公开(公告)号：US20180218210A1

公开(公告)日：2018-08-02

申请号：US15937851

申请日：2018-03-27

Applicant: Microsoft Technology Licensing, LLC

Inventor： Andreas Georgiou ,  Joel Steven Kollin ,  Sing Bing Kang

IPC: G06K9/00 ,  B29C64/00

CPC classification number: G06K9/00536 ,  A63F13/213 ,  B29C64/00 ,  B29C64/386 ,  G01B11/22 ,  G01B11/25 ,  G01B11/2513 ,  G01B11/2527 ,  G01B11/2545 ,  G02B5/1895 ,  G02B27/4205 ,  G02B27/4233 ,  G02B27/44 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0683 ,  G06F9/3004 ,  G06F9/30043 ,  G06F9/30127 ,  G06F11/3024 ,  G06F12/00 ,  G06F12/02 ,  G06F12/0207 ,  G06F12/0292 ,  G06K9/00201 ,  G06K9/0063 ,  G06K9/62 ,  G06T1/60 ,  G06T7/00 ,  G06T7/586 ,  G06T2207/30244 ,  H04N5/2256 ,  H04N5/33 ,  H04N5/332 ,  H04N9/045 ,  H04N13/128 ,  H04N13/239 ,  H04N13/25 ,  H04N13/254 ,  H04N13/271 ,  H04N17/002 ,  H04N2013/0081

Abstract: Aspects of the subject disclosure are directed towards safely projecting a diffracted light pattern, such as in an infrared laser-based projection/illumination system. Non-diffracted (zero-order) light is refracted once to diffuse (defocus) the non-diffracted light to an eye safe level. Diffracted (non-zero-order) light is aberrated twice, e.g., once as part of diffraction by a diffracting optical element encoded with a Fresnel lens (which does not aberrate the non-diffracted light), and another time to cancel out the other aberration; the two aberrations may occur in either order. Various alternatives include upstream and downstream positioning of the diffracting optical element relative to a refractive optical element, and/or refraction via positive and negative lenses.

公开(公告)号：US20170315362A1

公开(公告)日：2017-11-02

申请号：US15650697

申请日：2017-07-14

Applicant: Microsoft Technology Licensing, LLC

Inventor： Adrian Travis ,  Joel S. Kollin ,  Andreas Georgiou

IPC: G02B27/01 ,  G06F3/01 ,  G02B26/08 ,  G02C9/00 ,  G03B21/10 ,  G03H1/02 ,  G06F1/16 ,  H04N7/18 ,  G02B5/18 ,  G02B27/00

CPC classification number: G02B27/0172 ,  G02B5/1828 ,  G02B26/0808 ,  G02B27/0093 ,  G02B27/0103 ,  G02B2027/0105 ,  G02B2027/011 ,  G02B2027/0123 ,  G02B2027/013 ,  G02B2027/0174 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02B2027/0194 ,  G02C9/00 ,  G03B21/10 ,  G03H1/0248 ,  G03H1/2205 ,  G03H1/2294 ,  G03H1/265 ,  G03H2223/16 ,  G03H2223/23 ,  G03H2225/32 ,  G06F1/163 ,  G06F3/013 ,  H04N7/183

Abstract: A display includes a projector configured to provide light of a virtual image, a waveguide into which the light of the virtual image is injected at an injection angle by the projector, and a combiner disposed along the waveguide and configured to redirect the light of the virtual image. The waveguide is configured to emit the light at a point established by the injection angle. The combiner is further configured to allow ambient light from beyond the waveguide to pass through the combiner. The waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner.

公开(公告)号：US20170248825A1

公开(公告)日：2017-08-31

申请号：US15257581

申请日：2016-09-06

Applicant: Microsoft Technology Licensing, LLC

Inventor： Andreas Georgiou ,  Joel S. Kollin

IPC: G02F1/1343 ,  G02F1/13363 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G02F1/134309 ,  B82Y30/00 ,  G02B5/0816 ,  G02F1/133345 ,  G02F1/133504 ,  G02F1/133509 ,  G02F1/133553 ,  G02F1/13363 ,  G02F1/13439 ,  G02F1/292 ,  G02F2001/13356 ,  G02F2001/133638 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/305 ,  G02F2202/36 ,  G02F2202/42 ,  G02F2203/12 ,  G02F2413/01 ,  G03H1/02 ,  G03H1/2202 ,  G03H2001/0224 ,  G03H2223/20 ,  G03H2223/24 ,  G03H2223/50 ,  G03H2223/53 ,  G03H2225/32 ,  G03H2225/52 ,  G03H2225/55 ,  H01L51/0048 ,  H01L51/102

Abstract: Examples are disclosed relating to reducing orders of diffraction patterns in phase modulating devices. An example phase modulating device includes a phase modulating layer having first and second opposing sides, a common electrode adjacent the first side of the phase modulating layer, a plurality of pixel electrodes adjacent the second side of the phase modulating layer, and blurring material disposed between the phase modulating layer and the pixel electrodes. In the example phase modulating device, the blurring material is configured to smooth phase transitions in the phase modulating layer between localized areas associated with the pixel electrodes, the pixel electrodes have a pixel pitch by which the pixel electrodes are distributed along the phase modulating layer, and the pixel electrodes are separated from one another by an inter-pixel gap, where the ratio of the inter-pixel gap to the pixel pitch is between 0.50 and 1.0.