Finger-tip size, ultra-compact spectrometer head
integrating MEMS and image sensor technologies
The C12666MA is an ultra-compact (Finger-tip size) spectrometer head developed based on our MEMS and image sensor
technologies. The adoption of a newly designed optical system has achieved a remarkably small size, less than half the vol-
ume of the previous mini-spectrometer MS series (C10988MA-01). In addition, the employment of hermetic packaging has
improved humidity resistance.
This product is suitable for integration into a variety of devices, such as integration into printers and hand-held color
monitoring devices that require color management. It is also suitable for applications that collaborate with portable
devices, such as smartphones and tablets.
Finger-tip size: 20.1 × 12.5 × 10.1 mm
Weight: 5 g
Spectral response range: 340 to 780 nm
Spectral resolution: 15 nm max.
Hermetic package: High reliability against humidity
Installation into mobile measurement equipment
Wavelength conversion factor*1 is listed on final inspection sheet
Color monitoring for printers and printing machines
Testers for lights and LEDs
Color adjustment of various large size displays
Water quality control monitors and other environment
Measuring instruments that use portable devices
such as smartphones and tablets
*1: A conversion factor for converting the image sensor pixel number into a wavelength. A calculation factor for converting the A/D
converted count into the input light level is not provided.
Spectral response range
340 to 780
Spectral resolution (FWHM)
Wavelength temperature dependence
-0.5 to +0.5
-0.1 to +0.1
Spectral stray light*3
*2: Measured under constant light input conditions
*3: Spectral stray light = 10 × log (Tl/Th)
Th: count measured when light at a certain wavelength is input
Tl: count measured at a wavelength 40 nm longer or shorter than the input light wavelength
- 30 - mW
- 150 *4 - Ω
*4: 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.