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	<title>Comments on: Infrared LEDs make you invisible to CCTV&#160;cameras</title>
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	<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html</link>
	<description>Brain candy for Happy Mutants</description>
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		<title>By: Mowatt_m</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-749068</link>
		<dc:creator>Mowatt_m</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-749068</guid>
		<description>This guy sure is having fun! I suspect my neighbor (X- Army guy) is using a laser and/or IR light device to disrupt my security surveillance system.  Can you confirm if this is indeed laser or  IR and if it is harmful?   I have young kids and am concerned over the effects of these devices.  Would night time infrared glasses help to see the light? 
 I was thinking on using a IR camera with just the cord attached (150ft) and try to go outside and use the camera to trace to the source of the light.

The camera I am using is Chinese made and listed as:
â€¢	24 infra-red LEDs see in the dark up to 65ft 
â€¢	Clear resolution 480 TV Lines video display 
â€¢	Powerful Sony CCD color image sensor chip 
 
 
http://www.youtube.com/watch?v=RATykqPUVbs
http://www.youtube.com/watch?v=2jAiVArXvq8
http://www.youtube.com/watch?v=XJnBNYTSeP4
http://www.youtube.com/watch?v=mwPI67_UMqc
http://www.youtube.com/watch?v=Oq9SNCVZKsg</description>
		<content:encoded><![CDATA[<p>This guy sure is having fun! I suspect my neighbor (X- Army guy) is using a laser and/or IR light device to disrupt my security surveillance system.  Can you confirm if this is indeed laser or  IR and if it is harmful?   I have young kids and am concerned over the effects of these devices.  Would night time infrared glasses help to see the light?<br />
 I was thinking on using a IR camera with just the cord attached (150ft) and try to go outside and use the camera to trace to the source of the light.</p>
<p>The camera I am using is Chinese made and listed as:<br />
â€¢	24 infra-red LEDs see in the dark up to 65ft<br />
â€¢	Clear resolution 480 TV Lines video display<br />
â€¢	Powerful Sony CCD color image sensor chip </p>
<p><a href="http://www.youtube.com/watch?v=RATykqPUVbs" rel="nofollow">http://www.youtube.com/watch?v=RATykqPUVbs</a><br />
<a href="http://www.youtube.com/watch?v=2jAiVArXvq8" rel="nofollow">http://www.youtube.com/watch?v=2jAiVArXvq8</a><br />
<a href="http://www.youtube.com/watch?v=XJnBNYTSeP4" rel="nofollow">http://www.youtube.com/watch?v=XJnBNYTSeP4</a><br />
<a href="http://www.youtube.com/watch?v=mwPI67_UMqc" rel="nofollow">http://www.youtube.com/watch?v=mwPI67_UMqc</a><br />
<a href="http://www.youtube.com/watch?v=Oq9SNCVZKsg" rel="nofollow">http://www.youtube.com/watch?v=Oq9SNCVZKsg</a></p>
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		<title>By: DVR Dave</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-827405</link>
		<dc:creator>DVR Dave</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-827405</guid>
		<description>I was aware of this in older cameras, but I loved this article and all its responses. But I must ask, why is everyone trying to go unnoticed?</description>
		<content:encoded><![CDATA[<p>I was aware of this in older cameras, but I loved this article and all its responses. But I must ask, why is everyone trying to go unnoticed?</p>
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		<title>By: Takuan</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129551</link>
		<dc:creator>Takuan</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129551</guid>
		<description>in countries where the boot of sharia law is firmly pressed on the collective neck,  a man found wearing a burkha in public is imprisoned and tortured, possibly killed.

