CL1B power distribution
quozl at laptop.org
Tue Apr 28 19:19:15 EDT 2009
On Tue, Apr 28, 2009 at 10:15:47AM -0400, C. Scott Ananian wrote:
> I wonder if one could easily support running an LED backwards as an
> ambient light monitor in Gen 1.5 - it seems that automatically
> powering off the backlight in bright sunlight would lead to a lot of
> power savings for most young users.
I agree that an ambient light detector and automatic adjustment of
backlight would save power. It would happen transparently, magically.
But I don't think the LEDs are often specified in terms of their ambient
light detection properties.
Perhaps it would be better to use a photodiode, or light dependent
Then there's the spectrum of light being received.
Then there's reflection from the laptop display itself to consider.
I recall we also once had a discussion on whether the camera could be
used as an ambient light detector.
James Cameron mailto:quozl at us.netrek.org http://quozl.netrek.org/
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