Optical interference coatings and lamps using same
AssigneeGeneral Electric Company
InventorsCharles D. Tschetter, Rajasingh S. Israel, Denis A. Lynch
Life of this patent
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Abstract
A lamp including a light source (30) housed within a reflector (10), the reflector further includes a coating (24) over a major portion of an inner (20) and/or outer surface (22). The coating (24) is comprised of multiple layers of high and low index of refraction materials to provide at least 90% reflectance between about 425 and 750 nanometers and less than 20% reflectance peaks between about 900 nanometers and 1800 nanometers
Claims13
A lamp comprising a light source and a reflector, said reflector including a coating over a major portion of at least an inner or outer surface, said coating being comprised of multiple layers of high and low index of refraction materials wherein said coating has at least 90% reflectance between about 425 and 750 nanometers and less than 20% reflectance peaks between about 900 and 1800 nanometers.
A lamp comprising a light source and a reflector, said reflector including a coating over a major portion of at least an inner or outer surface, said coating being comprised of multiple layers of high and low index of refraction materials wherein said coating has at least 90% reflectance between about 425 and 750 nanometers and an average reflectance of below about 8% between about 850 nanometers and 1800 nanometers.
Dependencies are inferred from the claim text.