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Re: [PSUBS-MAILIST] LED Lighting Options



Hello Jim

Thanks Jim, but I've moved on. :) 

>From what the guys doing it say about needing a heat sink; I think potting them in epoxy would be a really bad idea.

Maybe an acrylic lens and mineral oil in an aluminum housing?

Anyone ever leave LED's exposed? 

How deep do we think the ultra-bright LEDS could survive?  500?  1000?

--Doug J 


-----Original Message-----
From: Jim Kocourek <kocpnt@tds.net>
To: personal_submersibles@psubs.org
Sent: Thu, 8 Jan 2009 9:58 am
Subject: Re: [PSUBS-MAILIST] LED Lighting Options

Hi Doug,
 
Good idea, but remember ALL epoxies yellow with UV light and heat accelerates this process. You would need to make sure that the epoxy boes not get into the intended light path or you will have rapidly declining performance.
 
Just my two cents.
 
Best Regards,
 
Jim K
----- Original Message -----
From: djackson99@aol.com
To: personal_submersibles@psubs.org
Sent: Wednesday, January 07, 2009 6:38 PM
Subject: R e: [PSUBS-MAILIST] LED Lighting Options

Or just pot them in clear epoxy. --Doug J


-----Original Message-----
From: Brian Cox <ojaivalleybeefarm@dslextreme.com>
To: personal_submersibles@psubs.org
Sent: Wed, 7 Jan 2009 5:49 pm
Subject: RE: [PSUBS-MAILIST] LED Lighting Options

You can buy the individual leds and solder them up into big arrays.  Then flood with mineral oil and use a good acrylic lens.
 
Brian
-----Original Message-----
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org]On Behalf Of Brent Hartwig
Sent: Tuesday, January 06, 2009 9:47 PM
To: PSUBSorg
Subject: [PSUBS-MAILIST] LED Lighting=2 0 Options

Do you want to be able to leave your lights on when your out of the water and not smell the wonderful small of melting acrylic?  Do you want to save more battery power for your thrusters, and windshield wipers. If so here is a 6,000 meter depth rated option.  That depth should cover most the subs in are group. ;)'
 

"Virtually zero maintenance with 50,000 hour LED lifespan
» Over five times more efficient than comparable halogen lamps
» Supper rugged, highly vibration and shock resistant
» Thermal monitoring allows operation in air or water
» White, Blue and Green LEDs available
» 6,000 meter depth rated "


http://www.deepsea.com/light.html#18LEDMulti


=2 0
http://www.deepsea.com/pdf_spec/lml4018spec.pdf
 
Oh and by the way, Deepsea Power and Light 20are sponsers of the Deepsea Voyager Project, so it would be nice to give them some business.


Regards,

Szybowski