HOLOGRAPHIC OPTICAL ELEMENT DESIGN AND MANUFACTURING

• US 20180003975A1
• Filed: 07/01/2016
• Published: 01/04/2018
• Est. Priority Date: 07/01/2016
• Status: Active Grant

• Current Assignee: Covestro Deutschland AG
• Original Assignee: Intel Corporation
• Inventors: Ziegler, David, Guillaumee, Mickael, Tremblay, Eric, Moser, Christophe, Montfort, Frederic
• Granted Patent: US 10,642,043 B2
• Time in Patent Office: Days
• CPC Class Codes: B82Y 20/00 Nanooptics, e.g. quantum optics or photonic crystals
• CPC Class Codes: G02B 2027/0109 comprising details concerning the making of holograms
• CPC Class Codes: G02B 2027/0174 holographic
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 5/32 Holograms used as optical elements
• CPC Class Codes: G03H 1/0236 Form or shape of the hologram when not registered to the substrate, e.g. trimming the hologram to alphanumerical shape substrates bearing a hologram G03H1/0272
• CPC Class Codes: G03H 1/0402 Recording geometries or arrangements G03H1/0443, G03H1/0476, G03H1/16 take precedence
• CPC Class Codes: G03H 1/0891 Processes or apparatus adapted to convert digital holographic data into a hologram G03H1/2294 takes precedence
• CPC Class Codes: G03H 2001/043 Non planar recording surface, e.g. curved surface
• CPC Class Codes: G03H 2001/0432 Constrained record wherein, during exposure, the recording means undergoes constrains substantially differing from those expected at reconstruction
• CPC Class Codes: G03H 2001/0439 for recording Holographic Optical Element [HOE] HOE per se G02B5/32
• CPC Class Codes: G03H 2270/21 Curved bearing surface
• CPC Class Codes: G03H 2270/55 being an optical element, e.g. spectacles
• CPC Class Codes: Y10S 977/902 Specified use of nanostructure

Abstract

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.

Claims

1. A method to manufacture a holographic optical element (HOE), the method comprising:

impinging at least one wavefront on a material having a first shape, the at least one wavefront to cause a first structure change in the material;

shaping the material to a second shape to cause a second structure change in the material; and

forming a holographic optical element (HOE), the HOE comprising the material having the second shape and a structural attribute, the structural attribute based in part on a combination of the first structure change and the second structure change.

2. The method to manufacture the HOE according to claim 1, further comprising impinging a plurality of wavefronts on the material having the first shape to cause the first structure change in the material.

3. The method to manufacture the HOE according to claim 1, further comprising forming the HOE having the second shape and the structural attribute to conform to a defined design.

4. The method to manufacture the HOE according to claim 1, wherein the material is a photopolymer, emulsion material, crystal, or photoresist-based material.

5. A holographic optical element (HOE) manufactured by the method of claim 1.

6. The method to manufacture the HOE according to claim 1, wherein the first shape of the material is flat, the second shape of the material is curved, and the structural attribute is a nano structure of the material.

7. The method to manufacture the HOE according to claim 1, wherein the structural attribute is a nano structure, the first structure change in the material is a first nano structure change in material, and the second structure change in the material is a second nano structure change in the material.

8. A method to design a holographic optical element (HOE), the method comprising:

simulating, via a digital computer, a holographic optical element (HOE), the HOE comprising a material having a modified shape and a structural attribute;

simulating, via the digital computer, a wavefront to cause a first structure change in the material while the material is in a first shape; and

simulating, via the digital computer, the material changing from the first shape to the modified shape to cause a second structure change in the material, the structural attribute in the material based in part on a combination of the first structure change and the second structure change.

9. The method to design the HOE of claim 8, wherein the structural attribute is a nano structure of the HOE.

10. The method to designing the HOE of claim 8, wherein the first structure change in the material is a first nano structure change in the material.

11. The method to designing the HOE of claim 10, wherein the second structure change in the material is a second nano structure change in the material.

12. The method to designing the HOE of claim 8, wherein the structural attribute is a nano structure, the first structure change in the material is a first nano structure change in material, and the second structure change in the material is a second nano structure change in the material.

13. The method to designing the HOE of claim 8, wherein the material is a photopolymer, emulsion material, crystal, or photoresist-based material.

14. The method to designing the HOE of claim 8, further comprising determining, via the digital computer, at least one incident wavefront to impinge on the HOE to produce a diffracted wavefront influenced by at least the structural attribute of the material.

15. The method to designing the HOE of claim 8, further comprising generating, via the digital computer, a plurality of wavefronts to cause the first structure change in the material while the material is in the first shape.

16. The method to designing the HOE of claim 8, wherein the first shape is flat and the modified shape is curved.

17. At least one non-transitory machine-readable storage medium comprising instructions that when executed by a computing device, cause the computing device to:

simulate a holographic optical element (HOE), the HOE comprising a material having a modified shape and a structural attribute;

simulate a wavefront to cause a first structure change in the material while the material is in a first shape; and

simulate the material changing from the first shape to the modified shape to cause a second structure change in the material, the structural attribute in the material based in part on a combination of the first structure change and the second structure change.

18. The least one non-transitory machine-readable storage medium of claim 17, wherein the structural attribute is a nano structure, the first structure change in the material is a first nano structure change in material, and the second structure change in the material is a second nano structure change in the material.

19. The least one non-transitory machine-readable storage medium of claim 17, wherein the material is a photopolymer, emulsion material, crystal, or photoresist-based material.

20. The least one non-transitory machine-readable storage medium of claim 17, further comprising the computing device to determine at least one incident wavefront to impinge on the HOE to produce a diffracted wavefront influenced by at least the structural attribute of the material.

21. The least one non-transitory machine-readable storage medium of claim 17, further comprising the computing device to determine a plurality of wavefronts to cause the first structure change in the material in the first shape.

22. The least one non-transitory machine-readable storage medium of claim 17, wherein the first shape is flat and the modified shape is curved.

23. A holographic optical element (HOE), comprising:

a shaped material having a structural attribute, the shaped material having the structural attribute provided by;

impinging at least one wavefront on a material having a first shape, the at least one wavefront to cause a first structure change in the material; and

shaping the material to a second shape to cause a second structure change in the material, the structural attribute based in part on a combination of the first structure change and the second structure change.

24. The HOE according to claim 23, wherein the shaped material having the structural attribute is provided by impinging a plurality of wavefronts on the material having the first shape to cause the first structure change in the material.

25. The HOE according to claim 23, wherein the structural attribute is a nano structure, the first structure change in the material is a first nano structure change in material, and the second structure change in the material is a second nano structure change in the material.