公开(公告)号：US11996668B2

公开(公告)日：2024-05-28

申请号：US17027870

申请日：2020-09-22

Applicant: DENSO CORPORATION

Inventor： Tomohiro Ishikawa ,  Kenji Kanehara

IPC: H01S3/10 ,  H01S3/04 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  F02P23/04 ,  G02B5/00 ,  H01S3/00 ,  H01S3/091

CPC classification number: H01S3/0608 ,  H01S3/0401 ,  H01S3/061 ,  H01S3/094053 ,  H01S3/094061 ,  H01S3/09415 ,  F02P23/04 ,  G02B5/001 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/091 ,  H01S2301/203

Abstract: A laser ignition device includes a laser oscillation optical system that produces pulsed laser light, a condensing optical element that condenses the pulsed laser light into a combustion chamber, a housing that internally contains the condensing optical element, and an optical window that is provided distally with respect to the condensing optical element in the housing and transmits the pulsed laser light. The pulsed laser light is shaped as a ring around an optical axis at least at a light passage position in the optical window.

公开(公告)号：US11780033B2

公开(公告)日：2023-10-10

申请号：US17126879

申请日：2020-12-18

Applicant: TRUMPF Laser—und Systemtechnik GmbH

Inventor： Malte Kumkar ,  Jonas Kleiner ,  Daniel Grossmann ,  Daniel Flamm ,  Myriam Kaiser

IPC: B23K26/53 ,  G02B5/00 ,  G02B27/09 ,  B23K26/064 ,  B23K26/06 ,  B23K26/042 ,  B23K26/046 ,  B23K26/073

CPC classification number: B23K26/53 ,  B23K26/042 ,  B23K26/046 ,  B23K26/06 ,  B23K26/064 ,  B23K26/073 ,  G02B5/001 ,  G02B27/095

Abstract: For material processing of a material, which is in particular for a laser beam to a large extent transparent, asymmetric shaped modifications are created transverse to the propagation direction of the laser beam. Thereby, the laser beam is shaped for forming an elongated focus zone in the material, wherein the focus zone is such that it includes at least one intensity maximum, which is transverse flattened in a flattening direction, or a transverse and/or axial sequence of asymmetric intensity maxima, which are flattened in a sequence direction. After positioning the focus zone in the material, a modification is created and the material and the focus zone are moved relative to each other in the or across to the flattening direction or in the or across to the sequence direction for forming a crack along an induced preferred direction.

公开(公告)号：US20230293278A1

公开(公告)日：2023-09-21

申请号：US18198888

申请日：2023-05-18

Applicant: Enamel Pure

Inventor： Charles Dresser ,  Nathan Monty

IPC: A61C17/00 ,  A61N5/067 ,  A61C1/00 ,  A61N5/06 ,  G02B5/00 ,  G02B19/00

CPC classification number: A61C17/005 ,  A61N5/067 ,  A61C1/0046 ,  A61N5/0603 ,  G02B5/001 ,  G02B19/0014 ,  G02B19/0047 ,  A61N2005/0606

Abstract: Embodiments relate to a systems and methods for preventative irradiative dental treatment. In accordance with one embodiment, a system and method include using a radiation source to generate a radiation; using an optic disposed to accept the radiation to internally reflect he radiation at a first end; using at least one side of the optic to contact a dental hard tissue; using the optic to couple some of the radiation into the dental hard tissue; and, using a controller to control a parameter of the radiation to heat a surface of the dental hard tissue.

公开(公告)号：US09806484B2

公开(公告)日：2017-10-31

申请号：US15034130

申请日：2013-11-22

Applicant: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD. ,  HAN'S CNC TECHNOLOGY CO., LTD.

Inventor： Lei Xiao ,  Chengwan Gong ,  Jiantao Zhao ,  Jinbin Yang ,  Yanhua Ning ,  Yunfeng Gao

IPC: H01S3/06 ,  H01S3/16 ,  G02B5/00 ,  G02B5/30 ,  H01S3/081 ,  H01S3/0933 ,  H01S3/08 ,  H01S3/02 ,  H01S3/042

CPC classification number: H01S3/0604 ,  G02B5/001 ,  G02B5/3066 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0804 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/081 ,  H01S3/0813 ,  H01S3/0933 ,  H01S3/094084 ,  H01S3/1618 ,  H01S3/1643 ,  H01S2301/14 ,  H01S2301/20

Abstract: A radial polarization disk laser, including a pumping source, a collimator lens, a focusing lens, a laser gain medium, a Brewster axial cone, and a output lens, which are sequentially arranged along a laser light path. An angle formed between the conical surface and the bottom surface of said Brewster axial cone is a Brewster's angle. Said laser gain medium is bonded with said bottom surface; said laser gain medium and said output lens form a laser harmonic oscillator cavity therebetween. The pumped laser light emitted by said pumping source passes through said collimator lens and said focusing lens, then is focused on the laser gain medium, and. the generated photons oscillate in said laser harmonic oscillator cavity, and then a radial polarized laser beam is finally output by said output lens.

