Patent ID: 7529478
Filing Date: 2009-05-05
Classification: F21S,F21V,F21W,F21Y,G03B

Abstract:
1. A CCTV video camera adaptive illumination device comprising: first and second lighting units connected to each other by way of a hinge mechanism, which comprises a hinge; and a gear mechanism such that angular movement of the first lighting unit about the hinge causes equivalent angular movement of the second lighting unit in an opposite direction about the hinge; wherein the gear mechanism is provided with a servo motor such that the two units pivot about the hinge under electronic control; and wherein the electronic control is linked with a zoom control for a lens of an associated video camera, such that the two units pivot away from each other as the focal length of the lens is reduced (for wide-angle operation), or pivot towards each other as the focal length of the lens is increased (for telephoto operation).