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JPS57163814A - Photoencoder - Google Patents

Photoencoder

Info

Publication number
JPS57163814A
JPS57163814A JP4877081A JP4877081A JPS57163814A JP S57163814 A JPS57163814 A JP S57163814A JP 4877081 A JP4877081 A JP 4877081A JP 4877081 A JP4877081 A JP 4877081A JP S57163814 A JPS57163814 A JP S57163814A
Authority
JP
Japan
Prior art keywords
photodiodes
vapor
mask
printed
photoencoder
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.)
Pending
Application number
JP4877081A
Other languages
Japanese (ja)
Inventor
Shingo Kato
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP4877081A priority Critical patent/JPS57163814A/en
Publication of JPS57163814A publication Critical patent/JPS57163814A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To eliminate the need for a mask and to achieve inexpensive, excellent detecting operation by providing a photodetecting elements having a mask slit pattern printed, vapor-depositied, or stuck directly on the array pattern of photodiodes. CONSTITUTION:On the photodetecting element 5 of a photoencoder, photodiodes 10 are formed. On the array pattern of those photodiodes, a transparent synthetic resin film having a printed or vapor-deposited mask slit pattern 13 is stuck.
JP4877081A 1981-04-01 1981-04-01 Photoencoder Pending JPS57163814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4877081A JPS57163814A (en) 1981-04-01 1981-04-01 Photoencoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4877081A JPS57163814A (en) 1981-04-01 1981-04-01 Photoencoder

Publications (1)

Publication Number Publication Date
JPS57163814A true JPS57163814A (en) 1982-10-08

Family

ID=12812507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4877081A Pending JPS57163814A (en) 1981-04-01 1981-04-01 Photoencoder

Country Status (1)

Country Link
JP (1) JPS57163814A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167815A (en) * 1985-01-19 1986-07-29 Nippon Soken Inc Optical rotary encoder
FR2731270A1 (en) * 1995-03-01 1996-09-06 Portescap INCREMENTAL OPTICAL ENCODER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167815A (en) * 1985-01-19 1986-07-29 Nippon Soken Inc Optical rotary encoder
FR2731270A1 (en) * 1995-03-01 1996-09-06 Portescap INCREMENTAL OPTICAL ENCODER

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