JPS6136298B2 - - Google Patents

Info

Publication number
JPS6136298B2
JPS6136298B2 JP53126553A JP12655378A JPS6136298B2 JP S6136298 B2 JPS6136298 B2 JP S6136298B2 JP 53126553 A JP53126553 A JP 53126553A JP 12655378 A JP12655378 A JP 12655378A JP S6136298 B2 JPS6136298 B2 JP S6136298B2
Authority
JP
Japan
Prior art keywords
semiconductor laser
light
laser
optical
change
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
JP53126553A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5553776A (en
Inventor
Masahiko Fujiwara
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP12655378A priority Critical patent/JPS5553776A/ja
Publication of JPS5553776A publication Critical patent/JPS5553776A/ja
Publication of JPS6136298B2 publication Critical patent/JPS6136298B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Semiconductor Lasers (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP12655378A 1978-10-13 1978-10-13 Optical information reading method Granted JPS5553776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12655378A JPS5553776A (en) 1978-10-13 1978-10-13 Optical information reading method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12655378A JPS5553776A (en) 1978-10-13 1978-10-13 Optical information reading method

Publications (2)

Publication Number Publication Date
JPS5553776A JPS5553776A (en) 1980-04-19
JPS6136298B2 true JPS6136298B2 (ko) 1986-08-18

Family

ID=14938010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12655378A Granted JPS5553776A (en) 1978-10-13 1978-10-13 Optical information reading method

Country Status (1)

Country Link
JP (1) JPS5553776A (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792438A (en) * 1980-11-28 1982-06-09 Ricoh Co Ltd Recording method by laser beam
US4564756A (en) * 1984-01-06 1986-01-14 International Business Machines Corporation Proximity sensor with a light-emitting diode which simultaneously emits and detects light
JPH0697261B2 (ja) * 1984-06-01 1994-11-30 シャープ株式会社 半導体レ−ザを用いた微小変位測定装置

Also Published As

Publication number Publication date
JPS5553776A (en) 1980-04-19

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