Laser radar system
Abstract
Abstract AN IMPROVED LASER RADAR SYSTEM COMPRISES A VARIABLE PULSE LASER TRANSMITTER A PORTION OF THE OUTPUT OF WHICH IS DELAYED, POLARIZED IN A FIRST DIRECTION AND LIMITED TO A MAXIMUM INTENSITY VALUE. THE REMAINDER OF THE TRANSMITTER OUTPUT IS DIRECTED TO A REMOTE TARGET WHEREBY IT IS REFLECTED BACK TO THE RECEIVER. THE RECEIVED REFLECTED ENERGY IS FILTERED AND POLARIZED IN A SECOND DIRECTION NORMAL TO THE SAID FIRST DIRECTION. THE RECEIVED AND DELAYED ENERGY IS COMBINED AND DIRECTED TO A SECOND HARMONIC GENERATING CRYSTAL AT A PREDETERMINED ORIENTATION. ONLY ENERGY HAVING BOTH ORTOGONAL POLARIZATION COMPONENTS OPERATES TO PRODUCE SECOND HARMONIC ENERGY WHICH IS FILTERED AND DETECTED BY A SECOND HARMONIC DETECTOR. THE DETECTOR OUTPUT SIGNAL IS COMPARED WITH THE DELAYED SIGNAL TO ESTABLISH THE DISTANCE TO THE TARGET.
Inventors
- 👤 Charles S Naiman
- 👤 Stuart D Pompian
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |