Holographic optical element design and manufacturing
Disclosed herein are devices and methods to provide a holographic optical element (HOE) having a modified shape and a structural attribute. At least one wavefront may be used to cause a first structure change in a material, used for the HOE, in a first shape. The material used for the HOE may be changed from the first shape to the modified shape to cause a second structure change in the material. The structural attribute in the material may be provided from a combination of the first structure change and the second structure change.
1. A method to manufacture a holographic optical element (HOE), the method comprising:
impinging a plurality of wavefronts on a material having a first shape, the plurality of wavefronts to cause a first nano structure change in the material, the first nano structure change based on a second nano structure change, wherein the combination of the first nano structure change and the second nano structure change combine to form a structural attribute of a holographic optical element (HOE);
shaping the material to a second complex shape to cause the second nano structure change in the material; and
forming the HOE, the HOE comprising the material having the second complex shape and the structural attribute.
2. The method to manufacture the HOE according to claim 1 , further comprising forming the HOE having the second complex shape and the structural attribute to conform to a defined design.
3. The method to manufacture the HOE according to claim 1 , wherein the material is a photopolymer, emulsion material, crystal, or photoresist-based material.
4. A holographic optical element (HOE) manufactured by the method of claim 1 .
5. The method to manufacture the HOE according to claim 1 , wherein the first shape of the material is flat, the second complex shape of the material is curved, and the structural attribute is a nano structure of the material.
6. The method to manufacture the HOE according to claim 1 , comprising determining the plurality of wavefronts based in part on the structural attribute and the second structure change.
7. The method to manufacture the HOE according to claim 1 , wherein the first shape is flat and the second shape is curved.
8. A holographic optical element (HOE), comprising:
a shaped material having a structural attribute, the shaped material having the structural attribute provided by:
impinging a plurality of wavefronts on a material having a first shape, the plurality of wavefronts to cause a first nano structure change in the material, the first nano structure based on a second nano structure change, wherein the combination of the first nano structure change and the second nano structure change combine to form the structural attribute; and
shaping the material to a second complex shape to cause the second nano structure change in the material.
9. The HOE according to claim 8 , wherein the material is a photopolymer, emulsion material, crystal, or photoresist-based material.
10. The HOE according to claim 8 , wherein the first shape is flat and the second shape is curved.