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	<title>Technabob &#187; polarized</title>
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	<description>Cool Gadgets, Gizmos, Games and Weird Science</description>
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		<title>Polarized Privacy Monitor Hack: Now You See It, Now It&#8217;s White</title>
		<link>http://technabob.com/blog/2011/11/25/polarized-privacy-monitory-hack/</link>
		<comments>http://technabob.com/blog/2011/11/25/polarized-privacy-monitory-hack/#comments</comments>
		<pubDate>Fri, 25 Nov 2011 21:00:29 +0000</pubDate>
		<dc:creator>Lambert Varias</dc:creator>
				<category><![CDATA[Hacks + Mods]]></category>
		<category><![CDATA[Just Plain Fun]]></category>
		<category><![CDATA[Strange + Wonderful]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[awesome]]></category>
		<category><![CDATA[geeky]]></category>
		<category><![CDATA[instructables]]></category>
		<category><![CDATA[lcd]]></category>
		<category><![CDATA[monitor]]></category>
		<category><![CDATA[polarized]]></category>
		<category><![CDATA[spy]]></category>
		<category><![CDATA[weird]]></category>

		<guid isPermaLink="false">http://technabob.com/blog/?p=74730</guid>
		<description><![CDATA[It may sound like an oxymoron, but the Privacy Monitor is actually a very cool and somewhat practical mod by Instructables user dimovi. Only the wearer of a complementary pair of glasses can see what&#8217;s being displayed on the Privacy Monitor; everyone else will only see an annoying white screen.&#8230;]]></description>
			<content:encoded><![CDATA[<p>It may sound like an oxymoron, but the Privacy Monitor is actually a very cool and somewhat practical mod by Instructables user dimovi. Only the wearer of a complementary pair of glasses can see what&#8217;s being displayed on the Privacy Monitor; everyone else will only see an annoying white screen.</p>
<p><img class="aligncenter size-full wp-image-74735" src="http://technabob.com/blog/wp-content/uploads/2011/11/privacy-monitor-by-dimovi.jpg" alt="privacy monitor by dimovi" width="600" height="358" title="privacy monitor by dimovi photo" /></p>
<p><span id="more-74730"></span>Dimovi was able to pull this off by removing the polarized film within the LCD monitor and attaching it to a pair of sunglasses. You have to be familiar with <a href="http://www.digicamhelp.com/learn/shoot-like-a-pro/what-is-polarization/">polarization</a> to understand how this algebraic trick works. I trust in your Googling skills but for now just know that a polarizer – such as the polarized film commonly found in monitors – is designed to allow only a portion of light waves to pass through it. Watch and be amazed:</p>
<p><a href="http://technabob.com/blog/2011/11/25/polarized-privacy-monitory-hack/"><strong>Click to View Embedded Video Clip</strong></a></p>
<p>The <a href="http://technabob.com/blog/2011/08/03/playstation-3d-monitor-kit-release-date/">PlayStation 3D monitor</a> works in a similar fashion to allow individual players to see just their half of a two-player game.</p>
<p>Unfortunately the polarization mod is as complicated as the property of polarization. It involves a laser cutter, some solvent and a gerbil. Okay I was kidding about the last part. Go undercover and sneak to <a href="http://www.instructables.com/id/Privacy-monitor-made-from-an-old-LCD-Monitor/">Instructables</a> to get the details on the mod. This post will not self-destruct.</p>
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		<title>LG Cinema 3D TV: For Once, Being Passive is Good</title>
		<link>http://technabob.com/blog/2011/07/09/lg-cinema-3d-tv-47lw5600-review/</link>
		<comments>http://technabob.com/blog/2011/07/09/lg-cinema-3d-tv-47lw5600-review/#comments</comments>
		<pubDate>Sat, 09 Jul 2011 16:01:06 +0000</pubDate>
		<dc:creator>Technabob</dc:creator>
				<category><![CDATA[Home Entertainment]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Video]]></category>
		<category><![CDATA[3d]]></category>
		<category><![CDATA[3d glasses]]></category>
		<category><![CDATA[hdtv]]></category>
		<category><![CDATA[lg]]></category>
		<category><![CDATA[passive]]></category>
		<category><![CDATA[polarized]]></category>
		<category><![CDATA[review]]></category>

		<guid isPermaLink="false">http://technabob.com/blog/?p=60942</guid>
		<description><![CDATA[The folks at LG were kind enough to loan me one of their Cinema 3D HDTVs for the last couple of weeks, and I wanted to share with you my experiences with the set, and the 3D technology it uses. The set I test-drove was the LG Infinia 47LW5600, a&#8230;]]></description>
