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World's Smallest Projector
SkinnyGuy writes "Mixed into all of PCMag's CES preview coverage is an interesting story about a projector that's no bigger than an iPod. An early version showed up at last year's CES, but some of the guts weren't inside the small body. Now they are. It uses lasers to project the image. Really fascinating, futuristic stuff."
There's another projector called the Explay Oio that looks smaller: http://www.mobilewhack.com/explay-oio-the-first-real-pocket-nano-projector-on-dispaly-at-sid-2007/
Last year a different company made news demonstrating a monochrome version of their pico laser projector (PVPro) last year. They used LCoS to generate diffraction patterns rather than using a MEM mirror. http://www.lightblueoptics.com/
TFA says $200 - $300. :)
Why not use an Etmopterus perryi, aka the dwarf lantern shark? Don't yer believe, the picture is of a real sized, mature shark. Right, I'm going to ready my cage to catch this brute.
(look ma, I can Google)
for shining a laser into the sky (albeit at a helicopter pilot)
no albeit about it, pointing a laser into the sky isn't a crime, pointing one at an aircraft(much less the pilot) is a felony.
So holding a laser light show into the sky is fine as long as you're not below a regular flight lane. If you're doing a high power laser light show, contacting the FAA might be a good idea.
Relatively high powered lasers are used for star gazing fairly frequently - it allows a director to point stuff out, as the laser is powerful enough to be seen via atmospheric interactions.
I don't read AC A human right
I dislike LED brake lights because they appear to flicker.
I see this most of all on Cadillacs, when the parking lights are on, but the brake lights are not - particularly if you turn your head while looking at the lights. The LEDs on Cadillacs apparently are dimmed by a PWM circuit that flashes the LEDs rapidly to simulate the lower brightness level. This is a totally inappropriate way of controlling the brightness of lights on a moving vehicle, because it makes for weird strobe-light effects in traffic, and it's actually more expensive and introduces more failure points than the alternative. It really makes Cadillacs look bad.
The aftermarket LED lights used on heavy trucks do not flicker unless there is a bad connection somewhere. They are designed using the simplest method of dimming for the parking light function - a simple pair of diodes to isolate the brake and parking light inputs, and a resistor in line with the parking light input.
Pretty much all LED third brake light (CHMSL) modules do not flicker at all as they generally have no dimming function and are either on or off. If you're seeing them flicker, you may be hallucinating.
I also see rainbows on 4x DLP projectors. Do I have superman eyes?
No, probably just a brain tumor.
Putting moderation advice in your