In non-sharia countries, there is usually no law forbidding non-muslims from wearing burkhas too.  This is an avenue I intend to use and keep open if survelliance becomes too oppressive in public places.</description>
		<content:encoded><![CDATA[<p>in countries where the boot of sharia law is firmly pressed on the collective neck,  a man found wearing a burkha in public is imprisoned and tortured, possibly killed.</p>
<p>In non-sharia countries, there is usually no law forbidding non-muslims from wearing burkhas too.  This is an avenue I intend to use and keep open if survelliance becomes too oppressive in public places.</p>
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	<item>
		<title>By: Anonymous</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-931863</link>
		<dc:creator>Anonymous</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-931863</guid>
		<description>Ok I was thinking about this for some time. TO USE IT AGAINST SPEED CAMS!!!! Led&#039;s around number plate surrond. Cant be seen by patrol car behind but has an effect on Mobile cams and speed trap cams.</description>
		<content:encoded><![CDATA[<p>Ok I was thinking about this for some time. TO USE IT AGAINST SPEED CAMS!!!! Led&#8217;s around number plate surrond. Cant be seen by patrol car behind but has an effect on Mobile cams and speed trap cams.</p>
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		<title>By: Bennessy</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-130841</link>
		<dc:creator>Bennessy</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-130841</guid>
		<description>Oooh! Imagine, CCCTV defeating throwies!</description>
		<content:encoded><![CDATA[<p>Oooh! Imagine, CCCTV defeating throwies!</p>
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		<title>By: nex</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129306</link>
		<dc:creator>nex</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129306</guid>
		<description>I just came back to this post because I was looking something up, and I noticed this gem:
&lt;blockquote&gt;I know our Burle (commercial-grade) parking lot camera gets a blank spot with repeaters in it like the example image&lt;/blockquote&gt;
The &#039;repeaters&#039; are called lens flare.
&lt;blockquote&gt;when there&#039;s too much IR. I doubt an IR LED would be bright enough, though. It&#039;s usually a result of a direct reflection of sunlight off a car window.&lt;/blockquote&gt;
Ooh, yeah, if you filtered out the IR light, &lt;strong&gt;surely&lt;/strong&gt; you&#039;d get a perfectly resolved mirror image of the sun; looking at the sun with a camera only produces a bright spot because there&#039;s too much IR! Thanks for explaining that! So, children, next time parts of a photograph are overexposed due to reflections from the sun, just screw on an IR filter and everything will be fine ... it&#039;s not like the sun is actually, you know, bright as fuck or anything.</description>
		<content:encoded><![CDATA[<p>I just came back to this post because I was looking something up, and I noticed this gem:</p>
<blockquote><p>I know our Burle (commercial-grade) parking lot camera gets a blank spot with repeaters in it like the example image</p></blockquote>
<p>The &#8216;repeaters&#8217; are called lens flare.</p>
<blockquote><p>when there&#8217;s too much IR. I doubt an IR LED would be bright enough, though. It&#8217;s usually a result of a direct reflection of sunlight off a car window.</p></blockquote>
<p>Ooh, yeah, if you filtered out the IR light, <strong>surely</strong> you&#8217;d get a perfectly resolved mirror image of the sun; looking at the sun with a camera only produces a bright spot because there&#8217;s too much IR! Thanks for explaining that! So, children, next time parts of a photograph are overexposed due to reflections from the sun, just screw on an IR filter and everything will be fine &#8230; it&#8217;s not like the sun is actually, you know, bright as fuck or anything.</p>
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		<title>By: Bennessy</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-130843</link>
		<dc:creator>Bennessy</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-130843</guid>
		<description>Well, according to #51, looks like it&#039;s back to Guy Fawkes masks.</description>
		<content:encoded><![CDATA[<p>Well, according to #51, looks like it&#8217;s back to Guy Fawkes masks.</p>
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		<title>By: dasbin</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128801</link>
		<dc:creator>dasbin</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128801</guid>
		<description>This device is not for protection from normal visible-light CCTV cameras, most of which have infrared filters installed, but only for infrared cameras, which I think are relatively rare.</description>
		<content:encoded><![CDATA[<p>This device is not for protection from normal visible-light CCTV cameras, most of which have infrared filters installed, but only for infrared cameras, which I think are relatively rare.</p>
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	<item>
		<title>By: Takuan</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-130849</link>
		<dc:creator>Takuan</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-130849</guid>
		<description>so, a few of these in my hat?
http://www.worldstartech.com/products-ldm_uhl_series</description>
		<content:encoded><![CDATA[<p>so, a few of these in my hat?<br />
<a href="http://www.worldstartech.com/products-ldm_uhl_series" rel="nofollow">http://www.worldstartech.com/products-ldm_uhl_series</a></p>
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		<title>By: Takuan</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-130852</link>
		<dc:creator>Takuan</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-130852</guid>
		<description>
this in my pocket

