Applications
There are many applications for ULE, but by far the most common is for mirrors and lenses for telescopes in both space and terrestrial settings. one of the most well known examples of the use of ULE is in the Hubble telescope's mirror. Another good example of its application is in the Gemini telescope's mirror bank. this type of material is needed for this application because the mirrors on telescopes, especially the very large and precise ones, cannot bend or loose their shape even slightly. If this were to happen, the telescope would be out of focus and the mirror would have to be replaced. some other examples and uses of ULE are:
- Ultra-low expansion substrates for mirrors and other optics
- Length standards
- Lightweight honeycomb mirror mounts
- Astronomical telescopes
- Precision measurement technology
- Laser cavities
Another newer use for this material that is showing promise is in the semiconductor industry. this again because of the purity and extreme low expansion of ULE glass.
Read more about this topic: Ultra Low Expansion Glass