Head-up display independent test site
First Claim
Patent Images
1. In a pilot'"'"'s head-up display having a frame which carries a combiner and projector means for projecting a test image on the combiner, an independent test sight, comprising:
- (a) a source of light; and
(b) target means, carried by the frame, for projecting said source of light in the form of a target image in the field of view of the pilot which, in the event that the projector means is properly aligned relative to the frame, essentially coincides with the test image as seen by an eye of the pilot.
3 Assignments
0 Petitions
Accused Products
Abstract
An independent test sight is described for a pilot'"'"'s head-up display (HUD). In one embodiment, the independent test site comprises a collimator assembly and an aligned periscope assembly. The collimator assembly comprises a source of light, a reticle, and a lens for projecting the image of the reticle. The periscope assembly comprises a rhomboid prism housed within the chassis of the HUD in such a manner that it can be pivoted from a stowed position to an erect position where it projects a reticle pattern in the field of view of the HUD combiner.
118 Citations
22 Claims
-
1. In a pilot'"'"'s head-up display having a frame which carries a combiner and projector means for projecting a test image on the combiner, an independent test sight, comprising:
-
(a) a source of light; and (b) target means, carried by the frame, for projecting said source of light in the form of a target image in the field of view of the pilot which, in the event that the projector means is properly aligned relative to the frame, essentially coincides with the test image as seen by an eye of the pilot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A head-up display for a pilot of a vehicle, comprising:
-
(a) a chassis removably carried by the vehicle; (b) an essentially transparent combiner foldably carried by said chassis and aligned to the pilot'"'"'s field-of-view; (c) a CRT, carried within said chassis having a face on which images are formed; (d) optical means, carried by said frame, for optically transferring said images from said face of said CRT to said combiner; (e) electronic means, carried by said frame, for controlling said CRT to produce a test image on the face of said CRT at a pre-selected location, whereby a test image is formed relative to said combiner with an eye of the pilot and said test image on said combiner defining a pilot viewing axis; (f) a source of light carried by said frame; and (g) target means, carried by said frame, for projecting said source of light at a location relative to said combiner which, in the event that said electronic means and said CRT and said optical means and said combiner are properly aligned relative to said chassis, essentially coincides with said test image as seen by said eye of the pilot. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification