Optical system for observation of virtual image

Details Optical system for observation of virtual image Optical system for observation of virtual image

1999-05-14

2000-10-24

Schuberg, Darren E.

Optical: systems and elements

Holographic system or element

Head up display

359 13, 359631, 345 8, G03H 100

Patent

active

061376027

ABSTRACT:
In an optical system used for observing a virtual image, in which a Lippman volumetric hologram is used as a reflection type holographic optical element, the generation of aberration needs to be minimized to enable an optimum virtual image to be viewed. To this end, at least one optical element and the Lippman volumetric hologram 10 are provided for cooperating to form a virtual image of the display image on an image display device 6. The Lippman volumetric hologram 10 is contoured so that its curvature is in the same direction as the curvature of interference fringes operating for generating a refractive power in this Lippman volumetric hologram 10.

REFERENCES:
patent: 3633988 (1972-01-01), Farrar
patent: 5305124 (1994-04-01), Chern et al.
patent: 5712649 (1998-01-01), Tosaki
Magarinos et al., "Holographic Mirrors", Optical Engineering, vol. 24, No. 5, pp. 769-780, Sep. 1985.

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