JPS58158049A - 光学的情報記録装置 - Google Patents

光学的情報記録装置

Info

Publication number
JPS58158049A
JPS58158049A JP57039944A JP3994482A JPS58158049A JP S58158049 A JPS58158049 A JP S58158049A JP 57039944 A JP57039944 A JP 57039944A JP 3994482 A JP3994482 A JP 3994482A JP S58158049 A JPS58158049 A JP S58158049A
Authority
JP
Japan
Prior art keywords
recording
lens
light
plate
reflected
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
JP57039944A
Other languages
English (en)
Japanese (ja)
Other versions
JPS644257B2 (enrdf_load_stackoverflow
Inventor
Toshiaki Kashihara
樫原　俊昭
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57039944A priority Critical patent/JPS58158049A/ja
Publication of JPS58158049A publication Critical patent/JPS58158049A/ja
Publication of JPS644257B2 publication Critical patent/JPS644257B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1359—Single prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Head (AREA)
  • Automatic Focus Adjustment (AREA)
JP57039944A 1982-03-12 1982-03-12 光学的情報記録装置 Granted JPS58158049A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57039944A JPS58158049A (ja) 1982-03-12 1982-03-12 光学的情報記録装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57039944A JPS58158049A (ja) 1982-03-12 1982-03-12 光学的情報記録装置

Publications (2)

Publication Number Publication Date
JPS58158049A true JPS58158049A (ja) 1983-09-20
JPS644257B2 JPS644257B2 (enrdf_load_stackoverflow) 1989-01-25

Family

ID=12567060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57039944A Granted JPS58158049A (ja) 1982-03-12 1982-03-12 光学的情報記録装置

Country Status (1)

Country Link
JP (1) JPS58158049A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61157919U (enrdf_load_stackoverflow) * 1985-03-20 1986-09-30

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPECTRUM=1979 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61157919U (enrdf_load_stackoverflow) * 1985-03-20 1986-09-30

Also Published As

Publication number Publication date
JPS644257B2 (enrdf_load_stackoverflow) 1989-01-25

Similar Documents

Publication Publication Date Title
US4564931A (en) Optical recording and reproducing head
JP2580390B2 (ja) 光ディスクマスターの作成装置
JP2725632B2 (ja) 光ヘッド装置
JP4258029B2 (ja) 光学記録媒体からの読み出し又は該媒体への書き込み用の装置
US4841510A (en) Optical characteristic measuring apparatus for an optical recording medium substrate
JP3167066B2 (ja) 光記録再生装置
US5528576A (en) Optical head including a halfwave plate and a monaxial crystal for splitting a light beam into two orthogonal, polarized light beams
JPS58158049A (ja) 光学的情報記録装置
JPH0714242A (ja) ２ビーム光ヘッド
KR100689722B1 (ko) 내부에 이동 가능형 소자의 위치를 검출하는 검출계를포함한 광학 주사장치
JP2529376B2 (ja) 光ディスク原盤の作成装置
JPH0321973B2 (enrdf_load_stackoverflow)
JPH0628704A (ja) 光学ヘッド装置
JPH0517528B2 (enrdf_load_stackoverflow)
JPS60251533A (ja) 光情報検出装置
JPS63181145A (ja) 磁気光学ヘツド
JPS6292144A (ja) 複数光スポツトを持つ光学的記録再生装置
JPH04125826A (ja) 光ヘッド装置
KR100223815B1 (ko) 광픽업 시스템의 개구수 조절장치
JP2865822B2 (ja) 光ヘッド
JPH08329518A (ja) 光ピックアップ
JP2661088B2 (ja) 光ヘッド
JP2738838B2 (ja) 光磁気ピックアップ
JPH01294236A (ja) 光ヘツド
JPS5897141A (ja) 光学的情報記録再生装置