Photon Control Inc. focuses on developing, manufacturing, and distributing optical sensor technologies and systems for precise temperature and position measurement. Their product range includes robust fiber optic temperature probes, specifically designed for harsh environments, along with both single and multi-channel temperature sensing solutions. The company also specializes in the custom design, development, and production of optical sensors for determining position and displacement. Beyond products, they provide a full suite of services, including bespoke design, installation, training, and ongoing support. Photon Control caters to manufacturers of wafer fabrication equipment and various end-users within the semiconductor and associated industries across both the United States and Asia. The company was founded in Richmond, Canada, in 1988, originally operating under the name Coldswitch Technologies Inc. before rebranding as Photon Control Inc. in 2002.