公开(公告)号：US20170115475A1

公开(公告)日：2017-04-27

申请号：US15317281

申请日：2015-06-10

Applicant: Hans-Ulrich DODT

Inventor： Hans-Ulrich Dodt ,  Saiedeh Saghafi

IPC: G02B21/08 ,  G01N21/64 ,  G02B27/09 ,  G02B21/00 ,  G02B5/00 ,  G02B27/42

CPC classification number: G02B21/08 ,  G01N21/6458 ,  G02B5/001 ,  G02B21/0048 ,  G02B21/0076 ,  G02B21/06 ,  G02B27/09 ,  G02B27/0927 ,  G02B27/425

Abstract: The present application relates to devices and methods for generating light sheets and thin light beams with high Rayleigh lengths by using at least two interconnected meso-optical elements.

公开(公告)号：US09625623B2

公开(公告)日：2017-04-18

申请号：US15012174

申请日：2016-02-01

Applicant: asphericon GmbH

Inventor： Sven Kiontke ,  Ulrike Fuchs

IPC: G02B3/02 ,  B23K26/08 ,  G02B5/00 ,  B23K26/00 ,  G02B27/09 ,  G02B27/58 ,  G02B3/04 ,  G02B27/00 ,  G02B27/40

CPC classification number: G02B5/001 ,  B23K26/00 ,  B23K26/064 ,  B23K26/0648 ,  G02B3/04 ,  G02B27/005 ,  G02B27/0927 ,  G02B27/0972 ,  G02B27/40 ,  G02B27/58

Abstract: A beam focuser for focusing an entrance bundle of approximately collimated beams around an optical axis in a focus area around a focal point. Along the optical path from the light inlet to the light outlet, a first axicon with an axicon angle, and subsequently a second axicon with the same axicon angle are arranged on the inlet side, and an imaging optical system is arranged on the outlet side. The first and second axicon are disposed mirror-symmetrically along the optical axis. The imaging optical system has a focal point which faces the outlet side of the beam focuser.

公开(公告)号：US09507064B2

公开(公告)日：2016-11-29

申请号：US14810229

申请日：2015-07-27

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Mark L. Brongersma ,  Dianmin Lin ,  Pengyu Fan ,  Erez Hasman

IPC: G02B5/30 ,  G02B5/18 ,  G02B5/00 ,  G02B1/00

CPC classification number: G02B5/1833 ,  B82Y20/00 ,  G02B1/002 ,  G02B5/001

Abstract: A dielectric gradient metasurface optical device provides optical wavefront shaping using an ultrathin (less than 100 nm thick) layer of nanoscale geometric Pancharatnam-Berry phase optical elements deposited on a substrate layer. The optical elements are nanobeams composed of high refractive index dielectric material. The nanobeams have uniform size and shape and are arranged with less than 200 nm separations and spatially varying orientations in the plane of the device such that the optical device has a spatially varying optical phase response capable of optical wavefront shaping. The high refractive index dielectric material may be materials compatible with semiconductor electronic fabrication, including silicon, polysilicon, germanium, gallium arsenide, titanium dioxide, or iron oxide.

Abstract translation: 电介质梯度表面光学器件使用沉积在衬底层上的纳米级几何Pancharatnam-Berry相位光学元件的超薄（小于100nm厚）的层提供光学波前成形。 光学元件是由高折射率介电材料构成的纳米片。 纳米尺寸具有均匀的尺寸和形状，并且在器件的平面中布置有小于200nm的分离和空间变化的取向，使得光学器件具有能够进行光学波前成形的空间变化的光学相位响应。 高折射率介电材料可以是与半导体电子制造兼容的材料，包括硅，多晶硅，锗，砷化镓，二氧化钛或氧化铁。

公开(公告)号：US09323035B2

公开(公告)日：2016-04-26

申请号：US14215503

申请日：2014-03-17

Applicant: Hach Company

Inventor： Perry A. Palumbo

IPC: G02B27/00 ,  G02B19/00 ,  G02B3/04 ,  G02B3/00

CPC classification number: G02B19/0076 ,  G01N15/06 ,  G01N21/01 ,  G01N21/53 ,  G01N33/18 ,  G01N2015/0693 ,  G01N2201/064 ,  G02B3/04 ,  G02B5/001 ,  G02B13/18 ,  G02B19/0028 ,  G02B19/008 ,  G02B26/0808 ,  G02B2003/0093 ,  Y10T29/49826

Abstract: One embodiment provides an annular optical device, comprising: an annular meso-optic having a substantially triangular cross section and including an annulus centered about an axis of revolution; and a secondary optical structure substantially coaxial within the annulus of the annular meso-optic, wherein the secondary optical structure and the annular meso-optic are separated by a media comprising a media refractive index that is lower than a secondary optical structure refractive index, with the secondary optical structure being configured to hold a specimen to be radiated by impinging electromagnetic radiation directed into the secondary optical structure substantially along the axis of revolution, wherein re-directed radiation from the specimen is allowed into the annular meso-optic by the secondary optical structure if an angle of incidence of the re-directed radiation exceeds the angle of Total Internal Reflectance. Other embodiments are descried and claimed.

