J.R. Cumberland Inc. (also known as Cumberland Optical) specializes in the custom manufacturing of precision optical components and systems. The company produces a wide range of optical products such as lenses, prisms, mirrors, coatings, and optical assemblies tailored to client specifications. Its expertise includes providing optical solutions for telescopes, prototypes, laser optics, and specialized systems using materials like optical glass, aluminum, and stainless steel. J.R. Cumberland is recognized for its focus on quality, customization, and close collaboration with clients to deliver reliable and precise optical products. The company upholds a legacy of craftsmanship and service, serving industries that require high-performance optical components and systems for scientific, industrial, and research applications.