Redshift Systems Corporation

Shuyun Wu

Matthias Wagner

Eugene Y Ma

John F Heanue

Charles McAlister Marshall

A thermal imaging device including: a substrate; and an array of thermally tunable pixel elements for generating a thermal image, each thermally tunable pixel element including: a plurality of thermally tunable filter islands, each of which has a thermally tunable optical filter, wherein each of the plurality of tunable filter islands within that pixel element is thermally isolated from the other tunable filter islands within that tunable pixel element; an absorption structure for absorbing incident optical thermal energy; and a mechanical structure supporting the plurality of tunable filter islands and the absorption structure on the substrate.

Pixel architecture for thermal imaging system

A thin-film interference filter structure has a generally wavelength-dependent resonant response to incident optical energy in a predetermined range of wavelengths. The thin-film interference filter structure includes a thermally tunable layer having a thermally tunable optical characteristic such that a range of wavelength-dependent resonant optical responses of the thermally tunable layer are induced by a corresponding range of thermal conditions of the thermally tunable layer. The thin-film interference filter structure is configured to (1) receive a spatially varying pattern of thermal energy at the thermally tunable layer to impart a corresponding spatially varying pattern to the thermally tunable characteristic of the thermally tunable layer, and (2) receive the incident optical energy into the thermally tunable layer and output optical energy having spatial modulation corresponding to the spatially varying pattern of the thermally tunable characteristic.

Method of spatially separating wavelengths of multi-wavelength signal using electronically controlled thermal structure

An apparatus includes a thin-film interference filter structure having a generally wavelength-dependent resonant response to incident optical energy in a predetermined range of wavelengths. The thin-film interference filter structure includes a thermally tunable layer having a thermally tunable optical characteristic such that a range of wavelength-dependent resonant optical responses of the thermally tunable layer are induced by a corresponding range of thermal conditions of the thermally tunable layer. The thin-film interference filter structure is configured to (1) receive a spatially varying pattern of thermal energy at the thermally tunable layer to impart a corresponding spatially varying pattern to the thermally tunable characteristic of the thermally tunable layer, and (2) receive the incident optical energy into the thermally tunable layer and output optical energy having spatial modulation corresponding to the spatially varying pattern of the thermally tunable characteristic.

Thermally controlled spatial light modulator using phase modulation

A thermally tunable pixel element includes a substrate; a thermally tunable filter island; a thermal absorption structure in direct thermal contact with and extending beyond the thermally tunable filter island; and a thermal isolation structure providing a thermally isolating path between the thermal absorption structure and the substrate.

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Acton, MA, United States of America

Shuyun Wu