JPH02128220U - - Google Patents

Info

Publication number
JPH02128220U
JPH02128220U JP3570489U JP3570489U JPH02128220U JP H02128220 U JPH02128220 U JP H02128220U JP 3570489 U JP3570489 U JP 3570489U JP 3570489 U JP3570489 U JP 3570489U JP H02128220 U JPH02128220 U JP H02128220U
Authority
JP
Japan
Prior art keywords
objective lens
apodized filter
signal
recording medium
apodized
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
JP3570489U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP3570489U priority Critical patent/JPH02128220U/ja
Publication of JPH02128220U publication Critical patent/JPH02128220U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
JP3570489U 1989-03-28 1989-03-28 Pending JPH02128220U (US20100056889A1-20100304-C00004.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3570489U JPH02128220U (US20100056889A1-20100304-C00004.png) 1989-03-28 1989-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3570489U JPH02128220U (US20100056889A1-20100304-C00004.png) 1989-03-28 1989-03-28

Publications (1)

Publication Number Publication Date
JPH02128220U true JPH02128220U (US20100056889A1-20100304-C00004.png) 1990-10-23

Family

ID=31541288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3570489U Pending JPH02128220U (US20100056889A1-20100304-C00004.png) 1989-03-28 1989-03-28

Country Status (1)

Country Link
JP (1) JPH02128220U (US20100056889A1-20100304-C00004.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257135A (ja) * 1985-09-05 1987-03-12 Pioneer Electronic Corp 光学式情報記録再生装置におけるピツクアツプ装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257135A (ja) * 1985-09-05 1987-03-12 Pioneer Electronic Corp 光学式情報記録再生装置におけるピツクアツプ装置

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