公开(公告)号：US20190179409A1

公开(公告)日：2019-06-13

申请号：US16207660

申请日：2018-12-03

Applicant: FRANK JONES ,  JAMES BENSON BACQUE ,  MARK HARRIS ,  ROBERT HILKES

Inventor： FRANK JONES ,  JAMES BENSON BACQUE ,  MARK HARRIS ,  ROBERT HILKES

IPC: G06F3/01 ,  G02B27/01 ,  G02B5/04

Abstract: The majority of applications for head mounted display (HMD) users, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc. yield a conflicting set of tradeoffs between user comfort and minimal fatigue and strain during use, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Further, individual users' needs vary as do their needs with the general task at-hand, visual focus, and various regions-of-interest within their field of view. To address these issues, it is necessary to provide a high performance optical system, eyepiece design, and system features which overcome these limitations.

公开(公告)号：US20070133139A1

公开(公告)日：2007-06-14

申请号：US11296458

申请日：2005-12-08

Applicant: Raymond Orr ,  Robert Hilkes

Inventor： Raymond Orr ,  Robert Hilkes

IPC: H02H3/00

CPC classification number: H02M1/36 ,  H02M2001/008

Abstract: A plurality of DC power supply modules have track pins interconnected for tracking of output voltages of the modules during power-up and normal power-down. Each module pulls down its track pin voltage in response to any fault, and detects a track pin voltage below a threshold to detect a fault communicated from any other module, to facilitate fault power-down. The track pin voltage is initially raised above the threshold for power-up. One module can be designated a master for monitoring an input voltage to the modules and for determining the track pin voltage for normal power-up and power-down.

Abstract translation: 多个DC电源模块具有互连的跟踪引脚，用于在上电和正常断电期间跟踪模块的输出电压。 每个模块响应于任何故障拉低其引脚电压，并且检测到引脚电压低于阈值以检测从任何其他模块通信的故障，以便于故障断电。 跟踪引脚电压最初升高到高于阈值以上的上电。 一个模块可以被指定为用于监视模块的输入电压的主站，以及用于确定正常上电和断电的跟踪引脚电压。