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

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.

Countdown to California: Meet us at Bios Expo and Photonics West 2026
December 12, 2025 – We look forward to seeing you in San Francisco – from January 17 to 18 at Bios Expo (Booth 8662) and from January 20 to 22 January 2026 at Photonics West (Booth 3662). We will be presenting our latest solutions and innovations – feel free to make an appointment!

Technology meets exchange: GRINTECH at the W3+ Fair
September 2025 – GRINTECH will once again be represented at the W3+ Fair & Convention in Jena in 2025 – meet us on 24 and 25 September at booth C1b in hall 1 of the Sparkassen-Arena.





