Patents by Inventor Jiaying Li
Jiaying Li 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: 20150298465Abstract: A near-infrared laser focusing lens and a laser printing device are provided. The lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens (L1, L2, L3, L4, L5) which are coaxially arranged along a transmission direction of incident light rays, wherein the first lens (L1) is a negative plane-concave lens; the second lens and the third lens (L2, L3) are positive biconvex lenses; and the fourth lens and the fifth lens (L4, L5) are positive meniscus lenses; and a concave surface (S2) of the first lens (L1) is opposite to the second lens (L2), and the middle parts of the fourth lens and the fifth lens (L4, L5) both reversely protrude towards the transmission direction of light beams. After the shapes and the relative locations of the lenses are designed, the near infrared light can be clearly imaged, and the geometrical aberration of the lens can be effectively corrected, so as to obtain a clear flat field.Type: ApplicationFiled: October 31, 2012Publication date: October 22, 2015Inventors: Jiaying Li, Chaoming Zhou, Bo Sun, Yunfeng Gao
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Publication number: 20150293333Abstract: An F? lens and a laser processing device for far-infrared laser processing are provided. The F? lens for far-infrared laser processing comprises a first lens (L1), a second lens (L2) and a third lens (L3) which are coaxially arranged successively along a transmission direction of incident light beams, wherein the first lens is a negative meniscus lens, and the second lens and the third lens are positive meniscus lenses; and all the middle parts of the first lens, the second lens and the third lens protrude towards the transmission direction of incident light beams. The F? lens can improve the imaging quality and the resolution distance, effectively calibrate the astigmatism and distortion of the lens, reduce the influence of high-order aberrations, and has a high degree of energy concentration of laser focus points and high processing accuracy, thereby meeting the requirements for cutting or drilling. The F? lens is miniaturized, so that the volume of the lens is effectively controlled, and costs are reduced.Type: ApplicationFiled: October 31, 2012Publication date: October 15, 2015Inventors: Jiaying Li, Chaoming Zhou, Bo Sun, Yunfeng Gao
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Publication number: 20150293334Abstract: A zoom lens assembly for monitor and a monitoring device are provided. The lens assembly comprises a first to a thirteenth lenses (L1-L13) arranged successively coaxially along the transmission direction of an incident light beam. The first, the eighth, the tenth and the twelfth lenses (L1, L8, L10 and L12) are biconvex positive lenses; the second, the ninth and the eleventh lenses (L2, L9 and L11) are falcate negative lenses; the third, the fourth, the sixth and the thirteenth lenses (L3, L4, L6 and L13) are falcate positive lenses; the fifth lens (L5) is a biconcave negative lens; and the seventh lens (L7) is a plano-concave negative lens. The second and the third lenses (L2 and L3) are closely adhered to each other, and the sixth and the seventh lenses (L6 and L7) are closely adhered to each other.Type: ApplicationFiled: October 31, 2012Publication date: October 15, 2015Inventors: Jiaying Li, Yunfeng Gao
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Publication number: 20150268454Abstract: An F? lens for extreme ultraviolet laser marking assembly and a laser processing device are provided. The lens assembly includes a first lens (L1), a second lens (L2), a third lens (L3), and a fourth lens (L4) successively coaxially arranged along a transmission direction of an incident laser. The first lens (L1) is a biconcave negative lens; the second lens (L2) is a falcate negative lens; the third lens (L3) is a falcate positive lens; and the fourth lens (L4) is a biconvex positive lens; and an intermediate part of the second lens (L2) and the third lens (L3) are both convex toward a transmission direction of the laser. A proportion of the refractive index of the first, the second, the third and the fourth lenses to the abbe number is 1.476/68, with a tolerance of 5%. By means of the design of the four lenses and relative positions therebetween, astigmatism and distortion are effectively corrected, and the focusing degree of the energy is high.Type: ApplicationFiled: October 31, 2012Publication date: September 24, 2015Inventors: Jiaying Li, Chaoming Zhou, Yunfeng Gao
