Tencent America LLC

Hao Zheng

Yi Zhang

Kun Gao

Jianru Shi

Hongdong Li

Youngshik Yoon

John D Le

Aspects of the disclosure provide an optical system. The optical system includes a polarization controller that controls polarization states of light beams such that a polarization state of each light beam passing through the polarization controller has one of a first polarization state and a second polarization state. The optical system includes a beam splitter, a reflective polarizer, and one or more lenses between the beam splitter and the reflective polarizer. If a polarization state of a first light beam of the light beams that passes through the polarization controller has the first polarization state, the first light beam passes the one or more lenses only one time. If a polarization state of a second light beam of the light beams that passes through the polarization controller has the second polarization state, the second light beam passes the one or more lenses more than one time.

Polarization based dual imaging optical system

An optical lens assembly for a near-eye display device includes a light box and a diffractive optical element (DOE). The light box has a first layer facing a display screen of the near-eye display device and a second layer facing the DOE. The light box is configured to receive a first light from a display screen of the near-eye display device and transmit at least a portion of the first light to the DOE through a folded optical path, where the first layer and the second layer are flat. The DOE aligned with an optical axis of an eye and is configured to receive a second light from the light box and converge the second light to the eye.

Optical lens assembly for near-eye display and near-eye display device

A method for controlling a near eye display system, includes determining a target area of a display of the near eye display system, the target area of the display being an area that a user wearing the near eye display system is looking at, and controlling a brightness of the target area of the display of the near eye display system to be different from a brightness of a non-target area of the display of the near eye display system, to cause a diameter of a pupil of the user to be less than or equal to a diameter threshold.

Control method and device for near eye display system

A method for controlling a near eye display system, includes obtaining an eye movement of a user wearing the near eye display system using an eye tracking sensor of the near eye display system, determining a target area of a display of the near eye display system based on the eye movement of the user, the target area of the display being an area that the user is looking at, and controlling a brightness of the target area of the display of the near eye display system to cause a size of a pupil of the user to be in a predetermined range.

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Palo Alto, CA, United States of America

Hao Zheng