Bright LED

Hi Daan,

LED Lighting with that lux range is enormous.

I am not sure if this one fits with your design -> http://www.alibaba.com/product-detail/Ali09031827-120-watt-good-heat-sind_1053170259.html

Good Luck.

Best,
Neil

LEDs are usually rated in Lumens, to get to lux we need to know the surface area, if you are focusing all the light onto a small spot with a lens the amount of lux could be large for a reasonable amount of lumens (say 1000 for a very high power LED). But if you are looking at a spherical area 1M in distance it would take a huge amount of lumens. - like 1.5 million.

looks good but the size of the led itself has to be max ( 8 cm x 8 cm )

yes there wil be a lens. and the viarity of the angle wil be between 75* and 0*
i would like to get 120000/150000 lux amounth on the 25* beam.

Iam designing my own moving head. and i am going to probl build my design in the near future. but my main problem is that i cant find a super bright led.
i need a led that can get like 120000-150000 lux at one meter. around the 400$ price.

i hope you can help me and i realy apreciate it because i cant find a good one :

Edit: max size of the led needs to be max 8 cm by 8 cm.
Edit: and if possible i want it to be a RGB led if possible but iam probl gona use some light filters if its not possible to get it around 400$

Edit: i found this realy bright led http://www.osram.com/osram_com/products/lamps...ps/sirius-hri/index.jsp?productId=ZMP_1031384 but its only a white led : and iam not sure about the price because i cant find it.

A 25* beam angle at 1m covers a surface area of 0.58 m^2. So 120,000 lux in a 25* beam angle requires 0.58*120,000=71K lumens. Best LEDs I know of produce only 740 Lumens and they are 5mmx5mm. These are the Cree U2 LEDs., You could build an array of 256 (16x16) and produce 190K lumens but your next problem will be how to get the 1.7kW of heat out of it not to mention the 521A of current to feed it.

than i think the SIRIUS HRI Metal halide 330 watt version wil be the best :

( 1m 15000 lumen 25* = 100714.01 lux )
do those Metal halide lamps become hot?

I used a 50 degree beam angle and not 25 degrees therefore my lumens calculation was in error.
You asked for 150000 lux so I think you need 22,340 lumens.
A metal halide lamp will get quite hot. As a close approximation you will need to dissipate as many watts as you put in to drive the light.

are there any lamps that are 8x8 cm or less that can create this intensity? that do not create a inmense heat. and is it possible to passive cool a 330watt metal halide lamp?

are there any lamps that are 8×8 cm or less that can create this intensity? that do not create a inmense heat. and is it possible to passive cool a 330watt metal halide lamp?