Display system with means for variably deflecting an array of optical emitters
AssigneeGEC-Marconi Limited
InventorsRobert K. McEwen, Alan D. MacLeod
Life of this patent
Estimating the term…
Abstract
An imager comprises a lens 31 focusing radiation onto a sensor array 32, and a chopper comprising sectors which refract radiation in different directions such that an image is microscanned upon the sensor array 32. The chopper 4 is driven by motor 34 which also drives a polygon 37. The sensor array is read line by line and displayed on a linear array of LEDs 36 which appear to an observer observing through eye piece 38 as a complete two dimensional image as seen by the sensor ray 32. This is due to the persistence vision. Each facet of the polygon 37 is cut such that it compensates for the offset produced by the microscan.
Claims19
An imager comprising:
- a lens for focusing received radiation onto a two dimensional array of sensor elements;
- mechanical means for displacing an image incident on the array of sensor elements relative to the array to effect microscan;
- an array of optical elements which generate an output in dependence upon radiation incident on the sensor array;
- and means for variably deflecting radiation from the optical elements, in synchronisation with the means for effecting microscan.
An imager as claimed in claim for imaging thermal radiation.
Dependencies are inferred from the claim text.