发明申请
US20080247304A1 INFORMATION RECORDING MEDIUM 审中-公开
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INFORMATION RECORDING MEDIUM
摘要:
According to one embodiment, when recording information by using a semiconductor laser at 450 nm or less, an information recording medium satisfies 9.5×10−8≧λ/(X*NA)≧4.6×10−8 (where X is the linear recording velocity, λ is the laser wavelength, and NA is the numerical aperture).
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