A backlight provides even, low-intensity light. It is placed behind the target and aimed directly back towards the camera. The resulting silhouette can be inspected for proper size and shape.

• Connects directly to PresencePLUS vision sensors or an external power supply
• Available with IP67 rated housing
• Installs directly behind the target
• Determines the shape and size of target objects
• Offers a highly diffused surface and uniform brightness, with a lower intensity than other lights
• Provides the most robust lighting for measuring and gauging
• Highlights through-holes in target objects
• Offers choice of models with infrared or visible red, white, blue or green lights
• Provides minimum useful life of 10,000 to 100,000 hours, depending on model