Infrared IR Surveillance Tutorial

Author: John Honovich, Published on Jan 12, 2013

Almost all surveillance cameras perform worse in low light than they do in the day time. One of the most common techniques to overcome this is to add infrared (IR) illumination. However, adding IR has its own tradeoffs, with several options available. This tutorial explains them including:

2017 State of IR

  • **** ***** ** **
  • ** ******
  • ******* **. ********* **
  • ** **. ***** ***** ************
  • *** ****** ****** 
  • ** *** **********
  • ** **************
  • ***** ** ************ / ********* ******
  • ************ ***** ******
  • ************ / ************ ******
  • ******** ** *********** ********
  • ** *** ********* *********
  • ********** ** ** *** ** ** ************

***** *** ******* *** ****** ** ********** ** ** ****:

  • ********** ** **********:***** ********** ** **** ** ** * **** *******, ** is *** ********* ** *********** ***** ************ ****, ** *** end *** **** *** ******* *** ******** **** *******.
  • ****** ******:** *** ****, ************ ****** ** ~***/***' **** ********** "****." Now, **** ****** *** **** ** ********** ***', ***', ***', and ****** ***** ****.
  • ***** **:**** ********** ** ******* **** **** **** *** ************, ***** has ******* ***** *** ** ****/****/***** ***********. ***, **** ************* are ****** ****** ******** ****** *** ************, ***** **** ****** range, **** *,***' *** ********.

** ****** ***** ****** ** ******** **** **** *** ******.

Infrared ******

** ** ***** **** ******* *** '***' *** ****** ******. Humans *** ** *** *** ** ***** ***** ********, ******** to ** '*******' *****. *******, ************ ******* *** ********* '***' ******* light ** **** ** ***** **** ***** **** ** ************ typically ** ***** ** *****, *********** ** *** ***** *****.

ir

Visible **. ********* ** (*** **. *****)

**** ******** ************ **** ** ************ *** *** ******* ***** wavelength. *** **** **** *** ***** ************ *** ****** ******* to *** ***** ***, ******** * *******/******* ****, **** ** on ***** ********. **** **** ****** ******** **** ** **** ***, ***** devices **** ** ******* ******* (*** **** ***** *******) *** it ****** ** ****/****** ***** ****.

***** ************ *** **** **** ******* ** ******, **** **** a **** ***** **** ******* **** ***** ** *** ******, making **** **** ****** **** ****** ************ ** ********. *******, 940nm ** **** ******, ********* **** ***** **** *** ******** of ***** ***** ***** *** **** *****. ************, **** *** more *********, *** **** **** **** **** *****.

*******, **** ****** ********** ************ (****** *** *****) *** *********, ***** are ********** ********* ** *** ***** ***. *******, ***** *********** are ***** *** ******** **** ******* *** '***', *** ***** are **** ****** **** *****, ****** **** **** ****** **** in **********.

What ***** *****/******* ***** ************?

***** ****** ******* ***** ** *** ***** **** ******* *** light ******, ********* ** *** **** *******, *** ******** *******:

  • **** **********:***** ***** ***** ******* * ********** ****** ****** *** **** it ******, ** ** ****** *********** (*****) ** *** *********** at *** (*****) ** *** ***** ***. **** ***** **** camera ********* *** **** **** ******* ** *****, ****** **** more ********* *** ********* ** ****** *** ******.
  • **** ***** *********:************, ******** **** *** ********** ** ***** ********* ****** ** white *****.**** ************** *********** ******** ******** ****** *** **, *** **** **** ** aimed/shielded, ***.
  • ****** **********:*******, ********** *** ******** ********* *** ****** **** ** ** used, ** **** *** ****** **** ** ******* *** ******** design ** * ********.

