JPS52146604A - Information reader using laser beam - Google Patents

Information reader using laser beam

Info

Publication number
JPS52146604A
JPS52146604A JP6394576A JP6394576A JPS52146604A JP S52146604 A JPS52146604 A JP S52146604A JP 6394576 A JP6394576 A JP 6394576A JP 6394576 A JP6394576 A JP 6394576A JP S52146604 A JPS52146604 A JP S52146604A
Authority
JP
Japan
Prior art keywords
laser beam
information reader
output beam
modulating
eliminate
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.)
Granted
Application number
JP6394576A
Other languages
Japanese (ja)
Other versions
JPS5920171B2 (en
Inventor
Shunpei Tanaka
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP51063945A priority Critical patent/JPS5920171B2/en
Publication of JPS52146604A publication Critical patent/JPS52146604A/en
Publication of JPS5920171B2 publication Critical patent/JPS5920171B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE: To eliminate a noise caused by a varying laser output beam by modulating an information signal with an electric signal indicating beam variations which is obtained by receiving and converting part of an output beam from the laser source.
COPYRIGHT: (C)1977,JPO&Japio
JP51063945A 1976-06-01 1976-06-01 Information reading device using laser beam Expired JPS5920171B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51063945A JPS5920171B2 (en) 1976-06-01 1976-06-01 Information reading device using laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51063945A JPS5920171B2 (en) 1976-06-01 1976-06-01 Information reading device using laser beam

Publications (2)

Publication Number Publication Date
JPS52146604A true JPS52146604A (en) 1977-12-06
JPS5920171B2 JPS5920171B2 (en) 1984-05-11

Family

ID=13243982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51063945A Expired JPS5920171B2 (en) 1976-06-01 1976-06-01 Information reading device using laser beam

Country Status (1)

Country Link
JP (1) JPS5920171B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127276A (en) * 1980-03-10 1981-10-05 Omron Tateisi Electronics Co Photoelectric switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127276A (en) * 1980-03-10 1981-10-05 Omron Tateisi Electronics Co Photoelectric switch

Also Published As

Publication number Publication date
JPS5920171B2 (en) 1984-05-11

Similar Documents

Publication Publication Date Title
JPS52128100A (en) Driver circuit
JPS52146604A (en) Information reader using laser beam
JPS5338311A (en) Reading system
JPS538136A (en) Copying process by means of laser
JPS5319A (en) Information reading unit
JPS5339158A (en) Object shape information generating system
JPS5412518A (en) Scanning velocity modulating circuit
JPS52152117A (en) Information reader
JPS5384668A (en) Parallel-processing-type signal conversion circuit
JPS5383760A (en) Branching method for optical transmission
JPS5320349A (en) Measuring method for wave length dispersion of photo-fiber
JPS5333564A (en) Waveform sampling system
JPS5427715A (en) Pickup unit
JPS5422078A (en) Command circuit
JPS5433741A (en) Optical reader
JPS5347254A (en) Generator circuit for delay time properties
JPS5321559A (en) Synchronous circuit
JPS5367452A (en) Laser beam detection system
JPS5321564A (en) Scan-type electron microscope
JPS5442931A (en) Output device for information processor
JPS52127580A (en) Information transmitting system
JPS53118942A (en) Character recognizing unit
JPS52100965A (en) Delta modulator
JPS5421157A (en) Straight line detection circuit
JPS52120696A (en) Radar device