http://www.flyonthewall.uk.com/spy-camera-jammer.htm</description>
		<content:encoded><![CDATA[<p>this in my pocket</p>
<p><a href="http://www.flyonthewall.uk.com/spy-camera-jammer.htm" rel="nofollow">http://www.flyonthewall.uk.com/spy-camera-jammer.htm</a></p>
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		<title>By: theclar</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129574</link>
		<dc:creator>theclar</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129574</guid>
		<description>Reading a few comments that suggest IR can mess with digital cameras I wonder if something similar could be used by the famous to mess with the paparazzi.</description>
		<content:encoded><![CDATA[<p>Reading a few comments that suggest IR can mess with digital cameras I wonder if something similar could be used by the famous to mess with the paparazzi.</p>
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		<title>By: Cory Doctorow</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128808</link>
		<dc:creator>Cory Doctorow</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128808</guid>
		<description>My understanding is that many CCTVs have some sensitivity into the IR in order to resolve detail in poor light conditions. The CCD in these cameras is reputed to fail when exposed to high intensity IR light sources.</description>
		<content:encoded><![CDATA[<p>My understanding is that many CCTVs have some sensitivity into the IR in order to resolve detail in poor light conditions. The CCD in these cameras is reputed to fail when exposed to high intensity IR light sources.</p>
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		<title>By: Takuan</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129578</link>
		<dc:creator>Takuan</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129578</guid>
		<description>gonna build me an IR laser and fry them cameras</description>
		<content:encoded><![CDATA[<p>gonna build me an IR laser and fry them cameras</p>
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		<title>By: Jeff</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129326</link>
		<dc:creator>Jeff</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129326</guid>
		<description>Geez, and to think I do my hair nice each day just to look nice for the CCT cams!

I military terms this is old technology.</description>
		<content:encoded><![CDATA[<p>Geez, and to think I do my hair nice each day just to look nice for the CCT cams!</p>
<p>I military terms this is old technology.</p>
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		<title>By: Impenetrable</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-226097</link>
		<dc:creator>Impenetrable</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-226097</guid>
		<description>Takuan, #56 and #59....that&#039;s fine IF the camera you think you&#039;re jamming is 1)wireless 2)operates at 2.4Ghz.

The systems we install use a roving frequency. The receiver senses a camera&#039;s signal at setup at a particular signal strength and S/N ratio. If the receiver gets a variance from the norm, the entire system -- cameras, receivers, all switch freqs immediately. It is how the system maintains itself from &#039;toys&#039; like that you carry in your pocket, as well as interfering sources like wireless routers, wireless pool temperature systems, wireless weather systems, etc. etc. And not all our systems are 2.4Ghz so maybe you&#039;ll want to consider buying that toy of yours in 5.8Ghz, 0.9Ghz and more.

Gadget freaks ought to know that advanced systems are conceived and built by advanced people who&#039;ve already considered and built past the gadget freaks and hackers. Really. By the time you&#039;ve aimed your little LED source at the camera and think you&#039;ve swamped the detector, you&#039;re already on film, disk, or tape for enough frames to get you in trouble. We&#039;ve never installed a single IR camera at a site either. They&#039;re inexpensive enough to place many....a lot more than you&#039;ve got your jammer toys for. Stop wasting your time.</description>
		<content:encoded><![CDATA[<p>Takuan, #56 and #59&#8230;.that&#8217;s fine IF the camera you think you&#8217;re jamming is 1)wireless 2)operates at 2.4Ghz.</p>
<p>The systems we install use a roving frequency. The receiver senses a camera&#8217;s signal at setup at a particular signal strength and S/N ratio. If the receiver gets a variance from the norm, the entire system &#8212; cameras, receivers, all switch freqs immediately. It is how the system maintains itself from &#8216;toys&#8217; like that you carry in your pocket, as well as interfering sources like wireless routers, wireless pool temperature systems, wireless weather systems, etc. etc. And not all our systems are 2.4Ghz so maybe you&#8217;ll want to consider buying that toy of yours in 5.8Ghz, 0.9Ghz and more.</p>
<p>Gadget freaks ought to know that advanced systems are conceived and built by advanced people who&#8217;ve already considered and built past the gadget freaks and hackers. Really. By the time you&#8217;ve aimed your little LED source at the camera and think you&#8217;ve swamped the detector, you&#8217;re already on film, disk, or tape for enough frames to get you in trouble. We&#8217;ve never installed a single IR camera at a site either. They&#8217;re inexpensive enough to place many&#8230;.a lot more than you&#8217;ve got your jammer toys for. Stop wasting your time.</p>
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		<title>By: nex</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129329</link>
		<dc:creator>nex</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129329</guid>
		<description>&lt;blockquote&gt;For those who don&#039;t speak German, &quot;Ueberwachenden&quot; is literally &quot;hyper-attentive&quot;, the German idiom for a smothering micro-managing personality.&lt;/blockquote&gt;
No, it doesn&#039;t mean that at all, and this idiom you speak of doesn&#039;t exist. It is possible to read the connotation of Ã¼ber=hyper and wachend=attentive into the word, and you might get this subtlety across by making the work bold, italic, larger, and red, with a hyphen in the middle, but ordinarily &#039;Ãœberwachende&#039; just means &#039;surveillers&#039; and there is absolutely no connection to micro-management either way, no matter how much you try to force it.

