JPH03128803U - - Google Patents

Info

Publication number
JPH03128803U
JPH03128803U JP3808690U JP3808690U JPH03128803U JP H03128803 U JPH03128803 U JP H03128803U JP 3808690 U JP3808690 U JP 3808690U JP 3808690 U JP3808690 U JP 3808690U JP H03128803 U JPH03128803 U JP H03128803U
Authority
JP
Japan
Prior art keywords
optical disk
scale
measuring device
diffracted light
guide groove
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
JP3808690U
Other languages
English (en)
Japanese (ja)
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 JP3808690U priority Critical patent/JPH03128803U/ja
Publication of JPH03128803U publication Critical patent/JPH03128803U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP3808690U 1990-04-11 1990-04-11 Pending JPH03128803U (US20100170793A1-20100708-C00006.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3808690U JPH03128803U (US20100170793A1-20100708-C00006.png) 1990-04-11 1990-04-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3808690U JPH03128803U (US20100170793A1-20100708-C00006.png) 1990-04-11 1990-04-11

Publications (1)

Publication Number Publication Date
JPH03128803U true JPH03128803U (US20100170793A1-20100708-C00006.png) 1991-12-25

Family

ID=31545779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3808690U Pending JPH03128803U (US20100170793A1-20100708-C00006.png) 1990-04-11 1990-04-11

Country Status (1)

Country Link
JP (1) JPH03128803U (US20100170793A1-20100708-C00006.png)

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