The Prince EXO3 White Lite is a great choice for teens with medium ... The rest of the dimensions—beam width, length and head size—are the same in both models. Both also have the EXO3 ...

A white light beam is directed through a microscope using beam splitters after being collimated by a variable aperture. Different objective lenses, both high and low, are used to achieve different ...

White light-emitting diodes (LEDs) have tremendous potential for energy-efficient illumination. However, achieving white light emission with a 'colour temperature' that is not too blue is a ...

projectors usually have an LED or laser light source that directs a white light beam toward a spinning color wheel. The color wheel separates the white light into three primary colors, red ...