JPS6211327B2 - - Google Patents

Info

Publication number
JPS6211327B2
JPS6211327B2 JP52111399A JP11139977A JPS6211327B2 JP S6211327 B2 JPS6211327 B2 JP S6211327B2 JP 52111399 A JP52111399 A JP 52111399A JP 11139977 A JP11139977 A JP 11139977A JP S6211327 B2 JPS6211327 B2 JP S6211327B2
Authority
JP
Japan
Prior art keywords
lens
optical system
semiconductor laser
information processing
processing device
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.)
Expired
Application number
JP52111399A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5445156A (en
Inventor
Keiji Kataoka
Seiji Yonezawa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14560157&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS6211327(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11139977A priority Critical patent/JPS5445156A/ja
Priority to US05/937,982 priority patent/US4235507A/en
Priority to CA311,309A priority patent/CA1109961A/en
Priority to NLAANVRAGE7809382,A priority patent/NL190494C/xx
Priority to GB7837018A priority patent/GB2006461B/en
Priority to FR7826599A priority patent/FR2403575A1/fr
Priority to DE19782840294 priority patent/DE2840294A1/de
Publication of JPS5445156A publication Critical patent/JPS5445156A/ja
Publication of JPS6211327B2 publication Critical patent/JPS6211327B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
JP11139977A 1977-09-16 1977-09-16 Optical system Granted JPS5445156A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP11139977A JPS5445156A (en) 1977-09-16 1977-09-16 Optical system
US05/937,982 US4235507A (en) 1977-09-16 1978-08-30 Optical system to condense light from a semiconductor laser into a circular spot
CA311,309A CA1109961A (en) 1977-09-16 1978-09-14 Optical system
NLAANVRAGE7809382,A NL190494C (nl) 1977-09-16 1978-09-14 Optische inrichting voor het bewerken van informatie.
GB7837018A GB2006461B (en) 1977-09-16 1978-09-15 Optical system
FR7826599A FR2403575A1 (fr) 1977-09-16 1978-09-15 Systeme optique pour reproduction d'informations
DE19782840294 DE2840294A1 (de) 1977-09-16 1978-09-15 Optisches system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11139977A JPS5445156A (en) 1977-09-16 1977-09-16 Optical system

Related Child Applications (5)

Application Number Title Priority Date Filing Date
JP58089107A Division JPS59124A (ja) 1983-05-23 1983-05-23 光学系
JP58089105A Division JPS59123A (ja) 1983-05-23 1983-05-23 光学系
JP58089106A Division JPS592242A (ja) 1983-05-23 1983-05-23 光学的情報再生装置
JP58089108A Division JPS59125A (ja) 1983-05-23 1983-05-23 光学系
JP58089104A Division JPS592241A (ja) 1983-05-23 1983-05-23 光学系

Publications (2)

Publication Number Publication Date
JPS5445156A JPS5445156A (en) 1979-04-10
JPS6211327B2 true JPS6211327B2 (en, 2012) 1987-03-12

Family

ID=14560157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11139977A Granted JPS5445156A (en) 1977-09-16 1977-09-16 Optical system

Country Status (1)

Country Link
JP (1) JPS5445156A (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750335A (en) * 1980-09-09 1982-03-24 Mitsubishi Electric Corp Optical information reproducer
JPS592241A (ja) * 1983-05-23 1984-01-07 Hitachi Ltd 光学系
JPS59123A (ja) * 1983-05-23 1984-01-05 Hitachi Ltd 光学系
JPS59125A (ja) * 1983-05-23 1984-01-05 Hitachi Ltd 光学系
JPS59124A (ja) * 1983-05-23 1984-01-05 Hitachi Ltd 光学系
JPS5998329A (ja) * 1983-10-28 1984-06-06 Hitachi Ltd 光情報処理装置

Also Published As

Publication number Publication date
JPS5445156A (en) 1979-04-10

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