A laser targeter and calibration method for calibrating an aircraft landing taxi light

Abstract

This invention belongs to the technical field of aircraft external lighting auxiliary devices, and discloses a laser calibration device and calibration method for calibrating aircraft landing taxi lights. The device includes: a retaining ring 1, a baffle 2, a bracket 3, and a laser assembly 4. The baffle 2 is mounted on the bracket 3, and the bracket 3 and the retaining ring 1 are assembled into a ring shape and mounted on the aircraft landing taxi light, with the baffle 2 parallel to the front surface of the landing taxi light. The laser assembly 4 is mounted at the center of the bracket 3, and this center coincides with the beam center of the landing taxi light. This calibration device can easily and quickly calibrate the beam center of the mounted light fixture, and has high calibration accuracy.

Description

Technical Field

[0001] This invention belongs to the technical field of aircraft external lighting auxiliary devices, and particularly relates to a laser target calibrator and calibration method for calibrating aircraft landing taxi lights. Background Technology

[0002] The function of aircraft landing taxi lights is to provide normal landing and taxiing illumination during the landing and taxiing phase at night or in poor visibility conditions, illuminating the runway and landmarks to ensure safe landing and taxiing. The illumination range of the landing taxi lights must be within the pilot's effective visual range. Therefore, the illumination range of the landing taxi lights needs to be adjusted during installation. Because the illumination range of landing taxi lights is relatively large, it is difficult for the human eye to determine its exact extent; a laser is needed to point out the center of the landing taxi light beam for calibration. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a simple and efficient laser calibration device for landing taxi lights, which addresses the difficulties in installation and calibration of existing landing taxi lights. This calibration device can quickly and easily calibrate the center of the beam of the installed light fixture with high calibration accuracy.

[0004] The technical solution of the present invention:

[0005] Technical Solution 1:

[0006] A laser calibration device for calibrating aircraft landing taxi lights includes: a retaining ring 1, a baffle 2, a bracket 3, and a laser assembly 4.

[0007] The baffle 2 is mounted on the bracket 3. The bracket 3 and the baffle ring 1 are assembled into a ring shape and mounted on the aircraft landing taxi light. The baffle 2 is parallel to the front surface of the landing taxi light. The laser assembly 4 is mounted at the center of the bracket 3. The center coincides with the beam center of the landing taxi light.

[0008] The features and further improvements of the first technical solution of the present invention are as follows:

[0009] (1) The bracket 3 is a four-claw-type support structure that fixes the laser assembly 4 with the baffle 1, and the laser assembly 4 has threads at the center of the bracket 3.

[0010] (2) The part of the retaining ring 1 and the bracket 3 that is fixed to the lamp is semi-circular, which can be fastened to lamps of different diameters; the bracket 3 and the baffle 2 are fastened with screws, and the retaining ring 1 and the bracket 3 are also fastened with screws.

[0011] (3) The rear end of the laser assembly 4 adopts a threaded structure. The laser assembly 4 is located at the rear end of the laser. The baffle 2 is fixed on one side of the bracket 3. By tightening or loosening the threaded structure of the laser assembly 4, the laser assembly's light-up switch is brought into contact with or away from the baffle 2, thereby turning the laser on or off.

[0012] Technical Solution Two:

[0013] A calibration method for calibrating aircraft landing taxi lights, the method employing the laser target calibrator described in technical solution one, the method comprising:

[0014] Step 1: Install the baffle on the bracket, and install the bracket and the retaining ring on the landing taxi light. The baffle is parallel to the front surface of the landing taxi light.

[0015] Step 2: The laser assembly is installed at the center of the bracket, and this installation position is concentric with the landing taxi light.

[0016] Step 3: Turn on the laser assembly and adjust the position of the landing taxi light so that the laser spot is located on the preset calibration point. This laser spot and the center of the landing taxi light beam are on the same central axis, so that the center of the landing taxi light beam also passes through the calibration point. The calibration is completed, and the laser assembly is turned off.

[0017] Step 4: Remove the laser target calibrator.

[0018] The features and further improvements of the second technical solution of the present invention are as follows:

[0019] (1) In step three,

[0020] Unscrew the protective end cap at the rear of the laser assembly and screw the laser assembly into the center mounting position on the bracket. The laser will light up when the switch of the laser assembly contacts the baffle at the center mounting position. When the laser is not in use, loosen the laser assembly to ensure that the laser assembly is in the off state.

[0021] (2) In step one,

[0022] The landing taxi light is pre-installed on the aircraft without being locked. A laser calibration device is installed on the landing taxi light, and a calibration point for the required center light intensity of the landing taxi light is set at the aircraft runway position.

[0023] (3) The laser assembly has a range of more than 120 meters and the wavelength range is within the range visible to the human eye, and has a dot-shaped light spot of less than 10 mm.

