JPS5274219A - Device for preventing displacement of focal point of optical information reader - Google Patents

Device for preventing displacement of focal point of optical information reader

Info

Publication number
JPS5274219A
JPS5274219A JP50151148A JP15114875A JPS5274219A JP S5274219 A JPS5274219 A JP S5274219A JP 50151148 A JP50151148 A JP 50151148A JP 15114875 A JP15114875 A JP 15114875A JP S5274219 A JPS5274219 A JP S5274219A
Authority
JP
Japan
Prior art keywords
focal point
optical information
information reader
preventing displacement
displacement
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
JP50151148A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56858B2 (enExample
Inventor
Kenjirou Gotou
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.)
Mansei Kogyo KK
Original Assignee
Mansei Kogyo 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 Mansei Kogyo KK filed Critical Mansei Kogyo KK
Priority to JP50151148A priority Critical patent/JPS5274219A/ja
Publication of JPS5274219A publication Critical patent/JPS5274219A/ja
Publication of JPS56858B2 publication Critical patent/JPS56858B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
JP50151148A 1975-12-17 1975-12-17 Device for preventing displacement of focal point of optical information reader Granted JPS5274219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50151148A JPS5274219A (en) 1975-12-17 1975-12-17 Device for preventing displacement of focal point of optical information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50151148A JPS5274219A (en) 1975-12-17 1975-12-17 Device for preventing displacement of focal point of optical information reader

Publications (2)

Publication Number Publication Date
JPS5274219A true JPS5274219A (en) 1977-06-22
JPS56858B2 JPS56858B2 (enExample) 1981-01-09

Family

ID=15512410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50151148A Granted JPS5274219A (en) 1975-12-17 1975-12-17 Device for preventing displacement of focal point of optical information reader

Country Status (1)

Country Link
JP (1) JPS5274219A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143948A (enExample) * 1974-08-08 1976-04-15 Philips Nv

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143948A (enExample) * 1974-08-08 1976-04-15 Philips Nv

Also Published As

Publication number Publication date
JPS56858B2 (enExample) 1981-01-09

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