			<content:encoded><![CDATA[<p>The folks at LG were kind enough to loan me one of their Cinema 3D HDTVs for the last couple of weeks, and I wanted to share with you my experiences with the set, and the 3D technology it uses. The set I test-drove was the LG Infinia 47LW5600, a full 1080p, LED-edge-lit LCD screen.</p>
<p><img class="aligncenter size-full wp-image-60972" title="lg_infinia_cinema_3d_47lw5600_hdtv" src="http://technabob.com/blog/wp-content/uploads/2011/07/lg_infinia_cinema_3d_47lw5600_hdtv.jpg" alt="lg infinia cinema 3d 47lw5600 hdtv" width="600" height="480" /></p>
<p><span id="more-60942"></span>I&#8217;ll start out by saying that this is the first time I&#8217;ve had a 3D TV in my home, as I had just purchased a brand new 58&#8243; plasma months before all the 3D sets came out, and never really saw a need to upgrade. Other than the fact that my set was just fine without 3D, I really didn&#8217;t like the expensive, headache-inducing shutter glasses that came with most sets. So when I found out the LG set I was going to get to test drive would use passive lens glasses, I was happy.</p>
<p>I count myself among the masses of you out there who can&#8217;t stand the idea of a) paying $100 or more for a set of 3D glasses you&#8217;ll use only every once in a while; b) having yet one more gadget to recharge; and c) sitting there and getting a headache after watching 30 minutes of content. I&#8217;m happy to tell you that the LG Cinema 3D set I tested has none of these problems. LG&#8217;s Cinema 3D displays use a special set of polarizing layers which allow you to use the same sort of cheap polarized glasses you get at the movie theater. In my experience with the display, I found these to be far more pleasant than any of the other 3D glasses I&#8217;ve tried on at various trade shows and at the store when checking out 3D sets.</p>
<p><img class="size-full wp-image-60973 alignleft" title="me_3d" src="http://technabob.com/blog/wp-content/uploads/2011/07/me_3d.jpg" alt="me 3d" width="250" height="333" />See, don&#8217;t I look stylish in my 3D specs? Ok, not really. But the real question is, how good is the 3D? Well, I&#8217;m happy to say that the LG Cinema 3D display produced tremendous depth with original 3D content, and I was able to sit for long sessions without a headache the sort of general discomfort the flickering active lens 3D glasses cause for me. Now, there is a trade-off with this technology &#8211; horizontal line resolution is cut in half for each frame, sending only half the display&#8217;s 1920&#215;1080 resolution to each eye (540 lines). What I noticed was that when watching content in 3D, it was <em>slightly</em> softer than in 2D and on active lens systems, but for the most part I&#8217;d say it was worth the trade-off. I&#8217;d rather be able to sit through a movie without my eyes killing me than to be able to see every pimple on the actors&#8217; faces.</p>
<p>I tested the LG display with a variety of 3D content, including Blu-ray discs, Satellite 3D content, and 3D video games. Images in movies like <em>Alice in Wonderland</em> and <em>Despicable Me</em> jumped far off the screen, and made me feel like I was in the theater (without all the screaming kids and sticky popcorn goo on the floor). But I&#8217;ll be honest, 3D sets are only as good as the content, and at this point, the selection and variety of quality 3D movies and programs is still pretty limited. Never mind the fact that you&#8217;ll be paying a premium for 3D discs. Most 3D Blu-rays (when you can find them) will set you back around $40 instead of the regular $20-$25. On the other hand 3D gaming seems to be the most promising use for these displays at the moment. I hooked up my PS3, and had a blast playing <em>Killzone 3, Super Stardust HD</em> and the beta of <em>Uncharted 3</em> on this set and they all looked great. Here&#8217;s a shot of <em>Drake&#8217;s Deception</em> running in 3D mode. Of course, it&#8217;s always hard to glean anything from a 2D photo of a stereoscopic image, so you&#8217;ll just have to take my word for it that it looks good.</p>
<p><img class="aligncenter size-full wp-image-60975" title="uncharted_3_in_3d" src="http://technabob.com/blog/wp-content/uploads/2011/07/uncharted_3_in_3d.jpg" alt="uncharted 3 in 3d" width="600" height="431" /></p>
<p>There&#8217;s no way I could have survived my 5-hour FPS 3D gaming session with active shutter 3D glasses. I think I would have hurled. Sure, I took a couple of 2 minute breaks, but was able to get right back to it with the lightweight and comfortable passive lenses.</p>
