Coaxial Lights

Diffuse on-axis lighting, also referred to as co-axial lighting, transmits lighting perpendicular to the target and uses a mirror to send the light rays at a 90-degree angle to the target. This technique will highlight specular surfaces perpendicular to the camera. Surfaces that are at an angle to the camera will be dark. This lighting technique reduces shadowing and has very little glare. This makes it useful to detect flaws on shiny, flat surfaces, measurements or inspection on shiny objects, or to inspect transparent packaging.