Providing Consistent LED Measurements Within the Automotive Industry

The CL-500A Illuminance Spectrophotometer’s compact and lightweight design makes it easy to carry or hold in your hand for portable measurements. It can be used for the evaluation of high-class, next-generation lamps such as LED and EL illumination. In addition, the spectral irradiance waveform and peak wavelength can also be checked directly on the unit.

The CL-500A is equipped with standard tripod sockets on both the top and bottom surface, so it can easily be mounted on a jig facing either downward or upwards. It also includes convenient, easy-to-use software. This software will read measurement data from the CL-500A directly into Excel. This allows for further processing of data to be performed using the included pre-set templates with graphs or various Excel functions. In addition to quantifying the color variations, the software is also equipped with a function to enable easy binning. Another function of the software the ability to display the MacAdam ADCM levels and CIE charts.

The instrument also has an informative color-rendering index display (CRI). The color-rendering index expresses the comparison between the light source being tested and a standard illuminant. The maximum value is 100, with the value decreasing as the color-rendering difference increases. This indicates how far the appearance, under the test light source, is from the natural color under sunlight. Scotopic illuminance and the S/P ratio of scotopic illuminance can be measured with the instrument alone and with the included software. Other measurement functions include continuous measurement mode, average of multiple measurements, delayed measurement and the display of data at a specific wavelength.

The motility of the CL-500A Illuminance Spectrophotometer allows for the simple evaluation of color coordinates and intensity of automotive lighting. It is the perfect measuring instrument for interior and exterior vehicle lighting, portable measurements of CRI and spectral irradiance waveform measurements. The accuracy of this instrument limits the margin of error for manufacturers in the automotive industry.

The lighting system of an automobile requires extreme uniformity and precision, not only for the manufacturer, but for the safety of the driver as well. It is imperative that brightness standards and LED measurements remain consistent from vehicle to vehicle. The CL-500A provides a complete solution for those looking to achieve that goal. It can measure the light emitted from illuminated buttons and switches, interior lighting, displays, gauges, headlamps, tail lamps and more. During the production and quality control process, measurements are taken and compared to the standard values set by the manufacturer. Data can then be uploaded to the CL-s10w software, where it can be evaluated and verified.

To learn how to implement a light management program within your operations, please contact us at (888) 473-2656 or

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