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41. 发明专利

AU2017201669B2 Apparatus for optical see-through head mounted display with mutual occlusion and opaqueness control capability 未知
公开(公告)号：AU2017201669B2
公开(公告)日：2019-02-07
申请号：AU2017201669
申请日：2017-03-10
申请人： MAGIC LEAP INC
发明人： GAO CHUNYU , LIN YUXIANG , HUA HONG
IPC分类号： G02B27/01
摘要： Disclosed is an optical see-through head-mounted display system, configured to combine a see through path with a virtual view path such that an opaqueness of a see-through view can be modulated to occlude portions of the see-through path. Also disclosed is a method of combining a virtual image on a virtual image path with external light from an external scene on a see through path.

42. 发明专利

NZ740631A Occluding in freeform optical relay system with beamsplitters 未知
公开(公告)号：NZ740631A
公开(公告)日：2018-12-21
申请号：NZ74063113
申请日：2013-04-05
申请人： MAGIC LEAP INC
发明人： GAO CHUNYU , HUA HONG , LIN YUXIANG
IPC分类号： G02B27/01
摘要： The present invention relates to the field of head mounted displays. In one aspect there is provided a compact optical see-through head-mounted display, capable of combining a see- through path with a virtual view path such that the opaqueness of the see-through path can be modulated and the virtual view occludes parts of the see-through view and vice versa, the display comprising: a microdisplay for generating an image to be viewed by a user, the microdisplay having a virtual view path associated therewith; a reflection-type spatial light modulator for modifying the light from an external scene to block portions of the see-through view that are to be occluded, the spatial light modulator having a see-through path associated therewith; an objective optics, facing an external scene, configured to receive the incoming light from the external scene and to focus the light upon the spatial light modulator, where the objective optics is a two-reflection freeform prism comprising four optical freeform surfaces: refractive surface S4, reflective surface S5, S4’ and refractive surface S6; a first beamsplitter configured to reflect the see-through path onto a mirror; a relay lens configured to generate another intermediate image upon the spatial light modulator; a second beam splitter configured to merge a virtual image from a microdisplay and a modulated see-through image of an external scene passing from a spatial light modulator, producing a combined image; an eyepiece configured to magnify the combined image, where the eyepiece is a two-reflection freeform prism, comprising four optical freeform surfaces: refractive surface S1, reflective surface S2, reflective surface S1 and refractive surface S3; an exit pupil configured to face the eyepiece, the exit pupil whereupon the user observes the combined view of the virtual and see-through views in which the virtual view occludes portions of the see-through view; and a mirror to fold the see-through path. The objective optics is disposed upon the front layer of the display, where the first beam splitter is disposed upon the front layer of the display. The mirror is disposed upon the front layer of the display at the focal plane of the objective optics, facing the spatial light modulator. The spatial light modulator is disposed on the back layer of the display, facing the second beam splitter. The relay is disposed between the first and the second beam splitters. The microdisplay is disposed on the back layer of the display, facing the second beam splitter. The second beam splitter is disposed on the back layer such that the direction of light transmission from second the beam splitter is facing the eyepiece. The eyepiece is disposed upon the back layer of the display. The incoming light from the external scene enters the objective optics through the refractive surface S4, consecutively reflects upon the reflective surfaces S5, S4’, and exits objective optics through the refractive surface S6. The incoming light is reflected by the first beam splitter onto the mirror, where it forms an intermediate image. The mirror reflects the light from the front layer onto the relay lens, whereupon the relay lens forms another intermediate image upon the spatial light modulator. The spatial light modulator modulates the light in the see-through path to remove the light to be occluded. The spatial light modulator reflects the modulated light into the second beam splitter, whereupon the light from the microdisplay enters the second beam splitter. The second beamsplitter merges the modulated light in the see-through path with the light in the virtual view path and folds toward the eyepiece for viewing. The light from the beam splitter enters the eyepiece through the refractive surface S3, then is consecutively reflected by the reflective surfaces S1’ and S2 and exits the eyepiece through the refractive surface S1 and reaches the exit pupil, where the viewer’s eye is aligned to see a combined view of a virtual view and a modulated see-through view. This aspect addresses a problem associated with cumbersome helmet-like form factor of the prior art which prevents the acceptance of such technology. Advantageously, inside the objective optics an intermediate image 460 is formed to erect the see-through view which eliminates the necessity of using an erection roof reflective surface which can lead to a more compact design by folding the optical path inside the objective prism multiple times.

43. 发明专利

AU2017206021A1 Virtual and augmented reality systems and methods having unequal numbers of component color images distributed across depth planes 未知
公开(公告)号：AU2017206021A1
公开(公告)日：2018-07-19
申请号：AU2017206021
申请日：2017-01-05
申请人： MAGIC LEAP INC
发明人： SCHOWENGERDT BRIAN T , HUA HONG , CHENG HUI-CHUAN , PEROZ CHRISTOPHE
IPC分类号： G02B27/42 , G02B6/10 , G02B6/24 , G02B27/01 , G02B27/02 , G02B27/44
摘要： Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across the depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The stack of waveguides may include by multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides is less than the total number of waveguides in the first plurality of waveguides, and may be more than the total number of waveguides in a third plurality of waveguides, in embodiments where three component colors are utilized.

44. 发明专利

AU2015242991B2 An ergonomic head mounted display device and optical system 未知
公开(公告)号：AU2015242991B2
公开(公告)日：2017-06-15
申请号：AU2015242991
申请日：2015-10-14
申请人： MAGIC LEAP INC
发明人： GAO CHUNYU , HUA HONG , LIN YUXIANG
IPC分类号： G02B27/01
摘要： This invention concerns an ergonomic optical see-through head mounted display device with an eyeglass appearance. The see-through head-mounted display device consists of a transparent, freeform waveguide prism for viewing a displayed virtual image, a see-through compensation lens for enabling proper viewing of a real-world scene when combined together with the prism, and a miniature image display unit for supplying display content. The freeform waveguide prism, containing multiple freeform refractive and reflective surfaces, guides light originated from the miniature display unit toward a user's pupil and enables a user to view a magnified image of the displayed content. A see-through compensation lens, containing multiple freeform refractive surfaces, enables proper viewing of the surrounding environment, through the combined waveguide and lens. The waveguide prism and the see-through compensation lens are properly designed to ergonomically fit human heads enabling a wraparound design of a lightweight, compact, and see-through display system.

45. 发明专利

AU2017203227A1 Wide-field of view (FOV) imaging devices with active foveation capability 未知
公开(公告)号：AU2017203227A1
公开(公告)日：2017-06-08
申请号：AU2017203227
申请日：2017-05-15
申请人： MAGIC LEAP INC
发明人： GAO CHUNYU , HUA HONG
IPC分类号： G03B19/18
摘要： Disclosed is a clustered foveated imaging system configured to capture a plurality of wide field of view images. The clustered foveated imaging system comprises at least two foveated imaging systems, each configured to capture a wide field of view image resulting in an extended wide field of view from each wide field of view. Each wide field of view has and at least one intersection at a field of view boundary between the at least two wide fields of view between the at least two foveated imaging systems. At least one multi-faceted mirror is configured to create a single common viewpoint within the extended wide field of view.

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