Optical wheel
AssigneeTaiwan Color Optics, Inc.
InventorsChih-Feng Wang, Yung-Peng Chang
Life of this patent
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Abstract
The instant disclosure provides an optical wheel including a rotary light-transmittable substrate, an optical microstructure layer and an optical coating layer. The rotary light-transmittable substrate has a first surface and a second surface opposite to the first surface, and rotates around a central axis. The optical microstructure is disposed on the first surface or the second surface. The optical coating layer is disposed on the optical microstructure. At least a laser incident light beam is projected onto the first surface or the second surface of the rotary light-transmittable substrate for forming a laser emission light beam emitted from the second surface.
Claims7
An optical wheel, comprising:
- a rotary light-transmittable substrate having a first surface and a second surface opposite to the first surface;
- an optical microstructure layer disposed on the first surface or the second surface, wherein the optical microstructure layer and the rotary light-transmittable substrate are made of the same material and a roughness of the optical microstructure layer ranges from 0.01 to 1 μm;
- and
- an optical coating layer disposed on the optical microstructure layer;
- wherein at least one laser incident light beam is projected onto the first surface or the second surface of the rotary light-transmittable substrate and passes through the optical microstructure layer for forming at least one laser emission light beam emitted from the second surface.
Dependencies are inferred from the claim text.