Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1999-02-25
2000-04-25
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359265, 359275, 136251, G02F 1153
Patent
active
060550899
ABSTRACT:
A sealed insulated glass unit is provided with an electrochromic device for modulating light passing through the unit. The electrochromic device is controlled from outside the unit by a remote control electrically unconnected to the device. Circuitry within the unit may be magnetically controlled from outside. The electrochromic device is powered by a photovoltaic cells. The photovoltaic cells may be positioned so that at least a part of the light incident on the cell passes through the electrochromic device, providing a form of feedback control. A variable resistance placed in parallel with the electrochromic element is used to control the response of the electrochromic element to changes in output of the photovoltaic cell.
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Michalski Lech A.
Schulz Stephen C.
Van Dine John E.
Volltrauer Hermann N.
Ben Loha
Minnesota Mining and Manufacturing Company
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