Optical projectors for head up displays

Details Optical projectors for head up displays Optical projectors for head up displays

1985-08-09

1986-09-16

Corbin, John K.

G02B 2714

Patent

active

046118772

ABSTRACT:
An optical projector (11) for a head-up display wherein light from a data source (15) passes through a first lens arrangement (23) and then into a wedge-shaped body (27) via a first face (29) of the body wherein the light is, in turn, internally reflected at second and third angled faces of the body (35 and 33) and then exits the body at the second face (35) to pass via a second lens arrangement (25) to the system combining (13) in a direction at an angle to that which light enters the body.
The arrangement of the projector facilitates the projector having lateral dimensions dictated by the data source (e.g. a CRT) rather than the optical elements of the projector.

REFERENCES:
patent: 2983183 (1961-05-01), Pickering
patent: 3526447 (1966-06-01), Wynne

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