GRINTECH is one of the leading manufacturers of gradient index (GRIN) micro-optic lenses and lens systems based on more than 20-years of experience. 

GRINTECH delivers medical imaging and biophotonic technology, optical metrology and sensor technology to growing markets. 

GRIN-lenses are miniaturized lenses having extraordinary good optical performance and flat optical surfaces. 

The optical power of GRIN-lenses is achieved by a refractive index (GRadient INdex) profile fabricated by a non-toxic silver and lithium ion exchange process in glass. Our unique rod and cylindrical micro lenses have typical dimensions from 200 µm to 2 mm. 

With diffraction-limited numerical apertures up to 0.45. The flat optical surfaces enable an easy assembly to micro-optical lens systems tailored to your specific requirements. 

GRINTECH GmbH was founded in 1999 as a spin-off of the Fraunhofer Institute for Applied Optics and Precision Engineering in Jena, Germany. 

We at GRINTECH support the GRIN technology with our long-standing technical expertise and reliable customer service.


Brain Imaging – one of the most enabling applications of GRINTECH micro-optics
Endomicroscopy using GRINTECH lenses and assemblies allows an in-vivo imaging access to deep tissue regions in the brain, especially in non-humans.

It helps to understand disease formation and progression on a cellular level of the tissue.

To support our customers even better by providing appropriate biological techniques and protocols, GRINTECH has created a partnership with Inscopix Inc. in Palo Alto, California, one of the leading technology providers in neuroscience microscopic imaging.

Beginning on December 1st, 2015 Inscopix will distribute exclusively our products in the field of non-confocal, single photon epi-fluorescence and two-photon imaging for neuroscience applications in non-humans (see also our declaration).