Oculus Patent | Devices and methods for lens alignment based on encoded color patterns

Patent: Devices and methods for lens alignment based on encoded color patterns

Publication Number: 20190018216

Publication Date: 2019-01-17

Applicants: Oculus

Abstract

A head-mounted display device includes a first light element configured to transmit a first light having a first color; a second light element configured to transmit a second light having a second color; a first lens configured for directing the first light in a first direction and directing the second light in a second direction; and a first set of one or more lenses configured for directing the first light and the second light from the first lens toward a first eye of a user. Also disclosed is a method that includes transmitting a first light and a second light through a first lens and a first set of one or more lenses and directing the first light and the second light toward a first eye of a user. Further disclosed is a method for adjusting a position of one or more lenses.

Background

Head-mounted display devices (also called herein head-mounted displays) are gaining popularity as means for providing visual information to user. Different users can have different interpupillary distances, and it is important to set up a head-mounted display device for the correct interpupillary distance of a user, as an incorrect interpupillary distance can cause visual distortion.

However, determining an accurate interpupillary distance has often required professional assistance (e.g., a measurement by an optician). In the absence of such professional assistance, users often set up display devices for incorrect interpupillary distances, which reduces the quality of user experience with such devices.

Summary

Accordingly, there is a need for an improved method and an improved device for adjusting an interpupillary distance, thereby improving the user experience with display devices.

The above deficiencies and other problems are reduced or eliminated by the disclosed devices and methods.

In accordance with some embodiments, a device includes a first light source device configured to transmit a first light in a first direction and a second light in a second direction that is distinct from the first direction; and a first set of one or more lenses configured for directing the first light and the second light from the first light source device toward a first eye of a user. The first light is spatially offset from the second light and one or more of the first light and the second light provide a cue for adjusting a location of the first set of one or more lenses.

In accordance with some embodiments, a method includes transmitting a first light in a first direction and a second light that is distinct from the first light in a second direction that is distinct from the first direction; and transmitting the first light and the second light through a first set of one or more lenses and directing the first light and the second light toward a first eye of a user. The first light is spatially offset from the second light and one or more of the first light and the second light provide a cue for adjusting a location of the first set of one or more lenses.

In accordance with some embodiments, a method includes receiving a portion of a bundle of light that includes a first light and a second light that is distinct from the first light and laterally offset from the first light; and, in accordance with a determination that the received portion of the bundle of light corresponds to the first light, moving the first set of one or more lenses.

In accordance with some embodiments, a head-mounted display device includes a first light source device that includes a first light element configured to transmit a first light having a first color; a second light element configured to transmit a second light having a second color that is distinct from the first color, the second light element being distinct and separate from the first light element; and a first lens configured for directing the first light from the first light element in a first direction and directing the second light from the second light element in a second direction that is distinct from the first direction. The device also includes a first set of one or more lenses configured for directing the first light and the second light from the first lens toward a first eye of a user.

In accordance with some embodiments, a method includes transmitting, to a first lens from a first light element, a first light having a first color; transmitting, to the first lens from a second light element that is distinct and separate from the first light element, a second light having a second color that is distinct from the first color; directing, with the first lens, the first light from the first light element in a first direction and the second light from the second light element in a second direction that is distinct from the first direction; and directing, with a first set of one or more lenses, the first light and the second from the first lens toward a first eye of a user.

In accordance with some embodiments, a method includes receiving, with a first eye of a user, a portion of a first bundle of light that includes a first light and a second light that is distinct from the first light and laterally offset from the first light, the first light and the second light having been transmitted through a first set of one or more lenses; and, in accordance with a determination that the received portion of the bundle of light corresponds to the second light, adjusting a position of the first set of one or more lenses.

Thus, the disclosed embodiments provide devices and methods that facilitate accurate determination and/or adjustment of interpupillary distances.

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