Twyman-Green Interferometers from 4D Technology
A Twyman-Green interferometer can be described as a laser interferometer configuration that is us……...

In the early 1990’s, thanks to more than 10 years of intensive scientific research done by the VTT Technical Research Centre, the Specim Founders designed the first professional hyperspectral spectrographs and imagers. These first commercially available spectrographs were developed in close collaboration with NASA to meet the requirements of the most advanced applications in remote sensing.
To this day, in order to reach the high-ends of precision, durability and functionality, SPECIM has been in the forefront with new technological solutions applied to hyperspectral imaging. World class research, business, and defense organizations are relying on Specim quality when performance and reliability matters.
Today, SPECIM’s in-depth hyperspectral knowledge and extensive expertise in optical engineering are unmatched. More than 3 500 instruments and spectrographs delivered and in daily use, SPECIM continues as the technological leader in the realm of hyperspectral imaging.
Why Specim Products Are So Good
SPECIM follows unique values and design patterns for all its products. Based on these fundamental principles, all SPECIM imaging spectrographs are crafted for:
performance: spot size equals camera pixel size and dispersion efficiency (> 50%)
high quality image: aberrations such as smile and keystone are not detectable – they remain smaller than 20% of the camera pixel size
low stray-light (< 0,5%)
uniform performance over the entire imaging area, both spatial and spectral axis
polarization independent imaging
Unlike most commercially available imaging spectrographs, all SPECIM spectrographs fulfill and exceed the crucial criteria above. This results in superior performance in your application.
A Twyman-Green interferometer can be described as a laser interferometer configuration that is us……...
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