Display device for ergonomic sights with a large field of observ

Details Display device for ergonomic sights with a large field of observ Display device for ergonomic sights with a large field of observ

1990-06-14

1991-09-24

Henry, Jon W.

Optical: systems and elements

Holographic system or element

Head up display

359630, G02B 2710, G02B 2714, G02B 532

Patent

active

050509624

ABSTRACT:
A display device for an ergonomic helmet-mounted sight with a large field of observation, including a collimation and combination optical unit joined to an image generator located on the same side as an observation point relative to the optical unit. The optical unit includes a holographic or dichroic mirror and a semitransparent plane mirror included in a transparent plate with parallel faces.

REFERENCES:
patent: 3942901 (1976-03-01), Ekstrand
patent: 4081209 (1978-03-01), Heller et al.
patent: 4761058 (1988-08-01), Evans et al.
patent: 4775218 (1988-10-01), Wood et al.
patent: 4830464 (1989-05-01), Cheysson et al.
patent: 4859030 (1989-08-01), Rotier

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