Dual Colour Laser

Description

Display two different colour diffraction patterns
simultaneously.
The Lascells semiconductor laser contains two
independently controlled laser diodes, one at the standard
650nm red and a second at 532nm green. Both lasers
may be simultaneously passed through a double slit slide
and both diffraction patterns may be displayed one above
the other for an immediate comparison.
The unit is equipped with internal 1 MHz modulation which
when used in conjunction with the laser receiver and an
oscilloscope allows the speed of light to be determined in
the laboratory. In addition, the facility to modulate the laser
from an external source is provided allowing audio to be
sent to the receiver from a smartphone or mp3 player.
The apparatus is switched using a removable key which
prevents unauthorised use and is supplied with a 9V power
supply and full instructions.
SP4-1709