JPH032858Y2 - - Google Patents

Info

Publication number
JPH032858Y2
JPH032858Y2 JP1981022934U JP2293481U JPH032858Y2 JP H032858 Y2 JPH032858 Y2 JP H032858Y2 JP 1981022934 U JP1981022934 U JP 1981022934U JP 2293481 U JP2293481 U JP 2293481U JP H032858 Y2 JPH032858 Y2 JP H032858Y2
Authority
JP
Japan
Prior art keywords
light
receiving element
reflected
rotation detector
light source
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
JP1981022934U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57135967U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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 filed Critical
Priority to JP1981022934U priority Critical patent/JPH032858Y2/ja
Publication of JPS57135967U publication Critical patent/JPS57135967U/ja
Application granted granted Critical
Publication of JPH032858Y2 publication Critical patent/JPH032858Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Optical Transform (AREA)
JP1981022934U 1981-02-20 1981-02-20 Expired JPH032858Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981022934U JPH032858Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-02-20 1981-02-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981022934U JPH032858Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-02-20 1981-02-20

Publications (2)

Publication Number Publication Date
JPS57135967U JPS57135967U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-08-25
JPH032858Y2 true JPH032858Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-01-25

Family

ID=29820711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981022934U Expired JPH032858Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-02-20 1981-02-20

Country Status (1)

Country Link
JP (1) JPH032858Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2553788Y2 (ja) * 1990-11-26 1997-11-12 ソニー株式会社 回転検出装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539104A (en) * 1976-07-13 1978-01-27 Seiko Instr & Electronics Ltd Cassette tape running speed detector
JPS5754051Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1977-09-30 1982-11-22

Also Published As

Publication number Publication date
JPS57135967U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-08-25

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