Follow the links from the article to the website of the inventors.
http://www.cc.gatech.edu/~summetj/cre/
There's a sentence there which reads:
"By out-fitting a camera with a ring of IR-LEDs and an IR pass filter,
we are able to detect the retro-reflection caused by CCD imaging
chips."
So I suppose what they do is to detect CCD chips that reflect IR. That
should leave the bespectacled unscathed...:-)
Nor would this work against DSLRs, where the CCD is not detectable
before the mirror comes up and the shutter is opened. :-)
Jostein
----- Original Message -----
From: "mike wilson" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, September 19, 2005 3:34 PM
Subject: Re: Stop digital cameras from taking photos?
From: Mark Roberts <[EMAIL PROTECTED]>
Date: 2005/09/19 Mon PM 12:20:02 GMT
To: [email protected]
Subject: Stop digital cameras from taking photos?
Interesting article on C|NET:
http://news.com.com/Crave+privacy+New+tech+knocks+out+digital+cameras/2100-7337_3-5869832.html?tag=nefd.lede
Reading about the way this putative technology works is to wonder
how anyone wearing spectacles is going to be able to cope.
IIR(ead)C, the response is generated because of a reflection from a
lens. Therefore all lenses will extract a response. Spectacles,
all cameras, etc. Why pick on digital? Apart from for fun, of
course.
mike
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