专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20210356716A1 IMAGING LENS 有权
公开(公告)号：US20210356716A1
公开(公告)日：2021-11-18
申请号：US17391780
申请日：2021-08-02
申请人： KANTATSU CO., LTD.
发明人： Kenichi KAMADA , Masaya HASHIMOTO
IPC分类号： G02B13/00 , G02B27/00 , G02B9/64
摘要： There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low profile and low F-number. An imaging lens comprising in order from an object side to an image side, a first lens with positive refractive power having a convex object-side surface in a paraxial region, a second lens with negative refractive power in a paraxial region, a third lens with negative refractive power in a paraxial region, a fourth lens with positive or negative refractive power in a paraxial region, a fifth lens, a sixth lens with positive refractive power in a paraxial region, and a seventh lens with negative refractive power having a concave image-side surface in a paraxial region, and predetermined conditional expressions are satisfied.

12. 发明申请

US20210356702A1 IMAGING LENS 有权
公开(公告)号：US20210356702A1
公开(公告)日：2021-11-18
申请号：US17391966
申请日：2021-08-02
申请人： Kantatsu Co., Ltd.
发明人： Hitoshi HIRANO
IPC分类号： G02B9/64 , G02B15/14 , G02B13/00
摘要： An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.

13. 发明申请

US20210339460A1 OPTICAL SHAPING APPARATUS 有权
公开(公告)号：US20210339460A1
公开(公告)日：2021-11-04
申请号：US17373512
申请日：2021-07-12
申请人： KANTATSU CO., LTD.
发明人： Eiji OSHIMA , Tomio KUSAKABE , Akira OSAKA , Hidekazu EBE , Kenichi TAKANASHI
IPC分类号： B29C64/106 , B29C67/00 , B29C64/25 , B29C64/264 , B33Y30/00 , B29K105/00 , B33Y40/00
摘要： There is provided an optical shaping apparatus for readily implementing three-dimensional shaping with sufficiently high accuracy, including a material tank that has a bottom surface made of a light-transmitting material and accommodates a photo-curing liquid material, a light source unit that incorporates a driving mirror and scans the bottom surface with a laser beam, and a lifting mechanism that lifts a shaped object shaped by the laser beam from the material tank. The light source unit includes, as an optical engine, a housing, a laser diode that is arranged on one side in the housing and emits a laser beam, and the driving mirror that reflects reflected light from the laser diode by changing an angle in a vertical direction and a horizontal direction.

14. 发明申请

US20210255436A1 IMAGING LENS 有权
公开(公告)号：US20210255436A1
公开(公告)日：2021-08-19
申请号：US17306622
申请日：2021-05-03
申请人： KANTATSU CO., LTD.
发明人： Masaya HASHIMOTO
IPC分类号： G02B13/00 , G02B9/64 , G02B27/00
摘要： An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses.

15. 发明授权

US11086102B2 Imaging lens 有权
公开(公告)号：US11086102B2
公开(公告)日：2021-08-10
申请号：US16445797
申请日：2019-06-19
申请人： KANTATSU CO., LTD.
发明人： Yoji Kubota , Kenichi Kubota , Hitoshi Hirano , Tomohiro Yonezawa
IPC分类号： G02B9/64 , G02B9/12 , G02B13/18 , G02B13/00 , G02B5/00 , G02B27/00
摘要： An imaging lens includes a first lens; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens; and a seventh lens, arranged in this order from an object side to an image plane side with a space between each of the lenses. The second lens is formed in a shape so that a surface thereof on the object side has a positive curvature radius. The third lens is formed in a shape so that a surface thereof on the image plane side has a positive curvature radius. The sixth lens is formed in a shape so that a surface thereof on the image plane side has a positive curvature radius. The seventh lens has a specific Abbe's number. The sixth lens and the seventh lens have a specific composite focal length.

