JPH0151926B2 - - Google Patents

Info

Publication number
JPH0151926B2
JPH0151926B2 JP20916782A JP20916782A JPH0151926B2 JP H0151926 B2 JPH0151926 B2 JP H0151926B2 JP 20916782 A JP20916782 A JP 20916782A JP 20916782 A JP20916782 A JP 20916782A JP H0151926 B2 JPH0151926 B2 JP H0151926B2
Authority
JP
Japan
Prior art keywords
photoelectric conversion
diffraction grating
conversion element
gratings
grating
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
JP20916782A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5999220A (ja
Inventor
Yutaka Ichihara
Kazuyuki Takizawa
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
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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Priority to JP20916782A priority Critical patent/JPS5999220A/ja
Publication of JPS5999220A publication Critical patent/JPS5999220A/ja
Publication of JPH0151926B2 publication Critical patent/JPH0151926B2/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)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
JP20916782A 1982-11-29 1982-11-29 光電式のエンコ−ダ Granted JPS5999220A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20916782A JPS5999220A (ja) 1982-11-29 1982-11-29 光電式のエンコ−ダ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20916782A JPS5999220A (ja) 1982-11-29 1982-11-29 光電式のエンコ−ダ

Publications (2)

Publication Number Publication Date
JPS5999220A JPS5999220A (ja) 1984-06-07
JPH0151926B2 true JPH0151926B2 (en]) 1989-11-07

Family

ID=16568435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20916782A Granted JPS5999220A (ja) 1982-11-29 1982-11-29 光電式のエンコ−ダ

Country Status (1)

Country Link
JP (1) JPS5999220A (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63115011A (ja) * 1986-10-31 1988-05-19 Canon Inc 変位測定装置
JPH0669476B2 (ja) * 1986-11-07 1994-09-07 新次郎 辻 ゼラチン硬カプセルのフイルムコ−テイング方法
JP4843342B2 (ja) * 2006-03-16 2011-12-21 株式会社ミツトヨ 光電式インクリメンタル型エンコーダ
JP5112797B2 (ja) * 2007-09-14 2013-01-09 株式会社ミツトヨ 光電式インクリメンタル型エンコーダ
JP5069364B2 (ja) * 2011-06-17 2012-11-07 株式会社ミツトヨ 光電式インクリメンタル型エンコーダ

Also Published As

Publication number Publication date
JPS5999220A (ja) 1984-06-07

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