******* ** ***** *******, ***** ***** ** ****** **** ****** in ********* ************.

Cut ****** ******

*** ******** ** ************ ******* *** ** *** *******. **** small ********* ***** * ****** ** ***** ** *** ******'* imager ****** *** ***, *** ******* ** ** ***** (*** our *** / ***** ****** ********).

ir cut

*** *** ****** ** ********* ****** *** *** ** ****** ** light, ** ** *** ********** *****/***** ******* ******, **** ** *** ******* **** ***** *** ************ **** in *** ***** *****:

** *****, *** ****** ** ******* ** ***** ** ************ or ******* ** ***** ** ***** *** ******, ********* ******** images.

**** ***/***** ******* **** ** **** **** ******** ************, ** ***** **** ****** (****** rare ** ****) ******* * ***** ** *** ******, ******** all ******** *****.

IR *** ***********

**** ****** ************* **** *** ****** ** ** **** ** an ********* ** ***** ***********, **** ** '** ****** *** 24 **** *** ** ********** **** *** *, ***.', *** in *******, ******* ** **** *** ******** ** **** *** little impact ** **** ***** ***********, ** ***** *** **** ********* sizes/styles ** ** ***.

***** *** *** ***** ********** ** ** **** ** ************, simply ***** *** *****:

  • *******, ***** *****:**** ********** ** ******* *** **** *** **** ********** ** illuminators *** * ****** ******** ** ******* **** ** *** up ** ******* *****. ***** **** *** ******* (*** *** always) **** *********. 
  • ******, ****** *****:**** ***** ** ******* *** **** ** ************ *** * smaller ******** ** ******, **** ******** ****. 

**** **** ****** **** ** *** **** **** ********* ********** higher *******, *** ******** **** **** ******** *** ****** *****. However, ** *** ***** ** **** ***** **** **** ** not ****** *** ****, **** **** *** ********** ** ******* using ***** ****, *** **** ***** ****** ****. ****** ***** testing ** *** **** ******** *** ** ********* ** ************ quality.

IR **** **************

*** ** ************ **** *** *** **************:

  • ***** ** ************:*** ***** ** **** ** ******* **** *** ** *********** is ********* ** *****, *.*., **°, **°, **°, ***..
  • ************ *****:*** ******** ***** ** ** *********** *** '***** **', ********* specified ** ******/****, ** * ***** *********, **** ** ****/**°.

*******, ******* ** ***** ************** *** ** ******* **********, ** ***** specifications *** ********** **** ** ** *************, ***** ** ******* below.

Angle ** ************/******** *******

** *** *****, ***** ** ************ ***** *** ** *******, ** it ** * ****** *************** ******. *** *** ***** **** is ******** ** *** ********* ** *** ****** ** *** beamwidth ** *** ** ***********. ** *** ** *********** ** too ****, ******** ** ****** *** ******* ******** ********** *******. However, ** ** ** *** ******, *** ***** ** *** image *** **** *** * ******* ** ******* ** *** center. *** ***** ***** ***** ****:

***** **** ************* ** **** ***** ******** ** ************ ** illuminators (******, ********,*****, ***.), ******* **** ******** ***** **** ****** *** ***** ** ************ ************** **** erroneous.

**** **** ********* ** ********* ********* **** ** ** ************, not ********** ** *******, ** ** ** ******* * ***** camera's *********** **** ********** *** ****** ***** ** ****. *******, this ** ***** *****, ** ****, **** ****** ******** / dark ***** ****** ** ********** ** *******.

*************, **** ***** **** **** ***** *** **** ************ ** integrated ** *******, ***** **** ****** **** **** ***** ******** devices ** *** *****.

Illumination *****

************ ***** ************** *** **** **** *********** **** *****, ** manufacturers ********* ********* ***** ******'* ************. ***** *** *** *** factors ********* ********:

******* ** ********

***** ***** ****** ******* *** ***** ******** ** ******* ** illumination *** ******** ********* **********. *******, ** **** ******** ** parking ****, ******, ***. **** ******* ******** ** ******* *** everything **** ***** *****, **** ******* * **** ****** ***** at *** **** ******** ** *******.