[0024] The device of this invention is simple to install and easy to operate. It adopts a hoop structure to install the laser target calibrator on the lamp. The laser beam points to the center of the lamp beam, which increases the portability of the target calibrator. The laser target calibrator points to the center of the lamp beam by concentric circle principle with the lamp, which ensures that the laser optical axis and the lamp optical axis are on the same axis, thus ensuring the accuracy of the target calibration device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the assembly structure of a laser target calibrator for calibrating aircraft landing taxi lights, provided by an embodiment of the present invention.

[0026] Figure 2 This is an exploded structural diagram of a laser target calibrator for calibrating aircraft landing taxi lights, provided by an embodiment of the present invention.

[0027] Among them, 1-retaining ring, 2-baffle, 3-bracket, 4-laser assembly. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments:

[0029] To improve the convenience of lamp calibration, a ground laser calibration device for aircraft landing taxi lights was designed. This laser calibration device has a simple structure and is easy to operate. By using the concentric circle principle with the lamp, it ensures the accuracy of calibration results and meets the ground calibration requirements of landing taxi lights.

[0030] The present invention provides a device for ground laser calibration of aircraft landing taxi lights, the device consisting of a retaining ring 1, a baffle 2, a bracket 3 and a laser assembly 4.

[0031] In a preferred embodiment, the calibration device defines the reference horizontal plane of the landing taxiing light based on the housing shape. First, the baffle 2 is installed on the bracket, and then the bracket 3 and the retaining ring 1 are assembled and installed on the light. At this time, the baffle 2 should be parallel to the front surface of the landing taxiing light. The laser is installed at the pre-defined installation position in the center of the calibration device. This installation position is determined to be concentric with the light. The protective end cap at the rear of the laser assembly 4 is unscrewed, and the laser assembly 4 is screwed into the installation position in the center of the bracket 3. The laser assembly 4 is activated by contacting the baffle 2 at the center installation position. When the laser is not in use, the laser assembly 4 is loosened to ensure that it is in the off state, preventing the laser from entering the eyes. The laser is activated, and the position of the light is adjusted so that the laser spot is located on the calibration reference point of the photometer plate of the detection device. This laser spot and the center of the light beam are on the same central axis, that is, the center of the light beam also passes through this calibration point, thus completing the calibration. After calibration, the calibration device can be removed.

[0032] The target calibrator of this invention can be used on aircraft landing taxi lights to calibrate the central light intensity of the emitted light, ensuring that the center of the light beam is focused within a specific range. For example... Figure 1 and Figure 2 The diagram shows the structure of the aircraft landing taxi light ground lighting calibration device provided by the present invention, including a retaining ring 1, a baffle 2, a bracket 3, and a laser assembly 4. The baffle 2 supports the laser and is fixed to the bracket; the retaining ring 1 is used to partially close the bracket onto the calibrated light fixture; the laser has a range greater than 120 meters, and its wavelength falls within the range visible to the human eye, with a dotted light spot smaller than 10 mm. The laser has a removable battery for convenient use and a lifespan of up to 1000 hours.

[0033] In this invention, the bracket 3 is supported by four "fixed claw" pillars, which can effectively fix the laser with the baffle, and the central mounting position is threaded for easy disassembly; the part of the retaining ring 1 that fixes the lamp to the bracket 3 is semi-circular, which can be fastened to lamps of different diameters; the bracket 3 and the baffle 2 are fastened with screws, and the retaining ring 1 and the bracket 3 are also fastened with screws. This fastening makes the target calibration device easy to disassemble and easy to install.

[0034] In this invention, the laser mounting position on the bracket 3 uses a threaded hole, and the rear end cover of the laser also uses threads. This cleverly utilizes the stability of the fastening between the threads and the threaded hole to provide stable conditions for the laser and increase the accuracy of calibration data during the calibration process. Simultaneously, the laser mounting threaded hole, the bracket, and the retaining ring form a concentric circle around the lamp fixing ring, and this concentric circle is constrained in the design and manufacturing process. This concentric circle ensures that the laser emission point is at the center intensity of the lamp.

[0035] In this invention, the laser's power switch is located at the laser's rear end by utilizing the properties of the thread. The laser can be turned on or off by tightening or loosening the thread.

[0036] In this invention, a photometer plate of a detection device is used to calibrate a lamp with an installed calibration device. The laser is lit, and the lamp position is adjusted so that the laser spot is located on the calibration reference point of the photometer plate. This laser spot and the lamp beam center are on the same central axis, meaning the lamp beam center also passes through this calibration point. After calibration, the lamp is pre-installed on the aircraft without being locked. The calibration device is then installed on the lamp. A calibration point for the required central light intensity of the lamp is established at the aircraft runway location in the cockpit. The laser is lit, and the lamp's pitch position is adjusted until the laser beam illuminates the calibration point on the runway. The lamp is then locked, and the calibration device is removed, thus completing the aircraft calibration of the lamp.

