Aircraft head-up display

US5028119A · kind A · utility

Assignee

• Hughes Aircraft Company · US

Inventors

• Ronald G. Hegg · Los Angeles, US
• Mao-Jin Chern · Rancho Palos Verdes, US
• Paul Christopher Norton · St. Louis Park, US
• John Ferrer · Mason, US
• Steven A. Stringfellow · Waterford Township, US

Key dates

• Filing date: Apr 7, 1989
• Grant date: Jul 2, 1991
• Expiry date: Apr 7, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2027/0156
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A head-up instrument display for a vehicle including a light emitting image source for producing imaging illumination and a combiner including a spherical beam-splitter coating for partially reflecting the imaging illumination to produce a virtual image viewable by the vehicle operator without diverting attention from the outside scene. In one embodiment, the head-up instrument display is self-contained with the combiner being rotatable into a stowed position when not in use.