发明公开
EP0418930A3 Recording medium and reproducing method therefor 失效
记录介质及其再现方法

Recording medium and reproducing method therefor
摘要:
recording medium comprises a recording layer containing a material whose optical rotatory power is changed, a birefringent layer for changing a state of the polarization of a beam, and a reflecting layer for reflecting the beam transmitted through the recording layer and the birefringent layer to reintroduce the beam into the birefringent layer and the recording layer. A method of reproducing information from this recording medium applies a polarized light beam to the recording medium and detects change of the polarized state of the polarized light beam reflected from the recording medium, thereby reading the information recorded in the recording layer. According to the inventive recording medium and reproducing method, the information can be reproduced through optical rotatory power.
公开/授权文献
信息查询
0/0