公开(公告)号：US11876952B2

公开(公告)日：2024-01-16

申请号：US17648794

申请日：2022-01-24

Applicant: Microsoft Technology Licensing, LLC

Inventor： Dmitriy Churin ,  Parry Byron Johnson ,  Dmitry Reshidko ,  Congshan Wan

IPC: H04N13/327 ,  H04N13/344 ,  H04N13/341 ,  H04N13/363 ,  H04N13/398 ,  G02B27/01

CPC classification number: H04N13/327 ,  G02B27/0172 ,  H04N13/341 ,  H04N13/344 ,  H04N13/363 ,  H04N13/398 ,  G02B2027/0134 ,  G02B2027/0178

Abstract: Examples are disclosed that relate to calibration of a stereoscopic display system of an HMD via an optical calibration system comprising a waveguide combiner. One example provides an HMD device comprising a first image projector and a second image projector configured to project a stereoscopic image pair, and an optical calibration system. The optical calibration system comprises a first optical path indicative of an alignment of the first image projector, a second optical path indicative of an alignment of the second image projector, a waveguide combiner in which the first and second optical paths combine into a shared optical path, and one or more boresight sensors configured to detect calibration image light traveling along one or more of the first optical or the second optical path.

公开(公告)号：US12244977B2

公开(公告)日：2025-03-04

申请号：US17584976

申请日：2022-01-26

Applicant: Microsoft Technology Licensing, LLC.

Inventor： Parry Byron Johnson ,  Dmitriy Churin ,  Dmitry Reshidko

IPC: H04N9/31

Abstract: A projection system includes an illumination light source configured to emit an illumination light beam, a monitor light source configured to emit a monitor light beam, and a projector configured to project both the illumination light beam and the monitor light beam into a projected combined light beam. A first portion of the projected combined light beam is propagated over a first beam path in a first direction, causing an eye of a user to see a display image. A second portion of the projected combined light beam is propagated over a second beam path in a second direction, causing a monitor camera to capture a monitor image. The monitor image is analyzed to determine an orientation or a position of the monitor image. In response to determining that the monitor image is not properly oriented or positioned, an orientation or position of the projector or the illumination image is adjusted.