Title:
【発明の名称】画像ディスプレイシステム
Document Type and Number:
Japanese Patent JP2813461
Kind Code:
B2
Abstract:
A near-infinity image display system (10) has a convex faceplate cathode ray tube (12) positioned with respect to a concave mirror (14) such that the cathode ray tube (12) is in front of the center of curvature (16) of the mirror (14) and so that the mirror (14) reflects a near-infinity image of the visual display surface to an eyepoint (20) of an observer located below and in front of the center of curvature (16) of the mirror (14) and below the cathode ray tube (12). The cathode ray tube (12) is positioned at a height above the eyepoint (20) of the observer so that it does not interrupt the vertical field of view (24) of the image reflected to the eyepoint (20) of an observer. The concave mirror (12) may be a spherical, ellipsoidal or toroidal mirror. A multiple-display system (30) may be used to create a mosaic reflected image. In the multiple-display system (30), the convex faceplates of cathode ray tubes ( 12) are placed side by side, and optimally spaced apart at an angle (35) to provide a near-infinity mosaic reflection to an eyepoint (20) of a single observer or eyepoints (40) and (42) of multiple observers. In the multiple-display system (30), multiple observers are spaced apart a distance (41) that optimizes independent viewing of the near-infinity image by each observer.
Inventors:
Dougdale, John
Application Number:
JP50278693A
Publication Date:
October 22, 1998
Filing Date:
June 15, 1992
Export Citation:
Assignee:
Hughes Aircraft Company
International Classes:
G02B27/02; G02B27/01; G02B27/00; (IPC1-7): G02B27/02
Domestic Patent References:
| JP5834105U |
Other References:
【文献】米国特許4294515(US,A)
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)