*************, **** ** *********** / ****** ************ **** ***** ******* indoors ** * *** **** **** * ***** ****. **** is *** ******** **** **** ********.

************ *********

***** ***** *** ** ******** ************** *** *** ** ** tested, ************* *** ****** ***** *** ***** ** ***** ***** ************ ******* *** ******, ******* ** ********. **** ***** **** *** ****** ** ***** ** *** specified ******* ***** *** ** **** ****** ** *** **** a ***** ******* ** * ******, ** ****. ***** *** *** certainly******* *** ****** ** ** ************ (****'* ***), **** ************* ********* ** *** ******* ******** ****** ****** ******.

******* ** ***** ******, ** *** ****, ** ************ ********** only *********-**% ** ***** ********* *****. *******, ** *** ***** ** *** **** *-* *****, IR ***** ************** **** **** **** ****** ** ****** ***********, with **** ******* ******* ********* ***** *****. ******, ******, ** there ** ** ********* **** ** **** ** *** *******/************.

Spotlighting / ************ ******

***** *** ****** ** *** **** ** ************, **** **** you *** ** ******* ****** *** *** ** *** **** sunlight. ******, **** ** * **** ****** ********* ******* **** IR ************.

** ************, ** ************ *** ********* ***** **** **********, **** a ****** ************ ********** ***** ***** ******, **** ** ******** space *** **** ************. *** ******** ** **** ** **** a ******* **** *** ***** ** *** ** ***********, ** becomes *********** ** *** ****** *****. **** ******* *******, **** facial ********, ********, ****, *** **** ********, **** ** **** example:

******* ** ****, ** ************, ********* **** **** '***** ** field'. ** * ******* ** *** ***** ** *** ******, they **** ** ***********. ** **** *** *** ***, ***** will *** ** ****** ** ** ********** *** ******. **** ** significantly **** *********** **** **** ******** ** ******* ********** ***** as ***** ********* ** **** **** **** **** ******* **.

*** **** ********* ***** ***** **** ******* ** *** ****** far ******* ***** ** **** *******. ** ** *********** ***** *** *** ****** ***** ** a **** *** ********* ** ***** ** ** ****** *** but ** *** ******* ** ** ****** ****, ** *** power ******* *** ****, *** ******* **** ** *** *********** and ****** ***.

Advanced ** *********** ********

** ***** ** ***** ************ ***** *********** ************ ********, ************* have ********* "***** **" ******** ** ********** ** *******.

***** **

**** ********** ** ****** ****** **** ********** "********" ** "*****" IR ***** ******* ***** ** ******* ** *** ***** ** reduce ************. ****'* ** ******* ** **** ** **** / looks ****:

***** ** ********* ******** ** *** ** *** **********, ** a *********** ** ****:

  • ********* ** *****:**** ******* ****** ** *********** ***** ** ********** *** ******** in *** *****, ****** ******** ******** **** *** ******. *******, by ******** *** *****, *** ******** **** *** ******* **** in *** ***** **** ** *****-*******, **** ******* ****** ****.
  • ****** ****-********:**** *************' "***** **" ** *********** * ****** ****-******** (**) **** usual ** ****** ******** ** ********** *** ***** ***** ** the *****. ******* ********* ****** ** **** ****** ** ***** massive ******* ** ******** ***** ***** *********** **** **** ******** to *******. *** **** ***** **** ******** ** ************, **** adjustment ** *********.

*********** ******* ***** ******(*) * ***** ****** **** ** *********, and ********* ******** ********* ** *****, ** **** ************* ** not ******** *** ***** ***** ** *****.

**** **** **** ***** ******** ********* **** ** ** ***** into *** ****** *** *** *** ********** **** ******** ** illuminators, ** *** ********** ******** ** ****** ** ****** *** adjust ** ********* ** ********* **********.

