发明授权
US4997747A Method for the formation of a diffraction grating 失效
用于形成衍射光栅的方法

Method for the formation of a diffraction grating
摘要:
A method for the formation of a diffraction grating on a substrate using a holographic technique and an etching technique, wherein the periodicity of the pattern of the diffraction grating can be changed at will by a change of the light-path length of one of the two light fluxes from a holographic exposing system.
公开/授权文献
信息查询
0/0