• Firstsight Vision Limited

UV & IR Lightings

Firstsight Vision offers UV & IR Lighting. This UV lighting provides powerful alternative illumination possibilities for applications where visible light illumination is inadequate. This lighting is used for machine vision application. Optimum results are obtained using these light sources, by recommending the appropriate optical systems and cameras for use with them. Most CCD cameras are not very sensitive in the near-ultraviolet region, so for UV applications, it is essential to select a suitable camera. UV filters may be required and it is important to take into account their effects on the overall imaging conditions. The IR range is available in 32 models, offering different illumination geometries for different applications. These include high-density ring lights, power-saving backlights and high intensity LED arrays. A choice of two different peak wavelengths of 850 nm and 940 nm can be selected according to the object to be inspected, since the images taken may be affected by the emission spectrum distribution of the infrared LED used and the spectral sensitivity characteristic of the CCD camera. The LED directional characteristic can be selected between 15° for direct light types and 30° for plane emission types as standard models. The UV LEDs are available in 31 different models and have a peak wavelength of 365 nm and a light spread of 20° for good intensity, range and uniformity.