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The concept behind diffused lighting camouflage was to project light on to the sides of a ship, to make its brightness match its background. Projectors were mounted on temporary supports attached to the hull and the prototype was developed to include automatic control of brightness using a photocell. The concept was never put into production ...
The use of Yehudi lights to camouflage aircraft by matching their luminance with the background sky was developed, in part, by the US Navy's Project Yehudi from 1943 onwards, following pioneering experiments in the Canadian diffused lighting camouflage project for ships early in the Second World War. [3]
The first of these was the so-called diffused lighting camouflage tested on Canadian Navy corvettes including HMCS Rimouski. This was followed in the United States Army Air Forces with the airborne Yehudi lights project, and trials in ships of the Royal Navy and the US Navy. [11] The Yehudi lights project placed low-intensity blue lights on ...
Diffused lighting camouflage, in which visible light is projected on to the sides of ships to match the faint glow of the night sky, was trialled by Canada's National Research Council from 1941 onwards, and then by the Royal Navy, during the Second World War. Some 60 light projectors were mounted all around the hull and on the ships ...
In the diffused lighting camouflage project, the Royal Canadian Navy experimented with variable counter-illumination camouflage to match horizon light levels and minimize ships' silhouettes during prolonged arctic twilight. During the experiments, one side of the test ship was faintly illuminated by projectors mounted outboard.
Scientists in China have created a new camouflaging material that changes colour in response to its surroundings, an advance they say may help develop clothing to make one “effectively invisible
In September 1941, she took part in the Canadian Navy's secret trials of diffused lighting camouflage, a technology for concealing ships from submarines at night. [14] In January 1942 she began use as an anti-submarine training ship in Halifax and Pictou, which lasted until January 1943 before heading off for refit. [13]
Rimouski was outfitted with an experimental version of diffused lighting camouflage for the operation. Military guards were aware of the tunnelling efforts at Camp 30 but deliberately (and covertly) allowed them to proceed so as to not tip off the Kriegsmarine. Incidentally, Wolfgang Heyda did escape, however not by the tunnel as he used a zip ...