Spectra Group Ltd., Inc. was founded in 1991 by renowned US photochemist Dr. Douglas C. Neckers. The corporation was originally chartered to create 3D models from medical image data, as in CT or MRI scans, for surgical planning using stereolithography. Neckers’ laboratories at the Center for Photochemical Sciences, Bowling Green State University, were the first in the world to introduce this technology.



In 1999 Spectra Group used stereolithography to produce 3D models from CT scans of mummies collected in 1906 by founders of the Toledo Museum of Art. The models were used by a forensic specialist to create life-like looking busts of ancient Egyptians exhibited at the Museum.

Expanding beyond stereolithography in the field of photosciences and photopolymerization, in its over 20 years of existence Spectra Group went on to become one of the most successful startups to have come from technology transfer from an Ohio university over the last 2 decades. Its scientists have affiliation with the Center for Photochemical Sciences at Bowling Green State University.

Neckers continued consulting for Spectra Group before retiring from the University to become the company’s CEO in 2009.

A recent article on Neckers' contributions to stereolithography has been published here.


MILESTONES in Spectra Group history:


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