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Spectrometry with consumer-quality CMOS cameras.

Alexander Scheeline1

  • 1SpectroClick Inc., 60 Hazelwood Dr., Champaign, IL, 61820, USA, info@spectroclick.com.

Methods in Molecular Biology (Clifton, N.J.)
|January 29, 2015
PubMed
Summary

Consumer cameras like CMOS sensors offer potential for portable scientific instruments, but challenges hinder widespread adoption. This review explores overcoming these limitations or using alternative methods for better instrument development.

Area of Science:

  • Spectrometry
  • Optical Engineering
  • Consumer Electronics

Background:

  • Modern spectrometric instruments commonly employ diode arrays, charge-coupled devices, or CMOS cameras for detection.
  • The integration of cameras from cellular telephones and tablet computers into scientific instruments is desirable for portability and point-of-use applications.
  • Despite this potential, a mass market for such devices has not yet emerged.

Purpose of the Study:

  • To discuss the challenges associated with using megapixel CMOS cameras for scientific measurements.
  • To review promising avenues for the development of new scientific instruments utilizing these cameras.
  • To consider inexpensive alternatives to integrated smartphone cameras and evaluate long-term development strategies.

Main Methods:

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  • Discussion of inherent limitations of CMOS cameras in scientific measurement contexts.
  • Review of emerging technologies and approaches for enhancing CMOS camera performance in instrumentation.
  • Exploration of alternative hardware solutions that bypass the constraints of built-in mobile device cameras.

    • Main Results:

    • Significant technical hurdles exist in adapting megapixel CMOS cameras for precise scientific measurements.
    • Several promising research and development directions are identified for future instrument design.
    • Inexpensive external sensor options provide viable alternatives to direct integration of mobile device cameras.

    Conclusions:

    • Overcoming the inherent constraints of CMOS cameras is a key challenge for developing portable spectrometric instruments.
    • Alternative approaches, including external sensors, may offer more practical solutions in the near term.
    • The future of portable scientific instrumentation may involve either adapting consumer camera technology or utilizing specialized, cost-effective alternatives.