Of course it&#039;s right that (former) citizens of East Germany would assign an inherently negative meaning to this otherwise completely neutral term, but it&#039;s nowhere near &#039;Big Brother&#039; and it isn&#039;t really a euphemism. I&#039;ll try to explain this with an analogy: If strawberries were deadly traps to you because you are allergic, the term &#039;strawberry&#039; wouldn&#039;t become a euphemism just because of that (even though others connect it with pleasant connotations). </description>
		<content:encoded><![CDATA[<blockquote><p>For those who don&#8217;t speak German, &#8220;Ueberwachenden&#8221; is literally &#8220;hyper-attentive&#8221;, the German idiom for a smothering micro-managing personality.</p></blockquote>
<p>No, it doesn&#8217;t mean that at all, and this idiom you speak of doesn&#8217;t exist. It is possible to read the connotation of Ã¼ber=hyper and wachend=attentive into the word, and you might get this subtlety across by making the work bold, italic, larger, and red, with a hyphen in the middle, but ordinarily &#8216;Ãœberwachende&#8217; just means &#8216;surveillers&#8217; and there is absolutely no connection to micro-management either way, no matter how much you try to force it.</p>
<p>Of course it&#8217;s right that (former) citizens of East Germany would assign an inherently negative meaning to this otherwise completely neutral term, but it&#8217;s nowhere near &#8216;Big Brother&#8217; and it isn&#8217;t really a euphemism. I&#8217;ll try to explain this with an analogy: If strawberries were deadly traps to you because you are allergic, the term &#8216;strawberry&#8217; wouldn&#8217;t become a euphemism just because of that (even though others connect it with pleasant connotations). </p>
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		<title>By: turkeymonkey</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-171826</link>
		<dc:creator>turkeymonkey</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-171826</guid>
		<description>for all the people saying this won&#039;t work, how do you know?  have you tried it?  most security cameras are OLD.  I&#039;ve played with IR leds, they will blot out many, many cameras.  but, as said, it works best in low light conditions.  so a bank that is well lit, like most, might not work so well.  but you never know what works until you try it yourself.  most people just read it on the internet and say, &quot;this guys says it won&#039;t work, good enough for me!&quot;.
until you play, you&#039;ll never know...</description>
		<content:encoded><![CDATA[<p>for all the people saying this won&#8217;t work, how do you know?  have you tried it?  most security cameras are OLD.  I&#8217;ve played with IR leds, they will blot out many, many cameras.  but, as said, it works best in low light conditions.  so a bank that is well lit, like most, might not work so well.  but you never know what works until you try it yourself.  most people just read it on the internet and say, &#8220;this guys says it won&#8217;t work, good enough for me!&#8221;.<br />
until you play, you&#8217;ll never know&#8230;</p>
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		<title>By: Gilbert Wham</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129076</link>
		<dc:creator>Gilbert Wham</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129076</guid>
		<description>@#23: I just figure I should swap &#039;em out when I can&#039;t change channel anymore. Am I doing it wrong?</description>
		<content:encoded><![CDATA[<p>@#23: I just figure I should swap &#8216;em out when I can&#8217;t change channel anymore. Am I doing it wrong?</p>
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		<title>By: dculberson</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128825</link>
		<dc:creator>dculberson</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128825</guid>
		<description>&quot;absurd accumulation of technology&quot;... I think I&#039;ve been there.  I &lt;i&gt;know&lt;/i&gt; a couple of my friends are there.

The CCD in most cameras is IR sensitive.  I know our Burle (commercial-grade) parking lot camera gets a blank spot with repeaters in it like the example image when there&#039;s too much IR.  I doubt an IR LED would be bright enough, though.  It&#039;s usually a result of a direct reflection of sunlight off a car window.</description>
		<content:encoded><![CDATA[<p>&#8220;absurd accumulation of technology&#8221;&#8230; I think I&#8217;ve been there.  I <i>know</i> a couple of my friends are there.</p>
<p>The CCD in most cameras is IR sensitive.  I know our Burle (commercial-grade) parking lot camera gets a blank spot with repeaters in it like the example image when there&#8217;s too much IR.  I doubt an IR LED would be bright enough, though.  It&#8217;s usually a result of a direct reflection of sunlight off a car window.</p>
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		<title>By: Adam Keck</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129083</link>
		<dc:creator>Adam Keck</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129083</guid>
		<description>This was the method by which the robbers blocked the bank&#039;s cameras in Spike Lee&#039;s &quot;Inside Man.&quot;  I did not understand that scene, until I saw the effect while playing with a webcam at work.

