Patents by Inventor Fei-Hsin Tsai
Fei-Hsin 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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Patent number: 9746648Abstract: A four-piece infrared single wavelength lens system includes, in order from the object side to the image side: a first lens element with a refractive power, a stop, a second lens element with a positive refractive power, a third lens element with a positive refractive power, and a fourth lens element with a positive refractive power. The focal length of the first lens element is f1, the focal length of the second lens element and the third lens element combined is f23, and they satisfy the relation: ?210<f1/f23<365. When the above relation is satisfied, a wide field of view can be obtained and the resolution can be improved evidently.Type: GrantFiled: February 11, 2016Date of Patent: August 29, 2017Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Chun-Sheng Lee
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Publication number: 20170235098Abstract: A four-piece infrared single wavelength lens system includes, in order from the object side to the image side: a first lens element with a refractive power, a stop, a second lens element with a positive refractive power, a third lens element with a positive refractive power, and a fourth lens element with a positive refractive power. The focal length of the first lens element is f1, the focal length of the second lens element and the third lens element combined is f23, and they satisfy the relation: ?210<f1/f23<365. When the above relation is satisfied, a wide field of view can be obtained and the resolution can be improved evidently.Type: ApplicationFiled: February 11, 2016Publication date: August 17, 2017Inventors: Fei-Hsin TSAI, Chun-Sheng LEE
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Publication number: 20170235099Abstract: A four-piece infrared single wavelength lens system includes, in order from the object side to the image side: a first lens element with a positive refractive power, a stop, a second lens element with a refractive power, a third lens element with a positive refractive power, and a fourth lens element with a negative refractive power. The focal length of the first lens element is f1, the focal length of the second lens element and the third lens element combined is f23, and they satisfy the relation: 0.05<f1/f23<1.8. When the above relation is satisfied, a wide field of view can be obtained and the resolution can be improved evidently.Type: ApplicationFiled: February 12, 2016Publication date: August 17, 2017Inventors: Fei-Hsin TSAI, Chun-Sheng LEE
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Publication number: 20170235097Abstract: A three-piece infrared single wavelength lens system includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power, a second lens element with a positive refractive power, and a third lens element with a positive refractive power. The focal length of the first lens element is f1, the focal length of the second lens element and the third lens element combined is f23, and they satisfy the relation: 0.5<f1/f23<1.0. When the above relation is satisfied, a wide field of view can be obtained and the resolution can be improved evidently.Type: ApplicationFiled: February 11, 2016Publication date: August 17, 2017Inventors: Fei-Hsin TSAI, Chun-Sheng LEE
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Publication number: 20170192201Abstract: An optical lens system with a wide field of view includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power, a second lens element with a negative refractive power, a third lens element with a positive refractive power, and a fourth lens element with a negative refractive power. The focal length of the first lens element is f1, the focal length of the second lens element and the third lens element combined is f23, and they satisfy the relation: 0.4<f1/f23<1.7. When the above relation is satisfied, a wide field of view can be obtained and the resolution can be improved evidently.Type: ApplicationFiled: December 30, 2015Publication date: July 6, 2017Inventors: Fei-Hsin TSAI, Sian-Chih KE
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Patent number: 9696523Abstract: An optical imaging lens includes, in order from an object side to an image side: a stop, a first lens element with a positive refractive power, a second lens element with a negative refractive power, a third lens element with a refractive power, a fourth lens element with a positive refractive power, and a fifth lens element with a negative refractive power. A focal length of the second lens element, the third lens element and the fourth lens element combined is f234, a focal length of the fifth lens element is f5, and they satisfy the relation: ?1.8<f234/f5<?1.0, so that the optical imaging lens would have an appropriate refractive power, and spherical aberration and astigmatism can also be reduced.Type: GrantFiled: December 28, 2015Date of Patent: July 4, 2017Assignee: Newmax Technology Co., Ltd.Inventors: Fei-Hsin Tsai, Shu-Tzu Lai
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Publication number: 20170184816Abstract: An optical imaging lens includes, in order from an object side to an image side: a stop, a first lens element with a positive refractive power, a second lens element with a negative refractive power, a third lens element with a refractive power, a fourth lens element with a positive refractive power, and a fifth lens element with a negative refractive power. A focal length of the second lens element, the third lens element and the fourth lens element combined is f234, a focal length of the fifth lens element is f5, and they satisfy the relation: ?1.8<f234/f5<?1.0, so that the optical imaging lens would have an appropriate refractive power, and spherical aberration and astigmatism can also be reduced.Type: ApplicationFiled: December 28, 2015Publication date: June 29, 2017Inventors: Fei-Hsin TSAI, Shu-Tzu LAI
