JPS56143545A - Optical reproducing device - Google Patents

Optical reproducing device

Info

Publication number
JPS56143545A
JPS56143545A JP4544980A JP4544980A JPS56143545A JP S56143545 A JPS56143545 A JP S56143545A JP 4544980 A JP4544980 A JP 4544980A JP 4544980 A JP4544980 A JP 4544980A JP S56143545 A JPS56143545 A JP S56143545A
Authority
JP
Japan
Prior art keywords
convex lens
diffraction grating
distance
incident aperture
tracking
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
JP4544980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6130326B2 (enrdf_load_stackoverflow
Inventor
Tadao Nagai
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.)
Teac Corp
Original Assignee
Teac Corp
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 Teac Corp filed Critical Teac Corp
Priority to JP4544980A priority Critical patent/JPS56143545A/ja
Publication of JPS56143545A publication Critical patent/JPS56143545A/ja
Publication of JPS6130326B2 publication Critical patent/JPS6130326B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP4544980A 1980-04-07 1980-04-07 Optical reproducing device Granted JPS56143545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4544980A JPS56143545A (en) 1980-04-07 1980-04-07 Optical reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4544980A JPS56143545A (en) 1980-04-07 1980-04-07 Optical reproducing device

Publications (2)

Publication Number Publication Date
JPS56143545A true JPS56143545A (en) 1981-11-09
JPS6130326B2 JPS6130326B2 (enrdf_load_stackoverflow) 1986-07-12

Family

ID=12719643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4544980A Granted JPS56143545A (en) 1980-04-07 1980-04-07 Optical reproducing device

Country Status (1)

Country Link
JP (1) JPS56143545A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139220U (enrdf_load_stackoverflow) * 1986-02-26 1987-09-02

Also Published As

Publication number Publication date
JPS6130326B2 (enrdf_load_stackoverflow) 1986-07-12

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