<p>The display also offers a 2D-to-3D mode, which manages to extract simulated depth from any source material (although it doesn&#8217;t appear to work with content in the Smart TV application.) Depth was definitively less pronounced and realistic than with true 3D source material, but I&#8217;m still always amazed that they can even provide the illusion of 3D depth from random content. It&#8217;s more of a novelty than anything else, but if you want to wear your 3D glasses all the time, there&#8217;s a way you can do it.</p>
<p>So with all that said about the 3D aspects of the 47LW5600, here&#8217;s a rundown of some of the other features of the set. Since it&#8217;s an edge-lit display, it&#8217;s super thin (just over 1&#8243; thick when hung on the wall,) and looks great from the side. In general, I didn&#8217;t see too much in the way of cloudiness or variance in brightness that edge-lit displays often exhibit, except on a pitch black screen. And if that bugs you, LG does offer a version of local-dimming to increase contrast and black levels, but I found the feature to be annoying at times, causing occasional jumps in intensity and too much blooming in really high contrast scenes. With an edge-lighting setup, it&#8217;s tough to pull off true local-dimming anyhow. Colors on the set were vibrant, and contrast was as good as any of today&#8217;s better LED/LCD sets. That said, I still prefer the more natural contrast you get out of a plasma screen &#8211; but that&#8217;s just me. Refresh rate for the display is 120Hz, which is plenty for eliminating blur on fast motion. Gor those of you who balk at anything less than a 240Hz refresh rate, get over it. Human eyes can&#8217;t tell the difference. You only really need higher refresh rates for active lens 3D in order to decrease flicker and blurring in fast-moving 3D scenes. Since this set doesn&#8217;t work that way, you won&#8217;t miss it.</p>
<p>The set also features LG&#8217;s Smart TV suite, which offers access to Netflix, YouTube, FaceBook and other web apps. I found that these apps generally loaded much faster than on my 1-1/2 year old Samsung, but I still prefer the versions of these apps on my PS3 and Apple TV over the ones built into displays at this point. You can also stream media from your DLNA-capable home computer (LG includes a copy of <em>Nero MediaHome Essentials</em> for streaming from Windows PCs).</p>
<p>Each set includes a Wi-Fi dongle for connecting to your network (I wish this was built-in), but it doesn&#8217;t protrude from the back of the set, so it&#8217;s really not a big deal.Inputs are plentiful with 4 HDMI, 2 component, 1 component, and one RF port on back. There are two USB ports as well &#8211; one for content, and the other that&#8217;s occupied by the Wi-Fi dongle. They also include 4 sets of 3D glasses (along with protective microfiber pouches.) Additional glasses retail for $12.50 a pair, but you can find them for a few dollars less online.</p>
<p>The LG Infinia 47LW5600 set has a list price of $1699 (USD), but you can find it online for as little as $1000 to $1200. It&#8217;s definitely not the cheapest 47-inch display on the market, but if you want a 3D TV and think there&#8217;s enough content out there to justify a purchase, it&#8217;s definitely worth considering the LG Cinema 3D display or one of its larger 55&#8243; or 65&#8243; brethren. Until such time that someone makes a glasses-free display that actually works without major artifacts and distortion, I&#8217;m putting my vote in the passive lens camp.</p>
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		<title>Active 3d Glasses for Samsung 3d LED Tvs Are Expensive and Ugly</title>
		<link>http://technabob.com/blog/2010/02/26/active-3d-glasses-for-samsung-3d-led-tvs/</link>
		<comments>http://technabob.com/blog/2010/02/26/active-3d-glasses-for-samsung-3d-led-tvs/#comments</comments>
		<pubDate>Fri, 26 Feb 2010 16:28:15 +0000</pubDate>
		<dc:creator>Shane McGlaun</dc:creator>
				<category><![CDATA[Home Entertainment]]></category>
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		<category><![CDATA[Video]]></category>
		<category><![CDATA[3d]]></category>
		<category><![CDATA[3D TV]]></category>
		<category><![CDATA[expensive]]></category>
		<category><![CDATA[glasses]]></category>
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		<guid isPermaLink="false">http://technabob.com/blog/?p=28912</guid>
		<description><![CDATA[I have been all excited about getting a 3D TV since hoards of them showed up at CES this year. Some of the first 3D TVs that will be on the market will be from Samsung. Its sets will hit the US and Europe next month and require active 3D&#8230;]]></description>
