Patents by Inventor Hsi-Ling Chang
Hsi-Ling Chang 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: 11947092Abstract: A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, a sixth lens group, and a first reflective element. The first and third lens groups are with negative refractive power. The second and fourth lens groups are with positive refractive power. The fifth and sixth lens groups are with refractive power. The first, second, third, fourth, fifth, and sixth lens groups are arranged in order from a first side to a second side along an axis. The first reflective element includes a first reflective surface. A light from the first side sequentially passes through the first, second, third, fourth, fifth, and sixth lens groups to the second side. The first reflective element is disposed between the first lens group and the sixth lens group.Type: GrantFiled: January 3, 2022Date of Patent: April 2, 2024Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Hsi-Ling Chang, Guo-Yang Wu
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Patent number: 11921260Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the first, second, third, fourth, fifth, and sixth lenses are arranged in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with positive refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second, third, and fourth lenses are with refractive power. The fifth lens is with positive refractive power and includes a convex surface facing the image side. The sixth lens is with negative refractive power and includes a concave surface facing the image side. The lens assembly satisfies: 3<D1/T6<9; wherein D1 is an effective optical diameter of the convex surface of the first lens and T6 is a thickness of the sixth lens.Type: GrantFiled: August 23, 2019Date of Patent: March 5, 2024Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Chien-Hung Chen, Hsi-Ling Chang
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Publication number: 20240019681Abstract: A lens device includes a lens module, an image forming unit and a light path turning module. The lens module includes one or plural lenses. The light path turning module is disposed between the lens module and the image forming unit. The light exiting from the lens module is reflected at least twice by the light path turning module.Type: ApplicationFiled: June 16, 2023Publication date: January 18, 2024Inventors: Guo-Quan Lin, Hsi-Ling Chang, Chien-Hung Chen, Bo-Yan Chen, Ming-Huang Tseng, Ming-Wei Shih
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Publication number: 20240019667Abstract: A lens assembly includes a lens unit and a first reflective element. The lens unit includes a plurality of lenses and the back focal length of the lens unit is longer than the total length of the lens unit. The first reflective element includes a first surface, a first prism surface, and a bottom surface, and the first prism surface connects the first surface and the bottom surface, respectively. The lens unit and the first reflective element are arranged in order from an object side along a first axis. A light from the object side enters the first reflective element from the first surface and then guided to the first prism surface.Type: ApplicationFiled: May 30, 2023Publication date: January 18, 2024Inventors: Hsi-Ling Chang, Chien-Hung Chen
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Patent number: 11852849Abstract: A camera device includes a plurality of lenses and an annular body. The annular body is disposed between the object side and the plurality of lenses, between the plurality of lenses, or between the plurality of lenses and the image side. The annular body includes an annular main body, an outer circumferential portion, and an inner circumferential portion, wherein the annular main body connects to the outer circumferential portion and the inner circumferential portion, the annular main body is disposed between the outer circumferential portion and the inner circumferential portion, and the inner circumferential portion is non-circular and surrounds the optical axis to form a hole. The camera device satisfies: Dx>Dy; where Dx is a maximum dimension of the hole through which the optical axis passes, and Dy is a minimum dimension of the hole through which the optical axis passes.Type: GrantFiled: November 18, 2021Date of Patent: December 26, 2023Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Ming-Wei Shih, Hsi-Ling Chang, Chien-Hung Chen
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Publication number: 20230213741Abstract: A lens assembly includes a first lens group, a second lens group, and a third lens group, all of which are arranged in order from a first side to a second side along an optical axis. The first lens group is with positive refractive power. The second lens group is with positive refractive power. The third lens group is with positive refractive power. The first lens group is fixed, the second lens group can move along the optical axis, and the third lens group can move along the optical axis, so that the lens assembly is zoomed from a wide-angle end to a telephoto end to change an effective focal length.Type: ApplicationFiled: December 2, 2022Publication date: July 6, 2023Inventors: Chun-Yang Yao, Hsi-Ling Chang
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Patent number: 11668902Abstract: A lens assembly includes a first lens, a second lens, a third lens, and a fourth lens. The first lens is with positive refractive power and includes a concave surface facing an object side and a convex surface facing an image side. The second lens is with negative refractive power and includes a concave surface facing the object side. The third lens is with positive refractive power. The fourth lens is with refractive power and includes a concave surface facing the image side. The first lens, the second lens, the third lens, and the fourth lens are arranged in order from the object side to the image side along an optical axis. The lens assembly satisfies: TTL/f>1.2; wherein TTL is a total length of optical system of the lens assembly and f is an effective focal length of the lens assembly.Type: GrantFiled: August 27, 2020Date of Patent: June 6, 2023Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Guo-Yang Wu, Bo-Yan Chen, Hsi-Ling Chang, Chun-Yang Yao, Chien-Hung Chen
