This invention provides an infrared diffractivelens capable of focusing infrared rays within a wide range of wavelength band effectively.
本发明提供一种可高效地对宽波长范围的红外线进行聚光的红外线衍射透镜。
3
By this way we can design high diffraction efficiency, as well as lager numerical aperture diffractivelens under current machine fabrication condition.