Lens deployment apparatus

摘要

The following invention relates to an improved lens apparatus for use in a head up display (HUD), particularly for providing a deployment means for a HUD.;The deployment device comprises a servomotor and cord assembly to move the carrier, wherein the carrier is biased, such that the first action is to deploy the lens, and then cause subsequent movement of the lens through an arc.

主权项

1. A partially reflective combiner deployment device, comprising a housing, at least one partially reflective combiner located on a lower edge of the housing, in a mount, said partially reflective combiner capable of adopting a first stowed configuration substantially within said housing and a second active configuration in which the partially reflective combiner is configured to project an image along a line of sight of a user, said mount comprising pivotal fixing points, said pivotal fixing points pivotally attached to a carrier, wherein said carrier is located within a running groove in said housing, wherein the running groove is an arc and has a minima at substantially a midpoint of the running groove, such that in use in said second active configuration, the carrier is located in said minima, such that said partially reflective combiner pivots about a centre line, wherein said centre line is an axis which intersects and is substantially orthogonal to a Principal axis of the partially reflective combiner.