New Spectroradiometer For Better and Faster Production of LEDs


Instrument System introduces a spectroradiometer with a CMOS sensor and in-built temperature stabilizer for efficient mass production in much less time

Due to product life cycles becoming shorter all the time, production lines are witnessing a need to become faster and complex more than ever, while still being user-friendly. This is presenting manufacturing companies with several new challenges.

Now, Instrument Systems, a manufacturer of light measurement technology in the field of quality inspection for mass-produced LEDs, has introduced a new spectroradiometer called CAS 125 that has a spectral range of 200 to 1100 nm.

Very low measurement time


The CAS 125 spectroradiometer, which is based on the currently available CAS 140D, is equipped with a CMOS sensor that is linked to an electronic readout circuit. This connection enables low measurement times of 0.01 milliseconds. The electronic readout circuit facilitates time-optimized control of the spectroradiometer by parameterizing successive measurements in Recipe mode on the CAS 125. This helps in eliminating the time-consuming step of communicating with the PC for initializing each and every stage of the measurement process.

Optimal long-term stability

The CAS 125 has a built-in temperature stabilizer. This results in a stable flow of charge and no random current generation (also known as dark current behaviour). This helps the CAS 125 to ensure optimal long-term stability – even in environments where temperatures are quite inconsistent.

A further highlight of the device is its ability to parameterize the flash trigger. This helps users synchronize the spectrometer with other system components, for example by triggering a photodiode measurement.

Rich features that boost productivity

With Recipe mode and temperature stabilization – two of the CAS 125’s USPs, a significant improvement in automated processes is achieved, thus boosting productivity

This also gives the CAS 125 a level of optical performance, both in terms of stray light suppression and optical throughput, that is comparable with that of CAS 140D.



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