| 摘要 |
PROBLEM TO BE SOLVED: To make an information recording work more efficient without causing a variation in the intensity of a pulse light and without lowering the accuracy of information reading even when the frequency of pulses is raised in a technology recording information on an optical recording medium with the pulse train of a laser beam. SOLUTION: This method has a storage stage A storing a light emitting energy generated in a laser oscillator for a determined time, a light emitting stage B releasing the light emitting energy stored in the storage stage instantly to make it pulsively emit a light and a continually releasing stage C continuation the releasing of the light emitting energy generated in the laser oscillator in the interval from the light emitting stage to a next storage stage. Here, a pulse train P3 having peak waveforms P32 whose peak output value VP is constant by combining these stages with patterns corresponding to information on a bar code 16 or the like. |
