AKUSTOOPTISCHE INTENSITÄTSREGELUNG EINES LASERSTRAHLS
摘要
<p>The intensity of a beam of light used to etch concentric servo tracks on a magnetic medium is adjusted with an acousto-optical device to maintain a substantially constant energy density delivered by the beam while the optics which generate the beam move radially of the disk.</p>
申请公布号
DE69316618(D1)
申请公布日期
1998.02.26
申请号
DE1993616618
申请日期
1993.06.08
申请人
MINNESOTA MINING AND MFG. CO., SAINT PAUL, MINN., US
发明人
THOMAS, FRED, CHARLES, KAYSVILLE, UT 84037, US;WALLENTINE, DON, W., LAYTON, UT 84040, US;BERO, JAMES, OGDEN, UT 84403, US;WILSON, SCOTT, WESTMINSTER, CO 80030, US
