公开(公告)号：US11669159B2

公开(公告)日：2023-06-06

申请号：US17208880

申请日：2021-03-22

Applicant: Microsoft Technology Licensing, LLC

Inventor： Dmitry Reshidko ,  Congshan Wan

IPC: G06F3/01 ,  G06V40/18 ,  G06V10/60 ,  G06V40/19 ,  G02B27/00 ,  G02B27/01 ,  G06T19/00

CPC classification number: G06F3/013 ,  G02B27/0093 ,  G02B27/0172 ,  G06T19/006 ,  G06V10/60 ,  G06V40/19 ,  G06V40/197 ,  G02B2027/0174

Abstract: In a see-through waveguide-based HMD device configured to display holographic virtual images within a field of view (FOV) of the device user, a single pixel or group of pixels are lit to supply illumination at known locations on the display that is reflected from the user's eyes and captured by one or more sensors in an eye tracker. The eye tracker may apply real-time image analysis to the captured reflected light, called “glints,” to extract features of the user's eyes to determine where the HMD device user is looking—the gaze point—and calculate eye movement, location, and orientation. A negative lens functionality utilized in the HMD device to provide a fixed focal depth for the virtual images enables the lit pixels to function as virtual glint sources for the eye tracker sensor that are located at the fixed focal depth and from multiple illumination positions within the user's FOV.

公开(公告)号：US11227528B2

公开(公告)日：2022-01-18

申请号：US16888043

申请日：2020-05-29

Applicant: Microsoft Technology Licensing, LLC

Inventor： Abhijit Sarkar ,  Dmitry Reshidko ,  Tuomas Heikki Sakari Vallius

IPC: H04N9/73 ,  G09G3/20 ,  G09G3/32 ,  G02B27/01

Abstract: A method for setting a display white point comprises displaying images with a display including at least a first light source and a second light source. The first light source is configured to emit light having a first color and having a first temperature-dependent luminance change. The second light source is configured to emit light having a second color and having a second temperature-dependent luminance change. An internal display temperature is measured. Based on the internal display temperature being a first temperature, a first target white point is set to prioritize color accuracy. Based on the internal display temperature being a second temperature, greater than the first temperature, a second target white point is set to prioritize luminance output.

公开(公告)号：US10976811B2

公开(公告)日：2021-04-13

申请号：US15675349

申请日：2017-08-11

Applicant: Microsoft Technology Licensing, LLC

Inventor： Nicholas Mark Cirucci ,  Joseph Daniel Lowney ,  Richard Andrew Wall ,  Dmitry Reshidko ,  Ian Anh Nguyen

IPC: G06F3/01 ,  G02B26/08 ,  G02B27/01 ,  G02B27/00 ,  G02B5/08 ,  H04N5/225 ,  H04N5/33 ,  H04N5/341

Abstract: An eye-tracking system is provided. The system includes an at least partially transparent visible light waveguide having a visible light display region configured to emit visible light to impinge upon an eye of a user. A light source is configured to emit at least infrared (IR) light that travels along an IR light path to impinge on the eye. A microelectromechanical system (MEMS) scanning mirror positioned in the IR light path is configured to direct the IR light along the IR light path. A relay positioned in the IR light path downstream of the MEMS scanning mirror includes at least one mirror configured to reflect the IR light along the IR light path. At least one sensor is configured to receive the IR light after being reflected by the eye.

公开(公告)号：US10650785B1

公开(公告)日：2020-05-12

申请号：US16281778

申请日：2019-02-21

Applicant: Microsoft Technology Licensing, LLC

Inventor： Pietari Tuomisto ,  William J. Cummings ,  Dmitry Reshidko ,  Tuomas Vallius ,  David Douglas Bohn

IPC: G09G5/02 ,  G09G3/02 ,  G06T7/30 ,  G09G3/00 ,  G09G3/32 ,  G06T7/70

Abstract: MicroLED arrays offer a small form factor solution for the HMD image sources since they do not need a separate illumination optics. Features of the present disclosure implement a MicroLED display system that incorporate a plurality of monochrome projectors (e.g., three MicroLED projectors) to generate three monochrome images (e.g., red, blue, and green images) that are separately input into a single waveguide of the HMD and combined to form an image that is displayed to the user. By utilizing a single waveguide that includes a plurality of spatially separated input regions (e.g., a region for inputting blue light, a region for inputting red light, a region for inputting green light), the MicroLED display system of the present disclosure may reduce the form factor of the HMD device because of the reduced number of plates that may be required to combine the three monochrome images.

公开(公告)号：US10310268B2

公开(公告)日：2019-06-04

申请号：US15370897

申请日：2016-12-06

Applicant: Microsoft Technology Licensing, LLC

Inventor： R. Andrew Wall ,  Dmitry Reshidko

IPC: G02B27/01 ,  G02B27/00 ,  F21V8/00 ,  G02B27/14

Abstract: An apparatus, for use in replicating an image associated with an input-pupil to an output-pupil, comprises an optical waveguide including a bulk-substrate, an input-coupler and an output-coupler. The bulk-substrate includes first and second major sides and peripheral sides. The input-coupler couples, into the waveguide, light corresponding to the image associated with the input-pupil. The output-coupler couples, out of the waveguide, light corresponding to the image that has traveled through the waveguide from the input-coupler to the output-coupler at least in part by way of TIR. At least one of the peripheral sides includes first and second surfaces that define first and second planes angled 45 degrees relative to one another. Such a peripheral side provides for effective recycling of light that would otherwise leak out of the waveguide through the peripheral side.