Laser data recording method

Details Laser data recording method Laser data recording method

1981-03-12

1983-05-10

Schreyer, Stafford D.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346 76L, 346108, 430945, 332 751, G01D 1514, H04N 1036, H01S 310

Patent

active

043832628

ABSTRACT:
A laser data recording method in which data is recorded on a heat mode recording material with high sensitivity and low laser power. A scanned laser beam is adjusted to have a substantially circular configuration on the recording material with a diameter defined at an intensity value of 1/e.sup.2 of approximately one scanning line pitch on the recording material. The laser beam is intensity modulated in such a manner that the ratio of the laser beam intensity in the "on" state to the laser beam intensity in the "off" state is in a range of 1:0.24 to 1:0.53, more preferably 1:0.25 to 1:0.50.

REFERENCES:
patent: 4015221 (1977-03-01), Dalton
patent: 4225873 (1980-09-01), Winslow

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