Seeing in the dark — Infrared Security Cameras

If you need to capture security video in the dark, you need an infrared security camera. Infrared security cameras have advantages and disadvantages that must be considered when designing a security system.

Although most security consultants are familiar with an infrared security cameras single drawback: the capture in black and white, many new security personnel do not understand the advantages of using an infrared security camera or when to use one in a security setup.

An infrared security camera has the ability to capture video in conditions where other cameras cannot capture anything. Faced between having black and white video is better than having none.

Configuring a CCTV setup, has to account for variables outside your control. Investing thousands of dollars into state of the art camera systems that can be disabled by simply cutting power to a few key lighting systems that were taken for granted, can be a major oversight. Installing a few cameras in your setup that can still function without lighting is essential. Also, for cameras that will be used outside, infrared security cameras are still the most widely preferred option out there.

Infrared security cameras (or IR security cameras) are based upon sensors that pick up infrared radiation. Infrared radiation is electromagnetic radiation with a wavelength longer than visible light but shorter than a microwave. The infrared spectrum is the wavelength of light beyond what a human eye can see that are emitted by heat. Heat seeking missiles, night vision glasses, many wireless communications, weather forecasting, and many telescopes use infrared or thermal imaging. Because heat emanates in complete darkness, an infrared security camera has many uses in a security setup.

When selecting a infrared security camera it is helpful to know the location where you will be installing it. Infrared light sensors works differently than cameras which work well in ambient light. You will need a light with larger and/or more numerous bulbs if the area you would like to capture is farther away.

An infrared security camera can be very sensitive, which is why it is important to know where you will use it before you decide upon a model. Many people often assume that more infrared light bulbs will make a better picture, but often when a infrared security camera is used inside the amount of infrared light produced can reflect off of hard surfaces and wash out the infrared sensor. Some infrared reflective surfaces include anything flat and made of glass or metal (such as doors, mirrors, or windows) or even some “glossy” style interior paints.

In general, infrared security cameras have a specific application in a security system setup: to see in total darkness and thus be a failsafe to your other devices. For more infrared security cameras please see www.security-camera-warehouse.com