DARK SECRETS

This article describes the Night Vision infrared system for cars, developed by General Motors (GM) in the USA. It uses a head-up display that seems to float above the car's bonnet, and gives the driver a view which is at least 100m ahead of where the headlights can reach and not affected by dazzle. It gives advance warning of potential hazards ahead, and will lead to a huge advance in safety because a majority of road facilities occur at night. The first production car to be fitted with Night Vision will be the Cadillac De Ville, which will be launched in 2000; it will be available as an extra at a cost of about US$2000. It uses an infrared camera, which views through a circular hole in the centre of the grille and is kept at a temperature of about 10C to maintain image focus. The camera has a highly-light-collecting f1.2 two-element lens, made of black tecalgenite glass to transmit infrared. The image is focused onto a matrix of thousands of sensors made of a ferro-electric barium strontium titanate (BST) material. To provide a moving picture, the whole surface of the matrix is scanned 30 times a second to produce an electronic video system, which feeds a Delphi-Delco Electronics liquid crystal screen, enlarged and projected by a mirror and lens. Image height and brightness is adjustable from the dashboard.

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  • Corporate Authors:

    HAYMARKET MAGAZINES LTD

    38-42 HAMPTON ROAD
    TEDDINGTON, MIDDLESEX  United Kingdom  TW11 0JE
  • Authors:
    • SCARLETT, M
  • Publication Date: 1999-2-10

Language

  • English

Media Info

  • Pagination: p. 80-1
  • Serial:
    • AUTOCAR
    • Volume: 219
    • Issue Number: 6
    • Publisher: HAYMARKET MAGAZINES LTD
    • ISSN: 1355-8293

Subject/Index Terms

Filing Info

  • Accession Number: 00764428
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: May 28 1999 12:00AM