Display system
AssigneeBAE SYSTEMS plc
InventorJohn Thomas Anders
Life of this patent
Estimating the term…
Abstract
A helmet-mounted display system or a head-mounted display system comprises an imaging means for presenting to a user a first image of a real field of view, means for presenting a second image superimposed on the first image, and control means for controlling the contrast between the first and second images so as to maintain the visibility to the user of the second image.
Claims21
A display system comprising a first imaging means having an image intensifier which intensifies indirect radiation collected from a field of view, the imaging means outputting an intensified first image of the field of view to a user, a second imaging means for presenting a second image superimposed on the intensified first image, a sensor for sensing brightness of the intensified first image output from the first imaging means, and control means responsive to the sensor for controlling contrast between the first and second images so as to maintain visibility to the user of the second image during changes in intensification.
A method collecting indirect radiation from a field of view comprising:
- intensifying said radiation to output an intensified first image of the field of view for viewing by a user;
- presenting a second image superimposed on the first image;
- sensing brightness of the intensified first image, and controlling contrast between the superimposed second image and the intensified first image in response to the sensor brightness in order to maintain visibility of the second image during changes in intensification.
(canceled)
Dependencies are inferred from the claim text.