Heraeus has a complete range of different grades of quartz glass available for applications ranging from simple optical windows to high performance lenses for deep UV lithography.  The different grades are grouped into "families" in accordance with their basic characteristics. A chart of optical properties is shown below, along with links to a page with transmission curves and information on that family of glasses.

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Note:  To reduce file size, many of the graphs have been reproduced over the originals.