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-   -   Night Vision vs Infra Red (http://www.firearmstalk.com/forums/f58/night-vision-vs-infra-red-1115/)

MrM4A1 07-06-2007 02:42 PM

Night Vision vs Infra Red
 
What is the difference between the Infra Red night vision and the other type of night vision that uses heat? Does one require special chemicals to function? Can you get thermal vision devices for public use? What is the cost difference between the two?

Thanks

DWARREN123 07-07-2007 01:23 PM

IR uses a beam of light to see by (active type), Some thermal just picks up the heat signature (passive) and NOD's use passive collections of any type of light.
This is basic, you will find hybrids and some special other types.

black bear 84 07-08-2007 03:01 PM

I have an IR Israely surplus that needs a # 1 battery to work, anybody knows where I can get the battery to put my IR back in business?

http://img.photobucket.com/albums/v1...4/goggles2.jpg

http://img.photobucket.com/albums/v1...4/S5300050.jpg

DWARREN123 07-08-2007 03:14 PM

Maybe a specialty battery store or military surplus. Looks like it may be hard to fine.

wilddawg1 11-13-2010 10:27 AM

night vision is just what you said
 
Quote:

Originally Posted by DWARREN123 (Post 4095)
Maybe a specialty battery store or military surplus. Looks like it may be hard to fine.

night vision is just what you called it thermal imaging is totaly diffrent dawg as it works off a persons or things heat signature and costs about a hundred times more. you can get a nvrs for as low as 400 bucks thermal starts around 10k do the math. what are you looking for it to do for you.

c3shooter 11-14-2010 01:52 AM

As Dwarren said- IR goes back to late WW II, uses an IR light source to illuminate target. Also means YOU can be seen by anyone else with an IR scope. Light Amplification (Vietnam era Starlight scope) amplifies existing light, like moonlight, starlight, etc. Useless in a place with no light (tunnel). Passive IR or Thermal Imaging- picks up infrared light given off from targets- body heat, engine heat, etc. Watch the TV night pursuits with a helicopter using FLIR- Forward Looking Infrared. Hot things look bright.

For the #1 Battery, try Batteries Plus- 1.800.677.8278

Used to use a device called an infrared metascope- damned thing used a high voltage battery unlike anything else in the world. Happily, all of you US taxpayers bought those for me.

AusLach 11-14-2010 01:58 AM

Kinda cute don't ya think, being three and a bit years old this thread would be starting pre-school next year!! :D

c3shooter 11-14-2010 02:18 AM

Whoops! Gotta start reading those dates! :o

jpattersonnh 11-15-2010 12:43 PM

Quote:

Originally Posted by AusLach (Post 385962)
Kinda cute don't ya think, being three and a bit years old this thread would be starting pre-school next year!! :D

At least it is toilet trained. ;)


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