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Publication number: 20230108477Abstract: A lens assembly includes a first, second, third, and fourth in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with positive refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens is with negative refractive power. The third lens is with positive refractive power. The fourth lens is a meniscus lens with refractive power. The lens assembly satisfies at least one of following conditions: ?0.1?R11/R42?0.53; 2?TTL/SD4?7; 0.1?SD1/f?0.6.Type: ApplicationFiled: August 3, 2022Publication date: April 6, 2023Inventors: Hsi-Ling CHANG, Guo-Yang WU, Chien-Hung CHEN, Ming-Huang TSENG
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Patent number: 11536933Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is with positive refractive power and includes a convex surface facing the object side. The second lens is with negative refractive power and includes a concave surface facing the image side. The third lens is with refractive power and includes a convex surface facing the image side. The fourth, fifth, and sixth lenses are with refractive power. The lens assembly satisfies: 2 mm<f5+f6<35 mm, wherein f5 is an effective focal length of the fifth lens and f6 is an effective focal length of the sixth lens.Type: GrantFiled: August 13, 2020Date of Patent: December 27, 2022Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Po-Yuan Shih, Bo-Yan Chen, Hsi-Ling Chang
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Patent number: 11513317Abstract: A lens assembly is configured to be disposed under a cover glass, in a gap region and outside a display region, including a plurality of lenses, a reflector and an image sensor. The lenses, the reflector and the image sensor are sequentially arranged from an object side to an image side along an optical axis. One of the lenses is adjacent to the object side, has a minimum diameter of clear aperture, and has an outer circumferential portion which is non-circular. The lens assembly satisfies at least one of following conditions: BFL?VL and BFL?0.6×DL where BFL is a back focal length of the lens assembly, VL is a minimum side length of the image sensor, and DL is a diagonal length of the image sensor. A lens device includes a cover glass, a case, a display panel and the lens assembly.Type: GrantFiled: August 10, 2020Date of Patent: November 29, 2022Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Po-Jen Wang, Hsi-Ling Chang, Guo-Yang Wu, Ming-Huang Tseng
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Patent number: 11480760Abstract: A lens assembly includes a lens body, a first lens, a second lens, a third lens and a fourth lens, wherein the lens body includes a lens barrel, and the first lens, the second lens, the third lens and the fourth lens are fixed in the lens body in order from an object side to an image side along an optical axis. The first lens is closest to the object side and includes an object side surface, the object side surface is protruded along the optical axis, the first lens further includes a first portion close to the object side and a second portion close to the image side, and a diameter of the first portion is smaller than a diameter of the second portion so that a step is formed between the first portion and the second portion.Type: GrantFiled: March 30, 2020Date of Patent: October 25, 2022Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Guo-Quan Lin, Hsi-Ling Chang, Bo-Yan Chen, Ming-Huang Tseng, Guo-Yang Wu
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Publication number: 20220326486Abstract: A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, and a reflective element. The first lens group is with refractive power. The second lens group is with positive refractive power. The third lens group is with positive refractive power. The fourth lens group is with refractive power. The reflective element includes a reflective surface. A light from an object sequentially passes through the first lens group, the second lens group, the third lens group, and the fourth lens group to an image side along an axis. The reflective element is disposed between an object side and the image side along the axis. Intervals of the lens groups are changeable when the lens assembly zooms from a wide-angle end to a telephoto end.Type: ApplicationFiled: April 1, 2022Publication date: October 13, 2022Inventors: Hsi-Ling Chang, Chien-Hung Chen, Ming-Huang Tseng, Guo-Yang Wu, Bo-Yan Chen
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Patent number: 11428902Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens is with positive refractive power and includes a convex surface facing an object side and a concave surface facing an image side. The second lens is with positive refractive power. The third lens is with negative refractive power and includes a convex surface facing the object side. The fourth lens is with negative refractive power and includes a concave surface facing the object side. The fifth lens is with positive refractive power and includes a convex surface facing the image side.Type: GrantFiled: October 28, 2019Date of Patent: August 30, 2022Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Hsi-Ling Chang, Guo-Yang Wu
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Publication number: 20220244509Abstract: A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, a sixth lens group, and a first reflective element. The first and third lens groups are with negative refractive power. The second and fourth lens groups are with positive refractive power. The fifth and sixth lens groups are with refractive power. The first, second, third, fourth, fifth, and sixth lens groups are arranged in order from a first side to a second side along an axis. The first reflective element includes a first reflective surface. A light from the first side sequentially passes through the first, second, third, fourth, fifth, and sixth lens groups to the second side. The first reflective element is disposed between the first lens group and the sixth lens group.Type: ApplicationFiled: January 3, 2022Publication date: August 4, 2022Inventors: Hsi-Ling CHANG, Guo-Yang WU
