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Extend the life the TV lamp

Does anyone know why the lamp goes out? My TV's lamp failed after 2

1/2 years. I disassembled the lamp all the way to the wires to figure out what is wrong with it. I have concluded that the lamp is filled with inert gas and sealed with a cheap white compound, after this white compound is exposed to heat over many hours; it will disintegrate, cracks, and let the gas to escape leading to lamp to fail. Solution: SONY should seal the lamp using glass type seal that is used on the old type household light bulb. The lamp life should be extended to >50,000 hr.
Reply to
eliaselhossari
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I assume this is a joke. Lamps go out because the filament eventually burns through.

Reply to
William Sommerwerck

I imagine he meant a cold cathode type backlight for illuminating LCDs.

Graham

Reply to
Eeyore

There won't be an incandescent lamp in a TV.

Cold cathode fluorescent lamps fail because the cathodes wear out, usually the phosphor is depreciated by then as well.

UHP lamps in DLP and LCD sets fail because the quartz arc tube devitrifies, they run about 3,000 PSI in operation and will fail catastrophically if run too far past rated life.

Reply to
James Sweet

My ignorance is showing

Reply to
William Sommerwerck

snipped-for-privacy@gmail.com wrote in news:1191176728.554453.168250@

22g2000hsm.googlegroups.com:

The white compound does not seal the contents of the bulb inside it. It just adheres it to the reflector and other works.

Reply to
Gary Tait

Troll posting-account=ps2QrAMAAAA6_jCuRt2JEIpn5Otqf_w0

--
Adrian C
Reply to
Adrian C

There's very little mercury in one of those lamps. I wouldn't sprinkle it in my food, but there's no need for the paranoia about it either. An old thermometer contains hundreds of times the mercury.

Reply to
James Sweet

Our silly excessively risk-averse society has demonised such things without adequate reason.

Now, if you were mining the stuff, that was different.

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Graham

Reply to
Eeyore

There's such paranoia about mercury when so many common chemicals are much more hazardous.....

I used to play with mercury as a kid and look what happened... I turned into an engineer. Ooops. :)

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Reply to
Sam Goldwasser

Small amounts of mercury can be biologically manipulated into much more hazardous forms like methyl mercury. This has happened several times in history resulting in the poisoning of thousands of people.

Reply to
Meat Plow

I believe that a large part of the problem is that the current crop of journalists are almost totally ignorant of science and technology, even perhaps to the point of being afraid of them. Add all sorts of advocacy groups that invent their own "science" in support of their causes and you get our current situation.

Jerry

Reply to
Jerry Peters

In addition to ignorance you can add 'can't be bothered to research' to the list of skills held by journalists today. They'll happily reprint any old nonsense they're spoon fed.

Graham

Reply to
Eeyore

You KNOW that you're not supposed to admit that online, Sam! ;-)

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Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

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