Optical: systems and elements – Light interference – Produced by coating or lamina
Reexamination Certificate
2007-01-16
2007-01-16
Boutsikaris, Leonidas (Department: 2872)
Optical: systems and elements
Light interference
Produced by coating or lamina
C359S589000, C359S584000
Reexamination Certificate
active
10956230
ABSTRACT:
An optical system employs an optical coating on a substrate positioned relative to an optical collection system. The thickness of the coating is tailored such that light perceived by the collection system over prescribed angles of acceptance has a spectral content that is unchanged, or changed in a prescribed manner, from that entering the system when the sensor is oriented in the “look ahead” direction. The thickness of the coating is varied so that the wavelengths transmitted or reflected correspond to those required by a specific application. The invention is adaptable to system requirements that are centered about a single wavelength, or that require multiple wavelengths. The optical coating can take any of a number of forms, including stacked dielectric layers and rugate filters.
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Hall Randolph L.
Southwell William
Boutsikaris Leonidas
Koppel Patrick & Heybl
Teledyne Licensing LLC
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