Patents Assigned to KINKO OPTICAL CO., LTD.
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Patent number: 10197767Abstract: A five-piece wide-angle lens module includes, from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens has negative power, a convex surface on the object side and a concave surface on the image side. The second lens, the third lens and the fifth lens all have positive power and two convex surfaces on both sides. The fourth lens has negative power and two concave surfaces on both sides. The five-piece wide-angle lens module further satisfies the following relationship: 30?(T5+T7+T9)/(T6+T8+T10)?10. Thereby, the incident light can have smaller refraction angle when transmitting through the lenses, and thus the five-piece wide-angle lens module can be provided with characteristics of low manufacturing sensitivity, wide angle, low distortion, high photosensitivity efficiency and high image quality.Type: GrantFiled: August 22, 2016Date of Patent: February 5, 2019Assignee: KINKO-OPTICAL CO., LTDInventor: Yi-Chih Lin
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Patent number: 10120165Abstract: A wide angle six-piece lens includes a first lens having a negative refractive power and an image side as a concave surface, a second lens having a positive refractive power and an object side as a convex surface, an aperture, a third lens having a positive refractive power and an image side as a convex surface, a fourth lens having a positive refractive power and an object surface and an image surface as convex surfaces, a fifth lens having a negative refractive power and an object side as a concave surface, and a sixth lens having a positive refractive power and an object side as a convex surface. The overall effective focal length of the wide angle six-piece lens is f, the focal length of the third lens is f3, and an equation 0.29<f/f3<0.36 is satisfied. As such, a wide angle system is formed and aberration is eliminated.Type: GrantFiled: August 16, 2016Date of Patent: November 6, 2018Assignee: KINKO OPTICAL CO., LTD.Inventor: See-Ying Chen
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Patent number: 9958647Abstract: A six-piece wide-angle lens module includes, from an object side to an image side, a first lens group, an aperture and a second lens group. The first lens group consists of a negative first lens, a negative second lens and a positive third lens, each lens having an object side surface facing the object side and an image side surface facing the image side, the first lens is a meniscus lens having a convex object side surface, the second lens has a concave image side surface, the third lens has a convex object side surface. The second lens group consists of a positive fourth lens, a negative fifth lens and a positive sixth lens, the fourth lens is a biconvex lens, the fifth lens has a concave image side surface, the sixth lens has a convex object side surface, the second lens group has a positive focal length.Type: GrantFiled: August 31, 2016Date of Patent: May 1, 2018Assignee: Kinko-Optical Co., Ltd.Inventor: Sze-Ying Chen
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Patent number: 9864170Abstract: A miniature image pickup lens includes a first lens, a second lens, an aperture, a third lens, a fourth lens, and a fifth lens arranged in sequence along an optical axis from an object side to an image side. The first lens is a negative meniscus lens with a convex surface towards the object side and a concave surface towards the image side. The second lens is a positive lens with a convex surface towards the object side. The third lens is a positive biconvex lens, and the fourth lens is a negative biconcave lens. The fifth lens has a convex surface towards the object side.Type: GrantFiled: June 26, 2013Date of Patent: January 9, 2018Assignee: Kinko Optical Co., Ltd.Inventors: Sze-Ying Chen, Yi-Fang Chen
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Patent number: 9261680Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides. The fifth lens has a negative refractive power. Thereby, the five-piece wide-angle lens module can provide good image quality even in the environment with severe temperature changes.Type: GrantFiled: October 7, 2014Date of Patent: February 16, 2016Assignee: KINKO-OPTICAL CO., LTD.Inventor: Yi-Zhi Lin
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Patent number: 9244255Abstract: A miniature image pickup lens includes a first lens, a second lens, an aperture, a third lens, a fourth lens, and a fifth lens in sequence along an optical axis from an object side to an image side. The first lens is a negative meniscus lens with a convex aspheric surface toward the object side and a concave aspheric surface toward the image side. The second lens has both aspheric surfaces including a convex surface toward the object side. The third lens is a positive biconvex lens. The fourth lens is a positive biconvex lens. The fifth lens is a negative lens with a concave surface toward the object side.Type: GrantFiled: March 18, 2013Date of Patent: January 26, 2016Assignee: KINKO OPTICAL CO., LTD.Inventors: Sze-Ying Chen, Yi-Fang Chen
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Publication number: 20150077861Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides respectively. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides respectively. The fifth lens has a negative refractive power. To provide good image quality, the five-piece wide-angle lens module satisfies the following relationships: ?0.6<f2/f3<?0.3, and ?0.25<f4/f5<?0.15.Type: ApplicationFiled: December 19, 2013Publication date: March 19, 2015Applicant: Kinko-Optical Co., Ltd.Inventors: Yi-Zhi LIN, Sze-Ying CHEN, Yi-Fang CHEN
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Publication number: 20140268369Abstract: A miniature image pickup lens includes a first lens, a second lens, an aperture, a third lens, a fourth lens, and a fifth lens in sequence along an optical axis from an object side to an image side. The first lens is a negative meniscus lens with a convex aspheric surface toward the object side and a concave aspheric surface toward the image side. The second lens has both aspheric surfaces including a convex surface toward the object side. The third lens is a positive biconvex lens. The fourth lens is a positive biconvex lens. The fifth lens is a negative lens with a concave surface toward the object side.Type: ApplicationFiled: March 18, 2013Publication date: September 18, 2014Applicant: KINKO OPTICAL CO., LTD.Inventors: Sze-Ying CHEN, Yi-Fang CHEN