Integrated head-up and panel display unit

Details Integrated head-up and panel display unit Integrated head-up and panel display unit

1987-09-24

1989-01-24

Corbin, John K.

35016223, 350166, G02B 2714, G02B 518, G02B 528

Patent

active

047997656

ABSTRACT:
An integrated head-up and panel display system for aircraft cockpits and the like is disclosed. The system utilizes a wavelength-sensitive fold mirror to separate the HUD image and the panel images. The system includes a monochromatic HUD image source for projecting the HUD image toward the fold mirror, and at least one panel display image source for projecting panel imagery toward the fold mirror. The transmission function of the fold mirror is notched at the wavelength of the monochromatic HUD image source. Thus, the fold mirror reflects the HUD image in the direction of the HUD optical combiner which reflects the HUD image to the system exit pupil. The fold mirror is adapted to transmit light in the visible spectra outside the narrow bandwidth of the HUD image source, so that the panel image is transmitted through the fold mirror to a look-down display screen assembly. The screen assembly may be a diffusion screen for providing an image plane at the screen, or an assembly of optical elements for providing a panel image superimposed at the system exit pupil.

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Proceeding of the S.I.D., vol. 19/4, 4th Quarter 1978, M. Ernstoff: "A Head-Up Display for the Future", pp. 269-179.
Abstracts of New Technology from the Air Force Systems Command, Air Force Avionics Laboratory, Wright-Patterson Air Force Base, (Dayton, Ohio, U.S.), M. N. Ernstoff et al.: "Liquid Crystal Diffraction Optics HUD", document No. PB81-970247, see Figure.

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