Find any brands under $100 Chuck? --- Chuck Hards <chuckhards@yahoo.com> wrote:
While comparing brands, I've discovered that power rating is not in itself a foolproof indicator of brightness. I have seen some that are rated at 5mw, at very attractive prices -BUT- they have an intermittant, 50% duty cycle at a high enough frequency to be undetectable to the eye via persistance of vision- they flash off-and-on quickly, like the incandescent light bulbs in your house (yes, they really do!).
Other lasers, also rated at 5mw output, are rated for a continuous duty cycle- in other words, they do not flash off-and-on faster than the eye can see. It is said that the continuous duty lasers are obviously brighter, with a more easily seen beam.
My question is if anyone has had experience with the two side-by-side? If you're not sure what you have and are happy with it anyway, thats great but won't tell me what I would like to know.
There is more info on duty cycles at the Scopetronix Website:
Click on the "Green laser pointers" link.
Thanks!
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