Lateral and longitudinal chromatic dispersion correction in disp

Details Lateral and longitudinal chromatic dispersion correction in disp Lateral and longitudinal chromatic dispersion correction in disp

1992-07-23

1995-03-07

Ben, Loha

Optical: systems and elements

Holographic system or element

Head up display

359 15, G03H 100, G02B 532

Patent

active

053963490

ABSTRACT:
An optical system for a display having a combiner (1) with a non-conformal reflection hologram and in which an intermediate image (II) of a display source is formed at a location in the light path to and spaced from the combiner (1), the system comprising at least one diffractive element (5,7) disposed in the light path between the display source (2) and the intermediate image (II) and arranged to counter, at least partially, the chromatic dispersion of the non-conformal reflection hologram (1).

REFERENCES:
patent: 3940204 (1976-02-01), Withrington
patent: 4218111 (1980-08-01), Withrington et al.
patent: 4613200 (1986-09-01), Hartman
patent: 4669810 (1987-06-01), Wood
R. N. Winner & J. H. Brindle, "A Holographic Visor Helment-Mounted Display System", (a conference paper), 1974 Conference held by the IEEE, pp. 43-53.
R. J. Withrington, "Optical Design of a Holographic Visor Helmet-Mounted Display", SPIE vol. 147, Computer-Aided Optical Design (1978), pp. 161-170.

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