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MY167829A - Optical displacement gauge and optical displacement calculation method - Google Patents

Optical displacement gauge and optical displacement calculation method

Info

Publication number
MY167829A
MY167829A MYPI2013003139A MYPI2013003139A MY167829A MY 167829 A MY167829 A MY 167829A MY PI2013003139 A MYPI2013003139 A MY PI2013003139A MY PI2013003139 A MYPI2013003139 A MY PI2013003139A MY 167829 A MY167829 A MY 167829A
Authority
MY
Malaysia
Prior art keywords
light
optical displacement
optical
emits
sample
Prior art date
Application number
MYPI2013003139A
Inventor
Chida Naomichi
Wada Ken-Ichirou
Original Assignee
Yokogawa Electric Corp
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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Publication of MY167829A publication Critical patent/MY167829A/en

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  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

OPTICAL DISPLACEMENT GAUGE AND OPTICAL DISPLACEMENT CALCULATION METHOD AN OPTICAL DISPLACEMENT GAUGE INCLUDE: A LIGHT SOURCE THAT EMITS A FIRST BEAM OF LIGHT THAT INCLUDES A PLURALITY OF WAVELENGTHS; AN OBJECTIVE LENS THAT SHINES THE FIRST BEAM OF LIGHT EMITTED BY THE LIGHT SOURCE ONTO A SAMPLE SO THAT THE FIRST BEAM OF LIGHT IS FOCUSED AT DIFFERENT POSITIONS ON AN OPTICAL AXIS FOR DIFFERENT ONES OF THE PLURALITY OF WAVELENGTHS; A SEPARATION UNIT THAT SEPARATES A SECOND BEAM OF LIGHT THAT HAS BEEN REFLECTED FROM THE SAMPLE AND PASSED THROUGH THE OBJECTIVE LENS, AND EMITS A THIRD BEAM OF LIGHT; AN OPTICAL ELEMENT THAT CAUSES CHROMATIC ABERRATION AND ASTIGMATISM IN THE THIRD BEAM OF LIGHT AND EMITS A FOURTH BEAM OF LIGHT WHICH HAS THE CHROMATIC ABERRATION AND THE ASTIGMATISM; A PLURALITY OF DETECTION UNITS THAT DETECT THE FOURTH BEAM OF LIGHT EMITTED FROM THE OPTICAL ELEMENT; AND A CALCULATION UNIT THAT CALCULATES A HEIGHT OF THE SAMPLE FROM A REFERENCE SURFACE, BASED ON THE FOURTH BEAM OF LIGHT DETECTED BY THE PLURALITY OF DETECTION UNITS. (FIGURE 1)
MYPI2013003139A 2012-08-28 2013-08-26 Optical displacement gauge and optical displacement calculation method MY167829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012187670A JP5674050B2 (en) 2012-08-28 2012-08-28 Optical displacement meter

Publications (1)

Publication Number Publication Date
MY167829A true MY167829A (en) 2018-09-26

Family

ID=50312171

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2013003139A MY167829A (en) 2012-08-28 2013-08-26 Optical displacement gauge and optical displacement calculation method

Country Status (3)

Country Link
JP (1) JP5674050B2 (en)
CN (1) CN103673888B (en)
MY (1) MY167829A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10495446B2 (en) * 2015-06-29 2019-12-03 Kla-Tencor Corporation Methods and apparatus for measuring height on a semiconductor wafer
JP6779234B2 (en) * 2015-12-25 2020-11-04 株式会社キーエンス Confocal displacement meter
JP6493265B2 (en) * 2016-03-24 2019-04-03 オムロン株式会社 Optical measuring device
JP2018124167A (en) 2017-01-31 2018-08-09 オムロン株式会社 Inclination measuring device
CN109163662A (en) * 2018-08-31 2019-01-08 天津大学 Spectral Confocal displacement measurement method and device based on length scanning
CN110308152B (en) * 2019-07-26 2020-04-07 上海御微半导体技术有限公司 Optical detection device and optical detection method
CN113390334B (en) * 2020-03-13 2025-10-14 欧姆龙株式会社 Optical measuring device
CN113741019B (en) * 2021-08-23 2024-07-02 余姚市朗森光学科技有限公司 Chromatic aberration focusing module, system and method
CN115077391A (en) * 2022-03-25 2022-09-20 上海洛丁森工业自动化设备有限公司 Micro-displacement sensor and displacement measuring method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149513A (en) * 1986-12-12 1988-06-22 Sankyo Seiki Mfg Co Ltd Optical displacement measuring method
JPH109827A (en) * 1996-06-24 1998-01-16 Omron Corp Method and equipment for determining height
JP4209709B2 (en) * 2003-03-20 2009-01-14 株式会社キーエンス Displacement meter
JP2005221451A (en) * 2004-02-09 2005-08-18 Mitsutoyo Corp Laser displacement gauge
JP4133884B2 (en) * 2004-03-18 2008-08-13 株式会社ミツトヨ Optical displacement measuring instrument
JP2009236655A (en) * 2008-03-27 2009-10-15 Nikon Corp Displacement detecting apparatus, exposure apparatus, and device manufacturing method
JP5520036B2 (en) * 2009-07-16 2014-06-11 株式会社ミツトヨ Optical displacement meter
JP2011237272A (en) * 2010-05-10 2011-11-24 Seiko Epson Corp Optical distance meter and distance measuring method
US20110286006A1 (en) * 2010-05-19 2011-11-24 Mitutoyo Corporation Chromatic confocal point sensor aperture configuration
JP5634138B2 (en) * 2010-06-17 2014-12-03 Dmg森精機株式会社 Displacement detector
JP5248551B2 (en) * 2010-06-17 2013-07-31 株式会社東芝 Height detection device

Also Published As

Publication number Publication date
JP5674050B2 (en) 2015-02-18
JP2014044161A (en) 2014-03-13
CN103673888B (en) 2016-09-07
CN103673888A (en) 2014-03-26

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