GRINTECH – Your partner for innovative micro-optics solutions
We are GRINTECH – a medium-sized high-tech company based in Jena, the “City of Light”, with around 25 years of experience in innovation. Our technology is unique worldwide and revolutionizes the way light can be used in various applications: We develop GRIN gradient index micro-optics made of glass and produce high-precision miniaturized optical components and systems with unique properties based on these “gradient index lenses”.
Our dedicated team with decades of experience in physics, engineering, precision optics, chemistry and industrial mechanics is continuously working on new, individual solutions for the most demanding requirements in a wide variety of fields, such as sensor technology, fiber optics, biophotonics, medical imaging, telecommunications and laser diode beam shaping.
Strengths of the GRIN-technology

Micro
up to 250 µm
up to 125 µm if required

Simple
attachment
to flat surfaces

Precise
assembly
with other components

Sustainable &
biocompatible
without toxic materials

Any Questions?
Contact us!
Dr. Bernhard Messerschmidt & Anke Kräplin
Management
Telefon: +49 (3641) 55417-0
E-Mail: info@grintech.de
Events + News

Team GRINTECH is looking for a CNC Milling Machine Operator (m/f/d)
August 17, 2026 – New career opportunities at GRINTECH: Our current job posting is aimed at CNC milling machine operators (m/f/d) who would like to contribute their experience in high-precision micro-optics manufacturing.

GRINTECH is looking to expand its team
May 5, 2026 – We are welcoming new talents! GRINTECH is offering an internship or a bachelor’s thesis in the field of “Controlling & Finance.” If you’re interested in analyzing production costs, refining costing models, and improving financial processes, GRINTECH is the perfect place for you.

Exchange, innovation, and hot-off-the-press catalogs
February 4, 2026 – Photonics West 2026 in San Francisco is now behind us—and we can look back on an all-around successful week at the trade fair. Our San Francisco team thoroughly enjoyed the intensive exchange with customers, partners, and new contacts from the international photonics community.





