OK... I give up. All diodes are the same... All LEDs are diodes... Therefore, all LEDs are the same regardless of their semiconductor material, "gap", voltage, current, casing material, physical dimensions, light spectrum, other design specifications and flavor... That makes sense to a third grader, but it's hardly true. And, it's not even close to a semantic argument when you're considering real-world applications.
The semantics argument was in regard to your statement that not all diodes produce light. My point was that, yes, they all produce light, it's just that the light is not seen either because A) the diode is encased in an opaque substance that prevents us from seeing the light, or B) the light is infrared. I was merely pointing out that all diodes do
produce light. Not being able to
see the light doesn't mean it is not
produced. My reference to semantics had nothing to do with the variations between diodes.
All of these variations that you list don't ultimately change the basic manner in which a diode works and the manner in which it emits light. If it did, then not all diodes would produce light, as different diodes would operate in extremely different manners. The variations that you point out are relatively minute alterations that change the color of the light, change the manner in which current is regulated, change the intensity of the light, etc. However, these aren't vast differences that introduce entirely new health hazards that we've never dealt with before.
My main point is that the makeup of the LED is essentially the same whether it's used for a monitor or a light bulb. The size may be different, and the semiconductor material may be different, but when you start talking about these "dangerous" chemicals that are present in "new" LED light bulbs, they're the same chemicals that are in the "old" LEDs. So, unless you're claiming that a larger "gap" in the LED is a health hazard, or that the new semiconductor material is a health hazard, I don't see where these minor variations are of any health concern.
Again, I am asking you to point out these potential hazardous differences to me. I'm not claiming to know everything, but when you first use lead as an illustration, it's not convincing; incandescent bulbs contain lead. When you then point to arsenic and phosphor as examples of potentially new health hazards with these LED light bulbs, it's not convincing; virtually every LED currently in use contains phosphor, and many LEDs currently in use contain higher levels of arsenic. If there is a
new health concern related to these LED bulbs, then it hasn't been pointed out yet. That's all I'm asking for.
My bad... I didn't realize that I had to spell everything out for you. While early LCD televisions and desktop monitors may have used fluorescent lights, notebook computers have been using LEDs since the 90s.
Laptops have not been using LED backlighting since the 1990s. Sony has used LED backlights in some of its higher-end slim VAIO notebooks since 2005. Fujitsu introduced notebooks with LED backlights in 2006. In 2007, Asus, Dell, and Apple introduced LED backlights into some of their notebook models. As of 2008, Lenovo has also announced LED-backlit notebooks, and other companies like HP will also be marketing LED-backlit notebooks in the near future. This is a relatively new manufacturing concept for laptops that didn't even begin to occur until the mid-to-late 2000's.
I'd call $15B a farfetched pile of horse squeeze, especially since the government has been shifting to alternative sources of lighting for the past couple of decades. Even if it were true, when the government plans to spend $2.5T this year, that $15B expense becomes an insignificant drop in the bucket at less than 1% of the total spend. And, don't get me started on our government's pathetic energy policy that has really created this mess in the first phukin' place...
First, it's $15 billion annually, not just a one-time savings. Second, it's rather poor financial planning to scoff at $15 billion simply because we spend way more than that annually. Third, the total for budget cuts which were proposed for 2010 was $17 billion, so yes, when considered alongside our
total proposed budget cuts for
one year, it is pretty significant.
The truth is that budget planning is going to inevitably require cutting 1% of spending here, 5% of spending there, etc. It's not as if we're going to be able to realistically cut trillions of dollars in spending from just one spending source. I never said that this particular savings should be the
only way that we reduce spending. However, it's something that's certainly worth looking into.