Open Brain LED

[jlneng]

Check out the Brain...and the Brain illuminated by LED moonlight!

 

[Len]

Cool. Curious: what do you mean LED?

 

[Anonymous]

Light Emiting Diode

 

[jlneng]

Light emitting Diode commonly used to simulate moonlight in aquariums

 

[Anonymous]

never understood that blue led bit... since the moon is rather a very close wide band spectrum like the sun.

 

[wade1]

Does make it look rather.... "other earthly".

 

[jlneng]

With regards to the Blue light, The spectrum of moonlight is filtered, and refracted by the water and the organisms in it to a wavelength of about 460 nm which is very blue. The LEDs used in the picture are Royal Blue Luxeon stars which are rated at 455nm wavelength. I really like the effect ! My Ricordea glows more than the brain. I need to get a good picture of same.

 

[wade1]

Actually, moonlight on the water surface is near sunlight in spectral character. The water filters reds and leaves blues (effectively)... which means by using a blue lamp, you are actually simulating deeper water (but at the compromise of increased radiance levels).

Exact same effect with using blue halides... it just simulates deeper water.

For a true night viewing light, red LEDs are ideal as many fish don't see reds and it is lost quickly with depth.

 

[jlneng]

Red LEDs are a good idea. I still need to install some resistors to decrease the intensity of the Blue LEDs for night time. Most of the fish goto sleep with the lights on but it is still alittle bright.

 

[Len]

Ah, the first time I saw this thread, I don't think the first blue LED photo was uploaded.

 

[jlneng]

Hi Len,
Yes I accidently omitted attaching the 1st photo on my post.

 

[jlneng]

Check out the new & improved Brain, fat & happy after a feed!