# US 11,307,421 B2 · Dual mode headset > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,421 B2 - Document ID: US11307421B2 - Status: Granted - Kind: B2 - Application number: 16/628,150 - Filed: 2017-07-13 - Published: 2020-04-30 - Granted: 2022-04-19 - Earliest claimed: 2017-07-13 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Marko Eromaki - Web page: https://patentgrep.com/patent/US11307421B2 ## CPC - G02B 27/0176: {characterised by mechanical features} - G02B 27/0101: {characterised by optical features (G02B27/0172 takes precedence)} - G02B 2027/011: {comprising device for correcting geometrical aberrations, distortion} - G02B 2027/0154: {with movable elements} - G02B 2027/0156: {with optionally usable elements} - G06F 1/163: {Wearable computers, e.g. on a belt} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A dual mode virtual reality (VR) and augmented reality (AR) headset includes a head-attachment, a main frame coupled to the head-attachment, and a pivot frame. The pivot frame includes a holder configured to accommodate an electronic device having a display screen, and a reflective screen configured to reflect content shown on the display screen. The pivot frame pivotally coupled to the main frame. In the first pivot frame position, the reflective screen at least partially intersects a field of view (α) of a user wearing the headset, and in the second pivot frame position the display screen at least partially intersects the α when the electronic device is accommodated in the holder. ## Claims ### Claim 1 A dual mode virtual reality (VR) and augmented reality (AR) headset, comprising: a head-attachment; a main frame coupled to the head-attachment; a pivot frame, comprising: a holder configured to accommodate an electronic device having a display screen; a reflective screen configured to reflect content shown on the display screen; a reflective element, wherein the reflective element is configured to reflect light along an optical axis of a camera of the electronic device when the electronic device is accommodated in the holder, and wherein the reflective element comprises at least one surface extending at a first acute angle relative to the holder; a first link, wherein a first end of the first link is fixedly coupled to the holder, and wherein a second end of the first link is pivotally coupled to the main frame; a second link; and a connecting rod, wherein a first end of the second link is fixedly coupled to the first link to form a V-shape, wherein the V-shape is open in a direction towards the holder, wherein a second end of the second link is pivotally coupled to a first end of the connecting rod, wherein the pivot frame is pivotally coupled to the main frame to allow the pivot frame to be moved between a first pivot frame position and a second pivot frame position relative to the main frame, wherein in the first pivot frame position, the reflective screen is configured to at least partially intersect a field of view of a user wearing the dual mode VR and the AR headset, and wherein in the second pivot frame position, the display screen is further configured to at least partially intersect the field of view when the electronic device is accommodated in the holder; and corrective optics pivotally coupled to the pivot frame, wherein the corrective optics are configured to move to a first position relative to the main frame when the pivot frame moves to the first pivot frame position, and wherein a second end of the connecting rod is pivotally coupled to the corrective optics. ### Claim 2 (depends on 1) The dual mode VR and AR headset of claim 1, wherein in the first pivot frame position the display screen is further configured to not intersect the field of view when the electronic device is accommodated in the holder. ### Claim 3 (depends on 1) The dual mode VR and AR headset of claim 1, wherein the corrective optics are further configured to at least partially intersect the field of view when the pivot frame is in the second pivot frame position. ### Claim 4 (depends on 1) The dual mode VR and AR headset of claim 1, wherein the first link extends from the holder at an acute angle. ### Claim 5 (depends on 1) The dual mode VR and AR headset of claim 1, wherein the reflective screen is partially curved. ### Claim 6 (depends on 1) The dual mode VR and AR headset of claim 1, wherein the corrective optics are fixedly coupled to the reflective screen. ### Claim 7 (depends on 6) The dual mode VR and AR headset of claim 6, wherein the corrective optics are configured to extend from the reflective screen at an obtuse angle. ### Claim 8 (depends on 1) The dual mode VR and AR headset of claim 1, wherein the main frame comprises: a first main frame part configured to extend perpendicular to a face of the user; and a second main frame part configured to extend in parallel with the face of the user, wherein the first link is pivotally coupled to the second main frame part. ### Claim 9 (depends on 8) The dual mode VR and AR headset of claim 8, wherein when the electronic device is accommodated in the holder in the first pivot frame position, the display screen is configured to extend in parallel with the first main frame. ### Claim 10 (depends on 8) The dual mode VR and AR headset of claim 8, wherein the first link is pivotally coupled to the second main frame part at a location below the first main frame part when the user wears the headset. ### Claim 11 (depends on 10) The dual mode VR and AR headset of claim 10, wherein the corrective optics are pivotally coupled to the first main frame part at a distance from the second main frame part. ### Claim 12 (depends on 11) The dual mode VR and AR headset of claim 11, wherein the reflective screen is configured to extend from the holder at a second acute angle. ### Claim 13 (depends on 8) The dual mode VR and AR headset of claim 8, wherein when the electronic device is accommodated in the holder in the second pivot frame position, the display screen is configured to extend in parallel with the second main frame part. ### Claim 14 (depends on 1) The dual mode VR and AR headset of claim 1, wherein the corrective optics are further configured to move to a second position relative to the main frame when the pivot frame moves to the second pivot frame position. ### Claim 15 A dual mode virtual reality (VR) and augmented reality (AR) headset, comprising: a head-attachment; a main frame coupled to the head-attachment; and a pivot frame pivotally coupled to the main frame to allow the pivot frame to be moved between a first pivot frame position corresponding to an AR mode and a second pivot frame position corresponding to a VR mode, the pivot frame comprising: a holder configured to detachably accommodate an electronic device having a display screen; and a reflective screen configured to reflect content shown on the display screen and fixedly coupled to the holder such that an angle between the reflective screen and the holder is the same when the pivot frame is in the first pivot frame position as when the pivot frame is in the second frame position, wherein in the first pivot frame position, the reflective screen is configured to at least partially intersect a field of view of a user wearing the dual mode VR and the AR headset, and wherein in the second pivot frame position, the display screen is further configured to at least partially intersect the field of view when the electronic device is accommodated in the holder. ### Claim 16 (depends on 15) The dual mode VR and AR headset of claim 15, wherein in the first pivot frame position the display screen is further configured to not intersect the field of view when the electronic device is accommodated in the holder. ### Claim 17 A dual mode virtual reality (VR) and augmented reality (AR) headset, comprising: a head-attachment; a main frame coupled to the head-attachment; a pivot frame pivotally coupled to the main frame to allow the pivot frame to be moved between a first pivot frame position corresponding to an AR mode and a second pivot frame position corresponding to a VR mode, the pivot frame comprising: a holder configured to detachably accommodate an electronic device having a display screen; and a reflective screen coupled to the holder at a first end of the reflective screen and configured to reflect content shown on the display screen, wherein in the first pivot frame position, the reflective screen is configured to at least partially intersect a field of view of a user wearing the dual mode VR and the AR headset, and wherein in the second pivot frame position, the display screen is further configured to at least partially intersect the field of view when the electronic device is accommodated in the holder; and corrective optics coupled to the reflective screen at a second end of the reflective screen, wherein the second end is opposite the first end. ### Claim 18 (depends on 17) The dual mode VR and AR headset of claim 17, wherein in the first pivot frame position the display screen is further configured to not intersect the field of view when the electronic device is accommodated in the holder. ### Claim 19 (depends on 17) The dual mode VR and AR headset of claim 17, wherein the corrective optics are further configured to at least partially intersect the field of view when the pivot frame is in the second pivot frame position.