Be Conscious Of The Source Of Light Hitting Your Screen

Powerful computers have become small and cheap enough to cram in to all sortseveryday things. Natan Linder , a student at MIT's Media Lab, thinks that fitting one inside a light bulb socket, along with a camera and projector, could provide a radical new type of interface--by turning any dining table or desk into a simple touch screen.

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Honestly, I was astonished and perplexed as to why none of the critiques of notebooks or LCD displays thatwas aware of at the time had actually mentioned this. The first thing that came to my head is that that is a relatively new technology, and the new parameters that must be evaluated are not yet part of our screening and purchasing culture. A second aspect of the issue is that the problem in my own experience just develops under real working conditions, rather than when admiring the sharp pixels of an LCD screen for a few seconds at a tradeshow, or testing the LCD viewing angle for an assessment or in a pc shop.

There are major differences between the to when it comes to fluorescent minerals. A black light aka long-wave UV is very cheap to make but the energy generated by a longwave UV lamp is not enough to make most fluorescent minerals glow. 90% of fluorescent minerals need filtered short wave UV light. The term "filtered" means the short wave UV bulb has a outside filter to help block-out the visible-light produced by the bulb. Without the filter you can't plainly see the fluorescent response. The expense of the optical filter glass is approximately 60 to 70% of the overall price to fabricate a lamp.

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