Konica Minolta Sensing Americas Light trends and Technology Newsletter
Color Rendering Index   Konica Minolta Service and Support
Color Rendering Index Explained   Are you getting the right Service and Support?
Color Rendering Index or CRI is defined as the quantitative measure of the ability of a light source to reproduce the colors of various objects faithfully in comparison to an ideal or natural light source. Light sources with high CRI are desirable in color critical applications, such as photography, cinematography, and retail lighting environments. A light source’s CRI rating describes how well it renders colors “naturally” compared to a reference ideal light source. CRI numbers are arrived by measuring the difference between two light sources; the reference light, and the light in question. They are measured in terms of how well they render the eight color samples (R1-R8) and averaged. The resulting average Ra is the CRI number. Want additional information? Email our experts.

Every Konica Minolta instrument is hand-assembled at our manufacturing facility and comes with a one-year warranty. It’s important to keep these instruments under warranty to ensure peak performance, provide certification to national standards, and eliminate unexpected costs. This ensures that they are operating at peak accuracy. Annual calibration and certification of your instrument to a National Standard such as NIST, JCSS and NPL assures that your instrument is traceable to standards that are certified by quality labs. Your instrument is calibrated and certified using a master instrument so that you are assured that year-in-and-year-out your Konica Minolta equipment is staying at peak performance.

CA-310 for Speed Production   Light and Light Source Color Measurement Webinar
Using the CA-310 for Speed Production   Webinar Recap: Light and Light Source Color Measurement
The CA-310 Color Analyzer is a high accuracy instrument used to measure the brightness and color of flat panel displays (FPD). The CA-310 was optimized to measure new generation displays using LEDs for backlights. LEDs are preferred because they are highly efficient and use less energy. The CA-310 employs three high grade sensors and filters for the highest accuracy possible. It measures extremely low luminances, down to 0.005 cd/m² and at speeds as fast as twenty times per second. Communication protocols are available which allow for seamless integration into a production line. Flexible connection interface is also available (RS232 or USB).


Wow! We had an amazing turnout for our recent webinar. In case you missed it or just want to re-visit the information, here are some of the subjects that we talked about:

  • Radiometry and Photometry
  • Colorimetry
  • Color Temperature
  • Light Measurement Instruments
  • Colorimeters vs. Spectroradiometers
  • Calibration and Recertification

Click the link below to view the webinar or download and print the slides for your reference.