<
I assumed that "white" LEDs were actually a combination of R,
G & B LEDs.
>
For special applications like digital projectors, they do use RGB and also mood
lighting where you can set color mix.
But the vast majority are phosphor based.
You can do really nice things using RGB though, for example it gives really
great color separation and high saturation, if you use it for photographic
lighting.
Tim
________________________________
From: Wayne Harridge <wayne.harridge@xxxxxxxxxxxxxxxxxxx>
To: 'Olympus Camera Discussion' <olympus@xxxxxxxxxxxxxxxxx>
Sent: Friday, December 19, 2014 3:18 AM
Subject: Re: [OM] Purple fringing
Interesting. I assumed that "white" LEDs were actually a combination of R,
G & B LEDs.
...Wayne
-----Original Message-----
From: olympus
[mailto:olympus-bounces+wayne.harridge=structuregraphs.com@xxxxxxxxxxxxxxxxx
] On Behalf Of Hughes
Sent: Friday, 19 December 2014 9:55 PM
To: Olympus Camera Discussion
Subject: [OM] Purple fringing
This also explains why Flare and Blue fringes from directly imaging LED
lamps is such a problem. White LEDS produce quite short wavelength blue
light ,that is then converted to green and red by phosphors,but there is
still a very large blue component,often larger than the Green and Red
,especially with High color temperature,high efficiency LEDs.
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