Cameras and IR illumination

**agniusm** · 01-22-2007, 11:01 AM

Hi folks. I have bought 1.3mp usb webcam. Now im looking for sort of IR illumination but stuck. Usual LED's i think will not provide enough illumination, basicaly will be limited to 50m or so i think with huge IR lamp. Perhaps i'm wrong. Now those new 7 class BMW.
I found these LED's: http://uk.farnell.com/jsp/search2/br...questid=688798
The new BMW: http://www.youtube.com/watch?v=-3uaTyNWcBI
Does anyone know indeep about night vision, IR illumination etc.? Some information will be much appreciated, Thanx

**pate60** · 01-22-2007, 11:18 PM

search!!! look for night vision

**Genesisfactor** · 01-23-2007, 05:58 AM

if you need IR leds, i know nitemaxmax has some spares from his cameras. These are 15 LED arrays and they're top notch. But yeah, search. any Nitemax thread is just chalk full of information and people toying with it.

**agniusm** · 01-23-2007, 08:58 AM

Search is what i do first cause most i like to figure out things myself. Now i have CCD CCTV night cam with LED array but the image is crap at night. I figured that the BMW is using a thermal camera not som kind IR illumination,thats why the image is good but the price is good to. Anyway will see those Nitemax
Cheers

**Genesisfactor** · 01-23-2007, 10:39 AM

yeah, that's definitely thermal. IR will allow you to see anything, hot or cold, clearly. Thermal just hot. Its good for spotting mammals. but not as adept as seeing other things in detail

**im3crazy** · 01-23-2007, 11:39 AM

Originally Posted by agniusm

...Usual LED's i think will not provide enough illumination, basicaly will be limited to 50m or so i think with huge IR lamp.

Tough question. We use IR emmiters that provide about 175M with the highly sensitive cams we use. These emmitters paint about a 30M scene 130M out. Mostly for lights-out crawling at night, not effective above about 40KPH re stopping distance. The units are flat panels about 40x40, but I if you're looking for throw, you may have to install a set or more of IR "fog" lamps with reflectors designed for long IR wave and plenty of input wattage. Low end on these tend to be highly red-filtered halogens. There may be a gas discharge type lamp that's IR - Phillips or Bosch are probably the best sources.

Considering the rapidly dropping consumer cost for night-vision and the move away from active emmiters by MOD, you might get older but highly useful military surplus cheap.
Cheers.

**agniusm** · 01-23-2007, 02:12 PM

Quote:
Originally Posted by agniusm View Post
...Usual LED's i think will not provide enough illumination, basicaly will be limited to 50m or so i think with huge IR lamp.
Tough question. We use IR emmiters that provide about 175M with the highly sensitive cams we use. These emmitters paint about a 30M scene 130M out. Mostly for lights-out crawling at night, not effective above about 40KPH re stopping distance. The units are flat panels about 40x40, but I if you're looking for throw, you may have to install a set or more of IR "fog" lamps with reflectors designed for long IR wave and plenty of input wattage. Low end on these tend to be highly red-filtered halogens. There may be a gas discharge type lamp that's IR - Phillips or Bosch are probably the best sources.

Considering the rapidly dropping consumer cost for night-vision and the move away from active emmiters by MOD, you might get older but highly useful military surplus cheap.
Cheers.

Thanx for the info. Im not an expert, but i like to make things my self cause it gives me alot of joy. I found some stuff and i would like your opinion im3crazy
those are IR emitters:

http://www.epigap-berlin.com/index.php?id=40&L=1

the ELJ-870-629 and ELJ-940-629

http://www.roithner-laser.com/LED_HP_multi_chip.html

LED870-66-60 and the last one:
http://uk.farnell.com/jsp/endecaSear...ZQ?SKU=1242051
SFH4230

What do you think about using these for illumination?

They are with different wavelength. what wavelength is best for illumination?
I would like to build some kind o array to fit as foglights.
Thanx again