plane, f is a focal length of the wide angle lens system, f1 is a focal length of the first lens, f2 is a focal length of the second lens.Type: ApplicationFiled: March 25, 2016Publication date: May 4, 2017Inventors: KUANG-JU WANG, TE-LUN HSU, CHENG-HUNG HSING
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Patent number: 7929217Abstract: The present disclosure relates to a projection lens. The projection lens includes, in order from the magnified end to the minified end thereof, a first lens of negative refraction power, a second lens of positive refraction power, a third lens of negative refraction power, a fourth lens of positive refraction power, and a fifth lens of positive refraction power. The forth lens and the third lens are bonded to integrally form a compound lens of negative refraction power. The projection lens satisfies the following condition: 0.4<R12/f<0.9. Wherein, R12 is a radius of curvature of the surface at the minified end of the first lens, f is an effective focal length of the projection lens.Type: GrantFiled: August 14, 2009Date of Patent: April 19, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Kuang-Ju Wang, Chun-Hsiang Huang
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Patent number: 7924508Abstract: A projection lens includes, in the order from a large conjugate side to a small conjugate side thereof, a negative lens group having a negative refractive power and a positive lens group having a positive refractive power. The positive lens group includes, in the order from the large conjugate side to the small conjugate side of the projection lens, a front sub-group and a rear sub-group each having a positive refractive power. The projection lens satisfies the formulas: ?1.35<F1/F<?0.35 and 3<F24/F<5, where F1, F24, and F correspondingly represent the effective focal lengths of the negative lens group, the rear sub-group, and the projection lens.Type: GrantFiled: August 13, 2009Date of Patent: April 12, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Kuang-Ju Wang, Chun-Hsiang Huang
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Publication number: 20100315726Abstract: The present disclosure relates to a projection lens. The projection lens includes, in order from the magnified end to the minified end thereof, a first lens of negative refraction power, a second lens of positive refraction power, a third lens of negative refraction power, a fourth lens of positive refraction power, and a fifth lens of positive refraction power. The forth lens and the third lens are bonded to integrally form a compound lens of negative refraction power. The projection lens satisfies the following condition: 0.4<R12/f<0.9. Wherein, R12 is a radius of curvature of the surface at the minified end of the first lens, f is an effective focal length of the projection lens.Type: ApplicationFiled: August 14, 2009Publication date: December 16, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KUANG-JU WANG, CHUN-HSIANG HUANG
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Publication number: 20100277815Abstract: A projection lens includes, in the order from a large conjugate side to a small conjugate side thereof, a negative lens group having a negative refractive power and a positive lens group having a positive refractive power. The positive lens group includes, in the order from the large conjugate side to the small conjugate side of the projection lens, a front sub-group and a rear sub-group each having a positive refractive power. The projection lens satisfies the formulas: ?1.35<F1/F<?0.35 and 3<F24/F<5, where F1, F24, and F correspondingly represent the effective focal lengths of the negative lens group, the rear sub-group, and the projection lens.Type: ApplicationFiled: August 13, 2009Publication date: November 4, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KUANG-JU WANG, CHUN-HSIANG HUANG
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Publication number: 20100073779Abstract: A lens system includes, in order from the object side, a positive refractive power first lens, a negative refractive power second lens, a positive refractive power third lens, and a fourth lens. Wherein the lens system satisfies the following conditions: (1) TTL/f<1.3; and (2) 0.75<f1/f<1.25, wherein, TTL is a distance from a surface of the first lens facing the object side of the lens system to the image plane, f is a focal length of the lens system, and f1 is a focal length of the first lens.Type: ApplicationFiled: December 9, 2008Publication date: March 25, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KUANG-JU WANG, CHUN-HSIANG HUANG
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Patent number: 7684129Abstract: An imaging lens system, in order from the object side to the image side thereof, includes a first lens with positive refractive power, and a second lens with positive refractive power. The imaging lens system satisfies the following formulas: 1.2?TTL/f?2.0, where image sensing element TTL is the distance along an optical axis thereof from the object-side lens surface of the first lens to an imaging plane, f is the focal length of whole the image lens system.Type: GrantFiled: December 28, 2008Date of Patent: March 23, 2010Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Kuang-Ju Wang, Chun-Hsiang Huang
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Patent number: 7679832Abstract: An exemplary projection lens system includes, in the order from the magnification side to the reduction side thereof, a first lens with a negative refractive power, a second lens with a positive refractive power, a lens group with a negative refractive power, and a third lens with a positive refractive power. The projection lens system satisfies the formula 0.3<|f1/f(2-4)|<1.0, where f1 is a focal length of the first lens, f(2-4) is an effective focal length of the second lens, the lens group and the third lens.Type: GrantFiled: December 9, 2008Date of Patent: March 16, 2010Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Kuang-Ju Wang, Chun-Hsiang Huang