Car head-up displays including an adjustable plane mirror lensle

Details Car head-up displays including an adjustable plane mirror lensle Car head-up displays including an adjustable plane mirror lensle

1991-11-08

1993-12-21

Henry, Jon W.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359633, G02B 2714

Patent

active

052725634

ABSTRACT:
A car head-up display projection unit has a substantially spherical concave mirror providing the optical power and which receives light at near axial incidence from a display source and reflects that light to an adjustable substantially plane mirror. Light from the projection unit is reflected from the car windshield to the driver's eyes.

REFERENCES:
patent: 3748020 (1973-07-01), Fischer et al.
patent: 4600271 (1986-07-01), Boyer et al.
patent: 5033818 (1991-07-01), Barr

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