Established in the early 1990s, Defence Vision Systems, (DVS) has expanded greatly since its inception when it began selling small, low-signal input cameras of high-quality, which it designed, developed and manufactured on-site to the defence sector.
A group of 30 dedicated scientists and engineers with an in-depth knowledge and experience in the field of cameras in the defence market, work for Defence Vision Systems in a secluded woodland area in Robertsbridge, East Sussex.
The DVS site has modern facilities, including vibration testing equipment and environmental ovens. Defence Vision Systems offers a comprehensive range of standard cameras and a highly successful custom service.
The company has created a family of low-light cameras and camera systems applicable to those projects that require COTS (commercial-off-the-shelf) devices.
Both the COTS and customer-specific systems are designed in accordance with either the applicable defence standards or customer-specified conditions for shock, vibration and temperature.
Military surveillance applications include:
The Defence Vision Systems range now includes:
DVS's night vision and surveillance system applications have been installed in armoured and airborne vehicles supported by defence forces in Europe and North America.
Defence Vision Systems maintains a constant development overview to ensure all their products remain at the forefront for performance, reliability and value. Here is a quick overview of the development:
All Defence Vision Systems cameras are designed to be fully automatic, plug-and-play, providing the optimum image over the full 24-hour period.
Choose Defence Vision Systems for high-quality cameras and camera systems at competitive prices.
The DVS driving system is a bolt-on upgrade to existing or new vehicles and is simple to fit with the sensor package mounted onto the outside of the vehicle. The only item penetrating the armour is the cable carrying the power and images, with the driver viewing the image via a pair of head-mounted spectacles. The system operates over the range of 900nm to 1,700nm, provides a wide field of view and, according to the system specified, may be from 120° up to 180°. The field of view is distortion-free even at the edges of the image.
The 120° field of view system consists of two short wave infrared (SWIR) cameras with the images edged matched to provide a continuous distortion-free image. The imager is in real time and allows the vehicle to be driven at the speeds compatible with the terrain. Wider fields of view are available using three or four cameras. A four camera system provides a full 180° of vision thus also helping with perimeter surveillance.
The use of SWIR provides a full 24hr operation from full sun to starlight. In situations where the scene illumination falls below starlight there are two 1,550nm head lights, fitted in place of the two IR headlamps. These provide illumination over the field of view up to a range in excess of 200m.The 1,550nm wavelength at which these operate means they are invisible to existing battle field sensors, such as standard direct view systems, image intensified goggles or similar, MWIR and LWIR. Therefore using the 1,550nm head lights still enables the vehicle to remain covert.