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Patent number: 9563038Abstract: A six-piece optical lens system includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power has a convex object-side surface; a second lens element with a negative refractive power has a convex object-side surface; a third lens element with a positive refractive power has a concave image-side surface; a fourth lens element with a negative refractive power has a concave image-side surface; a fifth lens element with a positive refractive power has a convex object-side surface; a sixth lens element with a negative refractive power has a concave object-side surface, and at least one of object-side and image-side surfaces of each lens element is aspheric. Thereby, such a system can be applied to a high resolution mobile phone.Type: GrantFiled: February 12, 2015Date of Patent: February 7, 2017Assignee: Newmax Technology Co., Ltd.Inventors: Fei-Hsin Tsai, Shu-Tzu Lai
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Publication number: 20160238820Abstract: A six-piece optical lens system includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power has a convex object-side surface; a second lens element with a negative refractive power has a convex object-side surface; a third lens element with a positive refractive power has a concave image-side surface; a fourth lens element with a negative refractive power has a concave image-side surface; a fifth lens element with a positive refractive power has a convex object-side surface; a sixth lens element with a negative refractive power has a concave object-side surface, and at least one of object-side and image-side surfaces of each lens element is aspheric. Thereby, such a system can be applied to a high resolution mobile phone.Type: ApplicationFiled: February 12, 2015Publication date: August 18, 2016Inventors: Fei-Hsin TSAI, Shu-Tzu LAI
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Patent number: 9188766Abstract: A five-piece optical lens system includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power has a convex image-side surface and at least one aspheric surface; a second lens element with a negative refractive power has a convex object-side surface and at least one aspheric surface; a third lens element has a concave image-side surface and at least one aspheric surface; a fourth lens element with a positive refractive power has a convex object-side surface and at least one aspheric surface, and a fifth lens element with a negative refractive power has a concave object-side surface and at least one aspheric surface. Thereby, such a system can be applied to a high resolution mobile phone.Type: GrantFiled: June 17, 2014Date of Patent: November 17, 2015Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Shu-Tzu Lai
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Patent number: 9007702Abstract: A five-piece optical lens system comprises, in order from the object side to the image side: a first lens element with a negative refractive power having a convex object-side surface; a second lens element with a negative refractive power having a concave image-side surface; a third lens element with a positive refractive power having a convex object-side surface; a stop; a fourth lens element with a positive refractive power having a convex image-side surface; a fifth lens element with a negative refractive power having a concave object-side surface, each of the second, third, fourth and fifth lens elements has at least one aspheric surface. Thereby, such a system has a wide field of view and can improve the yield rate when being applied to biomedicine, car recorder, camera or other electronic products.Type: GrantFiled: March 3, 2013Date of Patent: April 14, 2015Assignee: Newmax Technology Co., Ltd.Inventor: Fei-Hsin Tsai
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Patent number: 8953261Abstract: A six-piece optical lens system includes, in order from the object side to the image side: a first lens element with a negative refractive power has a concave image-side surface, a second lens element with a positive refractive power has a convex image-side surface, a third lens element with a positive refractive power has a convex object-side surface, a fourth lens element with a negative refractive power has a concave image-side surface, a fifth lens element with a positive refractive power has a convex object-side surface, and a sixth lens element with a negative refractive power has a concave image-side surface. Each of the first, second, fourth and sixth lens elements has at least one aspheric surface, and one of the third and fifth lens elements is made of glass. Thereby, such a system can be applied to a high resolution mobile phone.Type: GrantFiled: March 3, 2013Date of Patent: February 10, 2015Assignee: Newmax Technology Co., Ltd.Inventor: Fei-Hsin Tsai
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Publication number: 20140247507Abstract: A six-piece optical lens system includes, in order from the object side to the image side: a first lens element with a negative refractive power having a concave image-side surface; a second lens element with a positive refractive power having a convex image-side surface; a third lens element with a positive refractive power having a convex object-side surface; a fourth lens element with a negative refractive power having a concave image-side surface; a fifth lens element with a positive refractive power having a convex object-side surface; a sixth lens element with a negative refractive power having a concave image-side surface, each of the first, second, fourth and sixth lens elements has at least one aspheric surface, one of the third and fifth lens elements being made of glass. Thereby, such a system can be applied to a high resolution mobile phone.Type: ApplicationFiled: March 3, 2013Publication date: September 4, 2014Applicant: NEWMAX TECHNOLOGY CO., LTD.Inventor: Fei-Hsin TSAI
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Publication number: 20140247509Abstract: A five-piece optical lens system comprises, in order from the object side to the image side: a first lens element with a negative refractive power having a convex object-side surface; a second lens element with a negative refractive power having a concave image-side surface; a third lens element with a positive refractive power having a convex object-side surface; a stop; a fourth lens element with a positive refractive power having a convex image-side surface; a fifth lens element with a negative refractive power having a concave object-side surface, each of the second, third, fourth and fifth lens elements has at least one aspheric surface. Thereby, such a system has a wide field of view and can improve the yield rate when being applied to biomedicine, car recorder, camera or other electronic products.Type: ApplicationFiled: March 3, 2013Publication date: September 4, 2014Applicant: NEWMAX TECHNOLOGY CO., LTD.Inventor: Fei-Hsin TSAI
