JPH01116919U - - Google Patents

Info

Publication number
JPH01116919U
JPH01116919U JP1164488U JP1164488U JPH01116919U JP H01116919 U JPH01116919 U JP H01116919U JP 1164488 U JP1164488 U JP 1164488U JP 1164488 U JP1164488 U JP 1164488U JP H01116919 U JPH01116919 U JP H01116919U
Authority
JP
Japan
Prior art keywords
hologram
mirror
disk surface
optical head
integrated
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
JP1164488U
Other languages
English (en)
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 JP1164488U priority Critical patent/JPH01116919U/ja
Publication of JPH01116919U publication Critical patent/JPH01116919U/ja
Pending legal-status Critical Current

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  • Optical Head (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示すホログラム光
ヘツドの側面図、第2図は同平面図、第3図は従
来のホログラム光ヘツドの側面図、第4図は同平
面図、第5図は光検出器上でのスポツト形成の説
明図である。 1……レーザダイオード、7……光検出器、8
……光デイスク、10……透過型90°ミラー、
11……ホログラム、12……ホログラム一体型
90°ミラー、14……オプトベース。

Claims (1)

  1. 【実用新案登録請求の範囲】 光軸がデイスク面と平行なレーザ光を90°ミ
    ラーで直角に曲げてデイスク面に入射させる光路
    系を持つホログラム光ヘツドにおいて、 透過型90°ミラーの入射面にホログラムを形
    成してなるホログラム一体型90°ミラーを備え
    たことを特徴とするホログラム光ヘツド。
JP1164488U 1988-01-30 1988-01-30 Pending JPH01116919U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1164488U JPH01116919U (ja) 1988-01-30 1988-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1164488U JPH01116919U (ja) 1988-01-30 1988-01-30

Publications (1)

Publication Number Publication Date
JPH01116919U true JPH01116919U (ja) 1989-08-07

Family

ID=31220379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1164488U Pending JPH01116919U (ja) 1988-01-30 1988-01-30

Country Status (1)

Country Link
JP (1) JPH01116919U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62124637A (ja) * 1985-11-25 1987-06-05 Mitsubishi Electric Corp 光ピツクアツプ
JPS62139145A (ja) * 1985-12-11 1987-06-22 Fujitsu Ltd 光ピツクアツプ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62124637A (ja) * 1985-11-25 1987-06-05 Mitsubishi Electric Corp 光ピツクアツプ
JPS62139145A (ja) * 1985-12-11 1987-06-22 Fujitsu Ltd 光ピツクアツプ

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