| 摘要 |
An improved light-readable information recording medium is provided that comprises an optical data storage structure having lands and pits, in which the depth of the pits is about formula (I), wherein lambda is the wavelength of light used to read the information recording medium, <i>m</i> is the order of interference selected from a group consisting of odd integers, <i>M>T<</i> is the transverse magnification, and <i>n</i> is the refractive index encountered by the reading light inside the pits. The invention also provides an improved optical reading system with the parameters satisfying the relationship of formula (II), wherein lambda is the wavelength of light to read the information recording medium, <i>m</i> is the order of interference selected from a group consisting of odd integers, <i>M>T<</i> is the transverse magnification, <i>n</i> is the refractive index encountered by the reading light inside the pits, and <i>d</i> is the depth of the pits. |
