초록 ▼

Helmet mounted display apparatus for use in aircraft and rotorcraft includes an first image source for generating images comprising pilotage symbol information, a second image source for sensing and generating images of the exterior scene, and relay optical components that optically superimpose the

Helmet mounted display apparatus for use in aircraft and rotorcraft includes an first image source for generating images comprising pilotage symbol information, a second image source for sensing and generating images of the exterior scene, and relay optical components that optically superimpose the two images together and subsequently project the superimposed image into the observer\s forward field of view.

대표청구항 ▼

Helmet mounted apparatus for use in a display system, comprising: a helmet, adapted to be worn by an observer, having an outer surface with an opening provided in proximity to the eyes of the observer; a first image source disposed on said helmet to provide an image; relay optic means, comprising a

Helmet mounted apparatus for use in a display system, comprising: a helmet, adapted to be worn by an observer, having an outer surface with an opening provided in proximity to the eyes of the observer; a first image source disposed on said helmet to provide an image; relay optic means, comprising a plurality of optical components and being disposed on said helmet outer surface, for receiving the image from said first image source at an entrance pupil thereof and for guiding the image along an optical path to an intermediate image focal plane located in proximity to said outer surface opening, said plurality of optical components including a first lens disposed along the optical path at a predetermined distance from said first image source, said relay optic means being adapted to engage an eyepiece; a second image source disposed on said helmet to provide an image; an optical beamsplitter component disposed in the optical path between said first image source and said first lens both to reflect the image provided by said second image source in a direction along the optical path toward said first lens and to transmit the image from said first image source along the optical path toward said first lens, an optical path distance from said second image source to said first lens being equal to the predetermined optical path distance from said first image source to said first lens, said beamsplitter component being so spatially positioned as to effectively superimpose the image from said second image source upon the image from said first image source, the image in proximity to said intermediate image focal plane being a focused form of the superimposed image at said first lens; and eyepiece means for receiving the superimposed image from said intermediate image focal plane at an input aperture thereof and for presenting, in the observer\s forward field of view, the superimposed image as focused in the optical path in proximity to said intermediate image focal plane, said eyepiece means being adapted to releasably engage said relay optic means, said eyepiece means, when engaged, receiving the superimposed image from said intermediate image focal plane and presenting the image in the observer\s forward field of view.