Patent · US Active

Transparent projection screen

US11231602B2 · kind B2 · utility

1Cited by

7References

10Claims

0Family size

Assignee

Innovega, Inc. · US

Inventors

Mark Freeman · South Park Township, US
Jay Marsh · Bonsall, US
Jerome A. Legerton · San Diego, US

Key dates

Filing date	Apr 26, 2017
Grant date	Jan 25, 2022
Priority date	—
Expiry date	Jan 11, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/044
WIPO fieldOptics
WIPO sectorInstruments

Abstract

According to some embodiments, a transparent screen includes a first transparent substrate having a first transparent substrate index of refraction and including a surface relief pattern, a partially reflective coating formed on the surface relief pattern, and a second transparent substrate bonded over the partially reflective coating with an optical adhesive having the first transparent substrate index of refraction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.