Re: Do super-red LEDs emit 'pleasing' light?
- From: "Clive Tobin" <clive@xxxxxxxxxxx>
- Date: 25 Feb 2006 15:47:57 -0800
Allan Herriman wrote:
On 23 Feb 2006 23:54:13 -0800, dagmargoodboat@xxxxxxxxx wrote:
Some white LEDs are blue with a fluorescent material in the package to
convert the blue light into an approximation of white. The
fluorescent material degrades with time.
On white or blue LEDs in an epoxy package, the UV causes the epoxy to
turn dark and yellow with age. The plastic cased ones are more immune
to this.
.
- References:
- Do super-red LEDs emit 'pleasing' light?
- From: Joerg
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Meindert Sprang
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Joerg
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Spehro Pefhany
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Joerg
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Fritz Schlunder
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Joerg
- Re: Do super-red LEDs emit 'pleasing' light?
- From: dagmargoodboat
- Re: Do super-red LEDs emit 'pleasing' light?
- From: Allan Herriman
- Do super-red LEDs emit 'pleasing' light?
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