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Publication number: 20150205136Abstract: A green laser zoom beam expanding system, applied to the field of laser processing, and comprising a first lens, a second lens and a third lens (L1, L2, L3). The first lens and the third lens (L1, L3) are plane-convex plus lenses, and the second lens (L2) is a meniscus minus lens. The first lens, the second lens and the third lens (L1, L2, L3) respectively comprise a first surface and a second surface (S1, S2), a third surface and a fourth surface (S3, S4) as well as a fifth surface and a sixth surface (S5, S6). The radiuses of curvature of the first to sixth surfaces (S1, S2, S3, S4, S5, S6) are ?, ?29.8, 7.2, 1.6, ?, ?100. The center thickness of the first to third lenses (L1, L2, L3) is 2, 1, 4. The outer diameters of the first to third lenses (L1, L2, L3) are 10, 3, 34. Proportions of the refractive indexes to the Abbe numbers of the first to third lenses (L1, L2, L3) are 1.8:25, 1.48:68, and 1.8:25. An interval (d2) between the second surface and the third surface (S2, S3) is 8-28.Type: ApplicationFiled: June 25, 2013Publication date: July 23, 2015Applicant: HANS LASER TECHNOLOGY INDUSTRY GROUP CO., LTD.Inventors: Jiaying Li, Chaoming Zhou, Bo Sun, Yuging Chen, Yunfeng Gao
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Publication number: 20150192778Abstract: An ultraviolet laser zoom beam expanding system, applied to the field of laser processing, includes a first lens, a second lens, and a third lens (L1, L2, L3). The first lens and the third lens (L1, L3) are plane-convex plus lenses, and the second lens (L2) is a convex-concave minus lens. The first lens, the second lens and the third lens (L1, L2, L3) respectively comprise a first surface and a second surface (S1, S2), a third surface and a fourth surface (S3, S4) as well as a fifth surface and a sixth surface (S5, S6). The radiuses of curvature of the first to sixth surfaces (S1, S2, S3, S4, S5, S6) are ?, ?30, 10, 2.2, ?, ?81. The center thickness of the first to third lenses (L1, L2, L3) is 2, 1, 4. The outer diameters of the first to third lenses (L1, L2, L3) are 10, 3, 34. Proportions of the refractive indexes to the abbe numbers of the first to third lenses (L1, L2, L3) are 1.57:41, 1.48:68, and 1.57:41. An interval (d2) between the second surface and the third surface (S2, S3) is 6-37.Type: ApplicationFiled: June 24, 2013Publication date: July 9, 2015Applicant: HAN'S CNC SCIENCE AND TECHNOLOGY CO., LTD.Inventors: Jiaying Li, Chaoming Zhou, Bo Sun, Yuqing Chen, Yunfeng Gao
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Publication number: 20150185485Abstract: An infrared laser zoom beam expanding system, applied to the field of laser processing, and comprising a first lens, a second lens and a third lens. The first lens and the third lens are plane-convex plus lenses, and the second lens is a meniscus minus lens. The first lens, the second lens and the third lens respectively comprise a first surface and a second surface, a third surface and a fourth surface as well as a fifth surface and a sixth surface. The radiuses of curvature of the first to sixth surfaces are ?, ?27, 10, 1.7, ?, ?103. The center thickness of the first to third lenses is 2, 1, 4. The outer diameters of the first to third lenses are 10, 3, 34. Proportions of the refractive indexes to the Abbe numbers of the first to third lenses are 1.8:25, 1.48:68, and 1.8:25. A distance between the second surface and the third surface is 10-27. An distance between the fourth surface and the fifth surface is 119-125, The unit is millimeter, and a tolerance is 5%.Type: ApplicationFiled: June 24, 2013Publication date: July 2, 2015Inventors: Jiaying Li, Chaoming Zhou, Bo Sun, Yuqing Chen, Yunfeng Gao
