发明授权
US5326677A Optical retrieval apparatus using a tellurium (IV) leuco dye 失效
使用碲(IV)无色染料的光学取出装置

Optical retrieval apparatus using a tellurium (IV) leuco dye
摘要:
There is disclosed an optical retrieval apparatus which uses a laser for illuminating an optical element. A sensor responds to modulated light from the optical element to produce electrical signals. The optical element has a substrate and on the surface of the substrate, a dye containing recording layer and a light reflecting layer. The improvement is that the dye is a leuco dye.
公开/授权文献
信息查询
0/0