You could use a polarizing lens over the headlamp, BUT you would also loose a
large fraction of the light therefrom. I've found the glare to be a nuisance as
well. Maybe one could construct a set of louvers that would semi-polarize the
light without causing a loss in transmission? You could jury rig some out of
cardboard (painted flat black) to refine the design, then use a more durable
material, like slats from plastic mini-blinds.
Prost,
Martin
Jackson, MS
Quoting BG Granier <shinerscoop_at_bellsouth.net>:
> Ther's a crappie light that is floted on a syrofoam ring that I've seen. Its
> a 12 volt headlight that is partially submerged. Probably will build up lots
> of heat if left on though.
>
>
> ----- Original Message -----
> From: "John Bongiovanni" <bongi_at_cox-internet.com>
> To: <nanfa_at_aquaria.net>
> Sent: Tuesday, March 16, 2004 11:33 AM
> Subject: Re: NANFA-- duckweed removal and headlamp questions
>
>
> > How about putting lamps under the water like a swimming pool?
> >
> >
> > >
> > > From: BR0630_at_aol.com
> > > Date: 2004/03/16 Tue AM 11:19:10 CST
> > > To: nanfa_at_aquaria.net
> > > Subject: Re: NANFA-- duckweed removal and headlamp questions
> > >
> > > I have a pair of questions for the list:
> > >
> > > First, is there some product out there to kill dried duckweed and/or
> duckweed
> > > seed that remains in the hair algae that's stuck to the sides of my
> outdoor
> > > tubs and driftwood? The tubs & driftwood have been outside, but empty
> over the
> > > winter, but I know just as soon as I fill it with water.
> > >
> > > Second, are there good headlamps out that would kind of have a polarized
> > > effect where said headlamp's beam would penetrate the water's surface
> without
> > > glare or reflection for night viewing?
> > >
> > > Thanks in advance for any advice.
> > >
> > > Bruce Scott
> > > Meridian, ID
> --
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/-----------------------------------------------------------------------------
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/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
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/ nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
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/ For more information about NANFA, visit our web page, http://www.nanfa.org