公开(公告)号：US20150346490A1

公开(公告)日：2015-12-03

申请号：US14726424

申请日：2015-05-29

Applicant: MAGIC LEAP, INC.

Inventor： Robert D. TEKOLSTE ,  Michael KLUG

IPC: G02B27/01 ,  G02F1/1334 ,  G02B27/22 ,  G02B27/00 ,  G02B5/18

CPC classification number: G02B27/0101 ,  G02B5/1842 ,  G02B5/1871 ,  G02B27/0081 ,  G02B27/0172 ,  G02B27/225 ,  G02B27/2264 ,  G02B2005/1804 ,  G02B2027/0109 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B2027/0134 ,  G02F1/1334 ,  G03H1/0408

Abstract: Several unique configurations for interferometric recording of volumetric phase diffractive elements with relatively high angle diffraction for use in waveguides are disclosed. Separate layer EPE and OPE structures produced by various methods may be integrated in side-by-side or overlaid constructs, and multiple such EPE and OPE structures may be combined or multiplexed to exhibit EPE/OPE functionality in a single, spatially-coincident layer. Multiplexed structures reduce the total number of layers of materials within a stack of eyepiece optics, each of which may be responsible for displaying a given focal depth range of a volumetric image. Volumetric phase type diffractive elements are used to offer properties including spectral bandwidth selectivity that may enable registered multi-color diffracted fields, angular multiplexing capability to facilitate tiling and field-of-view expansion without crosstalk, and all-optical, relatively simple prototyping compared to other diffractive element forms, enabling rapid design iteration.

Abstract translation: 公开了用于在波导中使用相对高角度衍射的体相相位衍射元件的干涉记录的几种独特配置。 通过各种方法产生的分离层EPE和OPE结构可以整合在并排或重叠的结构中，并且可以将多个这样的EPE和OPE结构组合或复用以在单个空间重合层中展现EPE / OPE功能。 多路复用结构减少了目镜光学器件堆叠内的材料层总数，其中的每一个可能负责显示体积图像的给定焦点深度范围。 体积相位衍射元件用于提供包括光谱带宽选择性的性质，其可以实现注册的多色衍射场，有利于平铺的角度多路复用能力和无串扰的视场扩展以及全光学相对简单的原型相比 其他衍射元件形式，实现快速设计迭代。