公开(公告)号：US09519206B1

公开(公告)日：2016-12-13

申请号：US14750799

申请日：2015-06-25

Applicant: Google Inc.

Inventor： Adam E. Norton ,  Serge J. Bierhuizen ,  Andrei S. Kazmierski

IPC: G03B21/62 ,  G03B21/625 ,  G03B21/14 ,  G03B21/20 ,  G02B5/00 ,  G02B3/00 ,  G02B5/02 ,  G02B3/08 ,  G03B21/602

CPC classification number: G03B21/625 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/08 ,  G02B5/003 ,  G02B5/005 ,  G02B5/021 ,  G02B5/0278 ,  G02B5/0294 ,  G02B27/0018 ,  G02B27/30 ,  G03B21/006 ,  G03B21/147 ,  G03B21/208 ,  G03B21/602

Abstract: A multi-layer projection screen includes a transparent substrate having first and second sides, a stray light rejection layer, and a lens array. The stray light rejection layer is disposed across the first side of the transparent substrate. The stray light rejection layer includes an array of pillar structures, wherein each pillar structure of the array of pillar structures includes an entrance aperture, an exit aperture, a substantially transparent pathway extending from the entrance aperture to the exit aperture, and an opaque side wall surrounding the transparent pathway. The lens array is disposed across the second side of the transparent substrate and optically aligned to the array of pillar structures. The stray light rejection layer blocks display light received from the lens array having an oblique trajectory that is greater than a threshold angle from a normal of the second side of the transparent substrate.

Abstract translation: 多层投影屏幕包括具有第一和第二侧面的透明基板，杂散光阻挡层和透镜阵列。 杂散光阻挡层设置在透明基板的第一侧。 杂散光阻挡层包括柱状结构的阵列，其中柱状结构阵列的每个柱状结构包括入口孔，出口孔，从入口孔延伸到出口孔的基本上透明的路径，以及不透明侧壁 围绕透明路径。 透镜阵列跨越透明基板的第二侧并且与柱结构阵列光学对准。 杂散光阻挡层阻挡从透镜阵列接收的具有比透明基板的第二侧的法线大的阈值角的倾斜轨迹的光。

公开(公告)号：US09250508B1

公开(公告)日：2016-02-02

申请号：US14543616

申请日：2014-11-17

Applicant: Google Inc.

Inventor： Belle Fu ,  Serge J. Bierhuizen ,  Mary Lou Jepsen ,  Andrei S. Kazmierski ,  Adam E. Norton ,  Nicholas C. Loomis ,  Philip E. Watson

IPC: G03B21/62 ,  G03B21/625 ,  G02B5/30

CPC classification number: G03B21/62 ,  G02B5/3033 ,  G03B21/625

Abstract: A rear projection screen includes an array of pin-hole apertures to pass display light incident from a first side of the rear projection screen through to a viewing side of the rear projection screen opposite the first side. An array of concentrator structures surrounds the pin-hole apertures and defines concentrating optical pathways. The concentrating optical pathways each have an input aperture for collecting the display light and an output defined by a corresponding one of the pin-hole apertures to emit the display light. The input apertures are larger than the pin-hole apertures.

Abstract translation: 后投影屏幕包括一排针孔孔，以将从后投影屏幕的第一侧入射的显示光通过到与第一侧相对的后投影屏的观察侧。 集中器结构的阵列围绕针孔孔并且限定集中光学路径。 集中光路每个都具有用于收集显示光的输入孔和由对应的一个针孔孔限定的输出以发射显示光。 输入孔径大于针孔孔径。

公开(公告)号：US20160377970A1

公开(公告)日：2016-12-29

申请号：US14750799

申请日：2015-06-25

Applicant: Google Inc.

Inventor： Adam E. Norton ,  Serge J. Bierhuizen ,  Andrei S. Kazmierski

IPC: G03B21/625 ,  G03B21/20 ,  G02B3/08 ,  G02B3/00 ,  G02B5/02 ,  G03B21/14 ,  G02B5/00

CPC classification number: G03B21/625 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/08 ,  G02B5/003 ,  G02B5/005 ,  G02B5/021 ,  G02B5/0278 ,  G02B5/0294 ,  G02B27/0018 ,  G02B27/30 ,  G03B21/006 ,  G03B21/147 ,  G03B21/208 ,  G03B21/602

Abstract: A multi-layer projection screen includes a transparent substrate having first and second sides, a stray light rejection layer, and a lens array. The stray light rejection layer is disposed across the first side of the transparent substrate. The stray light rejection layer includes an array of pillar structures, wherein each pillar structure of the array of pillar structures includes an entrance aperture, an exit aperture, a substantially transparent pathway extending from the entrance aperture to the exit aperture, and an opaque side wall surrounding the transparent pathway. The lens array is disposed across the second side of the transparent substrate and optically aligned to the array of pillar structures. The stray light rejection layer blocks display light received from the lens array having an oblique trajectory that is greater than a threshold angle from a normal of the second side of the transparent substrate.

Abstract translation: 多层投影屏幕包括具有第一和第二侧面的透明基板，杂散光阻挡层和透镜阵列。 杂散光阻挡层设置在透明基板的第一侧。 杂散光阻挡层包括柱状结构的阵列，其中柱状结构阵列的每个柱状结构包括入口孔，出口孔，从入口孔延伸到出口孔的基本上透明的路径，以及不透明侧壁 围绕透明路径。 透镜阵列跨越透明基板的第二侧并且与柱结构阵列光学对准。 杂散光阻挡层阻挡从透镜阵列接收的具有比透明基板的第二侧的法线大的阈值角的倾斜轨迹的光。