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Welcome to Coursen Coating Labs, Inc.

For over 50 years, Coursen Coating Labs has been an industry leader in the optical thin film coating industry. We pride ourselves on discovering innovative and cost effective ways to improve our customer's products. Coursen Coating is a leading optical manufacturer that sells to OEM customers and dealers world-wide.
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Metalization
Mirrors
Optical Substrates
UV Filters

Our Philosophy

Quality work done right the first time. 

Here at Coursen Coating Labs we pride ourselves on quality and integrity of service. We believe that a job worth doing is worth doing well. Much of our effort here is to be certain the customer is receiving the best product for their needs. We encourage you to challenge us with difficult projects so we can showcase what we can do for you. 
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Latest News

By Dan Coursen 12 Mar, 2019
Coursen Coating Labs has been quietly working in the shadows for over 25 years to provide alternative to gold solderable coatings. Night vision optical systems, guidance systems, endoscopy, and other industries all use our 3LPT coating. Our proprietary coating excels when used to create hermetic seals for optical housings. This solderable coating is resistant to environmental changes and displays superior adhesion to most substrates, from glass to ceramics, as it is less susceptible to thermal expansion. We developed our 3LPT coating as a solution to our customers’ problems. One example featured a customer attempting to bond miniature optical components to ceramic using a high-grade epoxy. The epoxy would break down with exposure to radiation, causing the optics to come loose or move out of alignment. Our 3LPT coating was used to replace the joints (Figure 1), resulting in no broken bonds with the ceramic when soldered correctly. The soldered joint often outlasted the actual components.
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