JPS5320941A - Light recorder - Google Patents

Light recorder

Info

Publication number
JPS5320941A
JPS5320941A JP9483476A JP9483476A JPS5320941A JP S5320941 A JPS5320941 A JP S5320941A JP 9483476 A JP9483476 A JP 9483476A JP 9483476 A JP9483476 A JP 9483476A JP S5320941 A JPS5320941 A JP S5320941A
Authority
JP
Japan
Prior art keywords
light
light recorder
read
recorder
impart
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
JP9483476A
Other languages
Japanese (ja)
Inventor
Motoyasu Terao
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9483476A priority Critical patent/JPS5320941A/en
Publication of JPS5320941A publication Critical patent/JPS5320941A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE: To obtain a large signal with one read head, by selecting the refracive index of a thin film and the depth of a recess so as to impart the difference between light paths near to about 1/2 of the wavelength of the read light in recording information by irradiating a conductive film with a working beam to form recesses.
COPYRIGHT: (C)1978,JPO&Japio
JP9483476A 1976-08-11 1976-08-11 Light recorder Pending JPS5320941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9483476A JPS5320941A (en) 1976-08-11 1976-08-11 Light recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9483476A JPS5320941A (en) 1976-08-11 1976-08-11 Light recorder

Publications (1)

Publication Number Publication Date
JPS5320941A true JPS5320941A (en) 1978-02-25

Family

ID=14121062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9483476A Pending JPS5320941A (en) 1976-08-11 1976-08-11 Light recorder

Country Status (1)

Country Link
JP (1) JPS5320941A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724036A (en) * 1980-07-18 1982-02-08 Sony Corp Optical information recording medium
JPS5755540A (en) * 1980-08-13 1982-04-02 Thomson Csf Heat and light method for writing information and information medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724036A (en) * 1980-07-18 1982-02-08 Sony Corp Optical information recording medium
JPS5755540A (en) * 1980-08-13 1982-04-02 Thomson Csf Heat and light method for writing information and information medium

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