JP5180021B2 - レーザ加工装置およびレーザ加工方法 - Google Patents
レーザ加工装置およびレーザ加工方法 Download PDFInfo
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- JP5180021B2 JP5180021B2 JP2008256629A JP2008256629A JP5180021B2 JP 5180021 B2 JP5180021 B2 JP 5180021B2 JP 2008256629 A JP2008256629 A JP 2008256629A JP 2008256629 A JP2008256629 A JP 2008256629A JP 5180021 B2 JP5180021 B2 JP 5180021B2
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- 238000003860 storage Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 13
- 230000001678 irradiating effect Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 description 11
- 238000010330 laser marking Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- OQEBBZSWEGYTPG-UHFFFAOYSA-N 3-aminobutanoic acid Chemical compound CC(N)CC(O)=O OQEBBZSWEGYTPG-UHFFFAOYSA-N 0.000 description 2
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Classifications
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- 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
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
- G03H1/0808—Methods of numerical synthesis, e.g. coherent ray tracing [CRT], diffraction specific
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/22—Telecentric objectives or lens systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2294—Addressing the hologram to an active spatial light modulator
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H2001/0094—Adaptation of holography to specific applications for patterning or machining using the holobject as input light distribution
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2225/00—Active addressable light modulator
- G03H2225/30—Modulation
- G03H2225/32—Phase only
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Laser Beam Processing (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Holo Graphy (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Description
Claims (6)
- 加工対象物に対してレーザ光を照射することにより、2以上の基本加工パターンを含む全体加工パターンで一括して前記加工対象物を加工するレーザ加工装置であって、
レーザ光を出力するレーザ光源と、
前記レーザ光源から出力されたレーザ光を入力し、2次元配列された複数の画素それぞれにおいて前記レーザ光の位相を変調する全体ホログラムを呈示して、その位相変調後のレーザ光を出力する位相変調型の空間光変調器と、
結像位置および結像倍率が可変であり、前記空間光変調器から出力されるレーザ光を入力して、そのレーザ光を前記加工対象物において結像させる結像光学系と、
複数の基本加工パターンそれぞれに対応する複数の基本ホログラムを記憶するとともに、互いに焦点距離が異なる複数のフレネルレンズパターンそれぞれに相当する複数の集光用ホログラムを記憶する記憶部と、
前記記憶部により記憶された複数の基本ホログラムのうちから選択した2以上の基本ホログラムを並列配置し、その並列配置した各基本ホログラムに前記集光用ホログラムを重畳して全体ホログラムを構成し、その構成した全体ホログラムを前記空間光変調器に呈示させ、前記基本ホログラムに重畳する前記集光用ホログラムの焦点距離と前記結像光学系の結像位置または結像倍率とを互いに関連付けて制御を行う制御部と、
を備えることを特徴とするレーザ加工装置。 - 前記結像光学系がテレセントリック光学系を含むことを特徴とする請求項1に記載のレーザ加工装置。
- 前記制御部が前記空間光変調器に複数の全体ホログラムを並列配置して呈示させ、
前記レーザ光源から出力されたレーザ光を前記空間光変調器に呈示された複数の全体ホログラムに対して順次に入射させる入射位置調整手段と、前記加工対象物における前記結像光学系によるレーザ光の結像の位置を調整する結像位置調整手段とを備える、
