JPS5963517A - 光電式エンコ−ダ - Google Patents

光電式エンコ−ダ

Info

Publication number
JPS5963517A
JPS5963517A JP17417382A JP17417382A JPS5963517A JP S5963517 A JPS5963517 A JP S5963517A JP 17417382 A JP17417382 A JP 17417382A JP 17417382 A JP17417382 A JP 17417382A JP S5963517 A JPS5963517 A JP S5963517A
Authority
JP
Japan
Prior art keywords
main scale
light
scale
luminous flux
index
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.)
Granted
Application number
JP17417382A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0237963B2 (enrdf_load_stackoverflow
Inventor
Fujio Kanetani
金谷　冨士夫
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP17417382A priority Critical patent/JPS5963517A/ja
Publication of JPS5963517A publication Critical patent/JPS5963517A/ja
Publication of JPH0237963B2 publication Critical patent/JPH0237963B2/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
    • G01D5/347—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
JP17417382A 1982-10-04 1982-10-04 光電式エンコ−ダ Granted JPS5963517A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17417382A JPS5963517A (ja) 1982-10-04 1982-10-04 光電式エンコ−ダ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17417382A JPS5963517A (ja) 1982-10-04 1982-10-04 光電式エンコ−ダ

Publications (2)

Publication Number Publication Date
JPS5963517A true JPS5963517A (ja) 1984-04-11
JPH0237963B2 JPH0237963B2 (enrdf_load_stackoverflow) 1990-08-28

Family

ID=15973976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17417382A Granted JPS5963517A (ja) 1982-10-04 1982-10-04 光電式エンコ−ダ

Country Status (1)

Country Link
JP (1) JPS5963517A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124548A (en) * 1990-05-03 1992-06-23 Canon Kabushiki Kaisha Encoder for detecting relative displacement having first and second scales and a light receiving device
WO1998037383A1 (fr) * 1997-02-21 1998-08-27 Fanuc Ltd Codeur optique
WO1998059218A1 (fr) * 1997-06-23 1998-12-30 Fanuc Ltd Codeur optique rotatif
FR2779815A1 (fr) * 1998-06-02 1999-12-17 Ching Shun Wang Moyens de calcul de type a focalisation
WO2001035059A1 (en) * 1999-11-08 2001-05-17 Ballado Investments, Inc. Device for the optical detection and measurement of linear movements
EP0928954A3 (en) * 1998-01-07 2001-09-19 Fanuc Ltd Optical encoder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8405831B2 (en) * 2007-06-19 2013-03-26 3M Innovative Properties Company Systems and methods for indicating the position of a web

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494551A (enrdf_load_stackoverflow) * 1972-03-15 1974-01-16
JPS5174659A (enrdf_load_stackoverflow) * 1974-12-24 1976-06-28 Nippon Electric Co

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494551A (enrdf_load_stackoverflow) * 1972-03-15 1974-01-16
JPS5174659A (enrdf_load_stackoverflow) * 1974-12-24 1976-06-28 Nippon Electric Co

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124548A (en) * 1990-05-03 1992-06-23 Canon Kabushiki Kaisha Encoder for detecting relative displacement having first and second scales and a light receiving device
WO1998037383A1 (fr) * 1997-02-21 1998-08-27 Fanuc Ltd Codeur optique
US6703601B2 (en) 1997-02-21 2004-03-09 Fanuc, Ltd. Motion detection of an optical encoder by converging emitted light beams
WO1998059218A1 (fr) * 1997-06-23 1998-12-30 Fanuc Ltd Codeur optique rotatif
EP0928954A3 (en) * 1998-01-07 2001-09-19 Fanuc Ltd Optical encoder
FR2779815A1 (fr) * 1998-06-02 1999-12-17 Ching Shun Wang Moyens de calcul de type a focalisation
WO2001035059A1 (en) * 1999-11-08 2001-05-17 Ballado Investments, Inc. Device for the optical detection and measurement of linear movements

Also Published As

Publication number Publication date
JPH0237963B2 (enrdf_load_stackoverflow) 1990-08-28

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