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Worldwide: Review of laser "stars" projector; question about aircraft interference

An August 22 2014 review on “the Gadgeteer” website describes a holographic laser “star” projector. This projects colored dots in an area roughly 25’ x 25’, to give the illusion of stars indoors on a wall, or of lights in trees and bushes outdoors. The cost is between $80 and $130 depending on the seller.

The reviewer, Bill Kuch, says the green-only version contains a Class IIIa laser that uses diffractive holographic optics to create the beams. According to the instruction pamphlet, “Each individual laser beam is less than 5 mW, which is about the same as an average laser pointer.”

He then talks about testing the unit indoors and outdoors. Kuch said that after aiming at the tree canopy around his cabin in the woods, his neighbors came out, commented positively, and asked where they could purchase one.

In the final paragraph, he says when he pointed the projector up into the trees, “that begs the question: could it interfere with aircraft flying overhead?”

Review of the Viatek Night Stars Landscape Lighting from the Gadgeteer.
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US: Review of 1-watt blue laser with US-required safety features

A USD $159 1-watt blue laser, apparently having all required FDA safety features, was reviewed by a gadget blog on May 4 2014.

The SKY Technologies Blue Handheld includes a keyswitch, 3-5 second emission delay, remote interlock, and a shutter to cut off the beam, as required by FDA regulations enforced by the agency’s Center for Devices and Radiological Health (CDRH). Under current (May 2014) law, the laser appears to be legal for sale and use in the U.S., assuming the manufacturer also submitted a proper Laser Product Report and has filled all other FDA/CDRH import and paperwork obligations.*

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