[SML] Really bright red LED light source

[Sean McCarthy]

Hi Steve!

I was JUST explaining to someone the Macbeth under-the-deck 6" fresnels and
mirror trick you used in....1995?

Sadly there's not really quite enough space under the deck for an LED leko
& mirror (mainly because of the platform framing).  That was my first
thought.

Currently setting up to audition Astera tubes (1/2M), and ColorForce2 12
(with yoke/trunnion removed).

On Thu, Apr 25, 2024 at 10:27 AM Steve Boone via Stagecraft <
stagecraft at theatrical.net> wrote:

> Hi Sean!
> I thought I had a great idea and was going to say LED semi-trailer brake
> lights would be 12v, very red, and bright enough to see in daylight, so
> several of them would probably look quite bright on stage.
> Seems like you could put a bunch of them in that space and get a really
> good result.  -Maybe even some up with an egg-crate or louvered accessory
> to limit the way off-angle light that maybe you don’t want?  BUT THEN I
> started thinking about “dimmable.”  I know there are pulse width modulation
> dimmer modules for 12v automotive circuits, but since they post date the
> invention of fire (yes, I am that old), I have no experience with them, and
> can’t tell you a thing about which ones are good and which ones will
> disappoint you.
>
> I’ve always been a fan of putting a 45 degree mirror under the opening and
> putting a kick-ass bright LED ellipsoidal under the stage somewhere, lying
> on its side pointed at the mirror for things like this.   For a long time I
> thought this was how they did the footlights for The Tonight Show Starring
> Jimmy Fallon, but I read an article in PLSN where Fred Bock said he used
> iWhites from Color Kinetics, which would be a lot more money, but would
> give you some color choice flexibility if the red is too pink or too orange
> or too purple…
>
> Just an idea…
> Steve Boone
>
> > Date: Wed, 24 Apr 2024 12:18:53 -0400
> > From: Sean McCarthy <seanrmccarthy at gmail.com>
> > To: Stagecraft <stagecraft at theatrical.net>
> > Subject: [SML] Really bright red LED light source
> > Message-ID:
> >       <CAPnxH6Fo3=A3jf6htqiMH02jF=
> N+cQz1Xkqb52ukzoLoxETbGQ at mail.gmail.com>
> > Content-Type: text/plain; charset="utf-8"
> >
> > Hi all,
> >
> > Spitball with me:  I need a low-profile, red only light source for an
> > effect.  It's a floor grating with red light shoot up.
> >
> > Limitations:  ~6"-8" total available height.  Must be LED.  Grating is
> ~24"
> > square.
> >
> > Prior (less successful) version of the effect used 4 Colorblast TRX's.
> >
> > Ideally 12-24v, so it can be run from some sort of PWM driver, or line
> > dimmable.
> >
> > What sort of ideas have you???
> >
> > Thank you very much!
> >
> > --Sean
>
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