-Adam</description>
		<content:encoded><![CDATA[<p>This was the method by which the robbers blocked the bank&#8217;s cameras in Spike Lee&#8217;s &#8220;Inside Man.&#8221;  I did not understand that scene, until I saw the effect while playing with a webcam at work.</p>
<p>-Adam</p>
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		<title>By: CitrusFreak12</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128829</link>
		<dc:creator>CitrusFreak12</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128829</guid>
		<description>I was wondering why the quoted text was a bunch of borderline nonsensical gobbledygook. Then I saw that the linked page goes through translate.google.com. </description>
		<content:encoded><![CDATA[<p>I was wondering why the quoted text was a bunch of borderline nonsensical gobbledygook. Then I saw that the linked page goes through translate.google.com. </p>
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	</item>
	<item>
		<title>By: arkizzle</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128830</link>
		<dc:creator>arkizzle</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128830</guid>
		<description>it&#039;d be interesting to mount this on a baseball cap, maybe an LED under the peak to wash out the face.. and one above, on the front flat bit, to definitely max out the IR CCD on the camera.</description>
		<content:encoded><![CDATA[<p>it&#8217;d be interesting to mount this on a baseball cap, maybe an LED under the peak to wash out the face.. and one above, on the front flat bit, to definitely max out the IR CCD on the camera.</p>
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	</item>
	<item>
		<title>By: arkizzle</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128834</link>
		<dc:creator>arkizzle</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128834</guid>
		<description>..although if you used an under-powered LED, you might end up just clearly illuminating your face for the cam.. :(</description>
		<content:encoded><![CDATA[<p>..although if you used an under-powered LED, you might end up just clearly illuminating your face for the cam.. :(</p>
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	<item>
		<title>By: Thomas J. Brown</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128835</link>
		<dc:creator>Thomas J. Brown</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128835</guid>
		<description>This is the same basic idea I had about 10 years ago, but didn&#039;t have the necessary knowledge or resources to attempt (being in high school at the time). It&#039;s something I&#039;ve always wanted to play with, and this is a really nice proof of concept.</description>
		<content:encoded><![CDATA[<p>This is the same basic idea I had about 10 years ago, but didn&#8217;t have the necessary knowledge or resources to attempt (being in high school at the time). It&#8217;s something I&#8217;ve always wanted to play with, and this is a really nice proof of concept.</p>
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	</item>
	<item>
		<title>By: Elysianartist</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128837</link>
		<dc:creator>Elysianartist</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128837</guid>
		<description>Anything that makes it harder for the &quot;state&quot; to track us. Works for me!</description>
		<content:encoded><![CDATA[<p>Anything that makes it harder for the &#8220;state&#8221; to track us. Works for me!</p>
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	<item>
		<title>By: bardfinn</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-128840</link>
		<dc:creator>bardfinn</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-128840</guid>
		<description>For those who don&#039;t speak German, &quot;Ueberwachenden&quot; is literally &quot;hyper-attentive&quot;, the German idiom for a smothering micro-managing personality.</description>
		<content:encoded><![CDATA[<p>For those who don&#8217;t speak German, &#8220;Ueberwachenden&#8221; is literally &#8220;hyper-attentive&#8221;, the German idiom for a smothering micro-managing personality.</p>
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	</item>
	<item>
		<title>By: Takuan</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129096</link>
		<dc:creator>Takuan</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129096</guid>
		<description>I will be soon opening the first temple of the Holy Church of the Sacred Mask.  As an adherent, you will enjoy protection in your daily mask wearing as a citizen&#039;s basic right.  We will be using muslim veils and burkhas as well as other similar religious practices as precedent for our right to go masked in public places. It is an undemanding faith, do as you like,convert others - the sole commandment is to declare yourself as a Sacred Masker on your census and other government forms.In time we wil have the same recognition as the Jedi and the $cientologists.

