One clearly visible blue (450 nm) line light trace can be seen when it is collimated by cylindrical lenses. It effectively demonstrates the transmission of ray through a combination of optical elements.
Blue LLB is the updated version of Laser Line Box emitting the ray of a blue color (wavelength 450 nm). In principle, very similar device to Blue Laser Ray Box, but emits one blue laser beam, because it contains one independent laser module. The beam is stretched cylindrical lens - clearly visible bar light source. It is taped with magnetized foil, allowing intuitive attachment to a magnetic board or use in conjunction with sheets and models from Ray Optics Demonstration Set. It also effectively demonstrates the transmission of ray through a combination of optical elements. Via attaching multiple Line Boxes, multi-beam source can be created. Set includes also battery box (2x1,5V, AA size) and connecting cable for multiple Line Boxes.
Laser type: YVO4
Wavelength: 450 nm
Output Power / laser class: Pmax < 1 mW / 2
Dimensions: 100 x 25 x 20 mm
Power Supply requirements: 3V DC / 200 mA