Same Apparent Brightness

I was looking at using a PHR-803 T Diode for a scanner and was wondering what mw it could be run at for at least an hour and not get overly hot, and at that power, what mW red and green diodes would have similar apparent brightness... I plan on using an IR filter but is there any UV filter that would not take away the brightness of the blu-ray but take out some of the more dangerous, less visible rays...

oh and for cooling, I am thinking of using fans, a bent computer heatsink, and a lot of thermal grease...,

Cheers,

Mike

You should get a cherry picked PHR with >405nm.

You can run it at 110mA..

Just read the basic FAQ's thread in the sticky section and it will make better sense.

--Hydro15

I read it, I've been reading parts of sam's laser faq, and searching some of the older threads and tutorials, and have yet to find anything on at what power the different wavelength diodes would have a similar apparent brightness, that could be just me though, I tend to not see things right in front of me, but if you could point out that information, that would be awesome

StonedImmaculate said:

... I plan on using an IR filter but is there any UV filter that would not take away the brightness of the blu-ray but take out some of the more dangerous, less visible rays...

Click to expand...

You don't need a IR filter for a 405nm diode

Nope, no filter necessary for blu-rays..

Here's a document that should help you out..

http://www.cnilaser.com/PDF/RGB_mix_for_laser_show.pdf

Just take the blue values and double them.. that should give you a close match for blu-ray..

Thanks, I looked all over for that.

Head to Photon Lexicon and search for Chroma, its a program that someone developed that will give you very close values needed to create any color from any laser wavelength combo. Chroma - a laser color blender - Photonlexicon

For cooling it is best to have a custom heat-sink made, or try one of these. http://modwerx.com/shop/lab-style-heatsink-for-12mm-laser-modules-p-49.html I made them and can vouch for their quality. Thermal grease is terrible conductor of heat in comparison to aluminum or solid metal. It is better then air but just using a bunch of thermal grease to create your own heat-sink will be very inefficient.