US4600305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic energy centroid locator and processor (declp)
Assignee: United States Department of the Army
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Filing: 1984-08-20
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Granted: 1986-07-15
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Expires: 2004-08-20
Abstract
Abstract The laser source energy and the target source energy goes through a commonptical path to a beam splitter. The energy from the target source is filtered, allowing only the laser information to pass through to the laser quadrant detector. The second path from the beam splitter has a blocking filter to block the laser energy, and the remaining energy, that of the target source, is measured by the target quadrant detector. The geometric translator is a computer controlled azimuth and elevation gymbal device which tracks (drivers to null) the target source. The target source is a strobe lamp. The angular information from the dual quadrant detectors and the geometic translator are fed into an compact mini-computer.
Inventors
- 👤 Randolph W. Priddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:21
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/48; G01S7/497; G01S7/4972
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
153 words
A testing system for testing a laser designator which is designed to illuminate a spot on a target and maintain the spot in the center of the target comprising a reference electromagnetic energy source located on the target and radiating reference electromagnetic energy out from a center portion of said target; said laser designator being remotely located from said target and illuminating a spot on said target with a laser beam; a measuring device located spatially from said target so as to receive radiation reflected from the spot illuminated by said laser beam and to receive said reference electromagnetic energy; said reference electromagnetic energy and said reflected laser energy following the same optical path from said target to said measuring device; and said measuring means measuring the location of the spot illuminated by said laser beam relative to the location of said reference source and therefore relative to the center of said target.
Claim 2
Dependent Claim
153 words
A testing system for testing a laser designator which is designed to illuminate a spot on a target and maintain the spot in the center of the target comprising a reference electromagnetic energy source located on the target and radiating reference electromagnetic energy out from a center portion of said target; said laser designator being remotely located from said target and illuminating a spot on said target with a laser beam; a measuring device located spatially from said target so as to receive radiation reflected from the spot illuminated by said laser beam and to receive said reference electromagnetic energy; said reference electromagnetic energy and said reflected laser energy following the same optical path from said target to said measuring device; and said measuring means measuring the location of the spot illuminated by said laser beam relative to the location of said reference source and therefore relative to the center of said target.
Claim 3
Dependent Claim
98 words
A system as set forth in claim 1 wherein said reference electromagnetic energy and said laser beam have different frequencies; first and second detectors in said measuring device; said detectors being located to receive electromagnetic energies from said target; first and second filter means for allowing only radiation reflected by said laser beams to enter said first detector means and allowing only electromagnetic energy from said reference electromagnetic energy source to enter said second detector; and said detectors providing information as to the location of the energy it receives relative to a pointing position of said measuring device.
Claim 4
Dependent Claim
32 words
A system as set forth in claim 2 wherein said measuring means further has a beam splitter for splitting the energy received by said measuring device into said first and second detectors.
Claim 5
Dependent Claim
49 words
A system as set forth in claim 3 wherein said target contains a window which is relatively small compared to the size of the spot illuminated by said laser designator; and said window passing the frequency of said reference electromagnetic energy and reflecting the energy from said laser beam.
Claim 6
Dependent Claim
34 words
A system as set forth in claim 4 wherein said measurement device further has variable neutral density filters located to adjust the intensity of the electromagnetic energy entering into the first and second detectors.
Claim 7
Dependent Claim
27 words
A system as set forth in claim 5 wherein processing devices are connected to the outputs of said detectors for determining the accuracy of the laser designator.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |