FrinGOe announces a cheap Fourier Transform spectrometer of consumer applications. The optical part of the spectrometer is a passive add-on for iPhone or Raspberry Pi camera. The company's whitepaper explains how it works:
Regular FTIR spectrometer
Mach-Zehnder FTIR spectrometer with moving mirrors
Passive array of Mach Zehnder interferometers with path difference fixed at different values.
"FrinGOe uses innovative crystal technology to create a low cost 2D array of Mach Zehnder Interferometers and patented optical configuration to map the array onto the camera sensor. This allows an all-passive and compact optical add-on (as small as 4mm by 4mm by 2mm) that can be mounted onto any imaging platforms such as a mobile phone camera, Raspberry Pi camera or other OEM devices." One of the prototypes of the FT spectrometer has a spectral resolution of ~1 nm @ 400nm wavelength.
FrinGOe on the back of iPhone 5s is switchable between spectroscopic and imaging modes
In June, the company plans to launch FrinGOe at the Laser World of Photonics (Munich) exhibition and at the same time start an Indiegogo campaign to kick-start the mass production efforts. FrinGOe's Youtube video shows the spectrometer operation:
FrinGOe Unveils Consumer FT Spectrometer
Reviewed by MCH
on
May 31, 2015
Rating: 5
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