Author Topic: Trying to find a denser LED than the 100w COBs on Amazon  (Read 253 times)

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Offline netham45

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Trying to find a denser LED than the 100w COBs on Amazon
« on: April 04, 2021, 02:22:40 am »
I have some 100W LEDs I got off of Amazon that I'm shining through a small 2mm^2-ish hole onto a projector. I'm looking for something that has the LEDs more dense on the board so I can get more light through that hole.

If I could find something like a normal 100W LED COB that had all of the LEDs in a smaller area that would work, or if I could find a chip with the same density but brighter per LED that'd also work.

I found http://fcopto.com/portfolio-items/luna-200/?portfolioCats=3 which looks like it would do what I want but I can't find it for sale anywhere. Does anyone know where I can find an LED like that or a comparable one?
 

Offline mvs

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Re: Trying to find a denser LED than the 100w COBs on Amazon
« Reply #1 on: April 04, 2021, 08:07:33 am »
I have some 100W LEDs I got off of Amazon that I'm shining through a small 2mm^2-ish hole onto a projector. I'm looking for something that has the LEDs more dense on the board so I can get more light through that hole.
The hole is way to small for a COB LED, look for Cree XHP or something similar.
 

Offline Marco

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Re: Trying to find a denser LED than the 100w COBs on Amazon
« Reply #2 on: April 04, 2021, 09:46:32 am »
Car LED headlights?
 

Offline mikerj

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Re: Trying to find a denser LED than the 100w COBs on Amazon
« Reply #3 on: April 04, 2021, 10:28:42 am »
Could you not put a condenser lens between your LED and the hole?  You'll be throwing away a huge amount of light otherwise.
 
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Online beanflying

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Re: Trying to find a denser LED than the 100w COBs on Amazon
« Reply #4 on: April 04, 2021, 10:46:43 am »
Sounds much more like you need an optical solution as much as more power. What are you projecting into/onto or through? Would you be better to look at something in the visible Laser area for a solution?
Coffee, Food, R/C and electronics nerd in no particular order. Also CNC wannabe, 3D printer and Laser Cutter Junkie and just don't mention my TEA addiction....
 


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