WO2007078687A3 - Optical system having aberrations for transforming a gaussian laser-beam intensity profile to a quasi-flat-topped intensity profile in a focal region of the optical system - Google Patents

Optical system having aberrations for transforming a gaussian laser-beam intensity profile to a quasi-flat-topped intensity profile in a focal region of the optical system Download PDF

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Publication number
WO2007078687A3
WO2007078687A3 PCT/US2006/047273 US2006047273W WO2007078687A3 WO 2007078687 A3 WO2007078687 A3 WO 2007078687A3 US 2006047273 W US2006047273 W US 2006047273W WO 2007078687 A3 WO2007078687 A3 WO 2007078687A3
Authority
WO
WIPO (PCT)
Prior art keywords
intensity profile
optical system
quasi
flat
topped
Prior art date
Application number
PCT/US2006/047273
Other languages
French (fr)
Other versions
WO2007078687A2 (en
Inventor
George Frangineas
Original Assignee
Reliant Technologies Inc
George Frangineas
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 Reliant Technologies Inc, George Frangineas filed Critical Reliant Technologies Inc
Publication of WO2007078687A2 publication Critical patent/WO2007078687A2/en
Publication of WO2007078687A3 publication Critical patent/WO2007078687A3/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses

Abstract

An optical system is configured for projecting an image having a quasi-flat-topped intensity profile from a laser-beam having a Gaussian intensity profile. The optical system includes a diffraction limited lens for focusing the laser beam and one or more optical elements that introduce aberration into the beam before the beam is focused. The aberration introduced causes the Gaussian intensity profile to be changed to the quasi-flat-topped intensity profile at some position in a focal region of the diffraction-limited lens.
PCT/US2006/047273 2005-12-16 2006-12-11 Optical system having aberrations for transforming a gaussian laser-beam intensity profile to a quasi-flat-topped intensity profile in a focal region of the optical system WO2007078687A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US75117705P 2005-12-16 2005-12-16
US60/751,177 2005-12-16
US11/567,614 US7656592B2 (en) 2005-12-16 2006-12-06 Optical system having aberrations for transforming a Gaussian laser-beam intensity profile to a quasi-flat-topped intensity profile in a focal region of the optical system
US11/567,614 2006-12-06

Publications (2)

Publication Number Publication Date
WO2007078687A2 WO2007078687A2 (en) 2007-07-12
WO2007078687A3 true WO2007078687A3 (en) 2008-06-26

Family

ID=38197675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/047273 WO2007078687A2 (en) 2005-12-16 2006-12-11 Optical system having aberrations for transforming a gaussian laser-beam intensity profile to a quasi-flat-topped intensity profile in a focal region of the optical system

Country Status (2)

Country Link
US (1) US7656592B2 (en)
WO (1) WO2007078687A2 (en)

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US7630147B1 (en) * 2007-02-16 2009-12-08 University Of Central Florida Research Foundation, Inc. Laser beam shaping for pitchfork profile
US8502877B2 (en) 2008-08-28 2013-08-06 Kyocera Corporation Image pickup apparatus electronic device and image aberration control method
JP5361999B2 (en) * 2009-05-25 2013-12-04 三菱電機株式会社 Laser processing apparatus and laser processing method
FR2954720B1 (en) * 2009-12-24 2012-02-10 Commissariat Energie Atomique METHOD AND DEVICE FOR LASER WELDING AND ELECTRON BEAM IN TOTAL PENETRATION
US9346126B2 (en) * 2011-05-30 2016-05-24 Mitsubishi Heavy Industries, Ltd. Laser processing head, laser processing apparatus, optical system of laser processing apparatus, laser processing method, and laser focusing method
US9931712B2 (en) * 2012-01-11 2018-04-03 Pim Snow Leopard Inc. Laser drilling and trepanning device
GB2512323B (en) * 2013-03-26 2017-11-01 Wellburn Daniel Laser beam intensity profile modulator for top hat beams
JP6249225B2 (en) * 2014-03-13 2017-12-20 パナソニックＩｐマネジメント株式会社 Laser processing apparatus and laser processing method
US10632568B2 (en) * 2015-06-10 2020-04-28 Ipg Photonics Corporation Laser beam energy modification to reduce back-wall strikes during laser drilling
US10877359B2 (en) * 2016-12-12 2020-12-29 Sony Semiconductor Solutions Corporation Projection optical system, image projection apparatus, and image projection system for a laser scanning projector
NL2030028B1 (en) * 2021-12-03 2023-06-20 Inphocal B V Laser marking system
CN114924411A (en) * 2022-05-30 2022-08-19 中国人民解放军国防科技大学 Light beam transformation system design method for medium and long distance laser Doppler velocimeter
CN115826254B (en) * 2023-02-14 2023-05-02 清华大学 Flat-top beam modulation method, system and storage medium

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Publication number Priority date Publication date Assignee Title
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Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
US7656592B2 (en) 2010-02-02
US20070140092A1 (en) 2007-06-21
WO2007078687A2 (en) 2007-07-12

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