US 2025/0093664 A1 · OPTICAL ARRANGEMENT FOR A DISPLAY

Abstract

An optical arrangement to transmit an image from an image plane to a user's eye. The arrangement providing a folded optical transmission path comprising a collimating element, having a first optical element with a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface. The collimating element to receive light forming the image from an image source and collimate and output the light. The optically powered surfaces having a plurality of interfaces along the folded optical path. A refractive index change at each interface is predetermined to control the direction of light passing through each interface. One surface of each of the first and the second optical elements being adjacent to one another. The adjacent surfaces having dissimilar shapes and each defining an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces.

Claims20

Dependent claims

A folded-optical arrangement to use in a display, the display to transmit an image from an image plane to a user's eye, the folded-optical arrangement providing a folded-optical-transmission path and comprising:

a collimating element having at least a first optical element comprising a first plurality of optically-powered surfaces, the collimating element configured to receive light forming the image from the image plane and to collimate and output the light, the collimating element being arranged such that, in use, the user's eye can view the image plane and does not look through the collimating element to view an exterior environment.

a collimating element having a first optical element and a second optical element, the first optical element comprising a first plurality of surfaces including two or more optically-powered surfaces, and the second optical element comprising a second plurality of surfaces including at least one optically-powered surface, the collimating element configured to receive light forming the image from an image source in the image plane, and to collimate and output the light, the collimating element being arranged such that, in use, the user's eye can view the image plane and does not look through the collimating element to view an exterior environment.

A folded-optical arrangement to use in a display, the display to transmit an image from an image plane to a user's eye, the folded-optical arrangement providing a folded optical-transmission path and comprising:

a collimating element having a first optical element and a second optical element, the collimating element configured to receive light forming the image from an image source, and to collimate and output the light, the collimating element being arranged such that, in use, the user's eye can view the image plane and does not look through the collimating element to view an exterior environment;
and
a third optical element comprising at least one optically-powered surface that is located between the image plane and the first optical element.

Dependencies are inferred from the claim text.

Optical arrangement for a display

Life of this patent

Optical arrangement for a display

Life of this patent

Abstract

Claims20