Radiant energy tracking device
US4006356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1961 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Oct 27, 1981 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/786
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
1. In a radiant energy tracking device sensitive to radiation of scanned targets the combination of; PA1 Optical focusing means having an optical axis for receiving modulated signal pulses reflected from a target and forming a target image at a focal point, PA1 Means for nutating said image in the focal plane about said optical axis, PA1 Detector means comprising four surfaces, each surface occupying a quadrant in the circle encompassed by said image as it nutates about said optical axis, PA1 Said detector means providing an output pulse for each of said quadrants, the pulse width being indicative of the duration of said target image on each said surface, and PA1 Summing means responsive to said output signals for providing signals proportional to the deviation of said target from said optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.