Thermally switched optical downconverting filter
First Claim
1. A reflective film for regulating reflection of incident radiant energy comprisinga first optical filter layer;
- a second optical filter layer; and
a temperature-responsive optical material positioned between the first optical filter layer and the second optical filter layer.
3 Assignments
0 Petitions
Accused Products
Abstract
A thermally switched optical downconverting (TSOD) filter is a self-regulating device including a downconverter that converts incoming light at a variety of wavelengths into longer-wavelength radiation and then directs it using one or more bandblock filters in either the inward or outward direction, depending on the temperature of the device. This control over the flow of radiant energy occurs independently of the thermal conductivity or insulating properties of the device and may or may not preserve the image and color properties of incoming visible light. The TSOD filter is energy-efficient as it can be used to regulate the internal temperature and illumination of buildings, vehicles, and other structures without the need for an external power supply or operator signals. The TSOD filter has unique aesthetic and optical properties not found in traditional windows, skylights, stained glass, light fixtures, glass blocks, bricks, or walls.
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Citations
25 Claims
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1. A reflective film for regulating reflection of incident radiant energy comprising
a first optical filter layer; -
a second optical filter layer; and a temperature-responsive optical material positioned between the first optical filter layer and the second optical filter layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25)
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22. A reflective film for regulating the reflection of light comprising
a first optical filter layer that reflects up to 50% of incident light and passes up to 50% of the incident light; -
a second optical filter layer, and a temperature-responsive optical material positioned between the first optical filter layer and the second optical filter layer that adjusts an optical property of incident light below a threshold temperature, wherein above the threshold temperature up to 100% of incident light is reflected by the film, and below the threshold temperature up to 50% of incident light is reflected by the film.
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Specification