Substrate-guide optical device

Patent metadata

Field	Value
Publication number	US-2016170213-A1
Application number	US-201615051323-A
Country	US
Kind code	A1
Filing date	Feb 23, 2016
Priority date	Feb 10, 2005
Publication date	Jun 16, 2016
Grant date	—

Abstract

An optical device, including a light waves-transmitting substrate has two major surfaces and edges, optical means for coupling light into the substrate by total internal reflection, and a plurality of partially reflecting surfaces ( 22 a, 22 b ) carried by the substrate. The partially reflecting surfaces ( 22 a, 22 b ) are parallel to each other and are not parallel to any of the edges of the substrate, one or more of the partially reflecting surfaces ( 22 a, 22 b ) being an anisotropic surface. The optical device has dual operational modes in see-through configuration. In a first mode, light waves are projected from a display source through the substrate to an eye of a viewer. In a second mode, the display source is shut off and only an external scene is viewable through the substrate.

First claim

What is claimed is:

1 . An optical system, comprising:
a first viewing device including a light waves-transmitting substrate having at least two major surfaces and edges; an electronic display source; an optical device for coupling light waves from the electronic display source into the substrate by total internal reflection to form an electronic display, and a plurality of partially reflecting surfaces carried by the substrate, the partially reflecting surfaces being parallel to each other and not parallel to any of the edges of the substrate; a second viewing device, separated from the first viewing device, the second viewing device is a hand-held display; wherein the two viewing devices are connected to each other.

2 . The optical system according to claim 1 , wherein the first viewing device is embedded inside a spectacle frame.

3 . The optical system according to claim 1 , wherein the hand-held display is a cellular phone.

4 . The optical system according to claim 1 , wherein the hand-held display is a hand watch.

5 . The optical system according to claim 1 , further comprising a mechanical body, wherein the viewing devices are integrated into the mechanical body.

Assignees

• Lumus Ltd

Inventors

• Amitai Yaakov

Classifications

• G02B27/0176

  characterised by mechanical features · CPC title

• G02B5/30

  Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title

• G02B2027/0125

  Field-of-view increase by wavefront division · CPC title

• G02B2027/0118

  comprising devices for improving the contrast of the display / brillance control visibility · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title