Contact: Please contact us via or through the phone numbers given below.

Operator of the siOPTICA web site:


Moritz-von-Rohr-Str. 1a

D-07745 Jena


Phone: +49(0)3641-6345901

Fax: +49(0)3641-6345905

Managing Director: Dr. Markus Klippstein

Company Register: Lower Court of Jena, Germany

Company Register Number: HRB 509115

VAT identification number as per §27a Value Added Tax Law (Umsatzsteuergesetz): DE289176924

Responsible for the contents of this web site as per § 55 Abs. 2 RStV: Dr. Markus Klippstein

Bank account:  Sparkasse Jena IBAN: DE22830530300018030670 BIC: HELADEF1JEN