EYE UV-CUT series lamps, same temp, same lumens (no uv filter needed)

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I just noticed on EYE's website they produce anti-uv coated bulbs that have the same 4200k temp and 65 CRI than their other bulbs. Lumens are around the same, Initial 38,000 V 34,000 Horizontal. However they are only produced in the BT37 shape.

I'm trying to find a provider that carries them.

This would eliminate having to use Lexan or anyother uv filters which can cut over 10% of light througput.

I know these bulbs are a little long, but they would fit fine in an enlcosure that is around 12 inches wide. Most 15" monitor enclosures are around that figure.

Any thoughts? Has anyone else seen these already? I searched around and didn't find any comments on them.
 
UV-cut lamps

From what I've read, you still need more UV filtering than the lamps provide. Their filters cut something like 90% of the UV, but the UV output of a MH daylight-type arc is very very high. That is a mercury vapor arc in there (with some other stuff added to get the right color output). Mercury vapor lamps are the original high-strength UV light sources, used for sterilization, tanning, etc.

Polycarbonate (i.e. Lexan), or acrylic (i.e. Plexiglas) will all cut more like 99.99%, but they will also turn yellow from the UV damage to the polymer molecules. That is why GE had to add the UV-stop coating to create Lexan-XL10, to make it usable as a window glass replacement: The coating prevents the UV from getting to the Lexan. Note that acrylic fresnels should be pretty good at protecting your LCD, but without any protection for them, the fresnels will turn yellow.

Even with a UV-cut lamp, you must wear good UV-blocking sunglasses when working with your projector's lamp on and exposed. It's too easy to burn your eyes. Don't forget to also protect other people or pets, by having them leave the room.
 
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