[0037] The landing taxiing light calibration device in this invention is installed as follows:

[0038] Step 1, (Installation of the Target Calibration Device) This target calibration device defines the reference horizontal plane of the light fixture based on the housing shape of the landing taxiing light. First, install the baffle 2 on the bracket, then assemble the bracket 3 and the retaining ring 1 and install them on the light fixture. At this time, the baffle 2 should be parallel to the front surface of the landing taxiing light.

[0039] Step 2, (Laser Installation) Install the laser at the designated installation position in the center of the target calibration device. This installation position is determined to be concentric with the light fixture. Unscrew the protective end cap at the rear of the laser assembly 4 and screw the laser assembly 4 into the installation position in the center of the bracket. The laser assembly 4 will light up when its switch contacts the baffle 2 at the center installation position. When the laser is not in use, loosen the laser assembly 4 to ensure that the laser assembly is in the off state and prevent the laser from shining into people's eyes.

[0040] Step 3: (Calibration) Turn on the laser and adjust the position of the lamp so that the laser spot is located on the calibration reference point of the photometer plate of the detection device. This laser spot and the center of the lamp beam are on the same central axis, that is, the center of the lamp beam also passes through the calibration point, thus completing the calibration.

[0041] Step 4 (Disassembly of the target calibration device) After calibration is complete, the target calibration device can be removed.

[0042] The beneficial effects of the present invention are as follows: The device of the present invention is simple to install and easy to operate. It adopts a hoop structure to install the laser target calibrator on the lamp. The laser beam points to the center of the lamp beam, which increases the portability of the target calibrator. The laser target calibrator points to the center of the lamp beam by concentric circle principle with the lamp, which ensures that the laser optical axis and the lamp optical axis are on the same axis, thus ensuring the accuracy of the target calibration device.

Claims

1. A laser boresight for calibrating an aircraft landing taxi light, characterized by, include: The retaining ring (1), the baffle (2), the bracket (3) and the laser assembly (4); The baffle (2) is mounted on the bracket (3), the bracket (3) and the baffle ring (1) are assembled into a ring shape and mounted on the aircraft landing taxi light, and the baffle (2) is parallel to the front surface of the landing taxi light; the laser assembly (4) is mounted at the center of the bracket (3), and the center coincides with the beam center of the landing taxi light; The bracket (3) is a four-fixed claw-shaped support structure, which, together with the retaining ring (1), fixes the laser assembly (4), and the laser assembly (4) has a thread at the center of the bracket (3); The part of the retaining ring (1) and the bracket (3) that is fixed to the lamp is semi-circular, which can be fastened to lamps of different diameters; the bracket (3) and the baffle (2) are fastened with screws, and the retaining ring (1) and the bracket (3) are also fastened with screws; The laser assembly (4) has a threaded structure at the rear end. The laser assembly (4) has a switch at the rear end. The baffle (2) is fixed on one side of the bracket (3). The laser is turned on or off by tightening or loosening the threaded structure of the laser assembly (4) so ​​that the laser assembly's switch is in contact with or away from the baffle (2). The calibration method using the laser target calibrator is as follows: Step 1: Install the baffle on the bracket, and install the bracket and the retaining ring on the landing taxi light. The baffle is parallel to the front surface of the landing taxi light. Step 2: The laser assembly is installed at the center of the bracket, and this installation position is concentric with the landing taxi light. Step 3: Turn on the laser assembly and adjust the position of the landing taxi light so that the laser spot is located on the preset calibration point. This laser spot and the center of the landing taxi light beam are on the same central axis, so that the center of the landing taxi light beam also passes through the calibration point. The calibration is completed, and the laser assembly is turned off. Step 4: Remove the laser target calibrator.

2. A laser boresight device for calibrating an aircraft landing taxi light according to claim 1, wherein, In step three, Unscrew the protective end cap at the rear of the laser assembly and screw the laser assembly into the center mounting position on the bracket. The laser will light up when the switch of the laser assembly contacts the baffle at the center mounting position. When the laser is not in use, loosen the laser assembly to ensure that the laser assembly is in the off state.

3. A laser boresight device for calibrating an aircraft landing taxi light according to claim 1, wherein, In step one, The landing taxi light is pre-installed on the aircraft without being locked. A laser calibration device is installed on the landing taxi light, and a calibration point for the required center light intensity of the landing taxi light is set at the aircraft runway position.

4. A laser boresighter for calibrating an aircraft landing light as in claim 1, wherein, The laser assembly has a range of more than 120 meters, and the wavelength range is within the range visible to the human eye, with a dotted light spot of less than 10 mm.

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