公开(公告)号：US5953156A

公开(公告)日：1999-09-14

申请号：US107580

申请日：1998-05-13

Applicant: Paul L. Muench

Inventor： Paul L. Muench

IPC: G02B27/22 ,  G03B21/00

CPC classification number: G02B27/2235 ,  G02B27/225

Abstract: A method to create a holographic projection adjusts both for relatively sl and relatively large head movements of the human viewer. Basically, the method includes sending sequences of images on an optical path from a projector to an eyebox array, the images in the sequences being views of the object from different angles. In the method's first step, the sequences of images are sent to a quasi-cylindrical mirror having two or more arcuate zones. Each zone corresponds to a particular range of viewer head positions and to a particular sequence of images, and each image reflects from a different, characteristic location in its associated zone. Once the images reflect from the quasi-cylindrical mirror, they pass through an HOE in the optical path to the eyebox array. Any given sequence of images is sufficient for an eyebox array whose width accommodates relatively small head, motions of the viewer. Accommodating larger movements of the viewer's head is done by tracking the viewer's head and directing light rays from the projector in response to these movements.

Abstract translation: 创建全息投影的方法既适用于人类观看者的较小且相对较大的头部运动。 基本上，该方法包括在从投影仪到眼框阵列的光路上发送图像序列，序列中的图像是来自不同角度的对象的视图。 在方法的第一步中，图像序列被发送到具有两个或更多个弧形区域的准圆柱形反射镜。 每个区域对应于观看者头部位置和特定图像序列的特定范围，并且每个图像从其相关区域中的不同的特征位置反射。 一旦图像从准圆柱形反射镜反射，它们就通过光路中的HOE到眼镜阵列。 任何给定的图像序列对于其宽度适应观察者的较小头部，运动的眼框阵列是足够的。 通过跟踪观看者的头部并且响应于这些移动来引导来自投影仪的光线来实现观看者头部的更大的移动。