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posted by
takyon
on Tuesday July 28 2015, @04:50AM
from the hackable-signage-in-direct-sunlight dept.
from the hackable-signage-in-direct-sunlight dept.
New Sydney road signs use low-power 'E-Ink' technology and can be remotely updated:
The NSW Government has tapped the same technology you use to read books on your Kindle to create low-energy street signs that can be remotely altered.
The electronic paper road signs, which have been installed across Sydney, are the result of a partnership between Roads and Maritime Services (RMS) and Slovenian technology firm Visionect.
[...] An RMS spokesperson told The Register that 15 of the new signs 'were successfully trialled in the management of traffic on George Street in the Sydney CBD and a second rollout has since been completed in the Moore Park area.'
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Sydney's World-First "E-Paper" Street Signs
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TOO BAD YOU CAN'T BUY a voodoo globe so that you could make the earth spin
real fast and freak everybody out.
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(Score: 3, Informative) by hankwang on Tuesday July 28 2015, @07:10AM
Reply to self: it seems that retroreflective sheeting is not a transparent film that you stick onto a painted surface to make it retroreflective. Rather, the film has its own color; either the traffic sign consists of different layers of sheeting cut to shape, transparent ink is printed on top, or black opaque lettering is applied on top.
Still, retroteflective e-paper could have a market, if you figure out how to do it. Self-illuminating displays are hard to get right, i.e. bright enough and with enough contrast under all ambient light conditions. I know roadside and above-road LED displays that are dazzlingly bright in the dark. My phone rarely gets the auto-brightness right either, despite a user-defined lux/brightness curve.
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