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公开(公告)号：US20240393597A1
公开(公告)日：2024-11-28
申请号：US18690051
申请日：2022-09-07
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci , Timothy Paul Bodiya
Abstract: The disclosure herein presents an eyebox expander for a wearable head mounted display. The eyebox expander includes a first liquid crystal layer: an electrode arrangement to apply a voltage to the first liquid crystal layer to modify an orientation associated with the first liquid crystal layer; and a compensation layer to redirect light passing through the eyebox expander based on the modification of the orientation associated with the first liquid crystal layer.
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公开(公告)号：US20240295737A1
公开(公告)日：2024-09-05
申请号：US18574503
申请日：2022-08-26
Applicant: GOOGLE LLC
Inventor： Timothy Paul Bodiya , Ozan Cakmakci
CPC classification number: G02B27/0172 , G02B3/14 , G02B2027/0118 , G02B2027/0178 , G02B2027/0194
Abstract: Systems, devices, and methods are described in which one or more tunable lens elements are incorporated within a lens structure communicatively coupled to a wearable display device operable to present augmented reality (AR) content to a user. The lens structure includes a display optics lens layer having a provided AR display, one or more eye-side lens layers disposed adjacent to the display optics lens layer and facing an eye of the user, and one or more world-side lens layers disposed adjacent to the display optics lens layer and facing away from the eye of the user. The world-side lens layers includes a tunable lens component to selectively adjust a focal modulation of at least a portion of a real-world view of the user via the lens structure.
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公开(公告)号：US20240004199A1
公开(公告)日：2024-01-04
申请号：US18209723
申请日：2023-06-14
Applicant: GOOGLE LLC
Inventor： Eliezer Glik , Oscar Alberto Martinez , Ozan Cakmakci
IPC: G02B27/01
CPC classification number: G02B27/0172
Abstract: Techniques for implementing a partially curved lightguide with pupil replicators are disclosed. A partially curved lightguide includes an embedded collimator with surfaces that act to collimate light for display prior to the light encountering a surface in a pupil expansion region of an exit pupil expander. By collimating the light within the lightguide rather than collimating the light prior to entering the lightguide, the requisite volume of a form factor of an AR display is minimized by eliminating select collimating optics and thus enabling a less bulky volume of the AR display in the region of the light source. Using techniques disclosed herein, a partially curved lightguide with pupil replicators is achievable in an eyewear display system having a form factor similar to traditional eyeglasses and curved, thin lenses.
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24.发明授权公开(公告)号：US11662583B2
公开(公告)日：2023-05-30
申请号：US17071646
申请日：2020-10-15
Applicant: GOOGLE LLC
Inventor： Yi Qin , Ozan Cakmakci
CPC classification number: G02B27/0172 , G02C7/027 , G02B2027/013 , G02B2027/0178
Abstract: A head mounted display includes a combiner configured to receive display light from a micro-display. The world-facing surface of the combiner has a curvature that corresponds to a user's vision correction prescription. The head mounted display also includes a corrective layer having a second curvature that corresponds to the user's vision correction prescription. The corrective layer is disposed on the eye-facing surface of the combiner such that the focal point of the display light is adjusted for the specific user as the display light exits the combiner towards the user's eye.
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25.发明申请公开(公告)号：US20210341739A1
公开(公告)日：2021-11-04
申请号：US16864813
申请日：2020-05-01
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci , Daniel Corbalan , Benjamin McLaughlin Gallant , Carlin Vieri , Juseok Lee
Abstract: An optical device includes a display that emits light toward a lightguide. Display light reflects from lightguide surfaces by total internal reflection (TIR). The display is mounted proximate to the lightguide. The optical device includes a first surface at an eye-side of the optical device and a second surface at a world-side. The optical device includes a first material having a first Abbe number and a second material having a second Abbe number different from the first Abbe number. The first material and the second material cause a color correction to light from the display or alters a chromatic aberration of the light from the display. A head mountable frame supports the display and the lightguide including the first and second materials.
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Patent Agency Ranking
公开(公告)号：US10545342B2
公开(公告)日：2020-01-28
申请号：US15437694
申请日：2017-02-21
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci
Abstract: An optical apparatus for a near-eye display includes a microdisplay to emit image light and one or more field lenses positioned to receive the image light from the microdisplay. The one or more field lenses have a combined optical power to form a curved intermediate image. A freeform combiner, having an eyeward side and an external side, is positioned to receive the image light from the one or more field lenses and reflect the image light. A curved intermediate image is formed between the freeform combiner and the one or more field lenses.
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公开(公告)号：US20190101764A1
公开(公告)日：2019-04-04
申请号：US16148670
申请日：2018-10-01
Applicant: GOOGLE LLC
Inventor： Ozan Cakmakci
Abstract: Systems, devices, and apparatuses for a head-worn augmented reality display are provided. An example head-mounted display device includes a frame, a combiner, and a microdisplay device. The frame may have a structure that is configured to be worn by a user. The combiner may be attached to the frame and may include a curved transparent structure having a reflective surface. The microdisplay device may be attached to the frame and configured to, when the frame is worn by the user, emit image content that crosses in front of the user's face and intersects with the reflective surface of the combiner. Example combiners may have a positive wrap angle.
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公开(公告)号：US12174395B2
公开(公告)日：2024-12-24
申请号：US17431986
申请日：2019-12-04
Applicant: GOOGLE LLC
Inventor： Yi Qin , Ozan Cakmakci
Abstract: A head mounted display (HMD) provides multiple fields of view of a single micro-display by time-multiplexing the provision of light of different polarizations. The HMD includes a micro-display, a lightguide, and a plurality of combiners coupled to the lightguide, wherein each combiner is configured to combine light of a different polarization. For example, the HMD can include two combiners, with one combiner configured to combine P-polarized light and the other combiner configured to combine S-polarized light. A polarizer switch is included in a filter stack for the lightguide, and a control module controls the switch to alternate the provision of light having P-polarization and S-polarization, respectively. The light of each polarization provides a different field of view of the micro-display.
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公开(公告)号：US20240418994A1
公开(公告)日：2024-12-19
申请号：US18700850
申请日：2022-10-11
Applicant: GOOGLE LLC
Inventor： Eliezer Glik , Ozan Cakmakci
Abstract: A head-mounted display includes a microdisplay configured to emit light representative of an image and provide the emitted light to an optics relay included in the head-mounted display. The optics relay is configured to magnify the image emitted by the microdisplay by a predetermined power such that an intermediate image based on the magnified image is formed in a curved lightguide of the head-mounted display. The intermediate image is then provided by the curved lightguide to an optical output system included in or otherwise coupled to the curved lightguide. The optical output system then provides at least a portion of the intermediate image to the eye of a user.
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公开(公告)号：US12169278B2
公开(公告)日：2024-12-17
申请号：US17437174
申请日：2019-12-04
Applicant: GOOGLE LLC
Inventor： Yi Qin , Ozan Cakmakci
IPC: G02B27/01
Abstract: An HMD employs a multifocal module having one or more voltage controlled optical elements. By changing the voltage applied to the one or more optical elements, the HMD can change the focal length of an image generated by the micro-display. The multifocal module can include a cholesteric liquid crystal (CLC) element and a polarizer switch. By controlling the voltage applied to each of the CLC element and the polarizer switch, the HMD can change the focal length of the image passed through the multifocal module. The HMD can thereby change the focal length of any image generated by the micro-display.
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