16. 发明授权

US11048064B2 Imaging lens 有权
公开(公告)号：US11048064B2
公开(公告)日：2021-06-29
申请号：US15968380
申请日：2018-05-01
申请人： KANTATSU CO., LTD.
发明人： Hisao Fukaya
IPC分类号： G02B9/62 , G02B13/00 , G02B9/64 , G02B27/00
摘要： An imaging lens in which a positive first lens group, a positive second lens group, and a negative third lens group are arranged in order from the object side. The first lens group includes a positive first lens having a convex object-side surface and a second lens. The second lens group includes third and fourth lenses each having at least one aspheric surface. The third lens group includes a fifth lens, a sixth lens as a double-sided aspheric lens, and a seventh lens having a concave image-side surface near an optical axis. The lenses are not joined to each other, the seventh lens has an aspheric image-side surface whose shape changes from concave to convex as the distance from the optical axis increases, and an F-number is less than 1.8.

17. 发明授权

US10962743B2 Imaging lens 有权
公开(公告)号：US10962743B2
公开(公告)日：2021-03-30
申请号：US16448987
申请日：2019-06-21
申请人： KANTATSU CO., LTD.
发明人： Masaya Hashimoto
IPC分类号： G02B13/18 , G02B3/02 , G02B13/00 , G02B9/64
摘要： A compact imaging lens which addresses low-profile and low F value, and corrects aberrations. An imaging lens includes a first lens having positive refractive power and a convex surface on an object side near an optical axis, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and a eighth lens having a concave surface on an image side near the optical axis as double-sided aspheric lens, wherein the second to seventh lenses each have at least one aspheric surface, and the eighth lens has pole points off an optical axis on the aspheric image-side surface.

18. 发明授权

US10955660B2 Optical element with light shielding area, and imaging lens 有权
公开(公告)号：US10955660B2
公开(公告)日：2021-03-23
申请号：US16185977
申请日：2018-11-09
申请人： KANTATSU CO., LTD.
发明人： Nobuyuki Ohtsu , Koji Yoshikawa
IPC分类号： G02B27/00
摘要： There is provided an optical element, an imaging lens and an imaging device preventing from occurring ghosts and flares caused by unnecessary light reflected on a surface of the edge part or inside the same of the optical element, and reproducing a clear image quality.
The optical element 100 includes an effective optical portion 101, 103 and an edge part 102, 104 forming at the circumference of the effective optical portion 101, 103. A light shielding area SSI which changes in quality by laser irradiation is provided from a surface to the inside of the edge part or the inside of the same.

19. 发明申请

US20210080701A1 IMAGING LENS 有权
公开(公告)号：US20210080701A1
公开(公告)日：2021-03-18
申请号：US17038104
申请日：2020-09-30
申请人： KANTATSU CO., LTD.
发明人： Yukio SEKINE
IPC分类号： G02B13/00 , G02B9/64
摘要： There is provided a compact and high-resolution imaging lens at a low cost. The imaging lens comprises in order from an object side to an image side, a first lens having positive refractive power and a convex surface facing the object side near an optical axis, a second lens having negative refractive power and a meniscus shape having the convex surface facing the object side near the optical axis, a third lens having the positive or the negative refractive power, a fourth lens having the convex surface facing the image side near the optical axis, a fifth lens having the positive refractive power, a sixth lens having the positive refractive power, and a seventh lens having the negative refractive power and a concave surface facing the image side near the optical axis, the image side surface of said seventh lens is formed as an aspheric surface which changes to the convex surface at a peripheral area, the object-side surface of said fifth lens has the convex surface facing the object side near the optical axis, all lenses are single lenses arranged with an interval between lenses adjacent to each other, and below conditional expressions (1), (2) and (3) are satisfied: 1.50

20. 发明申请

US20210055509A1 IMAGING LENS 有权
公开(公告)号：US20210055509A1
公开(公告)日：2021-02-25
申请号：US16843597
申请日：2020-04-08
申请人： KANTATSU CO., LTD.
发明人： Kenichi KAMADA , Masaya HASHIMOTO
IPC分类号： G02B9/62
摘要： There is provided an imaging lens with excellent optical characteristics which satisfies demand of low-profileness and low F-number. An imaging lens comprises, in order from an object side to an image side, a first lens with positive refractive power having an object-side surface being convex in a paraxial region, a second lens with negative refractive power in a paraxial region, a third lens with negative refractive power in a paraxial region, a fourth lens with positive or negative refractive power having an object-side surface being convex in a paraxial region, a fifth lens with positive or negative refractive power in a paraxial region, and a sixth lens with positive or negative refractive power having an image-side surface being convex in a paraxial region, and predetermined conditional expressions are satisfied.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式