JPS57198813A - Optoelectrical encoder - Google Patents

Optoelectrical encoder

Info

Publication number
JPS57198813A
JPS57198813A JP8408381A JP8408381A JPS57198813A JP S57198813 A JPS57198813 A JP S57198813A JP 8408381 A JP8408381 A JP 8408381A JP 8408381 A JP8408381 A JP 8408381A JP S57198813 A JPS57198813 A JP S57198813A
Authority
JP
Japan
Prior art keywords
scale
light receiving
strip
fine
section
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
JP8408381A
Other languages
Japanese (ja)
Other versions
JPS6032125B2 (en
Inventor
Yoshihiko Kabaya
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.)
Mitsutoyo Manufacturing Co Ltd
Original Assignee
Mitsutoyo Manufacturing 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 Mitsutoyo Manufacturing Co Ltd filed Critical Mitsutoyo Manufacturing Co Ltd
Priority to JP56084083A priority Critical patent/JPS6032125B2/en
Priority to US06/380,818 priority patent/US4499374A/en
Priority to GB8214930A priority patent/GB2099993B/en
Priority to DE19823220560 priority patent/DE3220560A1/en
Publication of JPS57198813A publication Critical patent/JPS57198813A/en
Publication of JPS6032125B2 publication Critical patent/JPS6032125B2/en
Expired 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Optical Transform (AREA)
  • Light Receiving Elements (AREA)

Abstract

PURPOSE:To achieve further miaturization and reduction in the number of parts by alternately arranging a fine-strip-shaped light-reflecting section and non- reflecting section on a substrate in a first scale while a fine-strip-shaped light receiving sections are arranged at a fixed pitch in a second scale. CONSTITUTION:An optoelectric encoder relatively moves first and second scales having optical grids to detect physical quantity from the brightness of light. A non-reflecting section comprising a light transmitting section or a light absorbing section between reflecting sections 6 of a first scale M. In a second scale S, fine- strip-shaped light receiving sections 5 are arranged at a fixed pitch. An index scale and a light receiving element are integrated to discharge the function of an index sensor. The arrangement of this invention enables integration of the scale and the light receiving element making the encoder thinner and enabling, further miniaturization and reduction in the number of parts.
JP56084083A 1981-06-01 1981-06-01 Photoelectric encoder Expired JPS6032125B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56084083A JPS6032125B2 (en) 1981-06-01 1981-06-01 Photoelectric encoder
US06/380,818 US4499374A (en) 1981-06-01 1982-05-21 Photoelectrical encoder employing an optical grating
GB8214930A GB2099993B (en) 1981-06-01 1982-05-21 Photoelectric displacement encoder
DE19823220560 DE3220560A1 (en) 1981-06-01 1982-06-01 PHOTOELECTRIC ENCODER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56084083A JPS6032125B2 (en) 1981-06-01 1981-06-01 Photoelectric encoder

Publications (2)

Publication Number Publication Date
JPS57198813A true JPS57198813A (en) 1982-12-06
JPS6032125B2 JPS6032125B2 (en) 1985-07-26

Family

ID=13820589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56084083A Expired JPS6032125B2 (en) 1981-06-01 1981-06-01 Photoelectric encoder

Country Status (1)

Country Link
JP (1) JPS6032125B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06196726A (en) * 1992-12-24 1994-07-15 Canon Inc Light receiving element, and displacement detector equipped with this light receiving device
JPH09236449A (en) * 1996-02-29 1997-09-09 Nec Corp Rotation detection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3790038T1 (en) * 1986-03-14 1988-03-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06196726A (en) * 1992-12-24 1994-07-15 Canon Inc Light receiving element, and displacement detector equipped with this light receiving device
JPH09236449A (en) * 1996-02-29 1997-09-09 Nec Corp Rotation detection device

Also Published As

Publication number Publication date
JPS6032125B2 (en) 1985-07-26

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