A Glass Spring

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Wikipedia will tell you that springs are usually made out of spring steel. While that is usually correct, that does not necessarily have to be the case. For some applications you may want to consider a spring made out of glass.

We have often talked about our fused silica glass flexures. Their superior material qualities - almost perfect elastic behavior and near-zero coefficient of thermal expansion - deliver superior performances for many demanding applications. Furthermore, we can integrate optical waveguides in these flexures (try to do that in a metal flexure!)

A fused silica glass spring designed to operate with a tension load. The spring stretches as the load is applied to it. In this model, the cross section is square (100 microns x 100 microns)A fused silica glass spring designed to operate with a tension load. The spring stretches as the load is applied to it. In this model, the cross section is square (100 microns x 100 microns)We can fabricate flexures or flexure arrays with a wide range of shapes, including spring-like geometries, as illustrated here.