UV lenses – benefits and challenges

UV lenses – benefits and challenges

Unfortunately, many optical materials transparent to visible light become strongly absorbing in the ultraviolet (UV) spectral region (200-400nm). Also due to the shorter wavelengths – scattering effects are very strong in the UV region. Consequently, to minimise these...
Novel zoom lens for remote and hazardous applications

Novel zoom lens for remote and hazardous applications

Traditional zoom lenses are complex with lots of close tolerance components sliding and rotating within each other. This is fine under normal conditions, however at extremely low or high temperatures or applications subject to vibration these movements present a...