公开(公告)号：US20240201500A1

公开(公告)日：2024-06-20

申请号：US18508004

申请日：2023-11-13

Applicant: Apple Inc.

Inventor： Kevin A. Keilbach ,  Barbara J. Kruse ,  Vikrant Bhakta ,  Hyungryul Choi

IPC: G02B27/01 ,  G02B6/26

CPC classification number: G02B27/0172 ,  G02B6/262 ,  G02B2027/011

Abstract: A display may include a waveguide that directs image light towards an eye box within a field of view (FOV). A first lens may transmit world light to the waveguide and a second lens may transmit the world light and the image light to the eye box. One or more surfaces of the first and second lenses may collectively have a first region with a first optical power, a second region with a second optical power, a corridor with gradient optical power and constant astigmatism, and blending regions with variable astigmatism. The second region may be shifted downwards in elevation angle, the corridor may be elongated, and/or the blending regions may be disposed away from the FOV to prevent the blending regions from introducing astigmatism to the image light at the eye box.

公开(公告)号：US20240272438A1

公开(公告)日：2024-08-15

申请号：US18641244

申请日：2024-04-19

Applicant: Apple Inc.

Inventor： Vikrant Bhakta ,  Guolin Peng ,  Hyungryul Choi ,  Kevin A. Keilbach ,  Scott M. DeLapp

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B6/0016 ,  G02B6/003 ,  G02B2027/0123 ,  G02B2027/0147 ,  G02B2027/0163

Abstract: An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.

公开(公告)号：US11994681B2

公开(公告)日：2024-05-28

申请号：US17477321

申请日：2021-09-16

Applicant: Apple Inc.

Inventor： Vikrant Bhakta ,  Guolin Peng ,  Hyungryul Choi ,  Kevin A. Keilbach ,  Scott M. DeLapp

IPC: G02B27/01 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B6/0016 ,  G02B6/003 ,  G02B2027/0123 ,  G02B2027/0147 ,  G02B2027/0163

Abstract: An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.

公开(公告)号：US20220004007A1

公开(公告)日：2022-01-06

申请号：US17477321

申请日：2021-09-16

Applicant: Apple Inc.

Inventor： Vikrant Bhakta ,  Guolin Peng ,  Hyungryul Choi ,  Kevin A. Keilbach ,  Scott M. DeLapp

IPC: G02B27/01 ,  F21V8/00

Abstract: An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.