[AZ-Observing] Re: Green Laser Pointer
- From: "Thom/TFW" <mthomj@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Fri, 5 May 2006 10:32:42 -0700
I still swear by the Howie Gladder SkyPointers. My first 5mw is still going
strong after almost 5 years and my 2nd a 12mw is about 1.5 years old. My
rule of thumb is if you can see the milky way the 5mw is enough, if you
can't the 12mw works. If you call and talk to Howie he'll send one that he
has opened up higher, it just adds cost.
Thom
----- Original Message -----
From: "George Barber" <gbarber@xxxxxxxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Friday, May 05, 2006 8:01 AM
Subject: [AZ-Observing] Green Laser Pointer
> My laser pointer finally bit the dust after a little more than a year of
> use. I purchased it at wickedlasers.com. It was a really nice 55mW unit.
>
> Another friend of mine had his 20 mW laser pointer die after 6 months or
> so.
>
> I've been shopping on the internet, and ran across a green laser made by a
> company called Laserglow. Their unit is a class IIIb, which makes it
legal
> for anyone to own, as it has safety interlocks built in.
>
> The unit is larger than a laser pen, and designed to efficiently dissipate
> the heat built up by the I/R pumping diode inside the laser. Thus, they
> claim, the unit can maintain its power output over time. Their graphs
> demonstate this. The graphs also show that the high-power laser pens only
> output their advertised power levels for a short time, quickly diminishing
> the output level.
>
> The lasers made by Laserglow are more expensive than the high-power laser
> pens. However, if their quality is that much better, you would save money
> in the long run by purchasing a unit that will last probably the rest of
> your life.
>
> So, I have two questions:
> First, does anyone have any experience with a Laserglow unit?
>
> Second, how much power is really adequate for your average star party?
> Sure, the idea of a 100 mW laser is cool! But would it be overpowering at
> such events as the Grand Canyon Star party? Such an instrument might be
so
> bright as to cast green light and interfere with night vision. What do
you
> think the ideal green laser power level is? I need a laser that can do
> star parties in areas ranging from downtown lights nearby (like at a
> school) to a dark area like the GCSP.
>
> If I bought their Herculese model (OK, too much to spend...) I might be
> able to take out those pesky orbiting satellites, ha ha.
>
> Thanks for your inputs,
>
> George
>
>
>
>
>
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