日韩成视频在线精品,尤物视频在线观看卡不卡,日韩美女午夜玩精品视频,a中文字幕在线不卡

Germanium (Ge) Plano convex Lenses are made from Germanium material. They present a curvecd interface and a planar interface. They have a positive focal length, which makes it ideal for collecting and focusing light for many imaging applications. They are for instance the microlenses situated on top of a wafer, and also encountered in macroscopic optical systems.

Specifications:
Material:-----------------------------------------------------------Germanium
Diameter Tolerance:----------------------------------------------+0.0/-0.15mm
Focal Length Tolerance (mm):----------------------------------+/-2%
Centration:---------------------------------------------------------<3 arc minutes
Clear Aperture:---------------------------------------------------->85%
Surface Figure:-----------------------------------------------------<λ/4@633nm
Surface Quality:-----------------------------------------------------60/40
Protected Bevel:---------------------------------------------------<0.25mmx45deg
Coating:--------------------------------------------------------------uncoated