| 摘要 |
PURPOSE:To allow high-density recording without requiring tracking control and focus control by recording information with intensity modulated light in a memory, which is constituted by dispersing liquid crystals having a specific m. p., into a high-polymer material, in the state of applying the prescribed electric field intensity thereof. CONSTITUTION:A recording layer RML is constituted by laminating the high- polymer/liquid crystal memory film 10, which is constituted by dispersing the liquid crystals having the m. p. lower than the m. p. of the high-polymer material into this material and is so formed as to maintain the orientation state of the liquid crystals even after the removal of the impressed electric fields, as well as transparent electrodes 9, 12 and a photoconductive layer member 11. The light modulated in intensity by the recording information is made incident through a lens array FEL on the recording layer in the state of impressing the prescribed electric fields between the transparent electrodes 9 and 12, by which the information is recorded. The writing at a high density and high speed is executed in this way without executing the tracking control. Erasing is executed by making the light stronger than the light at the time of recording incident in the state of the non-electric fields between the transparent electrodes. |
