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Miniature spectrometer based on linear variable interference filters

A novel spectrometer device using a single monolithic optical component and a detector array has been developed. The device is compact, rugged, and has good spectral purity and resolving power. The device size is 1.4 X 1.4 X 0.6 inches. Current designs work both in the visual and near infrared. Potential applications are manufacturing control, agricultural screening, medical instrumentation, and color measurement.