LED and Photodiode holder

A project log for –°olor Identifier for visually impaired people

Color Identifier can identify the color of clothes (and other household), tell the color and what other colors is compartible with this one.

Sergei  V. BogdanovSergei V. Bogdanov 10/26/2021 at 12:110 Comments

LEDs emit red, green and blue light to the surface to investigate, and photodiode detects the scattered emission. We have two tasks: LEDs must don't irradiate photodiode, and as much as possible scattered by surface light must be collected by photodiode. 

We made some test holders to make a selection. We tested 5 types of holders and select the bes.

Fig. 1. Scetches of differend LED- Photodiode holders.

Fig. 2. 3d models of  LED-Photodilde holders.

Fig. 3 Slicer picture of LED-Photodilde holders.