摘要
采用KOH:H2O的湿法化学腐蚀Si{100}晶片获得了球面轮廓曲线十分好的微透镜,透镜直径可从几个微米到几个毫米,焦距和孔径之比f/D可以从2.5到10以上。文章给出了微透镜及列阵的实验测试结果和若干显微照片,对其设计与制造建立了半经验理论模型。最后,对球面的形成原理及异常焦斑形状作了讨论。
Micromirrors with good spherical profiles can be made on the Si{100} surface by wet chemical etching in KOH:H 2O solutions.The mirror diameters span the range from a few micrometers to several millimeters and the range of f/D's obtainable starts at about 2 5 and goes up to at least 10.Some experiment and microphotos on micromirrors array have given in the paper.A semiempirical model is developed to design the arrays.Finally some discussions on the spherical formation theory and the focal point images are given.
出处
《光学精密工程》
EI
CAS
CSCD
1998年第2期64-70,共7页
Optics and Precision Engineering
关键词
硅微透镜
微机械
微光学
短程透镜
Silicon micromirror,Micromaching,Microoptics,Geodesic lenses