Practical themes : Rectilinear propagation of light, Demonstration lasers & light sources
Case: metallic with magnetic sole; dim: 135 x 100 x 27 mm.
Parallel beams: 5 laser diodes 650 nm, 1 mW. Spacing between each 20 mm beam (80 mm wide beam).
Ignition mode: controlled by 3-position switch (1/3/5 beams).
Power supply: AC adapter supplied with on / off switch.
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