Context: Machine vision systems often require bright and homogeneous illumination, so features of interest are easier to process. LEDs are often used for this purpose, and this is likely to remain one of their major uses until the price drops low enough to make signaling and illumination uses more widespread. Barcode scanners are the most common example of machine vision, and many low cost products use red LEDs instead of lasers. Optical computer mice are an example of LEDs in machine vision, as it is used to provide an even light source on the surface for the miniature camera within the mouse. LEDs constitute a nearly ideal light source for machine vision systems for several reasons:

Question: LEDs are often used for what type of systems?
Answer: Machine vision

Question: Why are LEDs preferred for machine vision systems?
Answer: so features of interest are easier to process

Question: What can help make LEDs more widely used?
Answer: price drops

Question: What is the most common example of a machine vision system?
Answer: Barcode scanners

Question: Where are some LEDs in machine vision systems found?
Answer: Optical computer mice

Question:  non-LEDs are often used for what type of systems?
Answer: Unanswerable

Question:  Why aren't LEDs preferred for machine vision systems?
Answer: Unanswerable

Question: What can't help make LEDs more widely used?
Answer: Unanswerable

Question:  What is the most uncommon example of a machine vision system?
Answer: Unanswerable

Question: Where are some LEDs in machine vision systems not found?
Answer: Unanswerable