September 2022

S M T W T F S
    123
45678910
11121314151617
181920 21222324
2526 27282930 

Style Credit

Expand Cut Tags

No cut tags
Wednesday, April 6th, 2011 08:32 pm
Last December I made a lightbox for [livejournal.com profile] ladydrakaina, in the form of an artificial window. We finally mounted the thing this weekend, so I finally made a post about the project.

Thursday, April 7th, 2011 04:48 am (UTC)
That's really cool, and an absolutely beautiful execution.
At some point when the price of LED's drops a bit it'd be nice to do one that's time-aware and ramps up the blue really hard in the morning, then moves to largely red in the evening, since that seems to do way better for balancing seasonal affective disorder treatment against producing insomnia. We're building a bunch of color-controlled light systems right now and fooling around with that, but sheesh are LED's expensive.
Thursday, April 7th, 2011 04:57 am (UTC)
Yeah, I originally wanted to do a ramp-up like that, but decided it just wasn't worth the effort. I love the color changing idea, though.
Friday, April 8th, 2011 01:14 am (UTC)
Definitely one of those "this will make 1% of its operational regime WAY MORE AWESOME" tradeoffs. I built a set of LED lights for the downstairs bathroom and despite the driver having a dim pin that's just begging to be attached to audio, I was all "... and how often is anyone actually going to *want* that?" Never often, that's how.

That piece of stained glass is a score and a half. That's on the list of things to learn to make.

We have a light that's 80% white, 10% red, balance blue and green, that not only color-compensates for external illumination color changes, it also self-compensates for aging LED's. We'd like to double the LED acceptable lifetime by, instead of graceful degradation, actively accounting for degradation and taking care of it. (But it's really hard to convince anyone that that's actually worth paying for, when we're talking about 50,000 hours.)