Backup camera


Backup camera

A backup camera is a special type of video camera that is produced specifically for the purpose of being attached to the rear of a vehicle to aid in backing up.

Backup Cameras are alternatively known as 'Reversing Cameras' or 'Rear View Cameras'.

The design of a backup camera is distinct from other cameras in that the image is horizontally flipped so that the output is a mirror image. This is necessary because the camera and the driver face opposite directions, and without it, the camera's right would be on the driver's left and vice versa. A mirrored image makes the orientation of the display consistent with the physical mirrors installed on the vehicle.

Backup cameras are common on vehicles that tow difficult-to-see trailers, such as motorhomes. Recently, with the rise in popularity of in-dash DVD players and GPS navigation systems which aid in justifying the expense of adding a color LCD display to the driver's seat, they have become much more common, often available as optional factory accessories on standard passenger trucks and sport utility vehicles, as well as aftermarket accessories. Inside the vehicle, the display is typically wired to automatically sense when the transmission is set in reverse, showing the backup view while in reverse, and showing the map (or other content) at all other times.

A backup camera typically sports a wide-angle or fisheye lens. While such a lens spoils the camera's ability to see faraway objects, it allows the camera to see an uninterrupted horizontal path from one rear corner to the other. The camera is typically pointed on a downward angle, to view potential obstacles on the ground as well as the position of approaching walls and docks, rather than straight back.

Variations

Backup cameras are produced in different varieties depending on the application.
* For large vehicles such as motorhomes, camera systems with built-in servomechanisms allow the driver to remotely pan and tilt the camera.
* Built-in audio intercoms (one-way or two-way) are used in addition to the camera system for communicating with a spotter outside the vehicle - common when backing large trailers or launching boats.
* Night vision cameras use a series of infrared lights for backing in the dark, when the positioning or the intensity of the vehicle's white reverse lights are insufficient for this purpose.
* Portable or semi-permanent all-in-one camera systems are sold typically for small vehicles that don't have displays permanently installed in the dash. Such systems consist of a small portable screen that hangs from the sun visor above, and a length of wire to reach the cameras.
* License-plate-frame versions permit permanent installation without any permanent vehicle modifications.
* Custom cameras are produced to fit specific makes and models of vehicles. For example, for the Hummer H2, a specialized camera exists that replaces a factory tail light and matches the original vehicle style. Other custom cameras replace a brake light with a combination device that contains a camera while still illuminating as a brake light.

External links

* [http://www.nissan.co.uk/home/vehicles/4x4/P61B/highlights/index.html Nissan Pathfinder]
* [http://www.lexus.com/models/rx_hybrid/demo_vp/RXH_Camera/index.html Lexus RX (Demonstration) *LINK BROKEN*]
* [http://users.tpg.com.au/mpaine/driveways.html Driveway safety and evaluation of vehicle technologies]
* [http://www-nrd.nhtsa.dot.gov/pdf/nrd-01/esv/esv18/CD/Files/18ESV-000466.pdf The danger to young pedestrians from reversing motor vehicles] Proceedings of 18th Conference on the Enhanced Safety of Vehicles, Nagoya, 2003


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Backup (disambiguation) — The term backup has several meanings.* In reference to information technology: ** Backup The concepts behind backing up data to enable recovery from data loss. ** Backup software The software that performs this function. ** List of backup… …   Wikipedia

  • History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

  • Advanced Camera for Surveys — The Advanced Camera for Surveys (ACS) is a third generation axial instrument aboard the Hubble Space Telescope (HST). The initial design and scientific capabilities of ACS were defined by a team based at Johns Hopkins University. ACS was… …   Wikipedia

  • Original camera negative — The original camera negative (OCN) is the film in a motion picture camera which captures the original image. This is the film from which all other copies will be made. It is known as raw stock prior to exposure. The size of a roll varies… …   Wikipedia

  • Advanced Parking Guidance System — (APGS) is an automatic parking system first developed by Toyota Motor Corporation in 2004 for its latest Lexus models and also the Japanese market hybrid Prius models. In Europe, the APGS is marketed as the Intelligent Park Assist system. On… …   Wikipedia

  • Honda Legend — This page is about this vehicle s Japanese model. See Acura Legend and Acura RL for information on the North American model. Sections of this article are translated from Japanese Wikipedia. Honda Legend …   Wikipedia

  • Chevrolet Volt — Manufacturer Chevrolet division of General Motors Also called Holden Volt Opel Ampera Vauxhall Ampera …   Wikipedia

  • Nikon FM10 — FE10 redirects here. For the tenth Fire Emblem game, see Fire Emblem: Radiant Dawn. FM10 redirects here. For the 2010 edition of Football Manager, see Football Manager 2010. Nikon FM10 Nikon FM10 with a Zoom Nikkor 35 70 mm f/3.5 4.8 zoom lens.… …   Wikipedia

  • Nikon FM2 — The Nikon FM2 is an advanced semi professional, interchangeable lens, 35 mm film, single lens reflex (SLR) camera. It was manufactured by Nippon Kogaku K. K. (today Nikon Corporation) in Japan from 1982 to 2001. The original camera was released… …   Wikipedia

  • Nikon FM — Type 35mm SLR Lens mount Nikon F mount Focus Manual focus Exposure manual 60/40 center weighted …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.