WO2018218605A1 - Lentille de nettoyage laser - Google Patents

Lentille de nettoyage laser Download PDF

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Publication number
WO2018218605A1
WO2018218605A1 PCT/CN2017/086840 CN2017086840W WO2018218605A1 WO 2018218605 A1 WO2018218605 A1 WO 2018218605A1 CN 2017086840 W CN2017086840 W CN 2017086840W WO 2018218605 A1 WO2018218605 A1 WO 2018218605A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
laser cleaning
curvature
radius
face
Prior art date
Application number
PCT/CN2017/086840
Other languages
English (en)
Chinese (zh)
Inventor
李家英
孙博
陈根余
陈焱
高云峰
Original Assignee
大族激光科技产业集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大族激光科技产业集团股份有限公司 filed Critical 大族激光科技产业集团股份有限公司
Priority to PCT/CN2017/086840 priority Critical patent/WO2018218605A1/fr
Priority to CN201780084415.3A priority patent/CN110198794B/zh
Publication of WO2018218605A1 publication Critical patent/WO2018218605A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B1/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Definitions

  • the invention relates to a laser cleaning lens.
  • Laser cleaning has the characteristics of no grinding, non-contact, no heat, etc. It is increasingly used in industrial cleaning.
  • the spot formed by the laser cleaning lens on the surface of the workpiece is elongated, and the length of the spot is related to the focal length of the laser cleaning lens.
  • the focal length of the laser cleaning lens is a certain value.
  • it is necessary to use a laser cleaning lens with different focal lengths. Preparing a variety of laser cleaning lenses is not only cumbersome, but also increases the production cost of the laser cleaning lens.
  • a laser cleaning lens comprising a first lens, a second lens, a third lens and a fourth lens arranged in sequence from the object side to the image side, the first lens being a meniscus lens and the second lens being a curved lens
  • the fourth lens can be moved toward or away from the third lens, that is, the distance between the third lens and the fourth lens is adjustable, so that the focal length of the laser cleaning lens can be changed.
  • the length of the spot formed by the laser cleaning lens on the surface of the workpiece will also vary with the focal length. And change. Therefore, the above laser cleaning lens can meet the requirements of different cleaning ranges, and is very convenient, and can also reduce the production cost of the laser cleaning lens.
  • FIG. 1 is a schematic structural view of a laser cleaning lens according to an embodiment
  • FIG. 2 is a geometric aberration diagram of the laser cleaning lens shown in FIG. 1;
  • FIG. 3 is a graph showing an optical transfer function of the laser cleaning lens shown in FIG. 1.
  • a laser cleaning lens will be described more fully hereinafter with reference to the accompanying drawings.
  • a preferred embodiment of a laser cleaning lens is given in the drawings.
  • the laser cleaning lens can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of the laser cleaning lens more thorough and comprehensive.
  • FIG. 1 is a schematic structural view of a laser cleaning lens according to an embodiment, for convenience of explanation, only The part related to the present embodiment has been made.
  • a laser cleaning lens includes a first lens 100, a second lens 200, a third lens 300, and a fourth lens which are sequentially arranged from the object side toward the image side (the direction of the arrow in FIG. 1). 400 and fifth lens 500.
  • the first lens 100 is a meniscus lens
  • the second lens 200 is a meniscus lens
  • the third lens 300 is a meniscus lens
  • the fourth lens 400 is a plano-concave lens
  • the fifth lens 500 is a planar lens.
  • the first lens 100, the second lens 200, the third lens 300, and the fourth lens 400 are mainly used for focusing, and the fifth lens 500 is protected from debris splashing or contamination during the cleaning process.
  • the fifth lens 500 may be omitted.
  • the fourth lens 400 is movable toward or away from the third lens 300. That is, the distance between the third lens 300 and the fourth lens 400 is adjustable, so that the focal length of the laser cleaning lens can be changed. Accordingly, the length of the spot formed by the laser cleaning lens on the surface of the workpiece also varies with the focal length. Variety. Therefore, the above laser cleaning lens can meet the requirements of different cleaning ranges, and is very convenient, and can also reduce the production cost of the laser cleaning lens.
  • the infrared ray having a wavelength of 1064 nm is propagated from left to right, and the workpiece is located on the right side of the fifth lens 500.
  • the spherical center of the spherical surface is left at the intersection point, the radius of curvature of the spherical surface is negative, and the spherical center of the sphere is right at the intersection point, and the radius of curvature of the spherical surface is positive. That is, the positive and negative of the radius of curvature are irrelevant and represent only the direction of curvature of the spherical surface.
  • the first lens 100 includes a first face 110 and a second face 120 that are arranged from the object side toward the image side direction.
  • the first face 110 protrudes to the right and has a radius of curvature of -15 mm to -55 mm.
  • the second face 120 is convex toward the right and has a radius of curvature of -16 mm to -45 mm.
  • the center thickness of the first lens 100 i.e., the thickness of the first lens 100 on the optical axis 600
  • the refractive index of the first lens 100 and Abbe The ratio of the number is 1.46/67.
  • the second lens 200 includes a third surface 210 and a fourth surface 220 which are arranged from the object side toward the image side direction.
  • the third face 210 protrudes to the right and has a radius of curvature of -95 mm to -200 mm.
  • the fourth face 220 protrudes to the right, the radius of curvature is less than or equal to the radius of curvature of the third face 210, and the radius of curvature of the fourth face 220 is -50 mm to -95 mm.
  • the center thickness of the second lens 200 is 5.2 mm to 10 mm.
  • the ratio of the refractive index of the second lens 200 to the Abbe number is 1.80/25.
  • the third lens 300 includes a fifth surface 310 and a sixth surface 320 which are arranged from the object side toward the image side direction.
  • the fifth side 310 protrudes to the right and has a radius of curvature of -202 mm to -283 mm.
  • the sixth surface 320 protrudes to the right with a radius of curvature smaller than the radius of curvature of the fifth surface 310, and the sixth surface 320 has a radius of curvature of -101 mm to -133 mm.
  • the center thickness of the third lens 300 is 3.3 mm to 9.6 mm.
  • the ratio of the refractive index of the third lens 300 to the Abbe number is 1.80/25.
  • the fourth lens 400 includes a seventh surface 410 and an eighth surface 420 which are arranged from the object side toward the image side direction.
  • the seventh side 410 protrudes to the right and has a radius of curvature of -64 mm to -104 mm.
  • the eighth face 420 is a plane perpendicular to the optical axis 600, and the radius of curvature of the eighth face 420 is ⁇ .
  • the center thickness of the fourth lens 400 is 0.5 mm to 5.5 mm.
  • the ratio of the refractive index of the fourth lens 400 to the Abbe number is 1.50/62.
  • the fifth lens 500 includes a ninth surface 510 and a tenth surface 520 which are arranged from the object side toward the image side direction.
  • the ninth face 510 is a plane having a radius of curvature of ⁇ .
  • the tenth face 520 is a plane having a radius of curvature of ⁇ .
  • the center thickness of the fifth lens 500 is 0.8 mm to 5.6 mm.
  • the ratio of the refractive index of the fifth lens 500 to the Abbe number is 1.50/62.
  • the positions of the first lens 100, the second lens 200, and the third lens 300 are fixed, and the distance between the second surface 120 and the third surface 210 (refers to the second surface 120 and the optical axis 600)
  • the distance between the intersection of the third surface 210 and the optical axis 600, the same applies hereinafter, is 0.3 mm to 4 mm
  • the distance between the fourth surface 220 and the fifth surface 310 is 0.1 mm to 2.2 mm.
  • Fourth lens 400 shift The distance between the sixth surface 320 and the seventh surface 410 can vary from 7 mm to 46 mm.
  • the laser cleaning lens of the present embodiment is an f- ⁇ lens, and the size of the entrance pupil is 10 mm.
  • the focal length of the laser cleaning lens may vary from 160 mm to 254 mm, and the working distance may be 98 mm to Within the range of 244 mm, the length of the spot varies from 144 mm to 220 mm. Therefore, the laser cleaning lens of the present embodiment can meet the requirements of different cleaning ranges.
  • the MTF of the laser cleaning lens is still greater than 0.3, which has achieved the desired effect.
  • the laser cleaning lens is ideally calibrated to ensure laser cleaning.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Lenses (AREA)

Abstract

Une lentille de nettoyage laser selon l'invention comprend une première lentille (100), une deuxième lentille (200), une troisième lentille (300) et une quatrième lentille (400) agencées séquentiellement du côté objet au côté image. La première lentille (100) est une lentille ménisque, la deuxième lentille (200) est une lentille ménisque, la troisième lentille (300) est une lentille ménisque et la quatrième lentille (400) est une lentille plane-concave. La quatrième lentille (400) peut se rapprocher ou s'éloigner de la troisième lentille (300).
PCT/CN2017/086840 2017-06-01 2017-06-01 Lentille de nettoyage laser WO2018218605A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/086840 WO2018218605A1 (fr) 2017-06-01 2017-06-01 Lentille de nettoyage laser
CN201780084415.3A CN110198794B (zh) 2017-06-01 2017-06-01 激光清洗镜头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/086840 WO2018218605A1 (fr) 2017-06-01 2017-06-01 Lentille de nettoyage laser

Publications (1)

Publication Number Publication Date
WO2018218605A1 true WO2018218605A1 (fr) 2018-12-06

Family

ID=64454373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/086840 WO2018218605A1 (fr) 2017-06-01 2017-06-01 Lentille de nettoyage laser

Country Status (2)

Country Link
CN (1) CN110198794B (fr)
WO (1) WO2018218605A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111940421B (zh) * 2020-07-27 2021-08-03 江苏大学 一种高效激光清洗装置及方法
CN111940422B (zh) * 2020-07-27 2022-06-21 江苏大学 一种手持式激光清洗装置及方法
CN114101222A (zh) * 2020-08-26 2022-03-01 上海铁路通信有限公司 一种用于激光清洗的可变焦距装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2216443Y (zh) * 1994-07-18 1996-01-03 王佛性 激光加工机的变焦距光学聚焦系统
EP0765468B1 (fr) * 1994-06-14 2002-10-23 Visionix Ltd. Appareil de mappage d'elements optiques
CN201758240U (zh) * 2010-05-21 2011-03-09 太原理工大学 半导体激光准直扩束器
CN204074632U (zh) * 2014-08-04 2015-01-07 武汉和骏激光技术有限公司 一种便携式激光清洗机
US20170059840A1 (en) * 2015-08-26 2017-03-02 Olympus Corporation Scanning microscope

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100476494C (zh) * 2006-12-30 2009-04-08 深圳市大族激光科技股份有限公司 激光变倍扩束镜头
CN201203692Y (zh) * 2008-04-29 2009-03-04 深圳市大族激光科技股份有限公司 激光直径转换装置
GB2460648A (en) * 2008-06-03 2009-12-09 M Solv Ltd Method and apparatus for laser focal spot size control
KR100984727B1 (ko) * 2010-04-30 2010-10-01 유병소 대상물 가공 방법 및 대상물 가공 장치
KR101135499B1 (ko) * 2010-05-28 2012-04-13 삼성에스디아이 주식회사 전지용 전극 탭의 레이저 세정 장치 및 이를 이용한 레이저 세정 방법
CN102547048B (zh) * 2010-10-22 2015-03-25 财团法人工业技术研究院 激光扫描装置
CN202780232U (zh) * 2012-05-23 2013-03-13 武汉凌云光电科技有限责任公司 同轴测温成像的激光聚焦系统
DE102012111601A1 (de) * 2012-11-29 2014-03-13 Limo Patentverwaltung Gmbh & Co. Kg Scanvorrichtung zum Scannen eines Laserstrahls in einer Arbeitsebene
CN105478997B (zh) * 2014-09-15 2017-04-12 荣刚材料科技股份有限公司 激光加工装置的杠杆调焦模块
CN204430568U (zh) * 2014-12-09 2015-07-01 大族激光科技产业集团股份有限公司 激光切割头
CN106199983B (zh) * 2016-08-25 2018-11-13 大族激光科技产业集团股份有限公司 扩束组件及具有该扩束组件的激光加工设备
CN106735939A (zh) * 2017-02-20 2017-05-31 常州特尔玛枪嘴有限公司 一种可调节光斑大小的激光切割头

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0765468B1 (fr) * 1994-06-14 2002-10-23 Visionix Ltd. Appareil de mappage d'elements optiques
CN2216443Y (zh) * 1994-07-18 1996-01-03 王佛性 激光加工机的变焦距光学聚焦系统
CN201758240U (zh) * 2010-05-21 2011-03-09 太原理工大学 半导体激光准直扩束器
CN204074632U (zh) * 2014-08-04 2015-01-07 武汉和骏激光技术有限公司 一种便携式激光清洗机
US20170059840A1 (en) * 2015-08-26 2017-03-02 Olympus Corporation Scanning microscope

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CN110198794B (zh) 2022-02-18
CN110198794A (zh) 2019-09-03

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