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Patent number: 9069170Abstract: An ultraviolet laser zoom beam expanding system, applied to the field of laser processing, includes a first lens, a second lens, and a third lens (L1, L2, L3). The first lens and the third lens (L1, L3) are plane-convex plus lenses, and the second lens (L2) is a convex-concave minus lens. The first lens, the second lens and the third lens (L1, L2, L3) respectively comprise a first surface and a second surface (S1, S2), a third surface and a fourth surface (S3, S4) as well as a fifth surface and a sixth surface (S5, S6). The radiuses of curvature of the first to sixth surfaces (S1, S2, S3, S4, S5, S6) are ?, ?30, 10, 2.2, ?, ?81. The center thickness of the first to third lenses (L1, L2, L3) is 2, 1, 4. The outer diameters of the first to third lenses (L1, L2, L3) are 10, 3, 34. Proportions of the refractive indexes to the abbe numbers of the first to third lenses (L1, L2, L3) are 1.57:41, 1.48:68, and 1.57:41. An interval (d2) between the second surface and the third surface (S2, S3) is 6-37.Type: GrantFiled: June 24, 2013Date of Patent: June 30, 2015Assignees: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., HAN'S CNC SCIENCE AND TECHNOLOGY CO., LTDInventors: Jiaying Li, Chaoming Zhou, Bo Sun, Yuqing Chen, Yunfeng Gao
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Patent number: 8363338Abstract: A fixed focal length optical lens system includes a lens group and a diaphragm. The diaphragm is located in front of the lens group. The lens group includes three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system. The first lens is a plano-concave negative lens, the second lens is a positive meniscus lens, and the third lens is a double convex positive lens. All of the curved surfaces of the second lens are bent in the direction towards the diaphragm, wherein, the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and which satisfies the following requirement: ?0.6<f1/f<?0.4; 1.0<f2/f<1.2; 0.6<f3/f<0.8.Type: GrantFiled: October 28, 2010Date of Patent: January 29, 2013Assignee: Han's Laser Technology Co., Ltd.Inventor: Jiaying Li
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Patent number: 8339717Abstract: An optical lens includes a lens group and a diaphragm. The diaphragm is located in front of the lens group. The lens group includes three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system, wherein the first lens is a negative meniscus lens, the second lens is a positive meniscus lens, the third lens is a positive meniscus lens, all the curved surfaces of the first lens, the second lens and the third lens are bent in the direction towards the diaphragm, and the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and the ratio between the focal length of each lens and the focal length f of the entire optical system satisfies the following requirement: ?0.7 f?0.,4; 0.9 f f0.9.Type: GrantFiled: October 28, 2010Date of Patent: December 25, 2012Assignee: Han's Laser Technology Co., Ltd.Inventor: Jiaying Li
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Patent number: 8331044Abstract: A fixed focal length optical lens system includes a lens group and a diaphragm which is located in front of the lens group. The lens group includes three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system, wherein the first lens is a negative meniscus lens, the second lens is a positive meniscus lens, the third lens is a plano-convex or positive meniscus lens. All the curved surfaces of the first lens and the second lens are bent in the direction towards the diaphragm, and the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and which satisfies the following requirement: ?0.6<f1/f<?0.4; 0.5<f2/f<0.8; 0.9<f3/f<1.2.Type: GrantFiled: October 28, 2010Date of Patent: December 11, 2012Assignee: Han's Laser Technology Co., Ltd.Inventor: Jiaying Li
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Patent number: 8331043Abstract: An optical lens includes a lens group and a diaphragm which is located in front of the lens group. The lens group includes three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system. The first lens is a double concave negative lens, the second lens is a positive meniscus lens, and the third lens is a double convex positive lens. A concave surface of the second lens is towards the diaphragm, and the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and which satisfies the following requirement: ?0.7<f1/f<?0.5; 1.0<f2/f<1.3; 0.8<f3/f<1.0.Type: GrantFiled: October 28, 2010Date of Patent: December 11, 2012Assignee: Han's Laser Technology Co., Ltd.Inventor: Jiaying Li