********* ***** **********

************* **** **** ***** ********* ***** *********** ** ********** ** cameras. **** ***** **** ******* ****** ** ** **** ******* match *** ******'* ***** ** ****, ****** ***** ******** **** of ****, ********* *****, ** ***** * ********* **** ** change ************ *****.

**** *** ** **** ** **** ***** *** *** ********** IR ******, **** ** *** ****** ***** ** **** **** video:

IR ******* ********* ******

** *******, ********** ** ******* ****** ** ***** ********* *********/******* bandwidth ****** ******** ** ******* ***-** ******, ***** *** ***** IR ******* *** ***** ******* ** ********* **** (*** *** ****** *** (******* ***** *********) *****).

*** *******, ** ************ ** *** ***** ****, ********** ** ****** ********* ********* ** ** ******* ** ~176% ** *****, ******** ** ****** ***% ** ***/***** ******, seen *****.

*******, *** ***** *********** *****:

  • *** ** ************ ***** ** ***** *** ***** *****. ** certain ***** *** ***** ****, *** ****** ** ****** ** turn ** *** **** ******* ** ******** ***** *****, ***** requiring **** ********* ***********.
  • ** ****** ****** ********* *********** ** *** *****, **** ***/*** *** ** *** ****. *** ***** *** ***** **** *** ****** ****** ******* as *** ***** ** ********* ** ****** ***** **** ** meaningful *******.

Integrated ** ** *** ** ** ************

**** ***** **, *** *********** ******* *** ********* - ******* with ** **** ********** **** ***** ******** *** ********** ** illuminators **** *** ******* **** ** **** ** *******. ** the ****, **** *** ** ******* ******* ********** ** **** so **** **** ****** ** *** ** ************ ** **** wanted **. ***, ****** *** ** ****** ***** **** ********** IR ****** *******.

**** *** ********** ** *******

  • ***** ****: ****/**** ** *** ****** ****** ******* ******* ********** **, ****** them * **** **** ********* ****** **** * ***-** ****** with ***** ***********.
  • ******* ************:******* *** ** ** ***** **, ***** ** ** ********** equipment to *******.
  • ******* ********: ********** ** ******* *** ********* ******* ** ******** ***.*** ***** over ********, ** ** **** ********* ***.***. ******** ************ ********* require ******** *** *******, ***, ** **** ***** *****.
  • ******** ********: ****** *** ******* ***** ***** / ******** ** *** ********* beamwidth **********, ********* *** ******** **** ***-** ** ************.

**** *** ********** ** *******

  • ******* ***** (****** ********): ****** ********** ** ******* **** ****** ****** **** ****** more ******, **** **** ******** ***' ** ****, *** ***** long ***** ************ (****'+), ********** ************ *** ***** ********.
  • *** / ****** ******: ********** ** ******* *** ******* ******* ** *******, ***** ****/***** close ** ** **** *** **** ** *** ******, ********* the ***** ** ****. ** **** ** * *******, * standalone *********** **** ** ****.

******* ** *** ********** ** *******'* ***** ****** *** ******** features, ** ** ************ **** ********* ** ******* ***-** ** ************. The ******** ****** *** ********** ************ *** ***** **** ******** and ********* **, ******** ***** *** **** ** ********** ** cameras, ****** ** ****** **** **** ******** ** *******.

IR ** *** **** ****** **********

** *** **** ****** **********, ** ***** ** ***** *** ******* ***** ******* **, shown ** * *** **** (*** *****). ***** ****, ** can ********* **** ***** ****** ** **** ** ****** *** whether * ***** ******'* ** **** **** ***** *** ******** target. **********, ** *** ****** ** **** ****** **** *** camera's ******* ** *****, ** ****** ****** ** ************ ***** or ********* ***** ********/***** ** ********.*** **** ******** ** *** ********** ****.

