Millimeter-wave imaging system
US5047783A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved millimeter imaging system is disclosed which generates high quality images from the field of view. Such system can be employed in a variety of application ranging from providing an aircraft pilot with an image of the landing field in fog, rain, snow, blowing sand, etc. to detection of concealed non-metallic contraband. The system elements, in which different elements detect signals from different portions of the field of view, so that images of the entire field of view are generated in real time, without using electrical or mechanical scanning. The outputs of the array elements are mapped to display pixels. The resolution of such images has previously been limited by the response characteristics of array elements to energy from only a portion of the corresponding field of view. One aspect of the invention is a significant improvement in image resolution. In the preferred embodiment, a radiation redirecting element redirects incident radiation toward the centerline of each element, so that the elements are uniformly exposed to different portions of the corresponding field of view. As a result, a plurality of display pixels corresponding to different portion of the field …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.