Reflected-ultraviolet imaging is being enabled by advances in ultraviolet LEDs, laser sources, CCD cameras, and lenses.
Reflected-ultraviolet imaging is being enabled by advances in ultraviolet LEDs, laser sources, CCD cameras, and lenses.
Industrial machine vision has traditionally centered on visible-light imaging cameras and visible-light illumination. The simplest machine-vision applications are replacements for human workers, who see in the portion of the electromagnetic spectrum in wavelengths between 400 and 750 nm. A human-replacement machine-vision system might consist of a monochrome video camera combined with a software algorithm to detect the presence or absence of the cap on a tube of toothpaste and the degree to which it has been tightened. For a system like this, the lighting can be provided by simple tungsten lamps.
