Photochromic Optical Filter Incorporating a Thermochromic Gate

An optical shutter device includes a temperature responsive gate and a photochromic attenuator arranged such that at low temperatures the device is largely transmissive to solar or other radiation within a given band of wavelengths and, at high temperatures, the device is largely nontransmissive whe...

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Bibliographische Detailangaben
Hauptverfasser:	MCCARTHY WIL, IGLESIAS WILDER, CALDWELL CHRISTOPHER M
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	An optical shutter device includes a temperature responsive gate and a photochromic attenuator arranged such that at low temperatures the device is largely transmissive to solar or other radiation within a given band of wavelengths and, at high temperatures, the device is largely nontransmissive when a flux of trigger wavelengths is present and largely transmissive when a flux of trigger wavelengths is not present.