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Patent number: 11385437Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is with positive refractive power and includes a convex surface facing the object side. The second lens is with refractive power. The third lens is with negative refractive power. The fourth lens is with positive refractive power and includes a convex surface facing the image side. The fifth lens is with negative refractive power and includes a concave surface facing the image side. The lens assembly satisfies: 1.5<f/D1<3.5; wherein f is an effective focal length of the lens assembly and Di is an effective optical diameter of the first lens.Type: GrantFiled: November 26, 2019Date of Patent: July 12, 2022Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Bo-Yan Chen, Hsi-Ling Chang
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Publication number: 20220075102Abstract: A camera device includes a plurality of lenses and an annular body. The annular body is disposed between the object side and the plurality of lenses, between the plurality of lenses, or between the plurality of lenses and the image side. The annular body includes an annular main body, an outer circumferential portion, and an inner circumferential portion, wherein the annular main body connects to the outer circumferential portion and the inner circumferential portion, the annular main body is disposed between the outer circumferential portion and the inner circumferential portion, and the inner circumferential portion is non-circular and surrounds the optical axis to form a hole. The camera device satisfies: Dx>Dy; where Dx is a maximum dimension of the hole through which the optical axis passes, and Dy is a minimum dimension of the hole through which the optical axis passes.Type: ApplicationFiled: November 18, 2021Publication date: March 10, 2022Inventors: Ming-Wei Shih, Hsi-Ling Chang, Chien-Hung Chen
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Patent number: 11243378Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens are arranged in order from an object side to an image side along an optical axis. The first lens has positive refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens has negative refractive power. The third lens has positive refractive power and includes a convex surface facing the object side. The fourth lens has positive refractive power. The fifth lens has negative refractive power and includes a concave surface facing the image side. The lens assembly satisfies 5<(R11+R12)/(R21+R22)<15.Type: GrantFiled: May 9, 2019Date of Patent: February 8, 2022Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Ming-Huang Tseng, Hsi-Ling Chang, Chien-Hung Chen
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Publication number: 20220026691Abstract: A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group, all of which are arranged in order from a first side to a second side along an axis. The first lens group is with negative refractive power. The second lens group is with positive refractive power. The third lens group is with refractive power. The fourth lens group is with refractive power. The fifth lens group is with refractive power. The lens assembly further includes a first reflective element disposed between the first lens group and the fifth lens group, wherein the first reflective element includes a first reflective surface.Type: ApplicationFiled: June 30, 2021Publication date: January 27, 2022Inventors: Hsi-Ling Chang, Chun-Yang Yao, Ming-Huang Tseng, Chien-Hung Chen
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Publication number: 20210405326Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a reflective element. The first lens is with refractive power and includes a concave surface facing an object side along an axis. The second lens is with refractive power and includes a convex surface facing the object side along the axis. The third, fourth, and fifth lenses are with refractive power. The reflective element includes a reflective surface. The first, second, third, fourth, and fifth lenses are arranged in order from the object side to an image side along the axis. The reflective element is disposed between the first lens and the fifth lens. The lens assembly satisfies: 2 mm<L<6 mm; wherein L is an interval from an object side surface of the first lens to the reflective surface along the axis.Type: ApplicationFiled: June 3, 2021Publication date: December 30, 2021Inventors: Chien-Hung Chen, Hsi-Ling Chang, Guo-Yang Wu, Bo-Yan Chen
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Patent number: 11209578Abstract: A camera device includes a plurality of lenses and an annular body having a fixed hole. The plurality of lenses and the annular body are arranged between an object side and an image side along an optical axis. The annular body includes an annular main body, an outer circumferential portion, and an inner circumferential portion, wherein the annular main body connects to the outer circumferential portion and the inner circumferential portion, and the inner circumferential portion is non-circular and surrounds the optical axis to form the fixed hole. The camera device satisfies: EFL/?{square root over (4A/?)}=(EFL/Dx+EFL/Dy)×K1; K1?0.49, where EFL is an effective focal length of the camera device, A is an area of the fixed hole, K1 is a coefficient, Dx is a maximum dimension of the fixed hole through which the optical axis passes, and Dy is a minimum dimension of the fixed hole through which the optical axis passes.Type: GrantFiled: August 21, 2019Date of Patent: December 28, 2021Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.Inventors: Ming-Wei Shih, Hsi-Ling Chang, Chien-Hung Chen