Near-eye display system with seal

A seal between the housing and image waveguide in near-eye display systems addresses the issue of moisture ingress by creating a secure fluid seal, ensuring the reliability and longevity of internal components.

HK40135801APending Publication Date: 2026-07-31VUZIX CORP
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Patent Information

Application Number
HK62026125016
Authority / Receiving Office
HK · HK
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-11
Filing Date
2026-06-18
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing near-eye display systems face challenges in maintaining a reliable fluid seal between the housing and the image waveguide, which can lead to moisture ingress and compromise the integrity of the internal electronic components.

Method used

A seal is disposed between the housing and the image waveguide to form a fluid seal, with the seal mating with the housing to create a sealed cavity for the projector and additional electronic components, partitioning the cavity to isolate the projector from the electronic components.

Benefits of technology

The solution effectively prevents moisture ingress, ensuring the reliability and longevity of the internal components by maintaining a secure fluid seal, thereby enhancing the performance and durability of the near-eye display system.

✦ Generated by Eureka AI based on patent content.

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Abstract

A near-eye display system including a housing, an image light guide engaged with the housing, and a seal arranged between the housing and the image light guide. A projector is arranged in a chamber within the housing, which has an opening through which the projector emits light to the image light guide. Additional electronics such as a transceiver and circuit are arranged in the chamber. The additional electronics may be sectioned off from the projector within the chamber, for example, by a partition which forms a first chamber in which the projector is arranged and a second chamber in which the additional electronics are arranged. The seal is engaged with the opening and provides a fluid tight seal between the first chamber and the image light guide. The seal may also be engaged with an additional opening in the housing to fluidly seal the second chamber.
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Description

Abstract A near-eye display system includes a housing, an image waveguide assembled with the housing, and a seal disposed between the housing and the image waveguide. A projector is installed in a cavity within the housing, and the cavity has an opening through which the projector emits light into the image waveguide. Additional electronic components such as a transceiver and a circuit board are arranged within this cavity. The additional electronic components and the projector can be separated within the cavity by a partition; for example, the partition can divide the cavity into a first cavity and a second cavity, with the projector disposed in the first cavity and the additional electronic components disposed in the second cavity. The seal mates with the opening to form a fluid seal between the first cavity and the image waveguide. The seal can also mate with another opening on the housing to achieve a fluid seal in the second cavity.

Claims

CLAIMS1. A near-eye display system (10), comprising: a housing (64) including at least one chamber (64A-64B); an image light guide (46) engaged with the housing (64); and a seal (80) operatively arranged between the housing (64) and at least a portion of the image light guide (46), the seal (80) forming a fluid tight seal.

2. The near-eye display system (10) as recited in claim 1, wherein the housing (64) includes an outer wall (66A-66E) and wherein at least a portion of the outer wall (66A-66E) includes the seal (80).

3. The near-eye display system (10) as recited in claim 2, wherein the outer wall (66A- 66E) comprises a first opening (70) having a first diameter (LI), the first opening (70) forming a pathway (P) between the at least one chamber (64A-64B) and the image light guide (46).

4. The near-eye display system (10) as recited in claim 3, wherein the seal (80) comprises a through-hole (88) aligned with the first opening (70), wherein the through-hole (88) has a second diameter (L2) less than the first diameter (LI).

5. The near-eye display system (10) as recited in claim 3, wherein the seal (80) further comprises a protrusion (96) that at least partially engages the image light guide (46).

6. The near-eye display system (10) as recited in claim 4, wherein the protrusion (96) at least partially circumscribes the through-hole (88).

7. The near-eye display system (10) as recited in claim 3, further comprising a projector (124) arranged in the at least one chamber (64A-64B), the projector (124) operatively arranged to project light through the first opening (70) to the image light guide (46).

8. The near-eye display system (10) as recited in claim 1, wherein the seal (80) comprises a channel (114) and the image light guide (46) is arranged within the channel (114).

9. The near-eye display system (10) as recited in claim 1, further comprising one or more electronic components (122) arranged in the at least one chamber (64A-64B).

10. The near-eye display system (10) as recited in claim 1, wherein: the image light guide (46) comprises an inner surface (52), an outer surface (54), and a radially outward facing surface (56) extending between the inner surface (52) and the outer surface (54); and the seal (80) abuts against the inner surface (52).

11. The near-eye display system (10) as recited in claim 10, wherein the seal (80) further abuts against the radially outward facing surface (56).

12. The near-eye display system (10) as recited in claim 1, wherein: the seal (80) comprises a protrusion (96); the image light guide (46) comprises a radially outward extending projection (50); and the protrusion (96) engages the projection (50).

13. The near-eye display system (10) as recited in claim 1, wherein the seal (80) comprises: a first wall (82) including a through-hole (88); a second wall (104) spaced apart from and arranged substantially parallel to the first wall (82); and a third wall (90 or 98) connecting the first wall (82) and the second wall (104).

14. The near-eye display system (10) as recited in claim 13, wherein the first wall (82), the second wall (104), and the third wall (90 or 98) form a channel (114) and the image light guide (46) is engaged with the channel (114).

15. The near-eye display system (10) as recited in claim 1, wherein: the housing (64) comprises an outer wall (66A-66E) including a first opening (70) and a second opening (72); and the seal (80) is arranged at least partially in the first opening (70) and the second opening (72) to seal the at least one chamber (64A-64B).

16. The near-eye display system (10) as recited in claim 15, wherein:the at least one chamber (64A-64B) comprises a first chamber (64A) and a second chamber (64B) separated from the first chamber (64A) by a partition (68); the first chamber (64A) comprises the first opening (70); and the second chamber (64B) comprises the second opening (72).

17. The near-eye display system (10) as recited in claim 16, wherein the seal (80) simultaneously engages the first opening (70) and the second opening (72) to seal off the first chamber (64A) and the second chamber (64B).

18. A near-eye display system (10), comprising: a housing (64) including: an outer wall (66 A-66E); a partition (68) extending inward from the outer wall (66A-66E) and forming a first chamber (64A) and a second chamber (64B); a first opening (70) in the outer wall (66A-66E) and aligned with the first chamber (64A); and a second opening (72) in the outer wall (66A-66E) aligned with the second chamber (64B); an image light guide (46) engaged with the housing (64); and a seal (80) engaged with the first opening (70) and the second opening (72) and operatively arranged to form a fluid tight seal between the housing (64) and the image light guide (46).

19. The near-eye display system (10) as recited in claim 18, wherein the seal (80) comprises a through-hole (88) aligned with the first opening (70), the first opening (70) and the through- hole (88) forming a pathway (P) from the first chamber (64A) to the image light guide (46).

20. The near-eye display system (10) as recited in claim 18, wherein the seal (80) comprises a protrusion (96) that at least partially engages a radially outward facing projection (56) of the image light guide (46).