公开(公告)号：US20210278674A1

公开(公告)日：2021-09-09

申请号：US17303348

申请日：2021-05-27

Applicant: Google LLC

Inventor： Jerome Carollo ,  Xinda Hu ,  Serge Bierhuizen ,  Yi Qin

IPC: G02B27/01 ,  G02B27/09 ,  G02B27/28

Abstract: Systems and apparatus are described for a head-mounted display apparatus comprising at least one optical assembly. Each optical assembly may include a first curved lens including a first surface and a second surface, a second curved lens including a third surface and a fourth surface, the third surface being concave and including a beam splitter layer, the second curved lens being disposed between the first curved lens and an input filter assembly, and a display panel adapted to receive image content from an image projecting device and transmit the image content through the at least one optical assembly. The third surface of the second curved lens may have a radius of curvature that is larger than a radius of curvature of the second surface of the first curved lens.

公开(公告)号：US20210141226A1

公开(公告)日：2021-05-13

申请号：US16682446

申请日：2019-11-13

Applicant: GOOGLE LLC

Inventor： Ozan Cakmakci ,  Yi Qin

IPC: G02B27/01 ,  G02B5/30

Abstract: A head mounted display (HMD) system employs a holographic element in the optical path of the HMD to direct light to a user's eye. The HMD includes a micro-display, a lightguide, and a holographic element coupled to the lightguide. The holographic element is coupled to a polarization film, and together the element and film reflect and transmit light of different polarities in a specified pattern to assist the lightguide in directing light to the user's eye. For example, the hologram and polarization film can be configured to pass R-polarized light and reflect L-polarized light, thereby directing light from the waveguide along a specified path.

公开(公告)号：US20200249480A1

公开(公告)日：2020-08-06

申请号：US16437461

申请日：2019-06-11

Applicant: GOOGLE LLC

Inventor： Oscar Martinez ,  Yi Qin ,  Serge Bierhuizen

IPC: G02B27/01 ,  G02F1/1335 ,  G02B27/28 ,  G02B5/08

Abstract: A system includes an electronic display for emitting light toward an eye-ward side of the system. A beam splitter receives emitted light from the display. The beam splitter includes a polarization beam splitting (PBS) film and a mirror coating to generate two orthogonal polarization states with different optical paths thereby creating a first focal plane and a second focal plane at the eye-ward side of the system. At least one liquid crystal switch is positioned to receive light from the display in a light path between the display and the eye-ward side of the system.

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

IPC: G02B27/01 ,  G02C7/02

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.

公开(公告)号：US10816804B2

公开(公告)日：2020-10-27

申请号：US16119026

申请日：2018-08-31

Applicant: Google LLC

Inventor： Oscar Martinez ,  Yi Qin ,  Jerome Carollo ,  Xinda Hu ,  Serge Bierhuizen

IPC: G02B27/01 ,  G02B7/04 ,  G02B27/28

Abstract: A near-eye display system includes an optical system facing a display panel. The optical system includes an input filter, and output filter, and a variable-power catadioptric lens assembly disposed between the input and output filters. The input and output filters are configured, along with the catadioptric lens assembly to fold a path of display light from the display panel to a user's eye. The catadioptric lens assembly includes two or more lens elements disposed along an optical axis, each lens element having at least one surface with a freeform curvature. One of the lens elements is configured to be laterally translated relative to the other lens elements so as to change an optical power of the catadioptric lens assembly.

公开(公告)号：US10545347B2

公开(公告)日：2020-01-28

申请号：US15902811

申请日：2018-02-22

Applicant: GOOGLE LLC

Inventor： Serge Bierhuizen ,  Hayes S. Raffle ,  Xinda Hu ,  Jerome Carollo ,  Yi Qin ,  Oscar Martinez

IPC: G02B27/01 ,  G02B27/09 ,  G02B5/20 ,  G02B5/30 ,  G06F3/01 ,  G02B27/00

Abstract: Optical assemblies for use in virtual and augmented reality environments are described. The optical assemblies may include lenses, filter stacks, cameras, and image projecting devices. For example, the optical assemblies may include at least one lens, a first filter stack between the at least one lens and an image projecting device, a second filter stack between the first filter stack and the image projecting device, and a camera configured to capture images of an infrared reflection of light through the at least one lens.