Anti-reflective coating on glass

[bpn25]

My friend and fellow reefer works at an optics company. He has recently designed a coating for the lids on his tank that will allow 100% transmission of light within the visible spectrum and will also be corrosion resistent.
This is usefull becasue light naturally loses 10-15% of its intensity when it passes through glass, however, with this coating there will be no lose of intensity.
The coating will probably cost about $5000 for his 90g tank, but since he does the coatings himself, it will be free. This is out of reach for most hobbyist, but interesting none the less.

 

[culp]

why not just get rid of glass top.

 

[renogaw]

yea, it's not really a light passing through issue, it's a heat and gas exchange issue and salt creep covering the glass. thats why most people dont use lids

 

[bang guy]

I think it's interesting.
How well does the oil coating stand up to hot saltwater?

 

[bpn25]

He likes the lids because of evaporation and he is worried about fish jumping out.
Bang Guy, it isn't an oil coating. It is some compound that is built one molecule at a time very, very accuratley.

 

[kmart189]

100% huh? He must have developed one $#ll of a product. Since optics companies (telescopes, binoculars, rifle scopes, etc...) are always spending $$$ trying to do just that. Im doubtful. Any info on it?

 

[culp]

to keep fish from jumping out some people use egg crate.

 

[yerboy]

for $9000 i think i would just hire someone to stand there with a net and catch and jumpers and pour water in as needed for top off.
Does sound pretty awesome though

 

[blackjacktang]

Originally Posted by yerboy
http:///forum/post/2916367
for $9000 i think i would just hire someone to stand there with a net and catch and jumpers and pour water in as needed for top off.
Does sound pretty awesome though
Lol

 

[snakeblitz33]

Originally Posted by yerboy
http:///forum/post/2916367
for $9000 i think i would just hire someone to stand there with a net and catch and jumpers and pour water in as needed for top off.
Does sound pretty awesome though
agreed!

 

[reefkprz]

Originally Posted by bpn25
http:///forum/post/2910619
He has recently designed a coating for the lids on his tank that will allow 100% transmission of light within the visible spectrum and will also be corrosion resistent..
this is not possible. no matter what you smear on the out side of the glass your not going to change the makeup of the glass itself. your friend is pulling your leg.

 

[coral keeper]

Originally Posted by yerboy
http:///forum/post/2916367
for $9000 i think i would just hire someone to stand there with a net and catch and jumpers and pour water in as needed for top off.
Does sound pretty awesome though
+1! LOL

 

[silencio530]

pictures or it never happened lol

 

[bpn25]

Originally Posted by reefkprZ
http:///forum/post/2924059
this is not possible. no matter what you smear on the out side of the glass your not going to change the makeup of the glass itself. your friend is pulling your leg.
No, its actually true. You can change the optical properties of the class by placing different coatings on it. What it does is modifies refractive index of the glass within a given spectrum. He just coated a 4ft. lense for NASA's new space telescope.
Here is another use for AR coatings
http://www.devicedaily.com/misc/new-...ll-angles.html

 

[jennythebugg]

i don't really see anyone paying that much for that reason

 

[lizjane01]

Originally Posted by reefkprZ
http:///forum/post/2924059
this is not possible. no matter what you smear on the out side of the glass your not going to change the makeup of the glass itself. your friend is pulling your leg.
Actually AR would reduce the reflections on the surface of the glass and would allow more light threw.
I have been selling AR coating for about 16 years. It is not extremely scratch resistant and is very sensitive to chemical.

 

[bpn25]

Thanks for the support. My friend was just going to do it for fun becasue he works there and can do it for free.

 

[pleasants9]

sounds like a sweet idea. i just finished my physics classes last semester here at UF and i thnk we spent a good week on anti-reflective coatings for lenses and what not.