System and method for 3D-printed optical lens with in-situ antenna

Patent metadata

Field	Value
Publication number	US-11936100-B2
Application number	US-202217696633-A
Country	US
Kind code	B2
Filing date	Mar 16, 2022
Priority date	Mar 16, 2022
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

According to examples, a lens configuration for a head-mounted display (HMD) device may include a base platform made from glass or plastic, an antenna layer deposited onto the base platform, an optical polymer film deposited onto the antenna layer, and a lens layer deposited onto the optical polymer film through a 3D printing technique. The antenna layer may include a transparent antenna embedded into or deposited onto a transparent layer. The lens layer may be 3D printed as multiple partial layers to have a shape that matches a prescription for the lens layer.

First claim

The invention claimed is:

1. A lens configuration for a head-mounted display (HMD) device, comprising:
a base platform comprising a glass or plastic layer;
an antenna layer on the base platform, the antenna layer comprising a transparent film and an antenna;
an optical polymer film on the antenna layer; and
a lens layer on the optical polymer film through a 3D printing technique.

2. The lens configuration of claim 1 , wherein the antenna is embedded into, deposited on, or printed on the transparent film.

3. The lens configuration of claim 1 , wherein the antenna comprises transparent silver nanowire (AgNW).

4. The lens configuration of claim 1 , wherein the antenna is a wire loop antenna placed along a periphery of the base platform.

5. The lens configuration of claim 1 , wherein the antenna layer further comprises one or more circuitry embedded into, deposited on, or printed on the transparent film.

6. The lens configuration of claim 1 , further comprising:
a mask border formed around a periphery of the base platform, wherein the mask border is to fasten the antenna layer, the optical polymer film, and the lens layer.

7. The lens configuration of claim 1 , wherein the lens layer is provided on the optical polymer film by 3D printing a plurality of stacked layers.

8. The lens configuration of claim 7 , wherein at least a portion of the plurality of stacked layers are partial layers, and the 3D printing technique comprises selecting a number and a size of the partial layers such that a shape of the lens layer matches a prescription for the lens layer.

9. The lens configuration of claim 8 , wherein a size of droplets for the 3D printing technique is selected at least in part based on a thickness of each of the plurality of stacked layers.

10. A system for providing a lens configuration for a head-mounted display (HMD) device, the system comprising:
a molding unit to form a base platform comprising at least one of a glass layer or a plastic layer;
an antenna unit to provide an antenna layer on the base platform, the antenna layer comprising a transparent film and an antenna;
an optical polymer film unit to provide an optical polymer film on the antenna layer; and
a 3D printer to provide a lens layer on the optical polymer film.

11. The system of claim 10 , wherein
the antenna unit is to form the antenna layer through one of embedding the antenna into, depositing the antenna on, or printing the antenna on the transparent film, and
the antenna is one of a planar transparent electrode antenna or a wire loop antenna placed around a periphery of the base platform.

12. The system of claim 10 , wherein the antenna unit is to form the antenna layer comprising the transparent film and at least two antennas.

13. The system of claim 10 , wherein the 3D printer is to provide the lens layer on the optical polymer film by 3D printing a plurality of stacked layers.

14. The system of claim 13 , wherein
at least a portion of the plurality of stacked layers are partial layers,
a number and a size of the partial layers are selected such that a shape of the lens layer matches a prescription for the lens layer, and
a size of droplets is selected at least in part based on a thickness of each of the plurality of stacked layers.

15. The system of claim 10 , wherein the 3D printer employs one of stereolithography “SLA”, digital light processing “DLP”, liquid crystal display “LCD”, or inkjet deposition.

16. A method for providing a lens configuration for a head-mounted display (HMD) device, the method comprising:
providing a base platform comprising a transparent layer;
providing an antenna layer on the base platform, the antenna layer comprising a transparent film and an antenna, wherein the antenna is embedded into, deposited on, or printed on the transparent film;
providing an optical polymer film on the antenna layer; and
providing a lens layer on the optical polymer film by 3D printing a plurality of stacked layers.

17. The method of claim 16 , wherein providing the base platform comprises:
providing the base platform using one of poly-methyl-methacrylate (PMMA), cyclic-olefin-copolymer (COC), cyclo-olefin-polymer (COP), monomer plastic, polymer plastic, polycarbonate (PC), optical nylon, or glass.

18. The method of claim 16 , further comprising:
providing the antenna as a planar antenna using transparent silver nanowire (AgNW) or as a wire loop antenna to be placed around a periphery of the base platform.

19. The method of claim 16 , further comprising:
providing a mask border around a periphery of the base platform to fasten the antenna layer, the optical polymer film, and the lens layer.

20. The method of claim 16 , wherein 3D printing the plurality of stacked layers comprises:
depositing droplets of at least one of poly-methyl-methacrylate (PMMA), cyclic-olefin-copolymer (COC), cyclo-olefin-polymer (COP), monomer plastic, polymer plastic, polycarbonate (PC), or optical nylon onto the optical polymer film, wherein a size of the droplets is selected at least in part based on a thickness of each of the plurality of stacked layers.

Assignees

• Meta Platforms Tech Llc

Inventors

• Jenkins Kurt
• Pintz Sandro
• O'Keeffe Joseph

Classifications

• H01Q1/273 Primary

  Adaptation for carrying or wearing by persons or animals · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B33Y80/00 Primary

  Products made by additive manufacturing · CPC title

• G02B27/0172

  characterised by optical features · CPC title