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1. 发明申请

US20220276465A1 IMAGING LENS 有权
公开(公告)号：US20220276465A1
公开(公告)日：2022-09-01
申请号：US17394030
申请日：2021-08-04
申请人： KANTATSU CO., LTD.
发明人： Masaki YAMAZAKI
IPC分类号： G02B9/64 , G02B13/00
摘要： An imaging lens includes: arranged in order from an object side to an image side, a first lens L1 having positive refractive power; a second lens L2 having negative refractive power; a third lens L3 having positive refractive power; a fourth lens L4 having negative refractive power; a fifth lens L5; a sixth lens L6; a seventh lens L7; and an eighth lens L8 having negative refractive power, wherein the eighth lens has an aspheric image-side surface having at least one inflection point, and a conditional expression below is satisfied: −12.0

2. 发明申请

US20220019147A1 CIRCUIT PATTERN FORMING SHEET, CIRCUIT PATTERN MANUFACTURING APPARATUS, CIRCUIT PATTERN MANUFACTURING METHOD, AND CIRCUIT PATTERN MANUFACTURING PROGRAM 有权
公开(公告)号：US20220019147A1
公开(公告)日：2022-01-20
申请号：US17216205
申请日：2021-03-29
申请人： KANTATSU CO., LTD.
发明人： Eiji OSHIMA , Tomio KUSAKABE
IPC分类号： G03F7/20 , H05K3/02
摘要： A circuit pattern is quickly created or changed by exposing the circuit pattern on a board without using a photo mask on which the circuit pattern is formed. There is provided a circuit pattern manufacturing apparatus including a forming unit that forms a circuit pattern by irradiating, with a light beam, a circuit pattern forming sheet including an insulating sheet base material layer and a mixture layer made of a mixture containing a conductive material and a photo-curing resin. The forming unit includes, as an optical engine, a housing, a laser diode, a prism mirror, an inclined mirror, a bottom mirror, and a driving mirror.

3. 发明申请

US20220009167A1 OPTICAL SYSTEM FOR OPTICAL SHAPING APPARATUS 有权
公开(公告)号：US20220009167A1
公开(公告)日：2022-01-13
申请号：US17186753
申请日：2021-02-26
申请人： KANTATSU CO., LTD.
发明人： Eiji OSHIMA , Hisanori SUZUKI
IPC分类号： B29C64/268 , G02B19/00 , G02B27/09 , B33Y30/00
摘要： The present invention provides an optical system for stereolithography apparatus that enables highly accurate manufacturing by a stereolithography apparatus. An optical system 10 for stereolithography apparatus, includes: a light source 11; an optical scanning section 16 configured to reflect light emitted from the light source 11 to scan to a manufacturing surface IM; and a condenser lens 17 arranged between the optical scanning section 16 and the manufacturing surface IM and configured to condense the light reflected by the optical scanning section 16. When the condenser lens 17 has a focal length f and the condenser lens 17 has a normal angle A at a maximum effective diameter on a surface on a side of the manufacturing surface IM, the optical system 10 for stereolithography apparatus satisfies f≤25 mm, 0.3

4. 发明申请

US20210396972A1 IMAGING LENS 有权
公开(公告)号：US20210396972A1
公开(公告)日：2021-12-23
申请号：US17391981
申请日：2021-08-02
申请人： Kantatsu Co., Ltd.
发明人： Hitoshi HIRANO
IPC分类号： G02B13/00 , G02B9/64
摘要： An imaging lens includes a first lens having positive refractive power; a second lens having positive 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.

5. 发明申请

US20210389572A1 IMAGING LENS 有权
公开(公告)号：US20210389572A1
公开(公告)日：2021-12-16
申请号：US17099323
申请日：2020-11-16
申请人： KANTATSU CO., LTD.
发明人： Shingo YUZA , Kenichi KAMADA
IPC分类号： G02B13/00 , G02B9/60 , G02B27/00
摘要： There is provided an imaging lens with excellent optical characteristics which satisfies demand of 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 an object-side surface being convex in a paraxial region, a second lens with negative refractive power having an object-side surface being convex in a paraxial region, a third lens with positive or negative refractive power in a paraxial region, a fourth lens with negative refractive power in a paraxial region, and a fifth lens with positive refractive power having an image-side surface being convex in a paraxial region, and predetermined conditional expressions are satisfied.

6. 发明申请

US20210382275A1 IMAGING LENS 有权
公开(公告)号：US20210382275A1
公开(公告)日：2021-12-09
申请号：US17088077
申请日：2020-11-03
申请人： KANTATSU CO., LTD.
发明人： Kenichi KAMADA , Masaya HASHIMOTO
IPC分类号： G02B13/00 , G02B9/62 , G02B27/00
摘要： There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a 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 a convex object-side surface in a paraxial region, a second lens with negative refractive power having a concave image-side surface in a paraxial region, a third lens having a convex object-side surface in a paraxial region, a fourth lens having a convex image-side surface in a paraxial region, a fifth lens having a convex object-side surface in a paraxial region, and a sixth lens having a concave image-side surface in a paraxial region, wherein three out of four lenses from the third lens to the sixth lens have positive refractive power or negative refractive power in the paraxial region, and one out of four lenses is formed in a meniscus shape, substantially has no refractive power in the paraxial region, and has aspheric surfaces on both sides, and a predetermined conditional expression is satisfied.

7. 发明申请

US20210373297A1 IMAGING LENS 有权
公开(公告)号：US20210373297A1
公开(公告)日：2021-12-02
申请号：US17392595
申请日：2021-08-03
申请人： KANTATSU CO., LTD.
发明人： Koji NITTA
IPC分类号： G02B13/00 , G02B9/64
摘要： There is provided an imaging lens with high-resolution which satisfies demand of the wide field of view, the low-profileness and the low F-number, and excellently corrects aberrations. An imaging lens comprises in order from an object side to an image side, a first lens having a convex surface facing the object side near an optical axis, a second lens, a third lens having negative refractive power near the optical axis, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens having a concave surface facing the image side and the negative refractive power near the optical axis, wherein an image-side surface of said eighth lens is formed as an aspheric surface having at least one pole point in a position off the optical axis, said sixth lens has positive refractive power near the optical axis, an object-side surface of said seventh lens is a convex surface facing the object side near the optical axis, and a below conditional expression (1) is satisfied: 0.15

8. 发明申请

US20210364766A1 IMAGING LENS 有权
公开(公告)号：US20210364766A1
公开(公告)日：2021-11-25
申请号：US17392322
申请日：2021-08-03
申请人： KANTATSU CO., LTD.
发明人： Hisao FUKAYA
IPC分类号： G02B13/00 , G02B9/62 , G02B27/00 , H04N5/225
摘要： There is provided an imaging lens with small telephoto ratio and excellent optical characteristics which satisfies demand of the downsizing, the low-profileness and the low F-number. An imaging lens comprises, in order from an object side to an image side, a first lens with positive refractive power, a second lens, a third lens, a fourth lens being a double-sided aspheric lens, a fifth lens being a double-sided aspheric lens, and a sixth lens having a convex surface facing the image side, and a below conditional expression is satisfied: 0.60

9. 发明申请

US20210364762A1 IMAGING LENS 有权
公开(公告)号：US20210364762A1
公开(公告)日：2021-11-25
申请号：US17391840
申请日：2021-08-02
申请人： KANTATSU CO., LTD.
发明人： Hisao FUKAYA
IPC分类号： G02B13/00 , 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 comprises, in order from an object side to an image side, a first lens, an aperture stop, a second lens with positive refractive power in a paraxial region, a third lens with negative refractive power in the paraxial region, a fourth lens, a fifth lens with the positive refractive power in the paraxial region, a sixth lens being a double-sided aspheric lens, and a seventh lens with negative refractive power having an image-side surface being concave in the paraxial region and an aspheric surface having at least one pole point in a position off the optical axis.

10. 发明申请

US20210364759A1 IMAGING LENS 有权
公开(公告)号：US20210364759A1
公开(公告)日：2021-11-25
申请号：US17391788
申请日：2021-08-02
申请人： KANTATSU CO., LTD.
发明人： Yukio SEKINE , Masaya HASHIMOTO
IPC分类号： G02B13/00 , G02B9/60
摘要： There is provided an imaging lens with high-resolution which satisfies demand of the wide field of view, the low-profileness and the low F-number, and excellently corrects aberrations. An 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 the optical axis, a second lens having negative refractive power near the optical axis, a third lens having the positive refractive power near the optical axis, a fourth lens, and a fifth lens having the negative refractive power and a concave surface facing the image side near the optical axis, wherein the image-side surface of said fifth lens is formed as an aspheric surface having at least one off-axial pole point, and predetermined conditional expressions are satisfied.

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