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US 12,481,092 B2Granted
Light filter and the method thereof
AssigneeInnoworks Product Creation Limited
InventorWai Yan Vian Li
Life of this patent
Estimating the term…
Abstract
A light filter (100) includes at least one layer of binder matrix (110) and a multitude of transparent crystals (120). The multitude of transparent crystals (120) are irregularly and laterally dispersed in the at least one layer of binder matrix (110), such that light passing through the light filter (100) is separated into different wavelengths and polarized into different orientations.
Claims4
A lighting device for light therapy, comprising
- a) a light source adapted to illuminate in at least one direction;
- and
- b) at least one light filter disposed in the at least one illumination direction of the light source, wherein the light filter comprising
- two or more layers of binder matrix;
- and
- a multitude of transparent crystals randomly and irregularly dispersed in each layer of the binder matrix;
- wherein the multitude of transparent crystals have various shapes and sizes, and the particle size of each transparent crystal is between 0.01 mm and 5 mm;
- the transparent crystals are made of glass, crystals, or silicon dioxide;
- and the various shapes are irregular polygonal shapes;
- whereby light from the light source passing through the multitude of randomly and irregularly dispersed transparent crystals in the light filter is refracted and/or reflected to be polarized into different orientations.
7 more elements
Dependencies are inferred from the claim text.