Hmd visor assembly

Patent metadata

Field	Value
Publication number	US-2020271933-A1
Application number	US-201916393600-A
Country	US
Kind code	A1
Filing date	Apr 24, 2019
Priority date	Feb 23, 2019
Publication date	Aug 27, 2020
Grant date	—

Abstract

Head-mounted display visor assembly. A head mounted display visor assembly includes a molded world-facing visor coupled to a separately molded user-facing bathtub. The visor includes an IR opaque and visual light opaque portion coupled to a separately manufactured IR permissive portion. The visor also includes an IR opaque portion. The bathtub includes an IR permissive, but visual light opaque portion and a visual light permissive portion.

First claim

What is claimed is:

1 . A head mounted display visor assembly comprising:
a molded visor, the visor comprising:
an IR opaque region;
an IR opaque and visual light opaque region at a top of the visor adjacent to, and above the IR opaque region; and
a separately manufactured IR window coupled to the IR opaque and visual light opaque region; and
a separately molded bathtub coupled to the visor, the bathtub comprising:
an IR permissive, but visual light opaque region at a top of the bathtub; and
a visual light permissive portion adjacent the visual light opaque region.

2 . The head mounted display visor assembly of claim 1 , wherein the visor is coupled to the bathtub via a UV cured clear adhesive.

3 . The head mounted display visor assembly of claim 1 , wherein the IR opaque region of the visor is comprised of an IR absorption dye.

4 . The head mounted display visor assembly of claim 1 , wherein the IR opaque and visual light opaque region at a top of the visor comprises an evaporative coating.

5 . The head mounted display visor assembly of claim 1 , wherein the IR permissive, but visual light opaque region at a top of the bathtub comprises a visual light opaque paint.

6 . The head mounted display visor assembly of claim 1 , the visual light permissive portion of the bathtub is configured to operate as at least part of an optical system for focusing one or more holograms displayed by a head mounted display at a predefined distance from the head mounted display visor assembly.

7 . The head mounted display visor assembly of claim 1 , wherein a linear gradient separates the IR opaque and visual light opaque region at the top of the visor from the IR opaque region of the visor, such that the linear gradient forms a gradient between the IR opaque region of the visor and the IR opaque and visual light opaque region at the top of the visor.

8 . A method for manufacturing a head mounted display visor assembly, the method comprising:
obtaining a molded visor composed of a polycarbonate resin and an infrared (IR) absorption dye, wherein the molded visor includes a window frame for receiving a separately manufactured IR window; applying a visible light opaque evaporative coating to a top portion of the molded visor to form an IR opaque and visible light opaque region, which is separate from an IR opaque region of the molded visor; obtaining a separately molded bathtub composed of a polycarbonate resin which transmits both IR and visible light; and applying a visible light opaque but IR permissive coating to a top portion of the separately molded bathtub to form an IR permissive, but visible light opaque region, which is separate from a visible light permissive region of the separately molded bathtub.

9 . The method of claim 8 , further comprising:
applying a linear gradient evaporative coating to the molded visor that serves as a gradient between the IR opaque region and the IR opaque and visible light opaque region.

10 . The method of claim 8 , further comprising:
applying an antireflective coating to the molded visor and the separately molded bathtub.

11 . The method of claim 8 , wherein the molded visor and the separately molded bathtub include overlapping extensions for aligning the molded visor with the separately molded bathtub.

12 . The method of claim 11 , wherein a blocking wall separates an overlapping extension of the separately molded bathtub from the visible light permissive region and the IR permissive, but visible light opaque region of the separately molded bathtub, wherein the blocking wall is situated to prevent an adhesive from overflowing onto the visible light permissive region and the IR permissive, but visible light opaque region.

13 . The method of claim 12 , further comprising:
bonding the molded visor to the separately molded bathtub by applying an adhesive to the overlapping extensions of the molded visor and the separately molded bathtub.

14 . The method of claim 13 , further comprising:
removing a portion of the overlapping extensions of the molded visor and the separately molded bathtub.

15 . The method of claim 8 , further comprising:
affixing the separately manufactured IR window to the window frame of the molded visor, wherein the separately manufactured IR window blocks visible light but transmits IR light.

16 . A method for using a head mounted display visor assembly, the method comprising:
obtaining a head mounted display including a head mounted display visor assembly, the head mounted display visor assembly comprising:
a molded visor, the molded visor comprising:
an IR opaque region;
an IR opaque and visible light opaque region at a top of the molded visor adjacent to, and above the IR opaque region; and
a separately manufactured IR window coupled to the IR opaque and visible light opaque region; and

a separately molded bathtub coupled to the molded visor, the separately molded bathtub comprising:
an IR permissive, but visible light opaque region at a top of the separately molded bathtub; and
a visible light permissive region adjacent to the IR permissive, but visible light opaque region; and

displaying one or more holograms on a display of the head mounted display situated between the molded visor and the separately molded bathtub of the head mounted display visor assembly, such that display light from the display transmits through the visible light permissive region of the separately molded bathtub to an eye of a user, and wherein the separately molded bathtub operates as at least part of an optical system of the head mounted display for focusing the one or more holograms at a predefined distance from the head mounted display visor assembly.

17 . The method of claim 16 , further comprising:
transmitting visible environmental light from a real-world environment of the user through the IR opaque region, the display, and the visible light permissive region to the eye of the user.

18 . The method of claim 16 , further comprising:
transmitting eye tracking IR light through the IR permissive, but visible light opaque region of the separately molded bathtub to the eye of the user.

19 . The method of claim 16 , further comprising:
transmitting IR environmental light reflections from a real-world environment of the user through the separately manufactured IR window while absorbing the IR environmental light reflections at the IR opaque region and the IR opaque and visible light opaque region of the molded visor.

20 . The method of claim 16 , further comprising:
absorbing visible environmental light from a real-world environment of the user at the IR opaque and visible light opaque region of the molded visor and the IR permissive, but visible light opaque region of the separately molded bathtub.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Poulad Navid
• Robbins Steven John
• Boddapati Srinivasarao

Classifications

• G02B27/0172 Primary

  characterised by optical features · CPC title

• G02B2027/0174

  holographic · CPC title

• G02B5/208 Primary

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title

• G02B2027/0187

  slaved to motion of at least a part of the body of the user, e.g. head, eye · CPC title

• G02B27/0179

  Display position adjusting means not related to the information to be displayed · CPC title