Service

Customer Consultation

Whether individual advice on new or used equipment, an appointment for a practice visit, questions about our products or help with malfunctions – our qualified service team is here for you.

Consulting for ophthalmologists and opticians
Block Optic

Management

Jörg Grawunder

Jörg Grawunder

Management / Head of Sales
grawunder@block-optic.com
Hans-Christian Block

Hans-Christian Block

Management
block@block-optic.com
Advice

Field Sales

Cecile Dufrenne

Cecile Dufrenne

Executive Assistant / Field Sales
dufrenne@block-optic.com+49 (0) 157 518 522 85
Oliver Grieger

Oliver Grieger

Master Optician / Field Sales
grieger@block-optic.com+49 (0) 178 180 059 3
Service

Technical Service

Michael Tiller

Mechanics / Electronics
tiller@block-optic.com+49 (0) 163 243 322 0

Sven Owczarzak

Mechanics / Electronics
owczarzak@block-optic.com+49 (0) 163 243 322 2
Administration

Inside Sales

Viktor Zeller

Clerk / Inside Sales
zeller@block-optic.com

Astrid Grawunder

Accounting / Administration / Inside Sales
info@block-optic.com

Andreas Gensmann

Sales – Consulting / Inside Sales
gensmann@block-optic.com
Production

Velen

Ulrich Busskamp

Head of Production Velen
busskamp@block-optic.de+49 (0) 2863 475 4

Peter Schulze-Sievert

Head of Production Velen
schulze.sievert@block-optic.de+49 (0) 2863 923 689 1