JPS5342523A - Optical information recording media and its reader - Google Patents

Optical information recording media and its reader

Info

Publication number
JPS5342523A
JPS5342523A JP11776276A JP11776276A JPS5342523A JP S5342523 A JPS5342523 A JP S5342523A JP 11776276 A JP11776276 A JP 11776276A JP 11776276 A JP11776276 A JP 11776276A JP S5342523 A JPS5342523 A JP S5342523A
Authority
JP
Japan
Prior art keywords
optical information
reader
information recording
recording media
visible region
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
JP11776276A
Other languages
Japanese (ja)
Inventor
Shuji Harada
Masaaki Tanaka
Tetsuo Yamaguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11776276A priority Critical patent/JPS5342523A/en
Publication of JPS5342523A publication Critical patent/JPS5342523A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To enable the read-in with the light pen, by superimposing the optical filter absorbing much light in visible region and passing much light of specific wave length outside the visible region to the recording region of the optical information display code such as bar code.
COPYRIGHT: (C)1978,JPO&Japio
JP11776276A 1976-09-29 1976-09-29 Optical information recording media and its reader Pending JPS5342523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11776276A JPS5342523A (en) 1976-09-29 1976-09-29 Optical information recording media and its reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11776276A JPS5342523A (en) 1976-09-29 1976-09-29 Optical information recording media and its reader

Publications (1)

Publication Number Publication Date
JPS5342523A true JPS5342523A (en) 1978-04-18

Family

ID=14719683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11776276A Pending JPS5342523A (en) 1976-09-29 1976-09-29 Optical information recording media and its reader

Country Status (1)

Country Link
JP (1) JPS5342523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5784071U (en) * 1980-10-31 1982-05-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5784071U (en) * 1980-10-31 1982-05-24

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