JPS50136057A - - Google Patents

Info

Publication number
JPS50136057A
JPS50136057A JP3173775A JP3173775A JPS50136057A JP S50136057 A JPS50136057 A JP S50136057A JP 3173775 A JP3173775 A JP 3173775A JP 3173775 A JP3173775 A JP 3173775A JP S50136057 A JPS50136057 A JP S50136057A
Authority
JP
Japan
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.)
Granted
Application number
JP3173775A
Other languages
Japanese (ja)
Other versions
JPS6023282B2 (en
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
Priority claimed from GB11598/74A external-priority patent/GB1504691A/en
Application filed filed Critical
Publication of JPS50136057A publication Critical patent/JPS50136057A/ja
Publication of JPS6023282B2 publication Critical patent/JPS6023282B2/en
Expired 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
    • 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
    • G01D5/363—Direction discrimination

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
JP50031737A 1974-03-15 1975-03-14 Relative displacement measuring device Expired JPS6023282B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB11598/74A GB1504691A (en) 1974-03-15 1974-03-15 Measurement apparatus
GB11598/74 1974-03-15
GB44522/74 1974-10-14
GB4452274 1974-10-14

Publications (2)

Publication Number Publication Date
JPS50136057A true JPS50136057A (en) 1975-10-28
JPS6023282B2 JPS6023282B2 (en) 1985-06-06

Family

ID=26248389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50031737A Expired JPS6023282B2 (en) 1974-03-15 1975-03-14 Relative displacement measuring device

Country Status (4)

Country Link
JP (1) JPS6023282B2 (en)
DE (2) DE2511350A1 (en)
FR (1) FR2329972A1 (en)
NL (1) NL185178C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170214U (en) * 1983-04-30 1984-11-14 株式会社ベルデックス micro scale

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325803C2 (en) * 1983-07-16 1986-11-20 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Incremental photoelectric measuring device
DE3334398C1 (en) * 1983-09-23 1984-11-22 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Measuring device
GB8615197D0 (en) * 1986-06-21 1986-07-23 Renishaw Plc Opto-electronic scale reading apparatus
GB8729066D0 (en) * 1987-12-12 1988-01-27 Renishaw Plc Opto-electronic scale-reading apparatus
US4943716A (en) * 1988-01-22 1990-07-24 Mitutoyo Corporation Diffraction-type optical encoder with improved detection signal insensitivity to optical grating gap variations
US4979827A (en) * 1988-02-26 1990-12-25 Kabushiki Kaisha Okuma Tekkosho Optical linear encoder
JPH0218680U (en) * 1988-07-19 1990-02-07
JP3196459B2 (en) * 1993-10-29 2001-08-06 キヤノン株式会社 Rotary encoder
JP3513251B2 (en) * 1994-03-14 2004-03-31 キヤノン株式会社 Optical displacement sensor
JP3631551B2 (en) * 1996-01-23 2005-03-23 株式会社ミツトヨ Optical encoder
DE19859670A1 (en) 1998-12-23 2000-06-29 Heidenhain Gmbh Dr Johannes Readhead and method of making same
DE19859669A1 (en) * 1998-12-23 2000-06-29 Heidenhain Gmbh Dr Johannes Integrated optoelectronic sensor and method for its production
DE19917950A1 (en) 1999-04-21 2000-10-26 Heidenhain Gmbh Dr Johannes Integrated optoelectronic thin film sensor, useful for scale scanning in a length, angle or two-dimensional measuring system, has a semiconductor layer of thickness corresponding to that of the detecting region of photodetectors
US7186969B2 (en) 2003-02-12 2007-03-06 Mitutoyo Corporation Optical configuration for imaging-type optical encoders
JPWO2006006342A1 (en) * 2004-07-12 2008-04-24 三菱電機株式会社 Optical encoder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829464A (en) * 1971-08-17 1973-04-19

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911234A1 (en) * 1968-03-06 1969-10-02 Holotron Corp Ultrasonic imaging method for examining the female breast or the like.
US3578979A (en) * 1968-04-23 1971-05-18 Tajima Seisakusho Kk Electrical signal generating apparatus having a scale grid
GB1231029A (en) * 1968-12-13 1971-05-05
GB1353470A (en) * 1970-10-19 1974-05-15 Post D Position measuring apparatus utilizing moire fringe multiplication
US3812352A (en) * 1972-08-28 1974-05-21 Itek Corp Encoder readout system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829464A (en) * 1971-08-17 1973-04-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170214U (en) * 1983-04-30 1984-11-14 株式会社ベルデックス micro scale

Also Published As

Publication number Publication date
DE2511350A1 (en) 1975-10-09
FR2329972A1 (en) 1977-05-27
DE2511350C2 (en) 1987-06-04
JPS6023282B2 (en) 1985-06-06
AU7911675A (en) 1976-09-16
FR2329972B1 (en) 1982-03-26
DE7508197U (en) 1976-02-05
NL185178B (en) 1989-09-01
NL185178C (en) 1990-02-01
NL7503103A (en) 1975-09-17

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