Red and Green Laser Pointer

Red and Green Laser Pointer
A laser pointer is a laser pen, shaped like a are designed to be portable and handheld.The laser pointer is used to project was initially a point or points from the beam, can be used to point out a project or object, the audience in the demo.And their increased proliferation and strength, application of laser pointer has grown to include the use of such as astronomy, architecture, a light show and entertainment just mentioned some.
A red laser is any laser emission wavelength and the red region of the spectrum of about 620 nm to 750 nm.The typical wavelength emitted red laser 635 nm (Ruby), 650 nm (light red / orange) and 670 nm.
Green laser is a laser emission wavelength long in the green spectral region from 495 nm to 570 nm.Green laser wavelength is typically 532 nm (jade).
The most obvious difference between green and red laser pointer is a beam of visibility.The human eye is most sensitive to long wavelengths around 555 nm (green / yellow) which makes green laser is more obvious than the red laser.Green laser can appear to be about 50 times the brightness of red laser.
The main difference between other red and green laser is their complex building.Simply a red laser is composed of a circuit board, a red laser diode and a focusing lens.Green laser on the other hand is more complicated than that, because there is no laser diode green, you can use.Instead of an infrared (808 nm) diode is the use of special crystal combined with a filter to produce green laser.