This doesn't need a vacuum but it does need a moisture barrier and that can be expensive. The biggest barrier to large scale production is simply cost. It costs very little to make a light bulb today.

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With a future emphasis on manufacturing technology, this structure may provide an important, low-cost and efficient means that will replace incandescent lighting in many different applications.

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We hope it means the end of the light bulb. We don't really want them, they use an extraordinary amount of energy.

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