Test **** *********

**** **** * ********* **** ***!

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

DMP Intrusion Tested (XR Series) on Mar 09, 2017
DMP is a major provider of intrusion systems, but lacks the global brand recognition of some of its rivals (such as Bosch, Honeywell, DSC, or...
SimpliSafe Camera Tested on Mar 07, 2017
SimpliSafe ia one of the most controversial companies in the industry, as they have become the symbol of the DIY threat to traditional alarm...
TVI 4.0 Doubles HD Analog Bandwidth on Mar 05, 2017
HD analog's move up market continues. Starting a few years ago at just 720p, HD analog is now poised for 4K and beyond. Techpoint, the company...
Uniview NVR Tested on Mar 02, 2017
Uniview, China's self proclaimed #3 video surveillance manufacturer behind Hikvision and Dahua, is ramping up its international sales efforts. In...
Avigilon Shifts Strategy To Maximizing Profitability (Q4 2016 Results) on Mar 01, 2017
Avigilon had previously been known for big spending, hiring a large sales force and throwing lavish partner parties at tradeshows like ISC West....
Vivotek 3MP 180 Wall Mount Camera Tested on Feb 28, 2017
Purpose-built wall mount panoramics have become an attractive niche to cover entranceways. In 2013, we bought and tested Vivotek's 1MP...
Dahua 4K HD Analog Cameras Announced on Feb 23, 2017
HD analog has been gaining popularity (even if Axis hopes otherwise). Last year, HD analog's max resolution doubled from 1080p to 4MP (see our 4MP...
Uniview (UNV) IP Cameras Tested on Feb 22, 2017
"We're #3," in China says Uniview (UNV). While the company significantly trails Hikvision and Dahua in total sales, one notable difference is that...
Glass Doors and Access Control Tutorial on Feb 22, 2017
The biggest challenge for many access control systems are glass doors. Here's what happens when a maglock is improperly installed to an existing...
Hikvision Ezviz Mini 360 Plus - $80 Autotracking Camera Tested on Feb 21, 2017
Autotracking, integrated IR, local storage, full HD, cloud access: $80. That is the claim of Hikvision EZVIZ's new Mini 360 Plus. But for this...

Most Recent Industry Reports

Axis Camera Vulnerabilities From Google Researcher Analyzed on Mar 23, 2017
A Google security researcher has reported 6 vulnerabilities for Axis cameras, affecting multiple models and firmware versions. In this report, we...
OpenEye Takes Aim At Exacq on Mar 23, 2017
First Milestone targeted Exacq with a takeover offer, and now OpenEye is gunning for them with an offer to swap out Exacq for their cloud-managed...
Lock Keyways For Access Control Guide on Mar 23, 2017
Lock keyways can be the difference between a lock working or not. Understanding keyways is important for access control. Indeed, a member recently...
Broken Browser Support for Video Surveillance on Mar 22, 2017
Modern web browsers have left the security industry behind. Current Chrome, Firefox, and Microsoft Edge browsers do not support NPAPI plugins,...
ADI Favorability Results on Mar 22, 2017
150 North American integrators provided feedback on 6 distributors, and why they do (or do not do) business with ADI. ADI is clearly a big name in...
1 Million Dahua Devices Exposed To Backdoor on Mar 22, 2017
Statistics show that 1 million Dahua devices are publicly exposed and vulnerable to the Dahua backdoor. Despite this, Dahua has downplayed the...
Hikvision Hires Crisis Communication Writer on Mar 21, 2017
Hikvision has hired a crisis communication writer as the company ramps up its efforts to deal with the 'crisis' it feels it is facing. 'Crisis...
Glass Break Sensor Tutorial on Mar 21, 2017
Burglars often break glass windows to get into a house. Using glass break detectors in conjunction with alarm contacts is a good way to protect the...
Unikey Smart Phone Access Control Platform on Mar 21, 2017
More and more people carry smart phones. Many think this could replace the conventional key or card for access control. However, using a phone...
Hikvision Attacks IPVM on Mar 20, 2017
Hikvision has attacked IPVM repeatedly over the last month, both in the international press and in its dealer communications. Attacks Listed On...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact