Posted by admin | Posted in Digital Cameras | Posted on 21-11-2009
Tags: camera, ccd, cctv, day, hardware, lasers, science, security
Infrared Ccd Cctv
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B24 CCTV 24 IR Infrared Dome Camera SHARP CCD $21.99 |
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AUDIO Infrared Detector Type Camouflage CCD Camera CCTV $45.05 |
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CCTV Outdoor 48 Infrared CCD Colour Camera SONY 1/3″ $49.99 |
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48LED Open air Infrared Security CCTV Color CCD Camera $9.99 |
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IR 265ft Sony CCD Infrared DVR Camera CCTV IR 520TVL $78.95 |
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600TVL IR 265ft Sony CCD Infrared Color DVR Camera CCTV $94.95 |
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outdoor infrared Bullet Security CCTV Color Camera CCD $52.99 |
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kiP111 Waterproof CCTV 48 LED InfraRed Color CCD Camera $49.99 |
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P56 Wire Outdoor 36LED Infrared CCTV CCD Color Camera $43.99 |
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Security Infrared 1/4 Sharp 420TVL CCD CCTV Dome Camera $29.99 |
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Security Infrared 77LEDs 480TVL CCD Outdoor CCTV Camera $89.99 |
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Security Infrared 77LEDs 420TVL CCD Outdoor CCTV Camera $75.99 |
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Security Wire 12LEDs Sharp CCD Infrared CCTV Camera $39.99 |
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48LED Open air Infrared Security CCTV Color CCD Camera $9.99 |
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kiP148 SONY 1/3″CCD 48 LEDs Infrared Colour CCTV Camera $64.99 |
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Sharp 1/3″ Super HAD CCD Infrared 130F Dome CCTV Camera $0.99 |
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Sharp 1/3″ Super HAD CCD Infrared 65FT Dome CCTV Camera $0.99 |
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Sharp1/3 CCD 420TVL 24IR Infrared 75FT Dome CCTV Camera $0.99 |
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Sharp1/3 CCD 420TVL 24IR Infrared 75FT Dome CCTV Camera $0.99 |
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Sharp1/3 CCD 420TVL 48IR Infrared 130F Dome CCTV Camera $0.99 |
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Sharp 1/3″ Super HAD CCD Infrared 75FT Dome CCTV Camera $0.99 |
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Sharp1/3 CCD 420TVL 24IR Infrared 75FT Dome CCTV Camera $0.99 |
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Sharp1/3 CCD 420TVL 24IR Infrared 75FT Dome CCTV Camera $0.99 |
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Sharp1/3 CCD 420TVL 48IR Infrared 130F Dome CCTV Camera $0.99 |
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kiP67 Wired Sharp CCD Infrared Dome CCTV Color Camera $33.99 |
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kiP47 Wire InfraRed CCD Dome Color Camera CCTV Security $33.99 |
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kiP56 Wire Outdoor 36LED Infrared CCTV CCD Color Camera $43.99 |
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1/3″ SONY CCD Dome Infrared Camera 3.6mm 24 LED CCTV N6 $35.98 |
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CCD Infrared Night Vision Water Resistant CCTV Camera $35.82 |
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IR 265ft Sony CCD Infrared DVR Camera CCTV IR 560TVL $95.95 |
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VideoSecu security wire power video cable 500 ft spool RG59/18/2 siamese cable RG59 18 guage for CCTV home security surveillance camera CBS500B 1F2 $59.99 This cable is VideoSecu brand. Please report to Amazon.com if you receive one without VideoSecu logo. RG-59 Siamese Coax cable is the professional’s choice for CCTV systems. The RG-59 Siamese Coax provides both video and power by combining the RG-59 Coax with the 18/2 power, for a single cable pull. The RG59 Siamese constructions save time and money. |
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VideoSecu IR706 CCD Infrared Night Vision Video Security Camera for CCTV Surveillance Camera System Home Security Camera with 6mm Lens 16 Large IR LEDS $30.00 The Supra IR is an all-in-one, day/night camera that captures images in all lighting conditions. Complete with a built-in IR illuminator. This camera provides color images in bright lighting conditions, and automatically adjusts to black-and-white images when the light level drops. Even in complete darkness, the Supra IR provides clear and accurate images with the support of 16 extra large infrare… |
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1/3 SONY CCD IR Color Infrared CCTV Camera Outdoor with Free Camera Power Supply And 100ft Video Power Cable free surveillance DeCal IR40SKC 1OF $69.95 Infrared Lenses are special designed for use with Day/Night cameras. They eliminate focus shift in the night mode, especially in the presence of IR lighting. IR lenses’ employment of advanced optical designs and special glass, eliminates the shifts of focus point in Day and Night. Rays of light from both spectrums are focused onto the same focal plane, resulting in sharp images for IR cameras. The… |
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Infrared Camera Wide Angle YY_F25A530 1/3 Sony Superhad Color CCD DSP Waterproof Indoor/outdoor Infrared Illumination Nightvision 3.6mm Lens 5mm 30 Leds Camera Ip66 Silver (90 Degree Wide Viewing Angle) with Free Mounting Bracket $41.95 This Day/Night Vision Color Bullet camera can incredibility see 75 feet in total darkness. It has 30 high power Long life luminary with special wavelength Infrared LED. It also meet the IP-66 water and dust proof standard for outdoor and indoor special IR Led board can void cross-voltage input error(positive and negative end reverse) during installation. This camera employs 1/3″ SONY SuperHAD CC… |
