CN111037125A - Processing equipment and preparation method of anti-ultraviolet lens - Google Patents

Processing equipment and preparation method of anti-ultraviolet lens Download PDF

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Publication number
CN111037125A
CN111037125A CN201911366891.1A CN201911366891A CN111037125A CN 111037125 A CN111037125 A CN 111037125A CN 201911366891 A CN201911366891 A CN 201911366891A CN 111037125 A CN111037125 A CN 111037125A
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China
Prior art keywords
laser
substrate
lens
ultraviolet
moving platform
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Pending
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CN201911366891.1A
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Chinese (zh)
Inventor
焦飞宏
佟艳群
蒋俊平
王超
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Jiangsu Huiding Optical Glasses Co ltd
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Jiangsu Huiding Optical Glasses Co ltd
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Priority to CN201911366891.1A priority Critical patent/CN111037125A/en
Publication of CN111037125A publication Critical patent/CN111037125A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/50Working by transmitting the laser beam through or within the workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/50Working by transmitting the laser beam through or within the workpiece
    • B23K26/55Working by transmitting the laser beam through or within the workpiece for creating voids inside the workpiece, e.g. for forming flow passages or flow patterns

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Surface Treatment Of Glass (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention provides a processing device of an anti-ultraviolet lens and a preparation method thereof, comprising a laser, a scanning galvanometer, a focusing lens, a substrate, a mobile platform, a computer and a control system; the laser, the scanning galvanometer, the focusing lens and the substrate are sequentially arranged, and the focusing lens is positioned on a light path of the laser. The computer is used for controlling and regulating the beam output of the laser; the scanning galvanometer adjusts the direction of the laser beam to be parallel to the normal direction of the upper surface of the substrate, the substrate is placed on the moving platform, the laser focus after the focusing lens is focused is positioned in the substrate, and the moving platform continuously moves the substrate, so that the laser continuously acts on different areas of the substrate. Through the mode, the preparation of the ultraviolet-proof lens is realized, and the production process has the characteristics of high efficiency, high quality, non-contact and no pollution.

