Friday, May 25, 2018

Can infra red heat lamps be used as a light source for infra red security cameras?

January 22, 2013 by admin  
Filed under CCTV Equipment

That depends on the type of infra red. I’m not an expert but I think you may be confusing infra red imaging and thermal imaging.

At least some security cameras definitely use infrared source to ‘light up’ areas being monitored, as anybody up to no good could not tell they are clearly visible to infra red cameras.

The imager used in most security cameras is sensitive to infrared (IR) light. Devices known as "IR illuminators" are used to allow CCTV cameras to see where there is not an adequate amount of visible light. Some cameras have IR illuminators built into them, and there are also IR illuminators available as separate units that cover larger areas.

One seller of camera equipment that has IR illuminators is Super Circuits http://www.supercircuits.com

Comments

2 Responses to “Can infra red heat lamps be used as a light source for infra red security cameras?”
  1. (?)Mistress Bekki says:

    Infrared security cameras don’t need the subject to be illuminated. Hot objects (like bodies) radiate infrared. So the IR camera (or night vision goggles) work best when the background is cold, so the hot object sticks out clearly. They work worst when the background is the same temperature as the object. This is called thermal crossover, and it can make life hard if you are looking for people in the desert sometimes.

    So by heating up the room, you are degrading the quality of your IR sensor.
    References :

  2. silvaconsultants says:

    The imager used in most security cameras is sensitive to infrared (IR) light. Devices known as "IR illuminators" are used to allow CCTV cameras to see where there is not an adequate amount of visible light. Some cameras have IR illuminators built into them, and there are also IR illuminators available as separate units that cover larger areas.

    The early IR illuminators actually used a type of incandescent bulb, so I am thinking that a regular infrared heat lamp could be used as an illuminator, although it probably wouldn’t be very efficient. Most modern IR illuminators use a type of light emitting diode (LED) as they operate cooler and are more efficient.

    One seller of camera equipment that has IR illuminators is Super Circuits http://www.supercircuits.com
    References :

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