Patent · US Active

Micro collimator system and method for a head up display (HUD)

US9523852B1 · kind B1 · utility

135Cited by

395References

20Claims

0Family size

Assignee

Rockwell Collins, Inc. · US

Inventors

Robert D. Brown · Lake Oswego, US
Eric P. Stratton · Portland, US
Charles W. Micka · Vista, US

Key dates

Filing date	Jul 30, 2015
Grant date	Dec 20, 2016
Priority date	—
Expiry date	Jul 30, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0178
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A head up display can use a catadioptric collimating system. The head up display includes an image source. The head up display also includes a collimating mirror, and a polarizing beam splitter. The light from the image source enters the beam splitter and is reflected toward the collimating mirror. The light striking the collimating mirror is reflected through the beam splitter toward a combiner. A field lens can include a diffractive surface. A corrector lens can be disposed after the beam splitter.

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