Mini-spectrometers
MS series
C10988MA-01 C11708MA
Ultra-compact mini-spectrometer integrating
MEMS and image sensor technologies
The MS series are thumb-sized (27.6 × 16.8 × 13 mm) spectrometer heads developed for installation into mobile mea-
surement equipment by merging our MEMS and image sensor technologies.
The MS series uses a CMOS image sensor integrated with a light receiving slit. The internal optical system is comprised of
a convex lens on which a grating is formed by nanoimprint.
The result is a remarkably small size less than one-third the volume of the RC series mini-spectrometers that have already
been marketed.
Features
Applications
Thumb size: 27.6 × 16.8 × 13 mm
Weight: 9 g
C10988MA-01
Color monitoring for printers and printing machines
Installation into large size display (Color control device)
Spectral response range: 340 to 750 nm (C10988MA-01)
640 to 1050 nm (C11708MA)
C11708MA
Spectral resolution: 14 nm (C10988MA-01)
20 nm (C11708MA)
Fruit suger content measurement / cereal taste test
Component analysis
Installation into mobile measurement equipment
Wavelength conversion factor*1 is listed on final in-
spection sheet.
*1: A conversion factor for converting the image sensor pixel number into a wavelength is recorded in the module. A calculation factor
for converting the A/D converted count into the input light intensity is not provided.
Optical characteristics
Parameter
Spectral response range
C10988MA-01
340 to 750
C11708MA
640 to 1050
Unit
nm
Spectral resolution
14 max.
20 max.
nm
(FWHM)*2
Wavelength reproducibility*3
Wavelength temperature dependence
Spectral stray light*2 *4
-0.5 to +0.5
-0.05 to +0.05
-25 max.
nm
nm/°C
dB
*2: Depends on the slit opening. Values were measured with the slit listed in the table “ Structure / Absolute maximum ratings”.
*3: Measured under constant light input conditions
*4: When monochromatic light of the following wavelengths is input, spectral stray light is defined as the ratio of the count measured at
the input wavelength, to the count measured in a region of the input wavelength ±40 nm.
C10988MA-01: 550 nm, C11708MA: 850 nm
Electrical characteristics
Parameter
Min.
4.75
-
0.25
-
Typ.
5
30
Max.
5.25
-
200
-
Unit
V
mW
kHz
Ω
Supply voltage
Power consumption
Video rate
Output impedance
-
150*5
*5: An increase in the current consumption at the video output terminal also increases the chip temperature and so causes the dark
current to rise. To avoid this, connect a buffer amplifier for impedance conversion to the video output terminal so that the current
flow is minimized. As the buffer amplifier, use a JFET or CMOS input operational amplifier of optical input impedance.
1
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