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Patent number: 8422151Abstract: The wide-angle imaging lens module includes four lenses arranged from an object side to an image side in a sequence of: the first lens, having a positive refractive power, a convex surface on the object side and at least one aspheric surface; a diaphragm; the second lens, having a positive refractive power, a concave surface on the object side and at least one aspheric surface; the third lens, having a positive refractive power, a concave surface on the object side and at least one aspheric surface; the fourth lens, having a negative refractive power, a convex surface on the object side and at least one aspheric surface. The first and the second lenses perform a symmetry concave, providing the wider field of view angle and the larger aperture. A structural design that allows lenses to restrain better aberrations performances of aspheric surfaces further provides high-definition and high imaging qualities.Type: GrantFiled: September 1, 2011Date of Patent: April 16, 2013Assignee: Newmax Technology Co., Ltd.Inventors: Shu-Tzu Lai, Fei-Hsin Tsai, Chun-Sheng Lee
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Publication number: 20130057969Abstract: The wide-angle imaging lens module includes four lenses arranged from an object side to an image side in a sequence of: the first lens, having a positive refractive power, a convex surface on the object side and at least one aspheric surface; a diaphragm; the second lens, having a positive refractive power, a concave surface on the object side and at least one aspheric surface; the third lens, having a positive refractive power, a concave surface on the object side and at least one aspheric surface; the fourth lens, having a negative refractive power, a convex surface on the object side and at least one aspheric surface. The first and the second lenses perform a symmetry concave, providing the wider field of view angle and the larger aperture. A structural design that allows lenses to restrain better aberrations performances of aspheric surfaces further provides high-definition and high imaging qualities.Type: ApplicationFiled: September 1, 2011Publication date: March 7, 2013Inventors: Shu-Tzu Lai, Fei-Hsin Tsai, Chun-Sheng Lee
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Patent number: 8369031Abstract: A single focus wide-angle lens module includes a fixed aperture diaphragm, a first, a second, a third and a forth lens arranged from an object side to an image side in the following sequence: the first lens, the fixed aperture diaphragm, the second lens, the third lens and the forth lens. The first lens has a negative refractive power, a concave surface toward the image side, and at least one aspheric surface. The second lens has a positive refractive power and a concave surface toward the object side, and said second lens is made of glass. Further, the third lens has a meniscus shape, a positive refractive power, a concave surface toward the object side, and at least one aspheric surface. The fourth lens has a positive refractive power, a convex surface toward the object side, and at least one aspheric surface.Type: GrantFiled: December 21, 2010Date of Patent: February 5, 2013Assignee: Newmax Technology Co., Ltd.Inventor: Fei-Hsin Tsai
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Patent number: 8325430Abstract: The present invention provides a five-piece imaging lens module including a fixed diaphragm and an optical module. The optical module includes five lenses arranged from an object side to an image side in a sequence of: the first lens, having a positive refractive power, a concave surface, and having at least one aspheric surface; the diaphragm; the second lens, having a negative refractive power, a concave surface, and having at least one aspheric surface; the third lens, having a positive refractive power, a convex surface, and having at least one aspheric surface; the fourth lens, having a concave surface, and having at least one aspheric surface; the fifth lens, having a convex on the object side near to the optic axis, and having at least one aspheric surface. With the fifth lens, the present invention provides a better resolving power.Type: GrantFiled: September 1, 2011Date of Patent: December 4, 2012Assignee: Newmax Technology Co., Ltd.Inventor: Fei-Hsin Tsai
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Publication number: 20120154905Abstract: A single focus wide-angle lens module includes a fixed aperture diaphragm, a first, a second, a third and a forth lens arranged from an object side to an image side in the following sequence: the first lens, the fixed aperture diaphragm, the second lens, the third lens and the forth lens. The first lens has a negative refractive power, a concave surface toward the image side, and at least one aspheric surface. The second lens has a positive refractive power and a concave surface toward the object side, and said second lens is made of glass. Further, the third lens has a meniscus shape, a positive refractive power, a concave surface toward the object side, and at least one aspheric surface. The forth lens has a positive refractive power, a convex surface toward the object side, and at least one aspheric surface.Type: ApplicationFiled: December 21, 2010Publication date: June 21, 2012Inventor: Fei-Hsin TSAI
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Patent number: 8031413Abstract: A single focus wide-angle lens module includes a fixed aperture diaphragm, a first lens, a second lens, a third lens and a fourth lens arranged from an object side to an image side in a sequence of: the first lens, the diaphragm, the second lens, the third lens and the fourth lens. The first lens has a concave surface on the image side and at least one aspheric surface. The second lens has a positive refractive power, a concave surface on the object side and at least one aspheric surface. The third lens has a meniscus shape, a negative refractive power, a concave surface on the object side and at least one aspheric surface. The fourth lens has a positive refractive power, a convex surface on the object side and at least one aspheric surface.Type: GrantFiled: December 11, 2009Date of Patent: October 4, 2011Assignee: Newmax Technology Co., LtdInventor: Fei-Hsin Tsai