AoA;
i want to know that weather a photography gels goggles works in night using IR LEDs or not . i watch following video but i m not sure wheater it works in night or not plz help me out.thanks

http://www.youtube.com/watch?v=H2-nP2xl9Zg

http://kipkay.com/buy-parts/

http://www.amazon.com/s?ie=UTF8&ref...ary red congo blue&url=search-alias=aps&ajr=3

 

The goggles just block some colours, they won't let you see infrared. At night you will just see blackness.

 

but what you can say about this video

http://www.youtube.com/watch?v=-ikNaWJ3IDE

 

but what you can say about this video

http://www.youtube.com/watch?v=-ikNaWJ3IDE

"Pure hoax"
You can't see IR, no filter will change that.
<ed>Digital cameras / camcorders can see infrared but there is no need for the gels</ed>

 

The human eye only sees red to dark blue.

If the infrared could excite a substance to emit light in the red to dark blue spectrum then your eye could see 'infrared'. But only if it is first changed to a freq. in the red to dark blue range. A filter will not do this. A filter will remove a freq from the spectrum passing through, but nothing else. You need a substance which will absorb infrared and 're-radiate' at a visible wavelength. Something similar to the phosphors inside fluorescent light bulbs. They absorb UV light created by electrically excited mercury ions and re-radiate visible wavelengths.

 

I have seen magic on YouTube, but yet I still don't believe in magic. Do you believe in magic?

Night vision does exist in several forms, but not like this (as has been stated). A simple CCD camera (digital cameras or camcorders) see deeper into the infrared than humans. Simple light sources, such as IR LEDs, will illuminate the scene and you won't see a thing. Far as I know, all night vision is done electronically.