			<content:encoded><![CDATA[<p>I have been all excited about getting a 3D TV since hoards of them showed up at CES this year. Some of the first 3D TVs that will be on the market will be from Samsung. Its sets will hit the US and Europe next month and require active 3D glasses.</p>
<p style="text-align: center"><img class="size-full wp-image-28915  aligncenter" src="http://technabob.com/blog/wp-content/uploads/2010/02/samsungglasses-tb.jpg" alt="samsungglasses tb" width="600" height="212" title="samsungglasses tb photo" /></p>
<p><span id="more-28912"></span></p>
<p>I have had a suspicion that going with active glasses was going to be the norm, not because the tech is better necessarily, but so the TV maker can charge us an arm and a testicle for the glasses. I was right, at least in Samsung&#8217;s case.</p>
<p>The Samsung 3D active glasses needed for its TVs have turned up for sale and cost $150 per set. That&#8217;s right; a family of four will drop an extra $600 on 3D glasses alone. I&#8217;d like to kick the guy who made this decision in the balls for all 3D TV fans out there.</p>
<p>[via <a href="http://www.itproportal.com/portal/news/article/2010/2/25/samsung-3d-led-tv-glasses-cost-150-each/">ITProPortal</a>]</p>
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		<title>Eon Icube Offers Incredibly Immersive 3d Vr Experience</title>
		<link>http://technabob.com/blog/2009/04/17/eon-icube-immersive-3d-vr-system/</link>
		<comments>http://technabob.com/blog/2009/04/17/eon-icube-immersive-3d-vr-system/#comments</comments>
		<pubDate>Fri, 17 Apr 2009 12:05:53 +0000</pubDate>
		<dc:creator>Technabob</dc:creator>
				<category><![CDATA[Digital Imaging]]></category>
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		<guid isPermaLink="false">http://technabob.com/blog/?p=11634</guid>
		<description><![CDATA[This VR technology provides for a completely immersive 3-dimensional experience by surrounding users in a cube of digital imagery, combined with stereoscopic glasses and motion-tracking hardware to provide for a dizzying ride through virtual environments.

EON Reality&#8217;s ICube system uses an array of high-definition video projectors to bounce real-time CGI&#8230;]]></description>
			<content:encoded><![CDATA[<p>This VR technology provides for a completely immersive 3-dimensional experience by surrounding users in a cube of digital imagery, combined with stereoscopic glasses and motion-tracking hardware to provide for a dizzying ride through virtual environments.</p>
<p style="text-align: center;"><img class="size-full wp-image-11635 aligncenter" title="eon_icube" src="http://technabob.com/blog/wp-content/uploads/2009/04/eon_icube.jpg" alt="eon icube" width="520" height="295" /></p>
<p>EON Reality&#8217;s ICube system uses an array of high-definition video projectors to bounce real-time CGI images into a cubic room covered with white screen surfaces. Each visitor dons a special pair of lightweight 3D glasses which can be outfitted with IR markers to detect head movements. Users of the system can wind their way through anything from a stunning outdoor vista to the inside of a virtual airplane cabin, to gory innards of a virtual human anatomy lesson.</p>
<p style="text-align: center;"><img class="size-full wp-image-11636 aligncenter" title="eon_icube_vr" src="http://technabob.com/blog/wp-content/uploads/2009/04/eon_icube_vr.jpg" alt="eon icube vr" width="520" height="294" /></p>
<p>The ICube&#8217;s software even supports gesture-based control, allowing users to manipulate virtual objects in the 3D environment. There&#8217;s also an integrated 3D sound system which can by synchronized with the imagery on the cubic screens. Here&#8217;s a really cool video of the ICube in action courtesy of the guys over at  <a href="http://labs.ideo.com/2009/04/15/amazing-3d-immersion-technology/">IDEO Labs</a>, who recently got to take a test-drive of the ICube.</p>
<p><a href="http://technabob.com/blog/2009/04/17/eon-icube-immersive-3d-vr-system/"><strong>Click to View Embedded Video Clip</strong></a></p>
<p>EON offers the Icube in 3-wall, 4-wall, and 6-wall configurations, designed for everything from driving and flying simulations to scientific visualization projects. With prices well into the 6-figures, you probably won&#8217;t be installing one of these in your basement any time soon.</p>
<p>[<a href="http://www.eonreality.com/products_icube.html">EON Icube</a> via <a href="http://www.fubiz.net/2009/04/16/3d-immersion-technology/">fubiz</a>]</p>
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