# US 2024/0201467 A1 · Eye strain reduction in head mountable display

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- Number: US 2024/0201467 A1
- Document ID: US20240201467A1
- Status: Published application
- Kind: A1
- Application number: 18/390,794
- Filed: 2023-12-20
- Published: 2024-06-20
- Earliest claimed: 2022-12-20
- Assignees: Meta Platforms Technologies, LLC
- Applicants: Meta Platforms Technologies, LLC
- Inventors: Joel Bernard Jacobs; Joseph Patrick Sullivan; Meng Peng; Jeffrey Taylor Stellman; Brandon Tran; Sarah Bethel
- Web page: https://patentgrep.com/patent/US20240201467A1

## CPC

- G02B 7/023: {permitting adjustment}
- G02B 7/021: {for more than one lens}
- G02B 27/0176: {characterised by mechanical features}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

Systems, devices, and methods for eye strain reduction in head mountable displays are disclosed. The system may include an adjustable facial interface bracket and an extender bracket that can be coupled to the head mountable display device. An actuating mechanism may be incorporated to define the spatial distance between the facial interface bracket and the extender bracket. This may allow users to customize the distance between their eyes and the display panel, reducing eye strain and improving the overall comfort of the head mountable display. The system may offer a flexible and user-friendly solution to enhance the user experience and alleviate eye strain in head mountable displays.

## Claims

### Claim 1

A device comprising:
a facial interface bracket configured to engage a user;
an extender bracket coupled to a head display device and the facial interface bracket; and
an actuating mechanism coupled to at least one of the facial interface bracket and the extender bracket, where in the actuating mechanism define a spatial distance between a surface of the facial interface bracket and a surface of the extender bracket.

### Claim 2 (depends on 1)

The device of claim 1, wherein the actuating mechanism comprises a plug-and-groove interface.

### Claim 3 (depends on 1)

The device of claim 1, wherein the actuating mechanism comprises a slider.

### Claim 4 (depends on 1)

The device of claim 1, wherein the actuating mechanism comprises a cantilever.

### Claim 5 (depends on 1)

The device of claim 1, wherein the actuating mechanism comprises a biased latch.

### Claim 6 (depends on 1)

The device of claim 1, further comprising a locking insert on the extender bracket.

### Claim 7 (depends on 1)

The device of claim 1, further comprising a button for actuating the actuating mechanism.

### Claim 8 (depends on 1)

The device of claim 1, wherein the actuating mechanism comprises one or both of an elastic material or a flexible material.

### Claim 9 (depends on 1)

The device of claim 1, further comprising an alignment fixture on the facial interface bracket.

### Claim 10 (depends on 1)

The device of claim 1, further comprising a latch housing on the facial interface bracket.

### Claim 11 (depends on 1)

The device of claim 1, further comprising a biased spring latch on the extender bracket.

### Claim 12 (depends on 1)

The device of claim 1, further comprising a plurality of grooves on the facial interface bracket.

### Claim 13 (depends on 1)

The device of claim 1, further comprising a plurality of grooves on the extender bracket.

### Claim 14

A method for manufacturing a device, the method comprising:
providing a facial interface bracket configured to engage a user;
coupling an extender bracket to a head display device and the facial interface bracket;
coupling an actuating mechanism to at least one of the facial interface bracket and the extender bracket, wherein the actuating mechanism defines a spatial distance between a surface of the facial interface bracket and a surface of the extender bracket;
adjusting the actuating mechanism to set the desired distance between the facial interface bracket and the extender bracket; and
securing the actuating mechanism to maintain the set distance between the facial interface bracket and the extender bracket.

### Claim 15 (depends on 14)

The method of claim 14, wherein the actuating mechanism comprises a plug-and-groove interface.

### Claim 16 (depends on 14)

The method of claim 14, wherein the actuating mechanism comprises a slider.

### Claim 17 (depends on 14)

The method of claim 14, wherein the actuating mechanism comprises a cantilever.

### Claim 18 (depends on 14)

The method of claim 14, further comprising providing a locking insert on the extender bracket.

### Claim 19 (depends on 14)

The method of claim 14, further comprising providing an orifice on the extender bracket for displaying numerical indicators.

### Claim 20

A device comprising:
a facial interface bracket configured to engage a user;
an extender bracket coupled to a head display device and the facial interface bracket; and
an actuating mechanism coupled to at least one of the facial interface bracket and the extender bracket;
wherein the actuating mechanism defines a spatial distance between a surface of the facial interface bracket and a surface of the extender bracket;
wherein the actuating mechanism comprises a plug-and-groove interface, a slider, and a cantilever;
wherein the cantilever is actuated by pressing a button; and
wherein the cantilever flexes along a portion coupled to the surface of the extender bracket when the button is pressed.