JPH0126005B2 - - Google Patents

Info

Publication number
JPH0126005B2
JPH0126005B2 JP59223916A JP22391684A JPH0126005B2 JP H0126005 B2 JPH0126005 B2 JP H0126005B2 JP 59223916 A JP59223916 A JP 59223916A JP 22391684 A JP22391684 A JP 22391684A JP H0126005 B2 JPH0126005 B2 JP H0126005B2
Authority
JP
Japan
Prior art keywords
light
diffraction grating
diffracted
position detector
incidence
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
JP59223916A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60190812A (ja
Inventor
Shigeo Moryama
Tatsuo Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22391684A priority Critical patent/JPS60190812A/ja
Publication of JPS60190812A publication Critical patent/JPS60190812A/ja
Publication of JPH0126005B2 publication Critical patent/JPH0126005B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
JP22391684A 1984-10-26 1984-10-26 位置検出器 Granted JPS60190812A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22391684A JPS60190812A (ja) 1984-10-26 1984-10-26 位置検出器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22391684A JPS60190812A (ja) 1984-10-26 1984-10-26 位置検出器

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP10295690A Division JPH032520A (ja) 1990-04-20 1990-04-20 位置検出器

Publications (2)

Publication Number Publication Date
JPS60190812A JPS60190812A (ja) 1985-09-28
JPH0126005B2 true JPH0126005B2 (en, 2012) 1989-05-22

Family

ID=16805720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22391684A Granted JPS60190812A (ja) 1984-10-26 1984-10-26 位置検出器

Country Status (1)

Country Link
JP (1) JPS60190812A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201511B4 (de) * 1991-01-25 2006-04-27 Mitutoyo Corp. Positionsdetektor und Verfahren zur Positionsmessung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07119624B2 (ja) * 1986-01-14 1995-12-20 キヤノン株式会社 リニアエンコーダー
JPH073344B2 (ja) * 1987-06-15 1995-01-18 キヤノン株式会社 エンコ−ダ−
US5102226A (en) * 1989-01-12 1992-04-07 Matsushita Electric Works, Ltd. Optical measurement system for determination of an object profile
DE102012201393A1 (de) * 2012-02-01 2013-08-01 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung und Anordnung mit mehreren Positionsmesseinrichtungen
US9983028B2 (en) * 2012-04-26 2018-05-29 Nikon Corporation Measurement method and encoder device, and exposure method and device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6811252A (en, 2012) * 1968-08-08 1970-02-10
DE2003492A1 (de) * 1970-01-27 1971-08-12 Leitz Ernst Gmbh Messverfahren fuer Schrittgeber zum Messen von Laengen oder Winkeln sowie Anordnungen zur Durchfuehrung dieses Messverfahrens
GB1367886A (en) * 1971-10-29 1974-09-25 Ti Group Serivces Ltd Measuring apparatus
JPS5174659A (en, 2012) * 1974-12-24 1976-06-28 Nippon Electric Co
JPS5245225A (en) * 1975-10-07 1977-04-09 Fujitsu Ltd Memory device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201511B4 (de) * 1991-01-25 2006-04-27 Mitutoyo Corp. Positionsdetektor und Verfahren zur Positionsmessung
DE4201511C5 (de) * 1991-01-25 2008-07-17 Mitutoyo Corp. Positionsdetektor und Verfahren zur Positionsmessung

Also Published As

Publication number Publication date
JPS60190812A (ja) 1985-09-28

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