CCTV: Night Vision Cameras

eiodotcom —  September 7, 2012 — Leave a comment

Today’s Eio post is on night vision cameras.

CCTV

Night vision cameras fall under the larger umbrella of CCTV (closed-circuit television) cameras. They generally serve the same purposes as other CCTV cameras, being that they are cameras to transmit a video signal to a specific place, usually viewed over a monitor. Night vision cameras are most often used for video survelliance purposes.

Night Vision Cameras

A night vision camera, which falls under the night vision devices (NVD), is an optical instrument that permits observation, photography, and video recording in extremely low-light or no-light conditions. It records video in levels of light approaching total darkness. These cameras are most often used by the military, police, other security forces, and are also available to civilian users. Most civilians do not use these cameras for recreation and wildlife observation.

In terms of the technology and how night vision cameras operate, Wisegeek says this:

There are two primary technologies used for a night vision camera. The first, and most common, is a photomultiplier tube, or “conventional night vision,” operating in the near-infrared frequency range, picking up light waves about 1 micrometer wide (human vision can only see light with a frequency between 0.4 and 0.7 micrometers). The second is thermal imaging, which allows a night vision camera that can take pictures even in cases where light is absent. This is because thermal cameras can see the electromagnetic radiation released by blackbody heat that emanates from every physical object. The newest types of night vision camera use a blend of both technologies.

COP-USA CHLP65IR-HSL Professional High Resolution Variable Speed License Plate Camera

Q-See QSICC2PK 2 Pack CMOS Camera with Night Vision

  • Indoor color camera kit
  • Built-In microphone for audio
  • 8 Infrared LEDs
  • 15 ft. night vision
  • 30 ft. of cable included with each camera for flexible installation (cable can extend to longer distance)

Intellinet 551045 NFC31-IR Megapixel Night-Vision Network Camera H.264 + MPEG4 + Motion-JPEG Multi-Streaming, PoE, Audio, 1.3 Megapixel CMOS, 720p HD

  • 1.3 Progressive-Scan Megapixel CMOS image sensor for crystal-clear images
  • Supports image resolutions up to 1280 x 1024 (1.3 Megapixel) or 1280 x 720 (720p)
  • Supports simultaneous H.264, MPEG4 and Motion-JPEG image compression
  • Excellent image quality with 30 fps full-motion video in VGA and 15 fps video in 1.3 Megapixel resolution
  • Audio support, full duplex, up to 8 kHz, with integrated microphone
  • Integrated motion detection with pre- and post-alarm image/video buffering
  • Supports audio detection with adjustable threshold
  • For surveillance in low light or nighttime conditions, minimum 0 lux (complete darkness)
  • Equipped with an IR lens with 12 IR LEDs and one IR sensor
  • IR sensitive, supports external IR Illuminators
  • Event-triggered FTP and e-mail upload of still images and videos
  • Supports local network storage: Can write video clips directly to a network attached storage (NAS) drive
  • NAS storage supports cyclic recording, automatically overwriting older files once the allocated storage space is exceeded
  • Supports SMB/CIFS (Windows) and NFS (Linux) network file systems
  • External microphone input connector
  • External speaker output connector
  • Terminal block for external sensors or external alarm devices
  • Selectable video buffer for smoother video streaming
  • Controllable frame rate
  • Mobile phone streaming live video through 3GPP / ISMA / RTSP
  • Mobile phone live image through 2.5 WAP
  • Supports privacy zone and text overlay functionality
  • H.264 + MPEG4 + Motion-JPEG + 3GPP mobile phone streaming, audio and 10x digital zoom
  • Supports HTTPS encryption and IP filter for enhanced security
  • Supports UPnP with UPnP port forwarding capability
  • Integrated e-mail, FTP, DDNS and DHCP client
  • Video access through any standard Web browser
  • Supports IEEE 802.3af Power over Ethernet injectors, mid- and endspans
  • Easy-to-use 16-channel camera viewing and recording utility included (not compatible with NSC10 and NSC18 cameras)
  • Three-Year Warranty

KT&C KPC-N750NH9

1/3″ Sony CCD, 550 TV Lines, IR LED : 42ea, Max. 50M, f3.0~8.0mm, Varifocal Lens(ICR), External focus adjustable, IP67, DC 12V,  AC 24V / DC 12V dual Voltage

See also:

Advertisements

No Comments

Be the first to start the conversation!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s