Latab Coaxial lighting is used to illuminate objects with highly reflective surfaces. Light is generated by a diffuse backlight and reflected by a 50% permeable mirror on the object so the lighting axis exactly matches the optical axis of the camera. This guarantees a shadow-free image and prevents reflections. The distance between the object and the light must be kept small and the object should be about 10% smaller than the dimension of the lighted area. Coaxial lighting is available in dimensions from 25 x 25 mm up to 145 x 145 mm. The standard colors are red, white, blue, green, and IR. Other colors are available on request. A special product is a 50 x 50 mm RGB coaxial lighting unit, which is tunable over the entire color spectrum.