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Old 07-11-2018, 02:41 AM
 
Location: Louisville KY
3,772 posts, read 3,389,104 times
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I've got a lil project I want to start working on, and I can't find anything on google about them at all.
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Old 07-11-2018, 02:53 AM
 
Location: San Antonio/Houston
32,495 posts, read 50,173,619 times
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Me either. What do you need them for?
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Old 07-11-2018, 03:45 AM
 
Location: Westwood, MA
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What exactly do you mean when you talk about phosphor cubes? I’m familiar with phosphor screens and flash cubes, but haven’t run across phosphor cubes.
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Old 07-11-2018, 09:04 AM
 
Location: Somewhere in northern Alabama
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I learned something today: https://phys.org/news/2017-06-phosph...es-cuboid.html

The article gives a clue to why they aren't available - they are inherently weak and currently may not exist outside of lab environments, much less survive shipping.
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Old 07-11-2018, 09:34 PM
 
Location: Westwood, MA
3,261 posts, read 4,193,140 times
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Quote:
Originally Posted by harry chickpea View Post
I learned something today: https://phys.org/news/2017-06-phosph...es-cuboid.html

The article gives a clue to why they aren't available - they are inherently weak and currently may not exist outside of lab environments, much less survive shipping.
Interesting, but those are phospholipids. Is that what the OP meant?
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Old 07-12-2018, 12:59 AM
 
Location: San Antonio/Houston
32,495 posts, read 50,173,619 times
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What about phosphor powder?
https://m.aliexpress.com/wholesale/phosphor-powder.html
Do you need to add it to paint, to create glow effect?
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Old 07-13-2018, 11:35 PM
 
Location: Louisville KY
3,772 posts, read 3,389,104 times
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Quote:
Originally Posted by elnina View Post
Me either. What do you need them for?
I figured out how BMW makes their laser headlights work, and want to make a set for myself. They use phosphor cubes to difuse the laser in to white light.
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Old 07-14-2018, 11:51 AM
 
19,813 posts, read 15,187,583 times
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Quote:
Originally Posted by JaxRhapsody View Post
I figured out how BMW makes their laser headlights work, and want to make a set for myself. They use phosphor cubes to difuse the laser in to white light.
BMW uses yellow phosphorus. Do a search on yellow phosphorus suppliers.
''BMW's new headlight technology is powered by lasers, but the important thing to note is that when you look into them, you're not looking at an actual laser.

What happens with each light is that three blue lasers positioned at the rear of the assembly fire onto a set of mirrors closer to the front. Those mirrors focus the laser energy into a lens filled with yellow phosphorus. The yellow phosphorus, when excited by the blue laser, emits an intense white light. That white light shines backward, onto a reflector. The reflector then bounces the more diffused white light forward, shining it out of the front of the headlight casing as a beam that is powerful, yet still able to be gazed upon.'' [Bolding mine]

https://auto.howstuffworks.com/laser...headlight1.htm
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Old Today, 01:40 PM
 
Location: Maryland
456 posts, read 123,837 times
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Quote:
Originally Posted by Mike555 View Post
BMW uses yellow phosphorus. Do a search on yellow phosphorus suppliers.
''BMW's new headlight technology is powered by lasers, but the important thing to note is that when you look into them, you're not looking at an actual laser.

What happens with each light is that three blue lasers positioned at the rear of the assembly fire onto a set of mirrors closer to the front. Those mirrors focus the laser energy into a lens filled with yellow phosphorus. The yellow phosphorus, when excited by the blue laser, emits an intense white light. That white light shines backward, onto a reflector. The reflector then bounces the more diffused white light forward, shining it out of the front of the headlight casing as a beam that is powerful, yet still able to be gazed upon.'' [Bolding mine]

https://auto.howstuffworks.com/laser...headlight1.htm
Technically, if you are referring to light emitted after being excited by another light of a different wavelength, that is fluorescence, not phosphorescence. The material being illuminated would be considered a fluorophore or fluorochrome. Also, one more tidbit, fluorescent materials have a characteristic Stokes Shift for the light wavelength that can excite the fluorescence. That shift is always to emit a longer wavelength/lower energy light than the shorter wavelength/higher energy light used for excitation (cannot violate conservation of energy).

https://en.m.wikipedia.org/wiki/Fluorescence

Last edited by LesLucid; Today at 01:48 PM..
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