Red Green | Projector Select

This page features Red Green. These items can be bought at some good prices online via this site.

What is the difference between laser red, green and blue?

I see that red is the cheapest, it costs a little green and blue is more expensive. Then, What is the difference?

You ask about the color or the device? about the color, the only difference in frequency. Red is a frequency less than green, and green lower than Blue. Approximately 390 THz Red, Green and Blue 540 THz 700 THz (Tera Hertz) About the device: They are all types of semiconductor LEDs (light emitting diode), working as a laser, (very inverted electron population), which requires more energy than common led to obtain the laser. And made of different materials, depending on the quantum level difference in order to obtain the appropriate wavelength for light. Wave length is related with the frequency and the speed of light. Approx. Red 750 nm, Green 550 nm, Blue 350 nm (nano meters) emission wavelength (or frequency) depends on the quantum difference between the orbits of electrons "in the diode 'union'. When the electrons fall from the upper to the lower level, a photon is emitted. The wavelength of the photons depends on the quantum level the difference. In order to "produce the quantum level difference" has to choose different materials to construct the junction of the diode. Red lasers are easy to build and are produced in large quantities to lower their prices. LASER green little harder ro to construct and which cost a little more. blue laser was sought for many years, finally get the right mix to build "blue union. It is more difficult to build, and there enoguht production yet, so the cost is higher. Additionally, each year the diode are built with more 'power' which is another challenge to build the union with adequate current capacity is sufficient. Current must flow through the junction in order to "elevate" the level of electrons.

Deals now on eBay
Sign up is fast, easy & FREE