FR2479445B1 - - Google Patents

Info

Publication number
FR2479445B1
FR2479445B1 FR8006640A FR8006640A FR2479445B1 FR 2479445 B1 FR2479445 B1 FR 2479445B1 FR 8006640 A FR8006640 A FR 8006640A FR 8006640 A FR8006640 A FR 8006640A FR 2479445 B1 FR2479445 B1 FR 2479445B1
Authority
FR
France
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
FR8006640A
Other languages
French (fr)
Other versions
FR2479445A1 (fr
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.)
SORO ELECTRO OPTICS
Original Assignee
SORO ELECTRO OPTICS
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 SORO ELECTRO OPTICS filed Critical SORO ELECTRO OPTICS
Priority to FR8006640A priority Critical patent/FR2479445A1/fr
Publication of FR2479445A1 publication Critical patent/FR2479445A1/fr
Application granted granted Critical
Publication of FR2479445B1 publication Critical patent/FR2479445B1/fr
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
    • G01D5/347—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 using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • 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)
  • Position Input By Displaying (AREA)
FR8006640A 1980-03-25 1980-03-25 Dispositif de mesure de deplacement a reseau et contre-reseau Granted FR2479445A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8006640A FR2479445A1 (fr) 1980-03-25 1980-03-25 Dispositif de mesure de deplacement a reseau et contre-reseau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8006640A FR2479445A1 (fr) 1980-03-25 1980-03-25 Dispositif de mesure de deplacement a reseau et contre-reseau

Publications (2)

Publication Number Publication Date
FR2479445A1 FR2479445A1 (fr) 1981-10-02
FR2479445B1 true FR2479445B1 (index.php) 1984-01-27

Family

ID=9240089

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006640A Granted FR2479445A1 (fr) 1980-03-25 1980-03-25 Dispositif de mesure de deplacement a reseau et contre-reseau

Country Status (1)

Country Link
FR (1) FR2479445A1 (index.php)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7019842B2 (en) * 2000-09-14 2006-03-28 Dr. Johannes Heidenhain Gmbh Position measuring device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533703A (en) * 1966-06-23 1970-10-13 Itek Corp Linear motion encoder
CH502580A (de) * 1969-01-24 1971-01-31 Oerlikon Buehrle Ag Vorrichtung mit einer Photozellenanordnung zur Bestimmung der Lage eines äquidistant geteilten Massstabes
CH600300A5 (index.php) * 1975-07-05 1978-06-15 Heidenhain Gmbh Dr Johannes
DD128692B1 (de) * 1976-12-13 1983-05-25 Wieland Feist Anordnung zur winkelmessung

Also Published As

Publication number Publication date
FR2479445A1 (fr) 1981-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse