https://www.hamamatsu.com/us/en/product/optical-sensors/infrared-detector/two-color-detector/K3413-05.html
Two-color detector K3413-05 | Hamamatsu Photonics
The K3413-05 is a hybrid detector containing an infrared-transmitting Si photodiode mounted over an InGaAs PIN photodiode, along the same optical axis. This...
two colordetectorhamamatsuphotonics
https://www.instructables.com/Automatic-color-detector-using-LDR/
Automatic Color Detector Using LDR - Instructables
Automatic Color Detector Using LDR : This is a guide for building a automatic color detector using LDR (light dependent resistor). This is small in size, and...
color detectorautomaticusingldrinstructables
https://www.tonematch.pro/
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