Demonstrate light trace and the transmission of rays through a combination of optical elements with this Laser Ray Box with five independent diode laser modules. Five clearly visible parallel line light traces can be seen when they are collimated by cylindrical lenses. Because it is magnetized, this ray box can be easily used in conjunction with the materials in the CENCO Ray Optics Demonstration Set. Includes mechanical shade, power supply, and battery box. Specifications: wavelength: 535nm; ray distance: 18mm; size: 112 x 63 x 31mm. 300 mA. 3VDC.
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