公开(公告)号：US09864171B2

公开(公告)日：2018-01-09

申请号：US14834629

申请日：2015-08-25

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Dung-Yi Hsieh ,  Chun-Yen Chen ,  Chun-Che Hsueh ,  Hsin-Hsuan Huang

IPC: G02B13/00 ,  G02B9/60

CPC classification number: G02B13/0045 ,  G02B9/60

Abstract: An optical photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.

公开(公告)号：US09791672B2

公开(公告)日：2017-10-17

申请号：US14955058

申请日：2015-12-01

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuan-Ming Chen ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang ,  Chun-Che Hsueh

IPC: G02B13/00 ,  G02B9/62 ,  G02B27/00

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B27/0025

Abstract: An optical image capturing system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element and the third lens element have refractive power. The fourth lens element with negative refractive power has a concave object-side surface and a convex image-side surface. The fifth lens element with positive refractive power has a convex object-side surface, wherein at least one inflection point is on at least one surface thereof. The sixth lens element with negative refractive power has a concave object-side surface. The surfaces of the fifth and the sixth lens elements are aspheric. The optical image capturing system has a total of six lens elements.

公开(公告)号：US09507124B2

公开(公告)日：2016-11-29

申请号：US14221135

申请日：2014-03-20

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan Huang ,  Chun-Che Hsueh

IPC: G02B9/34 ,  G02B13/00 ,  G02B9/58

CPC classification number: G02B13/004 ,  G02B9/34 ,  G02B9/58 ,  G02B13/0015 ,  H04N5/2254

Abstract: An optical photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof, wherein both of an object-side surface and the image-side surface of the third lens element are aspheric. The fourth lens element has negative refractive power, wherein both of an object-side surface and an image-side surface of the fourth lens element are aspheric. The optical photographing lens assembly has a total of four non-cemented lens elements with refractive power.

Abstract translation: 光学摄影镜头组件从物体侧到像侧依次包括第一透镜元件，第二透镜元件，第三透镜​​元件和第四透镜元件。 具有负屈光力的第一透镜元件具有在其近轴区域中凹陷的图像侧表面。 具有正折光力的第二透镜元件具有在其近轴区域中凸出的图像侧表面。 具有正折光力的第三透镜元件的近侧区域具有凸面的图像侧表面，其中第三透镜元件的物体侧表面和图像侧表面都是非球面的。 第四透镜元件具有负折光力，其中第四透镜元件的物体侧表面和图像侧表面都是非球面的。 光学拍摄镜头组件具有总共四个具有屈光力的非胶合透镜元件。

公开(公告)号：US09341815B1

公开(公告)日：2016-05-17

申请号：US14625043

申请日：2015-02-18

Applicant: LARGAN Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Chun-Yen Chen ,  Wei-Yu Chen

IPC: G02B13/00 ,  G02B9/12 ,  G02B5/20 ,  H04N5/225 ,  H04N5/232

CPC classification number: G02B13/0035 ,  G02B9/12 ,  G02B13/008 ,  H04N5/2253

Abstract: An optical imaging system includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex and an image-side surface being convex in a paraxial region. The second lens element with positive refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the third lens element has at least one convex shape in an off-axis region thereof. The optical imaging system further comprises a stop between the image-side surface of the first lens element and the object-side surface of the second lens element. The lens elements are made of plastic material.

Abstract translation: 光学成像系统从物体侧到像侧依次包括第一透镜元件，第二透镜元件和第三透镜元件。 具有正折光力的第一透镜元件具有凸面的物体侧表面和在近轴区域中的凸面的图像侧表面。 具有正折光力的第二透镜元件具有凹面的物体侧表面和在近轴区域中的凸面的图像侧表面。 具有负屈光力的第三透镜元件具有在其近轴区域中凹入的图像侧表面，其中第三透镜元件的像侧表面在其偏轴区域中具有至少一个凸形形状。 光学成像系统还包括在第一透镜元件的图像侧表面和第二透镜元件的物体侧表面之间的止挡件。 透镜元件由塑料材料制成。

公开(公告)号：US20150286032A1

公开(公告)日：2015-10-08

申请号：US14290963

申请日：2014-05-29

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Wei-Yu Chen

IPC: G02B13/00 ,  H04N5/225

CPC classification number: G02B13/004 ,  G02B9/34 ,  G02B13/008 ,  G02B13/18 ,  G02B27/0025 ,  H04N5/2253 ,  H04N5/2254

Abstract: An optical lens system comprises, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, and a fourth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region. The second lens element with refractive power has an image-side surface being convex in a paraxial region. The third lens element with positive refractive power has an aspheric object-side surface being concave in a paraxial region and an aspheric image-side surface being convex in a paraxial region. The fourth lens element with refractive power has an aspheric object-side surface being concave in a paraxial region and an aspheric image-side surface being convex in a paraxial region. There are a total of four lens elements with refractive power in the optical lens system.

Abstract translation: 光学透镜系统从物体侧到像侧依次包括第一透镜元件，第二透镜元件，第三透镜​​元件和第四透镜元件。 具有正折射力的第一透镜元件具有在近轴区域中凸出的物体侧表面。 具有屈光力的第二透镜元件具有在近轴区域中凸出的图像侧表面。 具有正折光力的第三透镜元件具有在近轴区域中凹入的非球面物体侧表面和在近轴区域中凸出的非球面图像侧表面。 具有屈光力的第四透镜元件具有在近轴区域中凹入的非球面物体侧表面和在近轴区域中凸出的非球面图像侧表面。 在光学透镜系统中总共有四个具有屈光力的透镜元件。