US 9,870,049 B2 · Reflective lenses to auto-calibrate a wearable system

Abstract

Example embodiments include a lens having an IR-reflective coating that is selectively applied to form a variable infrared (IR) interaction pattern on the lens. The variable IR interaction pattern may vary in the manner it interacts with IR wavelengths, so as to provide a machine-readable code when the lens is illuminated by IR light. Accordingly, variable IR interaction patterns may be used to identify particular lenses. Accordingly, a glasses-style, modular, head-mountable device (HMD) may identify which of a number of different possible lenses are currently attached to the HMD, and update certain processes according to the lens or lenses is or are attached. For example, an HMD may calibrate an eye-tracking process according to the particular lens that is attached.

Claims20

Dependent claims

A method comprising:

receiving, by a computing system, infrared (IR) image data of an inner surface of a lens of a head-mountable device (HMD), wherein the image data is captured while the inner surface of the lens is illuminated with infrared light;
detecting, by the computing system, in the IR image data of the inner surface of the lens, a reflection of an eye area on the inner surface of the lens;
detecting, by the computing system, in the IR image data of the inner surface of the lens, a variable IR interaction pattern of the lens;
determining, by the computing system, a lens that corresponds to the detected variable IR interaction pattern;
calibrating, by the computing system, an eye-analysis process based on the determined lens;
and
after calibrating the eye-analysis process, applying the eye-analysis process to the reflection of the eye area to determine data corresponding to an eye.

4 more elements

Dependencies are inferred from the claim text.

Reflective lenses to auto-calibrate a wearable system

Life of this patent

Reflective lenses to auto-calibrate a wearable system

Life of this patent

Abstract

Claims20