Fingertip size, ultra-compact spectrometer head integrating MEMS and image sensor technologies


The C12666MA is an ultra-compact (fingertip 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 volume 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.

- Fingertip 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 is listed on test result sheet.

Measurement example

Color measurement

A demonstration module with a built-in the mini-spectrometer Micro series was used to measure the spectrum of color sample. Because the Micro series is small, it can be mounted on various color measuring devices such as color adjustment of color printers and dimming of LED lighting.

Application examples


Besides a CMOS image sensor chip integrated with an optical slit by etching technology, the mini-spectrometer micro series employs a reflective concave  grating formed by nanoimprint. In addition, the glass used in the light path of the previous C10988MA-01 is not used in the mini-spectrometer micro series, making it extremely compact.

Size comparison with previous product


Incident light side (back of chip)


Spectral response range 340 to 780 nm
Spectral resolution (FWHM) (typ.) 12 nm
Spectral resolution (FWHM) (max.) 15 nm
Cooling Non-cooled
Built-in sensor CMOS linear image sensor with a slit
Number of total pixels 256 pixels
Measurement condition Typ. Ta=25 ℃, unless otherwise noted

Dimensional outline (unit: mm)

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