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Mary Bellis

How Many Inventors Does it Take to Change a Lightbulb?

By , About.com GuideAugust 11, 2012

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lightbulbCountless as inventors are always re-inventing the lightbulb. However, did you know that US patent 6826983 was granted for a "Light Bulb Changer?"

The first lamps date back to 70,000 BC. Hollow rocks, shells and other natural objects were filled with moss or a similar material that was soaked with animal fat and ignited - lighting up the night. Photo: Morguefile

Adding Juice
Sir Humphrey Davy invented the first electric lamp in 1801. Davy's invention was a carbon arc lamp. These type of lamps work by hooking two carbon rods to a source of electricity. With the other ends of the rods spaced at the right distance, electrical current will flow through an "arc" of vaporizing carbon creating an intense white light.

The Future - Light Minus the Bulb
The Group IV Semiconductor company is developing a new type of lightbulb for the mass market based on a revolutionary silicon thin-film process. Their goal is to develop a consumer lightbulb based on a solid-state lighting with a much higher efficiency than conventional lightbulbs, reducing energy consumption by as much as 80 percent. With the new lightbulbs, light is emitted using thin silicon-based films on a chip (the silicon emits light). The technology requires no vacuum or glass bulbs, which will mean less waste and dramatically cheaper production costs.

The Future of Lighting
LED developers are heading toward lower-price markets that aim to replace the filament-based lightbulb which loose 95 per cent of their energy as heat. According to a Toronto Star article by Tyler Hamilton, "Osram Sylvania launched a line of LED lighting products for the home -- desk, table and floor lamps -- that use 5 watts or less, are durable and last up to 20,000 hours."

Michael Bowers, a graduate student at Vanderbilt University, was working with quantum dots, crystals the size of 33 or 34 pairs of atoms, when he discovered a potential new lighting source. When you apply electricity or light to quantom dots, they react by producing their own light, usually a strange blue color. However, Bowers had created a new smaller size of quantum dots and when he shined a laser beam on his dots, they reacted by glowing with an easy-on-the-eyes white light. Bowers is now experimenting with a quantom dot and polyurethane coating for LED bulbs.

Comments
August 28, 2009 at 8:37 am
(1) Corwin says:

One skilled experimentalist to blow the glass tube. One less skilled to inject a few milligrams of mercury. One ordinary electrician to attach the tube part to the normal plug.

August 21, 2011 at 2:27 pm
(2) chris says:

LED lights are fantastic! They now even have solar powered steet lights. No power bill at all.

August 25, 2011 at 3:25 pm
(3) Michael Avaspour says:

Hello Dear respond as a trying to help Inventors thanks and Inventor ,He is trying to gets a Technology project Loan and He working on a Technology Loan to reporting all department and nobody to be a respond and they didnt ask that which Manufacturing working with you or can you send us your a Loan application and none,and I m going in Bed 3 morning Because I am Looking which department to help a INVENTORS
and My a Technology project is at a Manufacturing in State of Pennsylvania and they stopped to working on my a Technology Invention : U.S.I.P.Because they requested me Some Fee $ on this Time and they know about Cost and price on it by a Stock Market ,Millions Dollar and I dont know why they requesting me some Fee on this time
Is that trust problem ,how is that one ,I gave them all my Technology Invention documents by completely Instruction
and they know Inventor Michael got some economy problem

Sincerely !
Inventor , Michael Avaspour from, California

Invent.newly@yahoo.com T,818-887-9295

Thanks..

Sorry , and I am apologizing for my a economy situation
and I am so too responsible on it
Would you to open a door on me to get a Loan on my
Technology please

August 26, 2011 at 7:39 am
(4) Dean Thommes says:

It only takes one inventor to change a light bulb if it was “Pre-Conditioned” with a lubricant.

September 4, 2011 at 4:16 pm
(5) Jacqueline Beusse says:

When GE announced they would produce the new light bulb with
some mercury content; originally they did not tell us they would produce it in China. Why China with all of the unemployment in the US?
GE closed the last GE light bulb plant outside of Chicago last November. The reporter watched the workers leave the plant and said “This plant manufactured one billion light bulb a year.” But no comment on the loss of jobs. Nor did the press report this in detail.
Now, who will make the new bulb that will not require a bulb?
Is the US in the running. Or, is it an automatic new product for China to manufacture and Americans to purchase.

Maybe we ought to boycott GE bulbs, burn candles and see how fast
GE “gets the light.”

it is a disappointment the US is not considered as a manufacturing base anymore.
Where is Thomas Alva Edison when he is needed.?

Jacqueline Beusse

August 19, 2012 at 11:10 pm
(6) Ken in San Jose says:

It is a shame GE closed the light bulb plant in Chicago. But why did it close? Was it just so GE could make a little more profit? Or because GE could no longer compete with lower cost imported bulbs? No company can continue if it is losing money on what it makes. This is where the company and the employees, and their unions, must work together so the jobs stay in the US.

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