Patents by Inventor Sian-Chih KE
Sian-Chih KE 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: 20240036292Abstract: An optical lens assembly includes, in order from an object side to an image side: a first lens; a stop; a second lens; a third lens; and an infrared bandpass filter, wherein a maximum field of view of the optical lens assembly is FOV, an f-number of the optical lens assembly is Fno, a radius of curvature of an object-side surface of the third lens is R5, a distance from an object-side surface of the first lens to an image plane along an optical axis is TL, an entrance pupil diameter of the optical lens assembly is EPD, a distance from the image-side surface of the first lens to the object-side surface of the second lens along the optical axis is T12, and the following conditions are satisfied: 19.82<FOV*Fno/(R5*TL)<50.37, and 6.58<EPD*TL/T12<24.94.Type: ApplicationFiled: October 14, 2022Publication date: February 1, 2024Inventors: Ching-Yun HUANG, Sian-Chih KE
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Patent number: 11474328Abstract: 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, a second lens element with a negative refractive power, a third lens element with a refractive power, a fourth lens element with a negative refractive power, a fifth lens element with a positive refractive power, and a sixth lens element with a negative refractive power. Such arrangements can provide a miniaturized six-piece optical lens system having a big stop and high image quality.Type: GrantFiled: March 17, 2020Date of Patent: October 18, 2022Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventor: Sian-Chih Ke
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Patent number: 11385444Abstract: A micro lens assembly for short-range imaging, in order from the object side to the image side: a flat panel, a first lens group, a stop, a second lens group, and an IR cut filter. Wherein a focal length of the first lens group combined is LF, a focal length of the second lens group combined is RF, a distance from an object to be imaged to an object-side surface of a first lens element of the first lens group along an optical axis is OTL, a distance from the object to be imaged to an image plane along the optical axis is TTL, and they satisfy the relations: LF>0; RF>0; 0.65<LF/RF<1.25; OTL<2.0 mm; TTL<10 mm Such a lens assembly can obtain higher short-range imaging effect while maintaining its miniaturization and can reduce the aberration in short-range imaging.Type: GrantFiled: May 7, 2020Date of Patent: July 12, 2022Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventor: Sian-Chih Ke
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Publication number: 20220099928Abstract: A seven-piece optical lens system, in order from the object side to the image side: 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 refractive power; a fifth lens element with a positive refractive power; a sixth lens element with a refractive power; and a seventh lens element with a negative refractive power. Such arrangements can provide a miniaturized seven-piece optical lens system having a big stop and high image quality.Type: ApplicationFiled: September 25, 2020Publication date: March 31, 2022Inventors: CHING-YUN HUANG, Chun-Sheng LEE, Sian-Chih KE, Shu-Tzu LAI
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Publication number: 20220099929Abstract: A seven-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; 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; a fifth lens element with a refractive power; a sixth lens element with a positive refractive power; and a seventh lens element with a negative refractive power. Such arrangements can provide a miniaturized seven-piece optical lens system having a big stop and high image quality.Type: ApplicationFiled: September 28, 2020Publication date: March 31, 2022Inventors: CHING-YUN HUANG, Chun-Sheng LEE, Sian-Chih KE, Shu-Tzu LAI
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Patent number: 11262560Abstract: A four-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 refractive power having an object-side surface being convex near an optical axis, a second lens element with a positive refractive power, a third lens element with a positive refractive power having an object-side surface being concave near the optical axis and an image-side surface being convex near the optical axis, a fourth lens element with a negative refractive power having an object-side surface being convex near the optical axis and an image-side surface being concave near the optical axis. Such arrangements can provide a four-piece infrared single wavelength lens system which has a wide field of view, large stop, short length and less distortion.Type: GrantFiled: July 12, 2018Date of Patent: March 1, 2022Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Sian-Chih Ke, Shu-Tzu Lai
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Publication number: 20210349288Abstract: A micro lens assembly for short-range imaging, in order from the object side to the image side: a flat panel, a first lens group, a stop, a second lens group, and an IR cut filter. Wherein a focal length of the first lens group combined is LF, a focal length of the second lens group combined is RF, a distance from an object to be imaged to an object-side surface of a first lens element of the first lens group along an optical axis is OTL, a distance from the object to be imaged to an image plane along the optical axis is TTL, and they satisfy the relations: LF>0; RF>0; 0.65<LF/RF<1.25; OTL<2.0 mm; TTL<10 mm Such a lens assembly can obtain higher short-range imaging effect while maintaining its miniaturization and can reduce the aberration in short-range imaging.Type: ApplicationFiled: May 7, 2020Publication date: November 11, 2021Inventor: Sian-Chih KE
