# US 11,029,520 B2 · Head mounted display with lens > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,520 B2 - Document ID: US11029520B2 - Status: Granted - Kind: B2 - Application number: 16/150,238 - Filed: 2018-10-02 - Published: 2020-04-02 - Granted: 2021-06-08 - Earliest claimed: 2018-10-02 - Assignees: Seebright Inc. - Applicants: Seebright Inc. - Inventors: John T. Murray; Katherine Compton - Web page: https://patentgrep.com/patent/US11029520B2 ## CPC - G02B 27/0172: {characterised by optical features} - G02B 3/08: with discontinuous faces, e.g. Fresnel lens {(diffractive Fresnel lenses G02B5/1876)} - G02B 27/0176: {characterised by mechanical features} - G02B 30/00: Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images (in microscopes G02B21/22) - G02B 2027/0136: {with a single image source for both eyes} - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A head mounted display device that displays three dimensional images from a mobile device, which includes a viewing assembly, a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing that reflects images displayed by the mobile device, a lens, and an eyepiece onto which the reflecting surface reflects the images through the lens. ## Claims ### Claim 1 A head mounted display device for displaying images from a mobile device, comprising: a housing that secures an inserted mobile device, which when fit on the head of a human viewer, secures the mobile device above the eyebrow of the viewer, the mobile device comprising a forward-facing side with a display; a reflecting surface, connected to the housing, that reflects images displayed by the mobile device display; one or more lenses, connected to the housing, that focuses the images reflected by the reflecting surface, and an eyepiece, connected to the housing, that reflects the images from the one or more lenses into both eyes of the viewer, wherein when the device is fit against the head of the viewer the mobile device is secured in a substantially vertical position by the housing, the lens is secured in a substantially horizontal position, wherein the mobile device is in a vertical position when the display faces at 90 degrees forward from a vertical axis formed by the ground and the head of the viewer, and the reflecting surface forms the hypotenuse of a triangle formed by the plane of the mobile device and the plane of the lens. ### Claim 2 (depends on 1) The device of claim 1 wherein the one or more lenses consist of two lenses, a right lens and a left lens. ### Claim 3 (depends on 2) The device of claim 2, wherein each of the two lenses is a Fresnel lens. ### Claim 4 (depends on 1) The device of claim 1, wherein the housing fits a mobile device with a display of at least four diagonal inches. ### Claim 5 (depends on 1) The device of claim 1, wherein the reflecting surface is sufficiently large to reflect substantially all of the light emanating from the mobile device display. ### Claim 6 (depends on 1) The device of claim 1, wherein said mobile device displays a first image on its right side and a second image on its left side and wherein said reflecting surface comprises a right mirror that reflects the first and a left mirror that reflects the second image. ### Claim 7 (depends on 6) The device of claim 6, wherein said housing further comprises an opaque optical block that prevents the first image from crossing over to the left mirror and prevents the second image from crossing over to the right mirror. ### Claim 8 (depends on 1) The device of claim 1, wherein the eyepiece comprises two separate elements. ### Claim 9 (depends on 1) The device of claim 1, wherein the eyepiece comprises a single element. ### Claim 10 (depends on 1) The device of claim 1, wherein the eyepiece is half-silvered. ### Claim 11 (depends on 1) The device of claim 1, wherein the focal length from the lens to the eyepiece is between 75 and 150 millimeters. ### Claim 12 (depends on 1) The device of claim 1, wherein the lower extent of the housing rests at least 10 millimeters above the eyebrow of the viewer when the housing is fitted to the head of the viewer. ### Claim 13 (depends on 1) The device of claim 1, wherein when fit against the head of the viewer the mobile device, lens, and reflecting surface are positioned by the housing above the eyebrow of the viewer. ### Claim 14 (depends on 1) The device of claim 1, wherein the optical distance from the display to the lens is approximately equal to the optical distance from the lens to the eye. ### Claim 15 A head mounted display device for displaying images from a mobile device, comprising: a housing that secures an inserted mobile device, which when fit on the head of a human viewer, secures the mobile device above the eyebrow of the viewer, the mobile device comprising a forward-facing side with a display; a reflecting surface, connected to the housing, that reflects images displayed by the mobile device display; one or more lenses, connected to the housing, that focuses the images reflected by the reflecting surface, and an eyepiece, connected to the housing, that reflects the images from the one or more lenses into both eyes of the viewer, wherein when the device is fit against the head of the viewer the mobile device is secured in a substantially horizontal position by the housing, wherein the mobile device is in a horizontal position when the display faces 180 degrees downward from a vertical axis formed by the ground and the head of the viewer.