公开(公告)号：US20160131761A1

公开(公告)日：2016-05-12

申请号：US14937844

申请日：2015-11-10

Applicant: VALVE CORPORATION

Inventor： ALAN YATES ,  Jeremy Selan

IPC: G01S17/58 ,  G01S17/42

CPC classification number: G01S1/70 ,  G01S7/481 ,  G01S7/4917

Abstract: Optical positional tracking systems that may be used in virtual reality (VR)/augmented reality (AR) applications are described. Exemplary implementations comprise one or more receivers and one or more transmitters. Exemplary transmitters contains two orthogonal rotors that each emit a fan-shaped laser beam. Each beam is swept as the rotors are spun at constant speed. Exemplary optical receivers can be relatively small, and mounted at convenient locations on the VR display. These receivers consist of small optical detectors that may be mounted on head-mounted VR displays. Exemplary systems determine position by measuring the time at which each swept beam crosses each receiver/detector.

Abstract translation: 描述了可用于虚拟现实（VR）/增强现实（AR）应用中的光学位置跟踪系统。 示例性实现包括一个或多个接收器和一个或多个发射器。 示例性发射器包含两个正交的转子，每个发射扇形激光束。 当转子以恒定速度旋转时，每个梁都被扫掠。 示例性光接收器可以相对较小，并且安装在VR显示器上的方便位置。 这些接收器由可安装在头戴式VR显示器上的小型光学检测器组成。 示例性系统通过测量每个扫描光束穿过每个接收器/检测器的时间来确定位置。