Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2010-07-02
2011-12-06
Spector, David N (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S227000, C052S171300
Reexamination Certificate
active
08072672
ABSTRACT:
The thermally switched reflective optical shutter is a self-regulating “switchable mirror” device that reflects up to 100% of incident radiant energy above a threshold temperature, and reflects up to 50% of incident radiant energy below a threshold temperature. Control over the flow of radiant energy occurs independently of the thermal conductivity or insulating value of the device, and may or may not preserve the image and color properties of incoming visible light. The device can be used as a construction material to efficiently regulate the internal temperature and illumination of buildings, vehicles, and other structures without the need for an external power supply or operator signals. The device has unique aesthetic optical properties that are not found in traditional windows, skylights, stained glass, light fixtures, glass blocks, bricks, or walls. The device can be tailored to transmit sufficient visible light to see through in both the transparent and reflective states, while still providing significant control over the total energy transmission across the device.
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McCarthy Wil
Powers Richard M.
Dorsey & Whitney LLP
RavenBrick LLC
Spector David N
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