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VideoSecu Outdoor Vandal Proof 1/3 Sony Super HAD CCD Night Vision Day Night Dome Camera with 28 Leds Infrared Free Security DeCal VD22K $63.95 VideoSecu Outdoor Vandal Proof 1/3″ Sony Super HAD CCD Night Vision Day Night Dome Camera with 28 Leds Infrared Free Security DeCal VD22K… |
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VideoSecu Color CCTV IR Day Night Infrared Camera CCD free surveillance DeCal 1NF $45.00 The Supra IR is an all-in-one, day/night camera that captures images in all lighting conditions, with super large built-in IR illuminator. The camera provides color images in bright lighting conditions, and automatically adjusts to black-and-white images when the light level drops. Even in complete darkness, the Supra IR provides clear, accurate images with the support of 16 supper large infrared … |
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New Mini Gadgets CCTV-Smoke Detector Spy Camera 420Line Sharp CCD Ensures Video CCTV-SMOKE420CONE $78.09 This is the latest in top of the line do it yourself surveilliance systems. Featuring a covert color Sony 1/3″ CCD this camera looks like a smoke detector and is designed to connect to your PC allowing you to turn your workstation into security central. Simply attach the device to your DVR card* and the crisp clean video from this device (or any of the other cameras in this line) will ensure tha… |
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New Mini Gadgets CCTV-420TVL Surveilliance Systems 420Line Sharp CCD Ensures Clear Video $62.09 This is the latest in top of the line do it yourself surveilliance systems. Featuring a color Sharp 1/4″ CCD this line of camera’s are designed to connect to your PC allowing you to turn your workstation into security central. Simply attach the device to your DVR card* and the crisp clean video from this device (or any of the other cameras in this line) will ensure that nothing slips past your w… |
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New Mini Gadgets CCTV-Smoke Detector Spy Camera 420Line Sharp CCD Ensures Clear Video CCTV-SMOKE420 $78.09 Featuring a covert color Sony 1/3″ CCD this camera looks like a smoke detector and is designed to connect to your PC allowing you to turn your workstation into security central. Simply attach the device to your DVR card* and the crisp clean video from this device (or any of the other cameras in this line) will ensure that nothing slips past your watchful eye. Best of all, since these units are d… |
Security Cameras that see in the dark
Humans have several great attributes, but seeing in the dark is not one of them. Human vision is limited to a small portion of the electromagnetic spectrum called visible light. It is possible for humans to see beyond this range by making use of equipment which allows us to capture non-visible sources of electromagnetic radiation known as infrared light.
Many CCTV cameras now have the ability to project infrared light using an array of LED illuminators. When this capability is combined with CCD sensors capable of recording the infrared light, you achieve what is reffered to as night vision.
CCTV security cameras with night vision capabilities allow you to see in total darkness. Many night vision cameras are capable of producing detailed video regardless of lighting conditions. When required, night vision security cameras automatically switch to infrared mode without the need of human intervention.
There are four important things to keep in mind when dealing with night vision security cameras. Distance, resolution, light pollution and sensor type.
Many cameras tout their ability to project infrared light at great distances. Before spending resources on a camera that boast such feats, keep in mind that even if a camera can illuminate an object that is far away, chances are you are not going to be able to make out what that object is (unless you are using a camera with a zoom function). It is better to spend your money on a higher resolution camera with a lower infrared capability.
A vehicle will need to be within 50 feet of a night vision camera in order to properly identify the make and model (forget about color with an infrared security camera, the car will always be a shade of green). A person will need to be within 20 feet of the security camera to make a proper ID.
Most security cameras with IR illumination will have a reach of at least 25 feet – therefore the focus should be on increasing the image detail (or resolution) in order to have a better chance of identifying the subject. Remember that the resolution of the camera must be matched by a recording device that has the capability of recording it. If your camera has 480 lines of resolution, and your Digital Video Recorder can only record 320 lines of resolution, you are loosing the benefit of the higher resolution.
The other issue is light pollution. Many outdoor areas are lit at night. Sometimes by pretty strong light sources. Be very careful not to place your night vision security camera near such light sources, as it will interfere with the sensors and could produce unwanted artifacts in the recorded video.
If you plan to use your night vision security camera in an unlit area, keep in mind that the infrared illuminators do produce a faint reddish glow which can be easily detected at short distances. They may not be the best solution for covert surveillance.
Night vision is a necessary feature for any outdoor CCTV application. When choosing your camera, make sure that it features built in infrared illuminators and a CCD sensor. Cameras equipped with CMOS sensors do not perform as well in the dark, therefore I would recommend that you steer clear of them for outdoor applications. Also look for a camera with an IP55 designation which indicates that the camera is well suited to be used in humid and dusty conditions.
About the Author
Andy J Thompson is a residential CCTV camera specialist. For additional tips and informaiton you can read his blog at http://www.securitycameratutor.com/