Description

Processing equipment and preparation method of anti-ultraviolet lens
Technical Field
The invention belongs to the technical field of glasses, and particularly relates to processing equipment of an anti-ultraviolet lens and a preparation method of the processing equipment.
Background
Most of the ultraviolet rays emitted from the sun are absorbed by the ozone layer, but as the ozone layer becomes thinner and holes appear, more and more ultraviolet rays are irradiated to the ground surface. Small amounts of uv radiation are beneficial to human health, but excessive uv radiation can cause photodamage to eye tissue. Ultraviolet light of short wavelength has extremely high energy and can penetrate the crystalline lens to the retina, causing retinal cell death and irreversible vision loss. The ultraviolet-proof glasses are daily necessary articles for daily life of people, and the ultraviolet-proof glasses mainly realize the function of ultraviolet resistance through the ultraviolet-proof lenses. The existing anti-ultraviolet lens is manufactured by adopting a film coating mode or a mode of adding UV powder into the lens, but the working procedures of the two modes are very complicated, and the requirements on the working environment are high; in addition, the raw materials of the coating film and the UV powder are basically chemical synthetic substances, and both the batching and the cleaning process can cause pollution to the environment. In addition, the disposal of waste products and waste materials during the production process is a troublesome problem.
Disclosure of Invention
The invention aims to provide processing equipment and a preparation method of an ultraviolet-proof lens aiming at the problems3+To obtain an electron, Mn2+A cavity is obtained, the optical characteristics of the glass are changed, and the ultraviolet ray resistance is obtained. The preparation process of the ultraviolet-proof lens has the characteristics of high efficiency, high quality, non-contact and no pollution.
The technical scheme of the invention is as follows: a processing device of an anti-ultraviolet lens comprises a laser, a scanning galvanometer, a focusing lens, a substrate, a mobile platform, a computer and a control system;
laser emitted by the laser passes through the scanning galvanometer and then passes through the focusing lens to be focused on the substrate;
the substrate material is ferromanganese ion co-doped silicate glass; the substrate is placed on a moving platform;
the computer is used for controlling and regulating the beam output of the laser;
the control system is used for controlling the movement of the mobile platform;
the scanning galvanometer adjusts the initial position of the laser on the substrate;
the focusing central point of the focusing lens is positioned at the center of the thickness of the substrate;
the focal depth b of the focusing lens is not less than F and not more than D, wherein D is the thickness of the substrate, and b is the thickness of the ultraviolet-proof layer.
L is more than or equal to 1.5d and less than or equal to 2d of the step length of the moving platform, wherein d is the radius of a laser focusing spot;
in the above scheme, the laser is a pulse laser.
The processing method of the ultraviolet-proof lens comprises the following steps:
s1: and cleaning the substrate, placing the substrate on the moving platform, and adjusting the moving platform to move by the control system to enable the laser focal depth F focused by the focusing lens to be positioned in the substrate.
S2: defining a laser processing area S, adjusting laser energy P and repetition frequency f by using the computer.
S3: and carrying out laser processing on the substrate.
In the scheme, the pulse width tau of the pulse laser generated by the laser is 50-500fs, the average power P is 50-2000mW, the repetition frequency f is 1-100kHz, and the diameter d of a light spot is 50 microns.
The pulse width tau of the pulse laser generated by the laser is 150fs, the average power is 500mW, and the repetition frequency is 1 kHz.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the processing equipment and the preparation method of the ultraviolet-proof lens provided by the invention, the device acts on the doped substrate. Different from the coating film in the prior art or the addition of UV powder in the lens, the production efficiency is high, and the production cost is reduced.
2. According to the processing equipment and the preparation method of the ultraviolet-proof lens provided by the invention, the doped substrate is directly treated by using the pulse laser, other components are not introduced in the treatment process, and the environmental pollution is greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for processing an anti-UV lens according to the present invention;
FIG. 2 is a graph of UV-VIS absorbance of the lens of the invention;
wherein, 1, computer; 2. a pulsed laser; 3. scanning a galvanometer; 4. a focusing lens; 5. a substrate; 6. a mobile platform; 7. a control system;
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of the drawings, but the scope of the present invention is not limited thereto.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a processing apparatus for an ultraviolet-proof lens according to the present invention; the processing equipment of an anti-ultraviolet lens comprises a laser 2, a scanning galvanometer 3, a focusing lens 4, a substrate 5, a moving platform 6, a computer 1 and a control system 7;
laser emitted by the laser 2 passes through the scanning galvanometer 3 and passes through the focusing lens 4 to be focused on the substrate 5; the laser 2 is a pulse laser, and the scanning galvanometer 3 is used for adjusting the direction of a laser beam to be parallel to the normal direction of the upper surface of the substrate 5.
The substrate 5 is ferromanganese ion co-doped silicate glass, and Fe is caused by photoelectric effect caused by laser in the process of laser irradiation in femtosecond3+To obtain an electron, Mn2+A cavity is obtained, the optical characteristics of the glass are changed, and the ultraviolet resistance is obtained; the substrate 5 is placed on a moving platform 6, and the control system 7 adjusts the moving platform 6 to move, so that the focal depth of the laser focused by the focusing lens 4 is positioned in the substrate 5. The focusing central point of the focusing lens 4 is positioned at the center of the thickness of the substrate 5; the focal depth b of the focusing lens 4 is not less than F and not more than D, wherein D is the thickness of the substrate, and b is the thickness of the ultraviolet-proof layer. L is more than or equal to 1.5d and less than or equal to 2d of the step length of the moving platform 6, wherein d is the radius of a laser focusing spot;
the computer 1 is used to control and regulate the beam output of the laser 2.
Example 2
A processing method of an ultraviolet-proof lens comprises the following steps:
doping: carrying out ferromanganese ion co-doping on the substrate 5;
preparation: the computer 1 is used for controlling and regulating the beam output of the laser 2; the direction of the laser beam is adjusted by the scanning galvanometer 3 to be parallel to the normal direction of the upper surface of the substrate 5; the laser generated by the laser 2 is converged on the substrate 5, the substrate 5 is placed on the moving platform 6, and the control system 7 adjusts the moving platform 6 to move, so that the focal depth of the laser focused by the focusing lens 4 is positioned in the substrate 5, and the doped substrate 5 is acted.
Preferably, the laser action region S is defined to be 10mm × 10 mm.
The pulse width tau of the pulse laser generated by the pulse laser 2 is 50-500fs, the average power P is 50-2000mW, the repetition frequency F is 1-100kHz, the diameter d of a light spot is 50 mu m, and the focal depth F is 1 mm. .
Preferably, the pulse width τ of the pulsed laser is 150fs, the average power P is 500mW, and the repetition frequency f is 1 kHz.
The treatment process comprises the following steps:
s1: and cleaning the substrate 5, and then placing the substrate on the moving platform 6, wherein the control system 7 adjusts the moving platform 6 to move l, so that the laser focal depth F focused by the focusing lens 4 is positioned in the substrate 5.
S2: the computer 1 is used to define a laser processing area S, adjust the laser energy P and the repetition frequency f.
S3: the substrate 5 is subjected to laser processing.
As shown in FIG. 2, FIG. 2 is a graph of the UV-Vis absorbance of the lens of the present invention, and it can be seen that the absorbance value between 300 and 350nm is > 1.
Through the mode, the preparation of the ultraviolet-proof lens is realized, and the production process has the characteristics of high efficiency, high quality, non-contact and no pollution.
It should be understood that although the present invention has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein can be combined as a whole to form other embodiments as would be understood by those skilled in the art.
The above detailed description is given for the purpose of illustrating a practical embodiment of the present invention and is not to be construed as limiting the scope of the present invention, and any equivalent embodiments or modifications thereof without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims (5)

1. A processing device of an ultraviolet-proof lens comprises a laser (2), a scanning galvanometer (3), a focusing lens (4), a substrate (5), a moving platform (6), a computer (1) and a control system (7);
laser emitted by the laser (2) passes through the scanning galvanometer (3) and passes through the focusing lens (4) to be focused on the substrate (5);
the substrate (5) is manganese iron ion co-doped silicate glass; the substrate (5) is placed on a moving platform (6);
the computer (1) is used for controlling and regulating the beam output of the laser (2); the control system (7) is used for controlling the movement of the mobile platform (6);
the scanning galvanometer (3) adjusts the initial position of the laser on the substrate (5);
the focusing central point of the focusing lens (4) is positioned at the center of the thickness of the substrate (5);
the focal depth b of the focusing lens (4) is not less than F and not more than D, wherein D is the thickness of the substrate (5), and b is the thickness of the ultraviolet-proof layer;
l is more than or equal to 1.5d and less than or equal to 2d of the step length of the moving platform (6), wherein d is the radius of a laser focusing spot.
2. The processing equipment of the uv-blocking lens according to claim 1, characterized in that the laser (2) is a pulsed laser.
3. A method for processing an ultraviolet-proof lens as defined in any one of claims 1 to 2, comprising the steps of:
s1: and cleaning the substrate (5) and then placing the substrate on the moving platform (6), and adjusting the moving platform (6) by the control system (7) to enable the laser focus F focused by the focusing lens (4) to be positioned in the substrate (5).
S2: defining a laser processing area S, adjusting the laser energy P and the repetition frequency f by using the computer (1).
S3: the substrate (5) is subjected to laser treatment.
4. The method for processing an ultraviolet-proof lens as claimed in claim 3, wherein the laser (2) generates a pulse width τ of 50-500fs, an average power P of 50-2000mW, a repetition frequency f of 1-100kHz, and a spot diameter d of 50 μm.
5. The method for processing UV-blocking lens according to claim 3, wherein the laser (2) generates a pulsed laser with a pulse width τ of 150fs, an average power of 500mW and a repetition rate of 1 kHz.
CN201911366891.1A 2019-12-26 2019-12-26 Processing equipment and preparation method of anti-ultraviolet lens Pending CN111037125A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112390519A (en) * 2020-10-31 2021-02-23 江苏汇鼎光学眼镜有限公司 Lens cutting method

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CN103613280A (en) * 2013-11-22 2014-03-05 福耀玻璃工业集团股份有限公司 Coating liquid for forming ultraviolet absorbing coatings and ultraviolet absorbing glass
WO2016129254A1 (en) * 2015-02-10 2016-08-18 日本板硝子株式会社 Glass for laser processing, and method for producing glass with hole using said glass for laser processing
CN107286375A (en) * 2017-07-26 2017-10-24 深圳市集美新材料股份有限公司 Glasses slab rubber and its manufacture method
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CN101391496A (en) * 2007-09-21 2009-03-25 精工爱普生株式会社 Base member with bonding film, bonding method and bonded body
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CN103613280A (en) * 2013-11-22 2014-03-05 福耀玻璃工业集团股份有限公司 Coating liquid for forming ultraviolet absorbing coatings and ultraviolet absorbing glass
WO2016129254A1 (en) * 2015-02-10 2016-08-18 日本板硝子株式会社 Glass for laser processing, and method for producing glass with hole using said glass for laser processing
CN108137375A (en) * 2015-10-09 2018-06-08 康宁股份有限公司 The base material and its formation process of glass sensor with through-hole
CN107286375A (en) * 2017-07-26 2017-10-24 深圳市集美新材料股份有限公司 Glasses slab rubber and its manufacture method
WO2019113029A1 (en) * 2017-12-04 2019-06-13 Corning Incorporated Glass-ceramics and glass-ceramic articles with uv- and nir-blocking characteristics

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112390519A (en) * 2020-10-31 2021-02-23 江苏汇鼎光学眼镜有限公司 Lens cutting method

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