ことを特徴とする請求項1に記載のレーザ加工装置。 - 加工対象物に対してレーザ光を照射することにより、2以上の基本加工パターンを含む全体加工パターンで一括して前記加工対象物を加工するレーザ加工方法であって、
レーザ光を出力するレーザ光源と、
前記レーザ光源から出力されたレーザ光を入力し、2次元配列された複数の画素それぞれにおいて前記レーザ光の位相を変調する全体ホログラムを呈示して、その位相変調後のレーザ光を出力する位相変調型の空間光変調器と、
結像位置および結像倍率が可変であり、前記空間光変調器から出力されるレーザ光を入力して、そのレーザ光を前記加工対象物において結像させる結像光学系と、
複数の基本加工パターンそれぞれに対応する複数の基本ホログラムを記憶するとともに、互いに焦点距離が異なる複数のフレネルレンズパターンそれぞれに相当する複数の集光用ホログラムを記憶する記憶部と、
を用い、
前記記憶部により記憶された複数の基本ホログラムのうちから選択した2以上の基本ホログラムを並列配置し、その並列配置した各基本ホログラムに前記集光用ホログラムを重畳して全体ホログラムを構成し、その構成した全体ホログラムを前記空間光変調器に呈示させ、前記基本ホログラムに重畳する前記集光用ホログラムの焦点距離と前記結像光学系の結像位置または結像倍率とを互いに関連付けて制御を行い、前記レーザ光源から出力されるレーザ光を前記空間光変調器に入射させ、前記空間光変調器から出力されるレーザ光を前記結像光学系により前記加工対象物において結像させる、
ことを特徴とするレーザ加工方法。 - 前記結像光学系がテレセントリック光学系を含むことを特徴とする請求項4に記載のレーザ加工方法。
- 前記空間光変調器に複数の全体ホログラムを並列配置して呈示させ、
前記レーザ光源から出力されたレーザ光を前記空間光変調器に呈示された複数の全体ホログラムに対して順次に入射させ、
前記加工対象物における前記結像光学系によるレーザ光の結像の位置を調整する、
ことを特徴とする請求項4に記載のレーザ加工方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2008256629A JP5180021B2 (ja) | 2008-10-01 | 2008-10-01 | レーザ加工装置およびレーザ加工方法 |
US12/566,143 US8482829B2 (en) | 2008-10-01 | 2009-09-24 | Laser processing apparatus and laser processing method |
CN201410428261.3A CN104162740B (zh) | 2008-10-01 | 2009-10-09 | 激光加工装置和激光加工方法 |
CN200910151293.2A CN101712100B (zh) | 2008-10-01 | 2009-10-09 | 激光加工装置和激光加工方法 |
US13/918,225 US8941903B2 (en) | 2008-10-01 | 2013-06-14 | Laser emitting apparatus using a basic hologram and a focusing hologram |
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JP2008256629A JP5180021B2 (ja) | 2008-10-01 | 2008-10-01 | レーザ加工装置およびレーザ加工方法 |
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JP2012239014A Division JP5592457B2 (ja) | 2012-10-30 | 2012-10-30 | レーザ加工装置,レーザ加工方法,レーザ照射装置およびレーザ照射方法 |
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JP2010082672A JP2010082672A (ja) | 2010-04-15 |
JP5180021B2 true JP5180021B2 (ja) | 2013-04-10 |
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US (2) | US8482829B2 (ja) |
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US6815638B2 (en) * | 2002-07-25 | 2004-11-09 | Matsushita Electric Industrial Co., Ltd. | Method of determining a minimum pulse width for a short pulse laser system |
JP4761432B2 (ja) * | 2004-10-13 | 2011-08-31 | 株式会社リコー | レーザ加工装置 |
JP4647965B2 (ja) * | 2004-10-22 | 2011-03-09 | 株式会社リコー | レーザ加工方法及びレーザ加工装置及びにこれよって作製された構造体 |
JP2008180983A (ja) | 2007-01-25 | 2008-08-07 | Sei Tsunezo | レーザー微細加工方法 |
US8243353B1 (en) * | 2008-04-07 | 2012-08-14 | Applied Science Innovations, Inc. | Holography-based device, system and method for coded aperture imaging |
JP5180021B2 (ja) * | 2008-10-01 | 2013-04-10 | 浜松ホトニクス株式会社 | レーザ加工装置およびレーザ加工方法 |
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US8941903B2 (en) | 2015-01-27 |
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