Hamamatsu unveils C10988MA spectrometer
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Hamamatsu Photonics product story
Edited by the Engineeringtalk editorial team
Apr 29, 2009
Hamamatsu Photonics has introduced the C10988MA ultra-compact spectrometer, built using MOEMS technology.
The C10988MA has been developed for use in portable and handheld devices where a standard mini-spectrometer would be too large and would consume too much power.
It is a thumb-sized device weighing 9g and measuring 27.6mm x 13mm x 16.8mm.
Hamamatsu combined its MEMS and image sensor technologies to achieve the small size.
The C10988MA uses an aberration-corrected concave grating with a very short focal length and a blazed grating profile for high diffraction efficiency.
The grating is replicated onto the top of a convex glass lens using nano-print technology.
Directly opposite the grating is a dedicated CMOS silicon image sensor with an on-chip slit.
This 75um x 750um slit is formed into the CMOS chip using MEMS technology.
The distance between the sensor and the slit is 1mm, while the distance from the grating to the image sensor is 8.5mm.
Through the use of these techniques, the C10988MA can offer a spectral resolution of 12nm in the wavelength range of 340nm to 750nm, making it suitable for a range of visible-light applications requiring a miniaturised spectrometer head, according to the company.
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