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Publication number: 20110102904Abstract: The present invention relates to the field of laser machining and provides an optical lens, comprising a lens group and a diaphragm. The diaphragm is located in front of the lens group. The lens group comprises three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system. The first lens is a plano-concave negative lens, the second lens is a positive meniscus lens, and the third lens is a double convex positive lens. All of the curved surfaces of the second lens are bent in the direction towards the diaphragm, wherein, the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and the ratio between the focal length of each lens and the focal length f of the entire optical system satisfies the following requirement: ?0.6<f1/f<?0.4; 1.0<f2/f<1.2; 0.6<f3/f<0.8.Type: ApplicationFiled: October 28, 2010Publication date: May 5, 2011Applicant: HAN'S LASER TECHNOLOGY CO., LTD.Inventor: Jiaying LI
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Publication number: 20110096405Abstract: The present invention relates to the field of laser machining and provides an optical lens, comprising a lens group and a diaphragm which is located in front of the lens group. The lens group comprises three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system. The first lens is a double concave negative lens, the second lens is a positive meniscus lens, and the third lens is a double convex positive lens. Both of the curved surfaces of the second lens are bent in the direction towards the diaphragm, and the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and the ratio between the focal length of each lens and the focal length f of the entire optical system satisfies the following requirement: ?0.7<f1/f<?0.5; 1.0<f2/f<1.3; 0.8<f3/f<1.0.Type: ApplicationFiled: October 28, 2010Publication date: April 28, 2011Applicant: HAN'S LASER TECHNOLOGY CO., LTD.Inventor: Jiaying LI
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Publication number: 20110043931Abstract: The present invention relates to the field of laser machining and provides an optical lens, comprising a lens group and a diaphragm which is located in front of the lens group. The lens group comprises three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system, wherein the first lens is a negative meniscus lens, the second lens is a positive meniscus lens, the third lens is a plano-convex or positive meniscus lens. All the curved surfaces of the first lens and the second lens are bent in the direction towards the diaphragm, and the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and the ratio between the focal length of each lens and the focal length f of the entire optical system satisfies the following requirement: ?0.6<f1/f<?0.4; 0.5<f2/f<0.8; 0.9<f3/f<1.2.Type: ApplicationFiled: October 28, 2010Publication date: February 24, 2011Applicant: HAN'S LASER TECHNOLOGY CO., LTD.Inventor: Jiaying Li
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Publication number: 20110038062Abstract: The present invention relates to the field of laser machining and provides an optical lens, comprising a lens group and a diaphragm. The diaphragm is located in front of the lens group. The lens group comprises three lenses, respectively the first, the second and the third lens, which are sequentially arranged as a “negative-positive-positive” separated focal power system, wherein the first lens is a negative meniscus lens, the second lens is a positive meniscus lens, the third lens is a positive meniscus lens, all the curved surfaces of the first lens, the second lens and the third lens are bent in the direction towards the diaphragm, and the focal length of the entire optical system is f, the focal lengths of the first, the second and the third lens are respectively f1, f2, and f3, and the ratio between the focal length of each lens and the focal length f of the entire optical system satisfies the following requirement: ?0.7<f1/f<?0.4; 0.9<f2/f<1.1; 0.7<f3/f<0.9.Type: ApplicationFiled: October 28, 2010Publication date: February 17, 2011Applicant: HAN'S LASER TECHNOLOGY CO., LTD.Inventor: Jiaying LI
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Patent number: 6482254Abstract: The present invention is directed to an insert for a vacuum deaerator for receiving a liquid having gas entrained therein and distributing the liquid to a gas-disentrainment surface, with distributing structure being connected to the receiving structure to permit the liquid to flow from the receiving structure to the distributing structure, and at least one fin attached to and extending downwardly from the distributing structure to receive the liquid from the distributing structure and to provide a gas-disentrainment surface to aid removal of entrained gas from the liquid.Type: GrantFiled: November 14, 2000Date of Patent: November 19, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: James Edward Bono, Jiaying Li Mallon