HarzOptics is not responsible for the contents or reliability of any linked websites and does not necessarily endorse the views expressed within them. The listing of a link shall not be taken as endorsement of any kind. We cannot guarantee that these links will work all of the time and we have no control over the availability of linked pages.

Please let us know about existing external links which you believe are inappropriate and about specific additional external links which you believe ought to be included.

If you have any questions, please feel free to contact:

Prof. Dr. Ulrich H.P. Fischer-Hirchert