Laser source location system
a laser source and location system technology, applied in direction finders, direction/deviation determining electromagnetic systems, instruments, etc., can solve the problems of low detector cost, laser beam source location reports are not precise, and pilots are temporarily flash blind,
Active Publication Date: 2019-05-16
AVALEX TECH LLC
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Enables precise detection of laser beam sources in three-dimensional space at a lower cost, improving flight safety by providing accurate location information and reducing the risk of future laser strikes.
Problems solved by technology
Such incidents can impact flight safety as laser light aimed at the cockpit can cause the pilot to be distracted and can even cause temporary flash blindness in the pilot.
As a result, laser beam source location reports tend to be imprecise.
Existing detectors for determining laser beam angle of incidence tend to be expensive and usually determine angle of incidence with respect to a single axis.
Because of this, a sensor system capable of locating a laser beam source in three dimensional space can be quite costly.
Method used
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[0019]A preferred embodiment of the invention is now described in detail. Referring to the drawings, like numbers indicate like parts throughout the views. Unless otherwise specifically indicated in the disclosure that follows, the drawings are not necessarily drawn to scale. As used in the description herein and throughout the claims, the following terms take the meanings explicitly associated herein, unless the context clearly dictates otherwise: the meaning of “a,”“an,” and “the” includes plural reference, the meaning of “in” includes “in” and “on.”
[0020]As shown in FIG. 1, one embodiment of a system 100 for detecting a direction of a source of a laser beam 10 includes a pixelated sensor 120 that is sensitive to the laser beam 10. The pixelated sensor 120 could include an optical video sensor array (such as a CMOS video sensor array or an array employing one of the many other laser light sensing technologies known to the art, including, e.g., InGaAs, HgCdTe, Vox, InSb) mounted on...
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A system for detecting a direction of a source of a laser beam includes a pixelated sensor that is sensitive to the laser beam. A mask is disposed between the source of a laser beam and the pixelated sensor. The mask includes an opaque portion that is opaque to the laser beam and a window portion that is at least translucent to the laser beam. When the laser impinges upon the mask an image of the window portion is projected onto the pixelated sensor. A processor determines an angle of incidence of the laser beam with respect to the mask by determining a number of pixels that the image of the window is offset from where the image of the window would be if the laser beam had been normal to the mask.
Description
BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to avionics systems and, more specifically, to an avionics system for detecting the source of a laser beam.2. Description of the Related Art[0002]Since the introduction of the laser pointer, incidents in which laser light has been directed toward aircraft during critical flight events (e.g., landing and takeoff) have increased substantially. Such incidents can impact flight safety as laser light aimed at the cockpit can cause the pilot to be distracted and can even cause temporary flash blindness in the pilot. Laser aircraft strike incidents can be of concern to all types of aviation, including: personal, commercial, law enforcement and military.[0003]Determining the location of a source of a laser strike is important in neutralizing laser strikes and preventing future laser strikes. However, in reporting the source of most laser strikes, the individuals making the reports estimate the location o...
Claims
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IPC IPC(8): G01S3/785G01S3/781G01S3/783
CPCG01S3/785G01S3/7835G01S3/781G01S19/51H04B10/1123
Inventor IHNS, JURGEN R.
Owner AVALEX TECH LLC