Re: Star Hopping, green laser pointers

[Chuck Britton <britton@NCSSM.EDU>]

Just a curiosity question:

A few years ago the green diode laser pointers were actually an IR
laser followed by a frequency-doubling crystal. They blinked at a
steady fast rate - to let the doubling crystal cool?

Are these newer ones flickering or steady. Sweep it across a surface.
Is the line continuous or interrupted?


At 9:04 AM -0600 10/11/02, Larry Smith wrote concerning green laser
pointers http://www.skypointer.net/.:
> At 4:22 PM -0700 10/8/02, Stephen Murray wrote:
> > Prices have come down from the $300 that they used to go for, though
> > they're still much more expensive than the red pointers.  I got one
> > recently for about $130.
>
> The $300 model we got a couple of years ago is now $185, but the vendor (of
> course) claims they "are the highest quality green pointers on the market."
> http://www.skypointer.net/.
>
> Larry
>
> This posting is the position of the writer, not that of SUNY-BSC,
> NAU or the AAPT.


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Chuck Britton                                   Education is what is left when
britton@ncssm.edu                       you have forgotten everything
North Carolina School of Science & Math         you learned in school.
(919) 416-2762                                  Albert Einstein,        1936

This posting is the position of the writer, not that of SUNY-BSC, NAU or the AAPT.