laser pointer P900 color
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| Item Name | laser pointer P900 color |
| Price | Rp. 94.500 |
| Description | A laser pointer or laser pen is a small portable device with a power source (usually a battery) and a laser emitting a very narrow coherent
low-powered beam of visible light, intended to be used to highlight
something of interest by illuminating it with a small bright spot of
colored light. Power is restricted in most jurisdictions not to exceed
5 mW. The small width of the beam and low power of typical laser pointers make the beam itself invisible in a reasonably clean atmosphere, only showing a point of light when striking an opaque surface. Some higher-powered laser pointers project a visible beam via scattering from dust particles or water droplets along the beam path. Higher-power and higher-frequency green or blue lasers may produce a beam visible even in clean air because of Rayleigh scattering from air molecules, especially when viewed in moderately-to-dimly lit conditions. The intensity of such scattering increases when these beams are viewed from angles near the beam axis. Such pointers, particularly in the green-light output range, are used as astronomical-object pointers for teaching purposes. |
| Available Stock | tersedia |
| Misc | ORDER NOW |
Categories:
pointer
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