Planar waveguide apparatus with diffraction element(s) and system employing same

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	Planar waveguide apparatus with diffraction element(s) and system employing same
其他题名	Planar waveguide apparatus with diffraction element(s) and system employing same
	ABOVITZ, RONY; SCHOWENGERDT, BRIAN T.; WATSON, MATTHEW D.
	2015-10-29
专利权人	MAGIC LEAP, INC.
公开日期	2015-10-29
授权国家	美国
专利类型	发明申请
摘要	A waveguide apparatus includes a planar waveguide and at least one optical diffraction element (DOE) that provides a plurality of optical paths between an exterior and interior of the planar waveguide. A phase profile of the DOE may combine a linear diffraction grating with a circular lens, to shape a wave front and produce beams with desired focus. Waveguide apparati may be assembled to create multiple focal planes. The DOE may have a low diffraction efficiency, and planar waveguides may be transparent when viewed normally, allowing passage of light from an ambient environment (e.g., real world) useful in AR systems. Light may be returned for temporally sequentially passes through the planar waveguide. The DOE(s) may be fixed or may have dynamically adjustable characteristics. An optical coupler system may couple images to the waveguide apparatus from a projector, for instance a biaxially scanning cantilevered optical fiber tip.
其他摘要	波导装置包括平面波导和至少一个光学衍射元件（DOE），其在平面波导的外部和内部之间提供多个光学路径。 DOE的相位轮廓可以将线性衍射光栅与圆形透镜组合，以形成波前并产生具有期望焦点的光束。可以组装波导装置以产生多个焦平面。 DOE可以具有低衍射效率，并且当正常观察时平面波导可以是透明的，允许来自在AR系统中有用的周围环境（例如，现实世界）的光通过。可以返回光以暂时顺序地通过平面波导。 DOE可以是固定的或可以具有动态可调节的特性。光学耦合器系统可以从投影仪将图像耦合到波导设备，例如双轴扫描悬臂光纤尖端。
主权项	A waveguide apparatus, comprising: a planar waveguide having at least a first end, a second end, a first face, and a second face, the second end opposed to the first end along a length of the waveguide, at least the first and the second faces forming an at least partially internally reflective optical path along at least a portion of the length of the planar waveguide, and at least one optically diffractive element that interprets the internally reflective optical path to provide a plurality of optical paths between an exterior and an interior of the planar waveguide via the first face thereof at respective positions along at least a portion of the length of the planar waveguide.
申请日期	2014-07-14
专利号	US20150309263A2
专利状态	授权
申请号	US14/331218
公开（公告）号	US20150309263A2
IPC 分类号	G02B6/34
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/54522
专题	半导体激光器专利数据库
作者单位	MAGIC LEAP, INC.
推荐引用方式 GB/T 7714	ABOVITZ, RONY,SCHOWENGERDT, BRIAN T.,WATSON, MATTHEW D.. Planar waveguide apparatus with diffraction element(s) and system employing same. US20150309263A2[P]. 2015-10-29.

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