Review: Wicked Lasers Sonar II Burner Blu-ray Laser Pointer - Trusted Reviews
Trusted Reviews have published a review of the Wicked Lasers Sonar II Burner Blu-ray Laser Pointer. 'As the name rather unsubtly suggests, the Sonar II is the second generation of Wicked Lasers' Blu-ray sporting pointer. Whereas the original used a diode that was pulled straight out of a Blu-ray player, WL has managed to find a source of diodes for the Sonar II. Clearly, not having to throw away a butchered Blu-ray player for every Sonar II made can only be a Good Thing.
The Blu-ray diode inside the Sonar II produces a 405nm beam packing 60mW of power, which might not sound like much but when you consider that the entire beam is converged on a circle of around 2.5cm2 at a distance of 10m it sounds more impressive. It is partly because of the extremely short wavelength that the laser can be so powerful. A quick GCSE (O-Level to the less youthful among you) recap reminds us that higher frequency (shorter wavelength) equals more power. On the subject of power, Wicked Lasers strongly advises using lithium, rather than alkaline batteries as they offer significantly better battery life for the same power output.'
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