Perhaps the Church of the FSM will amalgamate with us.</description>
		<content:encoded><![CDATA[<p>I will be soon opening the first temple of the Holy Church of the Sacred Mask.  As an adherent, you will enjoy protection in your daily mask wearing as a citizen&#8217;s basic right.  We will be using muslim veils and burkhas as well as other similar religious practices as precedent for our right to go masked in public places. It is an undemanding faith, do as you like,convert others &#8211; the sole commandment is to declare yourself as a Sacred Masker on your census and other government forms.In time we wil have the same recognition as the Jedi and the $cientologists.</p>
<p>Perhaps the Church of the FSM will amalgamate with us.</p>
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	<item>
		<title>By: ricket</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-129097</link>
		<dc:creator>ricket</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-129097</guid>
		<description>Just point a tv remote at your laptop&#039;s built-in camera (like an iSight, sorry Mac dude here). You can easily see the remote&#039;s IR LED via the camera.</description>
		<content:encoded><![CDATA[<p>Just point a tv remote at your laptop&#8217;s built-in camera (like an iSight, sorry Mac dude here). You can easily see the remote&#8217;s IR LED via the camera.</p>
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	</item>
	<item>
		<title>By: soubriquet</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-814412</link>
		<dc:creator>soubriquet</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-814412</guid>
		<description>This has been a fascinating read, especially the digressions about traffic cameras and the dirty tricks the U.K. Home-Office use to move the goalposts whenever they wish.
However, back to the main point. We have cameras scattered all over our work sites. They&#039;re there because we were getting a lot of break-ins and thefts, and because a security guard, responding to a sounding alarm was attacked and seriously injured.
Just like many other people, I&#039;m not happy about all pervasive surveillance, and believe it to be an intrusion in public places, but believe me, if I hear a door being smashed in in the night, I&#039;d rather be able to record and report what&#039;s happening, and guide the police to the person hiding, (as he believes), than go out and search, in the darkness, for an armed crack-head.
Lastly, as others have said, this LED idea is just the equivalent of carrying a big banner, saying &quot;look at me!&quot;, Most intelligent security systems now flag anomalies as alarms. If a camera is blinded, or goes dark, then you can bet someone&#039;s going to notice.
Far better just to look nondescript and blend in with the crowd.</description>
		<content:encoded><![CDATA[<p>This has been a fascinating read, especially the digressions about traffic cameras and the dirty tricks the U.K. Home-Office use to move the goalposts whenever they wish.<br />
However, back to the main point. We have cameras scattered all over our work sites. They&#8217;re there because we were getting a lot of break-ins and thefts, and because a security guard, responding to a sounding alarm was attacked and seriously injured.<br />
Just like many other people, I&#8217;m not happy about all pervasive surveillance, and believe it to be an intrusion in public places, but believe me, if I hear a door being smashed in in the night, I&#8217;d rather be able to record and report what&#8217;s happening, and guide the police to the person hiding, (as he believes), than go out and search, in the darkness, for an armed crack-head.<br />
Lastly, as others have said, this LED idea is just the equivalent of carrying a big banner, saying &#8220;look at me!&#8221;, Most intelligent security systems now flag anomalies as alarms. If a camera is blinded, or goes dark, then you can bet someone&#8217;s going to notice.<br />
Far better just to look nondescript and blend in with the crowd.</p>
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	</item>
	<item>
		<title>By: Flashback</title>
		<link>http://boingboing.net/2008/02/20/infrared-leds-make-y.html#comment-595021</link>
		<dc:creator>Flashback</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-595021</guid>
		<description>So many experts in one place.. grab a coffee it&#039;s a long post!

I am the original inventor of the Flashback anticamera system which I sold during the early days of speed cameras in the early 90&#039;s {Gatso MK1&#039;s which were film cameras with doppler-shift radar modules inside). My system used profesional photographic slave-flash guns (Haminax), which fired a custom xenon strobe light straight into the perspex numberplate which had blacked out sides to trap the light in the plate. The result was that the plate was massively over-exposed and all &#039;they&#039; got was a white sqaure. End result? Home Office broke the door down at 5am, and confiscated just about everything. Was warned not to do it again although there was nothing illegal about the product.. that was over 15 years ago. The systems also worked in daylight and was using visible white light at a colour temperature of 9500 kelvin. 

