DE9218399U1 - Length or angle measuring system - Google Patents

Length or angle measuring system

Info

Publication number
DE9218399U1
DE9218399U1 DE9218399U DE9218399U DE9218399U1 DE 9218399 U1 DE9218399 U1 DE 9218399U1 DE 9218399 U DE9218399 U DE 9218399U DE 9218399 U DE9218399 U DE 9218399U DE 9218399 U1 DE9218399 U1 DE 9218399U1
Authority
DE
Germany
Prior art keywords
length
measuring system
angle measuring
angle
measuring
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 - Lifetime
Application number
DE9218399U
Other languages
German (de)
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.)
Dr Johannes Heidenhain GmbH
Original Assignee
Dr Johannes Heidenhain GmbH
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 Dr Johannes Heidenhain GmbH filed Critical Dr Johannes Heidenhain GmbH
Priority to DE9218399U priority Critical patent/DE9218399U1/en
Priority claimed from DE4244126A external-priority patent/DE4244126C1/en
Publication of DE9218399U1 publication Critical patent/DE9218399U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
DE9218399U 1992-12-24 1992-12-24 Length or angle measuring system Expired - Lifetime DE9218399U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9218399U DE9218399U1 (en) 1992-12-24 1992-12-24 Length or angle measuring system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9218399U DE9218399U1 (en) 1992-12-24 1992-12-24 Length or angle measuring system
DE4244126A DE4244126C1 (en) 1992-12-24 1992-12-24 Length or angle optical measurement system - has astigmatic or anamorphotic optics for limiting illumination of scanning region by concentrating LED rays crossing incremental scale and expanding rays in scale direction

Publications (1)

Publication Number Publication Date
DE9218399U1 true DE9218399U1 (en) 1994-01-27

Family

ID=25921798

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9218399U Expired - Lifetime DE9218399U1 (en) 1992-12-24 1992-12-24 Length or angle measuring system

Country Status (1)

Country Link
DE (1) DE9218399U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0672891B2 (en) † 1994-03-14 2005-05-18 Canon Kabushiki Kaisha Optical displacement sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0672891B2 (en) † 1994-03-14 2005-05-18 Canon Kabushiki Kaisha Optical displacement sensor

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