Patent ID: 11923475
Assignee: S.V.V. TECHNOLOGY INNOVATIONS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 22:
23. A method of making a light converting optical system as recited in claim 1, further comprising providing an optically transmissive surface having a plurality of microscopic bulges separated from each other by smooth and planar portions of the optically transmissive surface, wherein the second optical layer comprises an area-distributed array of linear cylindrical lenses integrally formed in a surface of an optically transmissive sheet substrate, wherein the second optical layer is configured to receive light at a first location and guide the received light towards a different location using optical transmission and total internal reflection and comprises an area-distributed plurality of discrete surface relief structures each having a curvilinear wall, wherein the linear cylindrical lenses are disposed side by side and extend parallel to each other between two opposite edges of the optically transmissive sheet substrate, wherein a total area of each of the plurality of discrete surface relief structures is less than a total area of each of the linear cylindrical lenses by at least 20 times, wherein the first microstructured broad-area front surface and the thin sheet of reflective light scattering material form a light trapping structure configured to provide for multiple transverse light passage through the continuous broad-area photoabsorptive film layer, wherein at least one of the first and second light converting semiconductor materials comprises quantum dots distributed within an optically transmissive material, wherein the light source is monochromatic, wherein the active layer comprises light scattering elements, and wherein the photoabsorptive film comprises a first optically transmissive protective layer disposed in contact with and bonded to a front surface of the active layer and a second optically transmissive protective layer disposed in contact with and bonded to a back surface of the active layer.