公开(公告)号：US20240184117A1

公开(公告)日：2024-06-06

申请号：US18440812

申请日：2024-02-13

Applicant: Apple Inc.

Inventor： Scott M. DeLapp ,  Vikrant Bhakta ,  Di Hu ,  Guolin Peng ,  Darshan R Kasar ,  John Raff

IPC: G02B27/01 ,  G02B6/34

CPC classification number: G02B27/0172 ,  G02B6/34 ,  G02B2027/0174

Abstract: A display system may include a waveguide, an input coupler with a first surface relief grating (SRG), and an output coupler with a second SRG. A display module may produce image light that is coupled into the waveguide by the first SRG. The first SRG may have an input vector non-parallel with respect to a normal axis of the waveguide. The display module may have an optical axis tilted with respect to the input vector by a non-zero angle. A prism may redirect the image light from the module to the first SRG in a direction parallel to the input vector. The module may include lens elements with an optical axis offset with respect to the center of the field of the image light. This may cause the lens elements to output the image light in a direction parallel to the input vector of the first SRG.

公开(公告)号：US20240210712A1

公开(公告)日：2024-06-27

申请号：US18435103

申请日：2024-02-07

Applicant: Apple Inc.

Inventor： Darshan R Kasar ,  Christopher Patton ,  Dominic P Cincione ,  Ivan S Maric ,  Nicholas C Soldner

IPC: G02B27/01 ,  G01C21/16 ,  G06T3/18 ,  G06T5/80

CPC classification number: G02B27/0179 ,  G01C21/16 ,  G02B27/0172 ,  G06T3/18 ,  G06T5/80 ,  G02B2027/0178

Abstract: A head-mounted device such as a pair of glasses may have a head-mounted housing. The head-mounted device may include displays such as projector displays and may include associated optical components. The optical components may include waveguides that are used in providing images received from the displays to corresponding eye boxes for viewing by a user. Changes in the relative orientation between the displays and waveguides may warp the images in the eye boxes. To compensate for this effect, control circuitry in the head-mounted device may use position sensors to measure the relative positions of the displays and waveguides. Image warping due to misalignment between the displays and waveguides may be removed by applying compensating image warping to the images being produced by the displays.