| Author |
Message |
Watson A.Name - \"Watt Su
Guest
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 Posted:
Thu Mar 17, 2005 10:24 pm Post subject:
This Sounds Interesting - Zinc Selenide White LEDs |
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From Don's LED FAQ pages. Sounds interesting, but as with any new
cutting edge technology, the cost is probably very high. It was a year
ago that was posted, perhaps in the near future they will become
available. It took awhile for the Luxeon Stars to become available to
the hoi polloi.
"UPDATE 3/13/2004 - zinc selenide white LEDs have a typical voltage drop
of 2.65 volts at 20 mA. They can be made in aqua-blue. White ones have
chips that emit aqua-blue light out their tops and orangish light out
their sides, and the light has to be mixed inside the LED. Roithner
Laser is selling a few zinc selenide models. Craig Johnson has an online
review of these in his Page on LEDs available from Roithner Laser."
--
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###Got a Question about ELECTRONICS? Check HERE First:###
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goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
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Michael
Guest
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| Posted:
Fri Mar 18, 2005 12:53 am Post subject:
Re: This Sounds Interesting - Zinc Selenide White LEDs |
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"Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:
| Quote: |
From Don's LED FAQ pages. Sounds interesting, but as with any new
cutting edge technology, the cost is probably very high. It was a year
ago that was posted, perhaps in the near future they will become
available. It took awhile for the Luxeon Stars to become available to
the hoi polloi.
"UPDATE 3/13/2004 - zinc selenide white LEDs have a typical voltage drop
of 2.65 volts at 20 mA. They can be made in aqua-blue. White ones have
chips that emit aqua-blue light out their tops and orangish light out
their sides, and the light has to be mixed inside the LED. Roithner
Laser is selling a few zinc selenide models. Craig Johnson has an online
review of these in his Page on LEDs available from Roithner Laser."
|
Yeah. Certainly 2.65v is nicer than 3.0-3.3v
About the Luxeon Star, I looked up the poop sheet on the Star V last night and
was shocked at the lifetime rating: 500 hrs (ISTR). The cost/hr is still too
danged high for this putter-around-er. |
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Watson A.Name - \"Watt Su
Guest
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| Posted:
Fri Mar 18, 2005 6:10 am Post subject:
Re: This Sounds Interesting - Zinc Selenide White LEDs |
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"Michael" <NoSpam@att.net> wrote in message
news:4239D225.17526E82@att.net...
| Quote: | "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:
From Don's LED FAQ pages. Sounds interesting, but as with any new
cutting edge technology, the cost is probably very high. It was a
year
ago that was posted, perhaps in the near future they will become
available. It took awhile for the Luxeon Stars to become available
to
the hoi polloi.
"UPDATE 3/13/2004 - zinc selenide white LEDs have a typical voltage
drop
of 2.65 volts at 20 mA. They can be made in aqua-blue. White ones
have
chips that emit aqua-blue light out their tops and orangish light
out
their sides, and the light has to be mixed inside the LED. Roithner
Laser is selling a few zinc selenide models. Craig Johnson has an
online
review of these in his Page on LEDs available from Roithner Laser."
Yeah. Certainly 2.65v is nicer than 3.0-3.3v
About the Luxeon Star, I looked up the poop sheet on the Star V last
night and
was shocked at the lifetime rating: 500 hrs (ISTR). The cost/hr is
still too
danged high for this putter-around-er.
|
Yeah, true. So you run them at half power and they last a lot longer.
Like 2 or 3W of light ain't too shabby, now, is it? Compared to the 1W
LS, that's a whole lot brighter.
I got my TerraLux side emitter last week and installed in a Min Maglite
I have. It's considerably brighter than either the Opalec Newbeam or
the MagmaLED side emitter which is also focusable. I like it. But it
ain;t cheap - $28 including shipping.
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