US 12,416,803 B2 · Electronic device and operating method thereof

Abstract

Provided is an electronic device including an optical engine including a projection lens configured to project light of a virtual image, a waveguide including an input grating on which the light of the virtual image is incident, an actuator configured to adjust a position of the projection lens relative to an optical axis of the projection lens, a light sensor configured to detect light passing through the input grating, a memory configured to store one or more instructions, and a processor configured to execute the one or more instructions to obtain a degree of parallelism of the light detected by the light sensor, obtain, based on the degree of parallelism of the light, a position adjustment value of the projection lens to detect light, and control the actuator to adjust a distance between the projection lens and the waveguide based on the position adjustment value.

Claims18

Dependent claims

An electronic device comprising:

an optical engine comprising a projection lens configured to project light of a virtual image;
a waveguide comprising an input grating on which the light of the virtual image is incident;
an actuator configured to adjust a position of the projection lens relative to an optical axis of the projection lens;
a light sensor configured to detect light passing through the input grating;
a memory storing one or more instructions;
and
a processor configured to execute the one or more instructions to:
obtain a degree of parallelism of the light detected by the light sensor;
and
control the actuator to adjust a distance between the projection lens and the waveguide based on the degree of parallelism of the light.

7 more elements

An operating method of an electronic device comprising a projection lens configured to project light of a virtual image, the operating method comprising:

detecting, by a light sensor of the electronic device, light passing through an input grating of a waveguide on which the light of the virtual image is incident;
obtaining a degree of parallelism of the light detected by the light sensor;
and
controlling an actuator of the electronic device to adjust a distance between the projection lens and the waveguide, based on the degree of parallelism of the light.

1 more element

A non-transitory computer-readable recording medium having recorded thereon a program for executing an operating method of an electronic device comprising a projection lens configured to project light of a virtual image on a computer, the operating method comprising:

detecting, by a light sensor of the electronic device, light passing through an input grating of a waveguide on which the light of the virtual image is incident;
obtaining a degree of parallelism of the light detected by the light sensor;
and
controlling an actuator of the electronic device to adjust a distance between the projection lens and the waveguide based on the degree of parallelism of the light.

1 more element

Dependencies are inferred from the claim text.

Electronic device and operating method thereof

Life of this patent

Electronic device and operating method thereof

Life of this patent

Abstract

Claims18