My mom called yesterday and told about this exciting "new" projection technology in her clock. "It projects the time on our bedroom door!" Naturally, I told her about this recent Engadget article by Dan Wu:
Cambridge University researchers have created a more efficient holographic laser projector, capable of generating 200 holographs a second (which would make for very smooth video), which could see potential use in handheld devices, notebooks or PDAs. The image could be focused at any range and operates by “steering” light, instead of blocking and wasting light energy the same way current projector lamps do. Save your Star Wars references, though, as this is 2D video only, friend.
Recall that theater movies, TV and HDTV pretty much all run at 24fps (frames-per-second) where as the average video game runs at 38+ fps. This baby runs at a blistering 200fps. Of course the real question is how clear the resulting picture is... for this we look at the ppi/dpi (pixels or dots per inch). Printers routinely run at 600 or 1200ppi on average, LCDs at 72ppi (or in the case of my powerbook < 72ppi due to its fuzzy display and low resolution = 1280x854, definitely not UXGA).
Funny aside: Mom also had a question (because she's about to order DSL) about this N.I.C / etheridge cartridge thing... lol.
posted @ Wednesday, December 29, 2004 8:01 AM