In 1995  I started a security company, which was primarily selling CCTV, Access Control and Intruder Alarms. I have over 20 years of experience with cameras such as Burle, Sony, Panasonic, Vista (Norbain PLC), American Dynamics etc. Later I was asked to provide a white paper to the House of Commons on my views on Road Charging scheme they were planning to introduce. I suggested that using RFID chips stuck in vehicle license plates was the better of the two technologies.. but they voted the option out and instead went with CCTV and ANPR (Automatic number plate recognition). I advised them that this was NOT the technology to persue as it IS defeatable.. but clearlyb someone in the industry was on the payroll so CCTV was voted in. In late 2006 I started another technology company which had a decent resource budget as I have professional funding for an incar safety system. This system communicated with other vehicles which had the same system, and warned of threats. The original concept was like a modern day CB radio, in which subscribers would be part of &quot;The motorists&#039; private defence network&quot; at around Â£7 per month. The unit had onboard GPS/GPRS, and also using novel Infra Red technologies and new ground-breaking discreet components from CREE Secmiconductors; it was able to communicate using very high power IR bursts - even through thick fog to warn you that another car was braking ahead even though you could not see it. The downside was that if there was a CCTV camera present IT WOULD NOT RECORD THE NUMBER PLATE - Infact it was so powerful the camera didn&#039;t even see the car. The largest global ANPR supplier is Pips Technology (Google that and have a read). Here in the UK, they were stupid enough to put their data sheets on their web, so by determining the type of pulse output signature (their IR light is modulated not on all the time), we can tell what type of camera they are using. So the system could detect a NEW speed camera which was not yet on the GPS camera database, and then transmit a warning to all other system users IN REAL TIME that a new camera had been discovered.. 

We spent Â£16,000 in legal expenses cheking that the unit was not illegal. The old law only mentioned that it was illegal to tamper with the font, spacing, reflectivity, refractivity, of a license plate etc but nothing about stopping cameras from reading it. At that time, members of the home office told us that if we sold the product, I would be arrested under the Anti-Terrorism Law 2000.. (as if a terrorist is going to use a car registered to him). We explained that there was nothing illegal about it but still the threat was made again. Ten days after that conversation, the law in the UK was changed regarding license plates - the new law states, &quot;It is illegal to prevent a license plate from being read; by manual or electronic means&quot;. So that covers everything in one sentence.

To the camera experts that have posted on here: In a mobile situation, the window of opportunity for an ANPR camera is normally only 50metres. Therefore at anything over 30mph or motorway speeds they only get a few frames in before the vehicle is out of range.. we pulsed our IR led arrays with a forward current of 20AMPS!!! that is so bright that the white ballance circuit has a fit and the whole scene is just over-exposed. The units were mounted on customn numberplate surrounds, you can buy them cheaply on ebay. They had copper buss-bars in them to dissapate the heat, and the IR units themselves are military grade TO66 can units (Like these but these are another make, ours did not have public data sheets - Google LED810-66-16100,). I spent Â£Â£Â£ on research, and more on prototyping. We had an ex Sony-Erikson phone company in Kuala Lumpur, Malay, banging out the clever bits, and China was doing the mass assembly of the boards etc. (Tip - never bother with patents or copyright if you send your product to china for manufacture, as to the chinese, Copyright means right to copy and your product will be on the market in china before you get it launched properly!)

Anyway, the science works when you use the right components. I cannot market it and have lost three years of my life developing it. It is not illegal to discuss, it is not illegal to fit to your vehicle (in the UK anyway) as the type approval states that any VISIBLE light emitted at the back of the vehicle must be red.. and it&#039;s invisible at 810/940nM. BUT it is illegal to use. You can also be charged with &quot;perverting the cause of justice&quot; and I am sure the home office will have made up another bunch of laws to protect them.

One more thing. DO NOT UNDER ANY CIRCUMSTANCES USE HIGH POWER INFRA RED ON CAPS AND CLOTHING ETC YOU WILL BLIND SOMEONE - Probably yourself.

