JPS5860334U - disc recording device - Google Patents

disc recording device

Info

Publication number
JPS5860334U
JPS5860334U JP15279881U JP15279881U JPS5860334U JP S5860334 U JPS5860334 U JP S5860334U JP 15279881 U JP15279881 U JP 15279881U JP 15279881 U JP15279881 U JP 15279881U JP S5860334 U JPS5860334 U JP S5860334U
Authority
JP
Japan
Prior art keywords
laser beam
optical system
disc recording
recording device
disc
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
JP15279881U
Other languages
Japanese (ja)
Inventor
捷 伊藤
文夫 原
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP15279881U priority Critical patent/JPS5860334U/en
Publication of JPS5860334U publication Critical patent/JPS5860334U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例の概略図、第２図は本考案の他
の実施例を示す図である。FIG. 1 is a schematic diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing another embodiment of the present invention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] レーザとレーザ光゛を変調する手段と、レーザ光を所定
の位置で所定の断面積に絞り込む光学系と、円盤を回転
させる機構と、上記光学系と円盤を相対的に移動させる
機構とから成る円盤記録装置において、上記絞り込み光
学系を出射し、被記録円盤を透過した記録用レーザ光の
強度を測定し、該レーザ光強度が所定の基準レベルとな
るようレーザ光変調手段を制御する手段を設けたことを
特徴とする円盤記録装置。Consisting of a laser and a means for modulating the laser beam, an optical system that narrows the laser beam to a predetermined cross-sectional area at a predetermined position, a mechanism that rotates a disk, and a mechanism that moves the optical system and the disk relatively. In the disc recording apparatus, means is provided for measuring the intensity of the recording laser beam emitted from the focusing optical system and transmitted through the recording disc, and controlling the laser beam modulation means so that the laser beam intensity becomes a predetermined reference level. A disc recording device characterized by:
JP15279881U 1981-10-16 1981-10-16 disc recording device Pending JPS5860334U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15279881U JPS5860334U (en) 1981-10-16 1981-10-16 disc recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15279881U JPS5860334U (en) 1981-10-16 1981-10-16 disc recording device

Publications (1)

Publication Number Publication Date
JPS5860334U true JPS5860334U (en) 1983-04-23

Family

ID=29945438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15279881U Pending JPS5860334U (en) 1981-10-16 1981-10-16 disc recording device

Country Status (1)

Country Link
JP (1) JPS5860334U (en)

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