发明授权
US07054070B2 Gradient-index lens and composite optical element utilizing the same 失效
梯度折射率透镜和利用其的复合光学元件

Gradient-index lens and composite optical element utilizing the same
摘要:
A gradient-index lens is structured by a multilayer film that includes therein a plurality of layers each of which has different refractive index and layer thickness from the other.
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