Light Combiner Demonstration

The Light Combiner is a simple yet dramatic way to demonstrate the additive color process.

• Developed by Joe Rich

By placing the Light Combiner on an overhead projector and adjusting the focus, the primary light colors of red, green and blue are combined to produce the secondary light colors of yellow, cyan and magenta and white light. In addition to the instructions, this booklet includes a reproducible worksheet for students to record their observations.