I hope this has shed some light (sorry) on an interesting topic. I don&#039;t mind losing as much as I have, but I wish the governements would stop trying to bull**** us when they say it&#039;s all in the name of preventing terrorism.. it&#039;s just mass revenue generation and they don&#039;t want us fighting back.</description>
		<content:encoded><![CDATA[<p>So many experts in one place.. grab a coffee it&#8217;s a long post!</p>
<p>I am the original inventor of the Flashback anticamera system which I sold during the early days of speed cameras in the early 90&#8242;s {Gatso MK1&#8242;s which were film cameras with doppler-shift radar modules inside). My system used profesional photographic slave-flash guns (Haminax), which fired a custom xenon strobe light straight into the perspex numberplate which had blacked out sides to trap the light in the plate. The result was that the plate was massively over-exposed and all &#8216;they&#8217; got was a white sqaure. End result? Home Office broke the door down at 5am, and confiscated just about everything. Was warned not to do it again although there was nothing illegal about the product.. that was over 15 years ago. The systems also worked in daylight and was using visible white light at a colour temperature of 9500 kelvin. </p>
<p>In 1995  I started a security company, which was primarily selling CCTV, Access Control and Intruder Alarms. I have over 20 years of experience with cameras such as Burle, Sony, Panasonic, Vista (Norbain PLC), American Dynamics etc. Later I was asked to provide a white paper to the House of Commons on my views on Road Charging scheme they were planning to introduce. I suggested that using RFID chips stuck in vehicle license plates was the better of the two technologies.. but they voted the option out and instead went with CCTV and ANPR (Automatic number plate recognition). I advised them that this was NOT the technology to persue as it IS defeatable.. but clearlyb someone in the industry was on the payroll so CCTV was voted in. In late 2006 I started another technology company which had a decent resource budget as I have professional funding for an incar safety system. This system communicated with other vehicles which had the same system, and warned of threats. The original concept was like a modern day CB radio, in which subscribers would be part of &#8220;The motorists&#8217; private defence network&#8221; at around Â£7 per month. The unit had onboard GPS/GPRS, and also using novel Infra Red technologies and new ground-breaking discreet components from CREE Secmiconductors; it was able to communicate using very high power IR bursts &#8211; even through thick fog to warn you that another car was braking ahead even though you could not see it. The downside was that if there was a CCTV camera present IT WOULD NOT RECORD THE NUMBER PLATE &#8211; Infact it was so powerful the camera didn&#8217;t even see the car. The largest global ANPR supplier is Pips Technology (Google that and have a read). Here in the UK, they were stupid enough to put their data sheets on their web, so by determining the type of pulse output signature (their IR light is modulated not on all the time), we can tell what type of camera they are using. So the system could detect a NEW speed camera which was not yet on the GPS camera database, and then transmit a warning to all other system users IN REAL TIME that a new camera had been discovered.. </p>
<p>We spent Â£16,000 in legal expenses cheking that the unit was not illegal. The old law only mentioned that it was illegal to tamper with the font, spacing, reflectivity, refractivity, of a license plate etc but nothing about stopping cameras from reading it. At that time, members of the home office told us that if we sold the product, I would be arrested under the Anti-Terrorism Law 2000.. (as if a terrorist is going to use a car registered to him). We explained that there was nothing illegal about it but still the threat was made again. Ten days after that conversation, the law in the UK was changed regarding license plates &#8211; the new law states, &#8220;It is illegal to prevent a license plate from being read; by manual or electronic means&#8221;. So that covers everything in one sentence.</p>
<p>To the camera experts that have posted on here: In a mobile situation, the window of opportunity for an ANPR camera is normally only 50metres. Therefore at anything over 30mph or motorway speeds they only get a few frames in before the vehicle is out of range.. we pulsed our IR led arrays with a forward current of 20AMPS!!! that is so bright that the white ballance circuit has a fit and the whole scene is just over-exposed. The units were mounted on customn numberplate surrounds, you can buy them cheaply on ebay. They had copper buss-bars in them to dissapate the heat, and the IR units themselves are military grade TO66 can units (Like these but these are another make, ours did not have public data sheets &#8211; Google LED810-66-16100,). I spent Â£Â£Â£ on research, and more on prototyping. We had an ex Sony-Erikson phone company in Kuala Lumpur, Malay, banging out the clever bits, and China was doing the mass assembly of the boards etc. (Tip &#8211; never bother with patents or copyright if you send your product to china for manufacture, as to the chinese, Copyright means right to copy and your product will be on the market in china before you get it launched properly!)</p>
<p>Anyway, the science works when you use the right components. I cannot market it and have lost three years of my life developing it. It is not illegal to discuss, it is not illegal to fit to your vehicle (in the UK anyway) as the type approval states that any VISIBLE light emitted at the back of the vehicle must be red.. and it&#8217;s invisible at 810/940nM. BUT it is illegal to use. You can also be charged with &#8220;perverting the cause of justice&#8221; and I am sure the home office will have made up another bunch of laws to protect them.</p>
<p>One more thing. DO NOT UNDER ANY CIRCUMSTANCES USE HIGH POWER INFRA RED ON CAPS AND CLOTHING ETC YOU WILL BLIND SOMEONE &#8211; Probably yourself.</p>
<p>I hope this has shed some light (sorry) on an interesting topic. I don&#8217;t mind losing as much as I have, but I wish the governements would stop trying to bull**** us when they say it&#8217;s all in the name of preventing terrorism.. it&#8217;s just mass revenue generation and they don&#8217;t want us fighting back.</p>
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