Google Inc.

Brian Watson Cranton

Lloyd Frederick Holland

Ian Andrews

Darren Ihmels

Cecilia Abadie

Jennifer Sy-En Han

An illustrative display device preserves scotopic vision for a user. The display device includes a display configured to present image content, a memory storing instructions and operating parameters, and a processor coupled to the memory and configured to execute the instructions. The operating parameters may include a color parameter and an additional parameter, such that the execution of the instructions allows the processor to switch the display device between: 1) a normal operating mode in which the color parameter is set to cause the display to present the image content in full color and the additional parameter is set to a first setting, and 2) a scotopic preservation mode in which the color parameter is set to cause the display to present the image content in red color and the additional parameter is set to a second setting different from the first setting. Corresponding methods and devices are also disclosed.

Devices and methods for preserving scotopic vision for a display device user

Systems, devices, and assemblies for implementing multi-focal lens portions in wearable heads-up displays are described. Multi-focal lens portions may include at least two regions having different optical power, and at least one transition region between regions having different optical power. If display light is directed through a transition region, aberrations or distortion may be visible in the display presented to the user. The present systems, devices, and assemblies address this issue through shaping, positioning, and orienting of regions of a multi-focal lens portion, through positioning, orientation, and aiming of display optics, and/or through arrangements of lens assemblies which prevent display light from travelling through a multi-focal lens portion.

Multi-focal optics for wearable heads-up displays

A lens specification for multiple lens layers of a lens structure is generated by one or more processors. A multifocal correction (MFC) component is assigned to at least one lens layer of the multiple lens layers. Parameters are generated for a display optics (DO) lens layer comprising an augmented reality (AR) display, the DO lens layer having a first side for facing an eye of the user and a second side for facing away from the eye of the user. Parameters are generated for one or more eye side (ES) lens layers of the multiple lens layers to be disposed adjacent to the first side of the DO lens layer, and for one or more world side (WS) lens layers to be disposed adjacent to the second side of the DO lens layer. The generated lens specification is provided for use in production of the lens structure for the user.

Integrated vision correction with augmented reality display

A system includes a head-mounted display (HMD) device configured to project digital images to a user's eye and a viewing device. The viewing device includes an optical relay unit having a world-facing surface and an eye-facing surface and a holder coupled to the optical relay unit and configured to support the HMD device near the world-facing surface. The optical relay unit is configured to transmit light projected by the HMD device to an eye-facing aperture disposed at the eye-facing surface of the optical relay. The system shifts an eyebox of the HMD by receiving light projected from an optical combiner of the HMD, transmitting the light through the optical relay unit of the viewing device to the eye-facing aperture of the optical relay unit, and outputting the light from the eye-facing aperture such that the light is focused at an eyebox in which a user's eye is located.

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Kitchener, Canada

Brian Watson Cranton