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Publication number: 20210294075Abstract: 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, a second lens element with a negative refractive power, a third lens element with a refractive power, a fourth lens element with a negative refractive power, a fifth lens element with a positive refractive power, and a sixth lens element with a negative refractive power. Such arrangements can provide a miniaturized six-piece optical lens system having a big stop and high image quality.Type: ApplicationFiled: March 17, 2020Publication date: September 23, 2021Inventor: Sian-Chih KE
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Patent number: 10564396Abstract: A five-piece optical lens system with a wide field of view includes, in order from the object side to the image side: a first lens element with a negative refractive power, a stop, a second lens element with a positive refractive power, a third lens element with a negative refractive power, a fourth lens element with a positive refractive power, a fifth lens element with a negative refractive power. Such arrangements can provide a five-piece optical lens system which has a wide field of view, high resolution, short length and less distortion.Type: GrantFiled: June 21, 2017Date of Patent: February 18, 2020Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Shu-Tzu Lai, Sian-Chih Ke
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Publication number: 20200018932Abstract: A four-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 refractive power having an object-side surface being convex near an optical axis, a second lens element with a positive refractive power, a third lens element with a positive refractive power having an object-side surface being concave near the optical axis and an image-side surface being convex near the optical axis, a fourth lens element with a negative refractive power having an object-side surface being convex near the optical axis and an image-side surface being concave near the optical axis. Such arrangements can provide a four-piece infrared single wavelength lens system which has a wide field of view, large stop, short length and less distortion.Type: ApplicationFiled: July 12, 2018Publication date: January 16, 2020Inventors: FEI-HSIN TSAI, SIAN-CHIH KE, SHU-TZU LAI
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Publication number: 20180372995Abstract: A five-piece optical lens system with a wide field of view includes, in order from the object side to the image side: a first lens element with a negative refractive power, a stop, a second lens element with a positive refractive power, a third lens element with a negative refractive power, a fourth lens element with a positive refractive power, a fifth lens element with a negative refractive power. Such arrangements can provide a five-piece optical lens system which has a wide field of view, high resolution, short length and less distortion.Type: ApplicationFiled: June 21, 2017Publication date: December 27, 2018Inventors: Fei-Hsin TSAI, Shu-Tzu LAI, SIAN-CHIH KE
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Patent number: 10101563Abstract: 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, a second lens element with a negative refractive power, a third lens element with a negative refractive power, a fourth lens element with a negative refractive power, a fifth lens element with a positive refractive power. Such arrangements not only can be applied to a portable electronic product, but also has a long focal length, high pixel and low height.Type: GrantFiled: July 5, 2017Date of Patent: October 16, 2018Assignee: NEXMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Sian-Chih Ke
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Patent number: 10101561Abstract: A five-piece optical imaging lens, in order from an object side to an image side, includes: an aperture stop; a first lens element with a positive refractive power having an object-side surface being convex near an optical axis and the image-side surface being concave near the optical axis; a second lens element with a negative refractive power having an object-side surface being convex near the optical axis and an image-side surface being concave near the optical axis; a third lens element with a negative refractive power having an image-side surface being concave near the optical axis; a fourth lens element with a positive refractive power having an object-side surface being concave near the optical axis and an image-side surface being convex near the optical axis; a fifth lens element with a negative refractive power having an image-side surface being concave near the optical axis.Type: GrantFiled: October 20, 2016Date of Patent: October 16, 2018Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Shu-Tzu Lai, Sian-Chih Ke
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Publication number: 20180113281Abstract: A five-piece optical imaging lens, in order from an object side to an image side, includes: an aperture stop; a first lens element with a positive refractive power having an object-side surface being convex near an optical axis and the image-side surface being concave near the optical axis; a second lens element with a negative refractive power having an object-side surface being convex near the optical axis and an image-side surface being concave near the optical axis; a third lens element with a negative refractive power having an image-side surface being concave near the optical axis; a fourth lens element with a positive refractive power having an object-side surface being concave near the optical axis and an image-side surface being convex near the optical axis; a fifth lens element with a negative refractive power having an image-side surface being concave near the optical axis.Type: ApplicationFiled: October 20, 2016Publication date: April 26, 2018Inventors: Fei-Hsin TSAI, Shu-Tzu LAI, Sian-Chih KE
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Patent number: 9817211Abstract: 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: GrantFiled: December 30, 2015Date of Patent: November 14, 2017Assignee: NEWMAX TECHNOLOGY CO., LTD.Inventors: Fei-Hsin Tsai, Sian-Chih Ke
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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