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This is an incredibly cool technology, and the basic idea is pretty simple: You take a RGB LED, modulate the intensity of the red green and blue diode so that t
by mixmax 19y ago
This is an incredibly cool technology, and the basic idea is pretty simple: You take a RGB LED, modulate the intensity of the red green and blue diode so that the light output matches the scanlines of your projected image. Then you project it onto a mirror mounted on a piezo electric crystal which oscillates to match the scanlines. And voila - you have a projector.
The inhibiting factor has been that RGB LED's have been quite expensive but they are rapidly dropping in price. The blue ones are particularly pricey.
- mhb 19y agoThat sounds reasonable, but how many LEDs are they using? RGB and blue LEDs have been under $1 for quite a while.
- iamwil 19y agothey might be bigger ones, or better focused ones (I'm guessing). The ones you're thinking of are mostly used as indicators, so I'm guessing it doesn't matter where they shoot their light.
- mixmax 19y agoexactly - the brightness is what costs, and a LED for a projector needs to be pretty bright.