Abstract translation: 一个实施例提供了一种环形光学装置，其包括：具有基本三角形横截面并且包括以旋转轴为中心的环的环形中视光学器件; 以及在所述环形介质光学器件的环形空间内基本同轴的次级光学结构，其中所述次级光学结构和所述环形中视光学器件被包括介质折射率低于第二光学结构折射率的介质分开， 所述辅助光学结构被配置为通过基本上沿着所述旋转轴线照射被引导到所述次级光学结构中的电磁辐射来保持要辐射的样本，其中来自所述样本的重新定向的辐射通过所述次级光学被允许进入所述环形中视镜 结构，如果重新引导的辐射的入射角超过内部反射率的总和。 描述并要求保护其他实施例。

公开(公告)号：US20160089749A1

公开(公告)日：2016-03-31

申请号：US14868926

申请日：2015-09-29

Applicant: FANUC CORPORATION

Inventor： Atsushi MORI

IPC: B23K26/06 ,  G02B27/00 ,  G02B27/40

CPC classification number: B23K26/0648 ,  B23K26/0665 ,  G02B5/001 ,  G02B19/0009 ,  G02B27/0025 ,  G02B27/40

Abstract: A laser processing apparatus including a processing head and a light-focusing optical section for focusing a laser beam having a diffusion angle and enabling the laser beam having a convergent angle to be emitted from the processing head. The laser processing apparatus includes a transmissive optical member located upstream of the light-focusing optical section so as to transmit the laser beam while keeping the diffusion angle constant, or located downstream of the light-focusing optical section so as to transmit the laser beam while keeping the convergent angle constant. The transmissive optical member includes a focused-beam diameter increasing part for increasing a focused beam diameter of the laser beam transmitted through the focused-beam diameter increasing part, as compared to a focused beam diameter of the laser beam in a case where the laser beam is not transmitted through the focused-beam diameter increasing part but is focused by the light-focusing optical section.

Abstract translation: 一种激光加工装置，包括处理头和聚焦光学部分，用于聚焦具有扩散角的激光束，并使得能够从处理头发射具有会聚角的激光束。 激光加工装置包括位于聚光光学部分上游的透射光学部件，以便在保持扩散角恒定的同时透射激光束，或者位于光聚焦光学部分的下游以便透射激光束同时 保持收敛角度不变。 与激光束的聚焦光束直径相比，透射光学部件包括聚焦光束直径增大部分，用于增加透射通过聚焦光束直径增加部分的激光束的聚焦光束直径， 不透过聚光束直径增加部分而被聚光光学部分聚焦。

公开(公告)号：US20160004074A1

公开(公告)日：2016-01-07

申请号：US14419629

申请日：2013-04-28

Applicant: Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences

Inventor： Fang Zhang ,  Jing Zhu ,  Huijie Huang ,  Qiang Song ,  Baoxi Yang ,  Ming Chen ,  Aijun Zeng ,  Lihua Huang ,  Zhonghua Hu ,  Yanfen Xiao

IPC: G02B27/00 ,  G02B5/00 ,  G03F7/20 ,  G02B26/08 ,  G02B27/42 ,  G02B27/28 ,  G02B5/18

CPC classification number: G02B27/0081 ,  G02B5/001 ,  G02B5/1838 ,  G02B26/0816 ,  G02B27/0905 ,  G02B27/0911 ,  G02B27/0972 ,  G02B27/283 ,  G02B27/4222 ,  G03F7/20 ,  G03F7/70091 ,  G03F7/70108

Abstract: A lithography pupil shaping optical system and method for generating off-axis illumination mode. The invention is composed of illumination mode generation unit, rotatable wave plate, polarization beam splitter unit, ring I generation unit and ring II generation unit. Through selecting corresponding diffractive optical element and appropriate adjustment, this invention can generate various illumination modes including single ring illumination mode and double ring illumination mode. The intensity at pupil plane and the inner and outer diameters of the off-axis illumination mode can be adjusted continuously.

Abstract translation: 光刻光瞳整形光学系统和用于产生离轴照明模式的方法。 本发明由照明模式生成单元，可旋转波片，偏振分束器单元，环I产生单元和环II生成单元组成。 通过选择对应的衍射光学元件和适当的调整，本发明可以产生包括单环照明模式和双环照明模式的各种照明模式。 瞳孔面的强度以及离轴照射模式的内径和外径可以连续调节。