NL185178C - Apparatus for the photoelectric measurement of a relative shift between two elements. - Google Patents

Apparatus for the photoelectric measurement of a relative shift between two elements.

Info

Publication number
NL185178C
NL185178C NL7503103A NL7503103A NL185178C NL 185178 C NL185178 C NL 185178C NL 7503103 A NL7503103 A NL 7503103A NL 7503103 A NL7503103 A NL 7503103A NL 185178 C NL185178 C NL 185178C
Authority
NL
Netherlands
Prior art keywords
elements
relative shift
photoelectric measurement
photoelectric
measurement
Prior art date
Application number
NL7503103A
Other languages
Dutch (nl)
Other versions
NL185178B (en
NL7503103A (en
Original Assignee
Nat Res Dev
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 by Nat Res Dev filed Critical Nat Res Dev
Publication of NL7503103A publication Critical patent/NL7503103A/en
Publication of NL185178B publication Critical patent/NL185178B/en
Application granted granted Critical
Publication of NL185178C publication Critical patent/NL185178C/en

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
NL7503103A 1974-03-15 1975-03-14 Apparatus for the photoelectric measurement of a relative shift between two elements. NL185178C (en)

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
NL7503103A NL7503103A (en) 1975-09-17
NL185178B NL185178B (en) 1989-09-01
NL185178C true NL185178C (en) 1990-02-01

Family

ID=26248389

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7503103A NL185178C (en) 1974-03-15 1975-03-14 Apparatus for the photoelectric measurement of a relative shift between two elements.

Country Status (4)

Country Link
JP (1) JPS6023282B2 (en)
DE (2) DE7508197U (en)
FR (1) FR2329972A1 (en)
NL (1) NL185178C (en)

Families Citing this family (16)

* 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
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
DE19859669A1 (en) 1998-12-23 2000-06-29 Heidenhain Gmbh Dr Johannes Integrated optoelectronic sensor and method for its production
DE19859670A1 (en) 1998-12-23 2000-06-29 Heidenhain Gmbh Dr Johannes Readhead and method of making same
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911231A1 (en) * 1968-03-06 1970-02-12 Holotron Corp Ultrasound mammograph
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
US3768911A (en) * 1971-08-17 1973-10-30 Keuffel & Esser Co Electro-optical incremental motion and position indicator
US3812352A (en) * 1972-08-28 1974-05-21 Itek Corp Encoder readout system

Also Published As

Publication number Publication date
DE7508197U (en) 1976-02-05
NL185178B (en) 1989-09-01
DE2511350C2 (en) 1987-06-04
DE2511350A1 (en) 1975-10-09
JPS6023282B2 (en) 1985-06-06
FR2329972A1 (en) 1977-05-27
AU7911675A (en) 1976-09-16
NL7503103A (en) 1975-09-17
FR2329972B1 (en) 1982-03-26
JPS50136057A (en) 1975-10-28

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee