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IR Illuminator floodlight
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| toast68 |
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Posts: 8
Joined: 08 Nov 2008
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Posted: Mon Dec 29, 2008 3:59 pm
Post subject: IR Illuminator floodlight
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Can someone recommend an IR illuminator that acts more as a floodlight than a spot light? I have a Sony SNC-RZ25N mounted on my house. I would like to light up my front yard with an IR illuminator so when I spin the camera, everything is covered. I bought a IR Illuminator off EBay (cheapo) and it works great as a spot light. I can light up my neighbors house like a christmas tree. When I try to hit my front yard with it, it only lights up a small area.
The area to cover is 90 feet wide and 100 feet deep. I could get a few illuminators and fan them out but I'd rather use a single one.
Thanks.
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| griffonsystems |
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Posts: 437
Joined: 15 Aug 2005
Location: chicago
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Posted: Mon Dec 29, 2008 9:16 pm
Post subject:
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raytec (raymax) but they arent cheap
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| kensplace |
Moderator
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Posts: 1036
Joined: 30 May 2006
Location: UK
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Posted: Mon Dec 29, 2008 9:58 pm
Post subject:
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Derwent also does a good range of IR products, again not cheap (unless you can pick one up second hand) but you get what you pay for with their IR..
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| Sawbones |
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Posts: 255
Joined: 24 Aug 2008
Location: Below the Mason Dixon
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Posted: Wed Dec 31, 2008 7:47 am
Post subject:
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I did an entire review on a bunch of Ebay illuminators:
http://www.cctvforum.com/viewtopic.php?t=13935
In short, the Raytec provides the most light... but at a very steep price. The poor-man's choice in that list is that long, silver-colored tubular, lens-ended Ebay illuminator.
I'm using those on both sides of my home right now, and not only are they adjustable (in terms of beam spread), but the light they provide is very even; no hot-spots. They're also waterproof, and you can get higher-powered versions.
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| toast68 |
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Posts: 8
Joined: 08 Nov 2008
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Posted: Wed Dec 31, 2008 9:15 am
Post subject: excellent comparison
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sawbones:
Thats exactly what I was looking for. Thanks for taking the time to do that testing.
I'd consider myself to be a 'hobbiest' at this stuff. I have the Sony SNC-RZ25N up at my house. I want to add some fixed cameras and now know that getting cameras with the IR's in the dome is a bad choice. I found some vandal resistant cameras with the IRs around the lens but no dome. I think I will be going with those. The IR's from those should also help the Sony as they will be overlapping in coverage. I will probably get a few IR's to supplement the coverage.
As a hobbiest, I have no intention of spending $2500 on an IR illuminator. It looks like 4 or 5 of the EBay models will work just fine.
Thanks again
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| Troy Lewis |
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Posts: 7
Joined: 07 Jan 2009
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Posted: Wed Jan 07, 2009 11:47 pm
Post subject:
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The best way is to build your own. I built one with 284 leds and put a fog light lens over it. It does real good. You can also put the leds on a cruve so that the light spreads out more. I am getting ready to put camera back online. I use it to watch the deer in the woods. Last camers went out so I bought me a Panasonic CP-484 with a housing that has a heater and blower. You can find ir leds cheap. I got 1000 for $40. On my new set up I also built it so that the light only comes on at night. All you need to do this is a Photoresistor and relay. I also have a 12v fan in the light to keep it cool.
Troy
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| DVR MAN |
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Posts: 84
Joined: 28 Dec 2007
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Posted: Sat Feb 28, 2009 2:25 pm
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I bought one of the 140 LED models. I milled 2 slots in the bottom to allow fan air to circulate from the rear to the front around the LEDs. I have a foam block in the center of the lower case against the circuit board to separate the airflow, and bug screens over the slots. I also added a 25 watt rheostat at the power supply to adj. illumination. I have not installed the thing yet. I will post how well/bad it does.
Last edited by DVR MAN on Sun Mar 01, 2009 6:44 am; edited 1 time in total
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| rory |
Moderator & Founding Member
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Posts: 14350
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Sun Mar 01, 2009 2:34 am
Post subject:
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Extreme CCTV has flood IRs but they are not cheap.
Examples:
Given that average wide angle camera is at least 70+ degrees width. (eg. 4mm)
Also note that with IR the lower you go and higher you point the IR the better, and if it has a reflective surface close to the max IR distance it will also help alot.
EX82 - 4mm lens, 30 degree IR, reflective surfaces up to and at 90' approx. Pitch dark.
EX82 solarized image - shows no reflective area at up to its max IR distance of approx 75-100'. hence the small spot light effect on that large back yard.
Eg. Flood. Pitch Dark with UF500
Another example:
_________________
Bahamas Security - Bahamas Real Estate - Hilltop Ocean Front Acre w/ Secluded Cove
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| macvan |
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Posts: 5
Joined: 26 Mar 2009
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Posted: Thu Mar 26, 2009 6:36 pm
Post subject:
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this is a common problem with illuminators. we have used multiple illuminators that create a scatter effect and tend to diminish the flashlight effect that you speak of
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| Sawbones |
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Posts: 255
Joined: 24 Aug 2008
Location: Below the Mason Dixon
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Posted: Thu Mar 26, 2009 8:00 pm
Post subject:
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Sometimes you're simply better off with multiple illuminators. Not only does it give you better coverage, but you're not completely blind if one of them goes Tango-Uniform.
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