Spot the difference: OptimizedIR and IR

July 24, 2018
Sometimes an innovation comes by combining two existing technologies. For instance, if you take a PTZ camera and add heatpipes, which divert heat away from the sensitive sensors and LEDs, new possibilities open up. Now, the infra-red (IR) LEDs that generate heat can be kept closer to the sensor, allowing LEDs to be built into the camera, which brings with it a variety of benefits.

The benefits of IR surveillance

First, let’s delve into the benefits of IR in general. Effective and reliable video surveillance in an environment with complete darkness can be tricky. This is because, the lower the light, the fewer the number of photons are able to reach the camera sensor. This can sometimes pose problems, as the photons are needed for cameras to create images with forensic value.


There are currently a number of solutions that enable a user to “see in the dark”, such as thermal cameras, which don’t need any additional light source. However, since they detect heat radiation, thermal cameras are able to identify the presence of people, vehicles or animals that give off heat, but don’t provide detailed images of the object. To secure forensic details, in an image captured in complete darkness, visual cameras are the only option.


IR enables surveillance in areas where bright lights are not possible, practical or even allowed. An example could be night time traffic surveillance where lights could distract drivers, causing accidents. Although solutions with IR illumination already show a lot of benefits, Axis keeps exploring ways to develop existing technologies that will benefit our customers.


Leveling up with OptimizedIR

As the name indicates, AXIS OptimizedIR is “optimized” for specific cameras and situations. In order to understand how it is “optimized”, it is useful to, once again, look at the heatpipes technology. Engineers at Axis realized that by using heatpipes to conduct LED-generated heat away from both the sensor and the LEDs, the former could produce better image quality. In addition, the LED’s lifetime increased, and they could even be placed within the dome to offer discreet surveillance.


In some cameras, the “optimized” covers the possibility to individually adjust the intensity of the integrated LEDs in order to avoid reflections when a camera is installed in a corner or close to a wall. This can be done both automatically, by the camera, or manually, in the web interface by an operator.


While some features of OptimizedIR are tailored to specific cameras and circumstances, others are always applicable: OptimizedIR is based on power-efficient LEDs with minimal heat dissipation. Thanks to the illumination being concentrated where it’s needed, the power usage can be kept relatively low. Additionally, they support PoE which means that no extra cables are needed.


With technology constantly evolving, it is good to keep in mind that we are constantly optimizing OptimizedIR. This means that new improvements and functions will continue to be added to strengthen our offering.

More about
Madeleine Eibrand
For further information, please contact: Madeleine Eibrand, Communications Specialist, Axis Communications
Phone: +46 46 272 18 00