JPH0128887B2 - - Google Patents

Info

Publication number
JPH0128887B2
JPH0128887B2 JP56055406A JP5540681A JPH0128887B2 JP H0128887 B2 JPH0128887 B2 JP H0128887B2 JP 56055406 A JP56055406 A JP 56055406A JP 5540681 A JP5540681 A JP 5540681A JP H0128887 B2 JPH0128887 B2 JP H0128887B2
Authority
JP
Japan
Prior art keywords
grating
light source
lens
fixed
light
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
Application number
JP56055406A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57169613A (en
Inventor
Takashi Yokokura
Fumitomo Kondo
Tsuneo Sasaki
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.)
Tokyo Optical Co Ltd
Original Assignee
Tokyo Optical Co Ltd
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 Tokyo Optical Co Ltd filed Critical Tokyo Optical Co Ltd
Priority to JP56055406A priority Critical patent/JPS57169613A/ja
Publication of JPS57169613A publication Critical patent/JPS57169613A/ja
Publication of JPH0128887B2 publication Critical patent/JPH0128887B2/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
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
JP56055406A 1981-04-13 1981-04-13 Photoelectric encoder Granted JPS57169613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56055406A JPS57169613A (en) 1981-04-13 1981-04-13 Photoelectric encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055406A JPS57169613A (en) 1981-04-13 1981-04-13 Photoelectric encoder

Publications (2)

Publication Number Publication Date
JPS57169613A JPS57169613A (en) 1982-10-19
JPH0128887B2 true JPH0128887B2 (enExample) 1989-06-06

Family

ID=12997654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055406A Granted JPS57169613A (en) 1981-04-13 1981-04-13 Photoelectric encoder

Country Status (1)

Country Link
JP (1) JPS57169613A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412128C1 (de) * 1984-03-31 1985-05-09 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Positionsmesseinrichtung
US4672201A (en) * 1985-11-14 1987-06-09 Acu-Rite Incorporated Phase controlled incremental distance measuring system
DE3616144A1 (de) * 1986-05-14 1987-11-19 Heidenhain Gmbh Dr Johannes Fotoelektrische messeinrichtung
AT404637B (de) * 1993-01-21 1999-01-25 Rsf Elektronik Gmbh Photoelektrische positionsmesseinrichtung
CN108571992B (zh) * 2017-03-09 2020-04-21 曾吉旺 光学扫描式双层导光编码器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5636014A (en) * 1979-08-31 1981-04-09 Tokyo Seimitsu Co Ltd Detection method

Also Published As

Publication number Publication date
JPS57169613A (en) 1982-10-19

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