CN210774617U - Optical axis consistency detection device - Google Patents
Optical axis consistency detection device Download PDFInfo
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- CN210774617U CN210774617U CN201921334903.8U CN201921334903U CN210774617U CN 210774617 U CN210774617 U CN 210774617U CN 201921334903 U CN201921334903 U CN 201921334903U CN 210774617 U CN210774617 U CN 210774617U
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Abstract
The utility model provides an optical axis consistency detection device, which comprises an optical platform and an optical axis parallelism detection mechanism, wherein a collimator is arranged on the optical platform and comprises an off-axis parabolic reflector and a plane reflector which are arranged in a staggered manner; the optical axis parallelism detection mechanism comprises an illumination light source, a light receiving and analyzing component and a moving component, wherein the illumination light source and the light receiving and analyzing component are connected with the moving component, parallel light to be detected irradiates the reflecting surface of the off-axis parabolic reflector, and is reflected to the light receiving and analyzing component through the plane reflector for detection. Adopt the technical scheme of the utility model, simple structure can make things convenient for more to measure and calibrate laser equipment, guarantees the parallelism and the uniformity of many light path detector optical axis, and it is convenient to maintain.
Description
Technical Field
The utility model belongs to the technical field of optics, a optical axis uniformity detection device is related to.
Background
With the continuous development of the comprehensive technology of the photoelectric system, multispectral and common-optical-path detection becomes a necessary trend, and the problem of optical axis parallelism of the multispectral and common-optical-path photoelectric system becomes an important content for measuring the performance of system components, so that the measurement of the optical axis parallelism of the multi-optical-path detector is very important, and no such equipment can meet the requirements at present, and needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
To above technical problem, the utility model discloses an optical axis uniformity detection device can make things convenient for more to measure and calibrate laser equipment, guarantees the parallelism and the uniformity of many light path detector optical axis.
To this end, the utility model discloses a technical scheme do:
an optical axis consistency detection device comprises an optical platform and an optical axis parallelism detection mechanism, wherein a collimator is arranged on the optical platform and comprises an off-axis parabolic reflector and a plane reflector which are arranged in a staggered mode;
the optical axis parallelism detection mechanism comprises an illumination light source, a light receiving and analyzing component and a moving component, wherein the illumination light source and the light receiving and analyzing component are connected with the moving component, parallel light to be detected irradiates the reflecting surface of the off-axis parabolic reflector, and is reflected to the light receiving and analyzing component through the plane reflector for detection.
The off-axis parabolic reflector can collimate the point light source into a high-quality parallel beam without central obscuration or can perfectly focus the parallel beam into a point. Especially for multi-wavelength or wide-spectrum light sources, the light beam collimation and focusing capability can be greatly improved. The optical platform is used as a fixing, mounting and debugging platform of parallel light for leveling and stabilizing a table top of an optical element, and the common platform needs measures such as vibration isolation and the like, so that the system is basically not changed due to external disturbance. By adopting the technical scheme, the optical axes of the aiming detector and the laser emitter are consistent, the light receiving and analyzing component aligns or tracks the measured optical target through the calibration of the collimator, so that the target is always in the field of view of the tested equipment, and the optical axes of the aiming detector and the laser emitter are basically consistent by adjusting the relative positions of the aiming detector and the laser emitter.
As a further improvement of the utility model, the caliber of the off-axis parabolic reflector is not less than 500 mm.
Further, the caliber of the off-axis parabolic reflector is 550 mm.
As a further improvement of the present invention, the surface roughness of the off-axis parabolic reflector is
As a further improvement of the utility model, the light receiving analysis component comprises a light spot analysis component and photosensitive photographic paper used for measuring the non-parallelism of the light emitting shaft and the tracking shaft. The light spot analysis assembly is used for measuring the non-parallelism degree of a light emission optical axis and a tracking axis and analyzing and testing the quality of a focal spot light beam; the photosensitive photographic paper is used for measuring the non-parallelism degree of a light emission axis and a tracking axis.
As a further improvement of the utility model, the facula analysis subassembly includes the photoelectric tracking appearance.
As a further improvement of the present invention, the moving assembly includes a guide rail and a slider, and the illumination light source and the light receiving and analyzing member are connected to the slider.
As a further improvement of the present invention, the optical axis parallelism detection mechanism further comprises a calibration device and an optical rotary table, wherein the calibration device comprises a short-tube long-focus collimator, a plane reflector, a gauss eyepiece and a microscope, and is used for periodically calibrating and maintaining the system; the optical rotary table is connected with the tested equipment to provide a supporting platform for the small-sized optical tested equipment.
As a further improvement, the optical axis uniformity detection device includes the reticle assembly, the illumination light source includes visible light source, infrared light source.
As a further improvement of the present invention, the illumination source is located at the focus of the collimator.
Compared with the prior art, the beneficial effects of the utility model are that:
adopt the technical scheme of the utility model, simple structure can make things convenient for more to measure and calibrate laser equipment, guarantees the parallelism and the uniformity of many light path detector optical axis, and it is convenient to maintain.
Drawings
Fig. 1 is a schematic light path diagram of the optical axis consistency detection device of the present invention.
Fig. 2 is the utility model relates to an optical axis uniformity detection device's detection light path schematic diagram.
Fig. 3 is a schematic diagram of a laser weapon according to the present invention.
The reference numerals include:
1-off-axis parabolic reflector, 2-plane reflector, 3-illumination light source, 4-laser receiving component, 5-optical platform, 6-guide rail, 7-laser equipment to be detected, 8-photoelectric tracker, 9-laser sensitive photographic paper;
11-aiming detector, 12-laser emitter, 13-cradle head, 14-connecting piece, 15-connecting seat, 16-adjusting fixing seat, 17-limit nail and 18-adjusting limit nail.
Detailed Description
Preferred embodiments of the present invention are described in further detail below.
As shown in fig. 1 and 2, an optical axis consistency detection apparatus includes an optical platform 5 and an optical axis parallelism detection mechanism, where the optical platform 5 is provided with a collimator, the collimator includes an off-axis parabolic reflector 1 and a planar reflector 2, and the off-axis parabolic reflector 1 and the planar reflector 2 are arranged in a staggered manner;
the optical axis parallelism detection mechanism comprises an illumination light source 3, a laser receiving component 4 and a moving component, wherein the illumination light source 3 and a light receiving analysis component are connected with the moving component, parallel light to be detected irradiates the reflecting surface of the off-axis parabolic reflector 1, and is reflected to the light receiving analysis component through the plane reflector 2 for detection. By adjusting the position of the illumination light source 3, the illumination light source 3 is positioned at the focal point of the collimator.
The laser receiving part 4 comprises a laser spot analysis component and/or laser sensitive photographic paper 9 for measuring the non-parallelism of a laser emission axis and a tracking axis. The laser spot analysis assembly is used for measuring the non-parallelism degree of a light emission optical axis and a tracking axis and analyzing and testing the quality of a focal spot light beam. The spot analysis assembly includes a photo-tracker 8.
In this example, the aperture of the off-axis parabolic reflector 1 is 550mm, and the surface roughness of the off-axis parabolic reflector 1 is
The moving assembly comprises a guide rail 6 and a sliding block, and the illumination light source 3 and the laser receiving part 4 are connected with the sliding block. The optical axis consistency detection device comprises a reticle assembly, and the illumination light source 3 comprises a visible light source and an infrared light source. The optical axis parallelism detection mechanism also comprises calibration equipment and an optical rotary table, wherein the calibration equipment comprises a short-cylinder long-focus collimator, a plane reflector 2, a Gaussian eyepiece and a microscope and is used for periodically calibrating and maintaining the system; the optical rotary table is connected with the tested equipment to provide a supporting platform for the small-sized optical tested equipment.
The working principle schematic diagram of the optical axis consistency detection device is shown in figure l; the off-axis parabolic reflector and the plane reflector 2 form a collimator, the illumination light source 3 is arranged at the focal point of the collimator through the guide rail 6, the light emitted by the illumination light source illuminates a reticle positioned on the focal plane of the collimator, the reticle is imaged at infinity after passing through the collimator and is detected by the detected laser device 7, the detected target image is positioned at the center of the field of view of the main tracking system of the detected laser device 7, the miss distance of the reticle image center in each field of view is detected by other tracking subsystems, and the unparallel degree of the optical axes of the two tracking subsystems is given. And then, the illumination light source 3 is moved away, the CCD detector of the laser receiving part 4 is arranged at the focus of the collimator (the positions of the CCD view field center and the reticle cross center at the focus are the same, namely the guide rail 6 is required to have higher repeated positioning precision), the tested device emits laser, the laser is converged on the laser receiving part through the collimator, the distance between the laser spot center and the CCD view field center is calculated through image processing, and the unparallel degree of the laser emission axis and the tracking axis of the tested device is further calculated. For the measurement of the non-parallelism of the strong laser emission axis, the photosensitive photographic paper is used for replacing a laser receiving part and is placed at the focal plane of the collimator, and the photographic paper is used for photosensitive the focal spot and artificially judging the center of mass of the facula.
The target of use implemented in this embodiment is a laser equipment non-lethal laser weapon, as shown in fig. 3, the laser equipment includes a laser emitter, a sighting detector 11 and a cradle head 13, the cradle head 13 is provided with a connecting seat 15, the laser emitter 12 is connected with the sighting detector 11 through a connecting piece 14, the connecting piece 14 is connected with an adjusting fixed seat 16, and the adjusting fixed seat 16 is connected with the connecting seat 15; the optical axis consistency detection device is characterized in that the connecting piece 14 is connected with the adjusting fixing seat 16 through the adjusting limit nail 18, and the aiming detector 11 is connected with the connecting piece 14 through the limit nail 17. The limit nail 17 comprises an upper limit nail and a lower limit nail.
The optical axis consistency detection device of the embodiment is adopted to enable the optical axes of the aiming detector 11 and the laser emitter to be consistent, the aiming detector and the laser emitter are calibrated through the collimator, the laser receiving component is aligned with or tracks a laser target to be detected, the target is enabled to be always in the visual field of equipment to be tested, and the optical axes of the aiming detector and the laser emitter are enabled to be basically consistent through adjusting the limit nails 17 and adjusting the limit nails 18. The target on the aiming detector 11 can be pitched by adjusting the upper limit nail and the lower limit nail; the left and right adjusting limit pins 18 can be adjusted to adjust the horizontal two-dimensional glazing axis direction, so as to ensure that the consistency of the optical axes of several sets reaches certain technical indexes through adjustment.
In the photoelectric measuring device, a laser range finder (transmitting/receiving)/aiming detector 11/infrared optical detection unit is involved, and the consistency of the optical axes of the three is required to be calibrated. When the multi-optical axis parallelism calibration is realized, the laser sensitive photographic paper 9 is inserted at the target, the focusing and the collection of laser beams are realized, and the calibration principle is as follows:
first, an off-axis parabolic mirror is placed perpendicular to the direction of laser emission.
(1) Laser optic axis parallelism adjustment
The laser receiving part is fixed by taking laser as a center, laser emission is adjusted to enable the optical axis of the laser receiving part to be parallel to the optical axis of the laser receiving part, a pupil is arranged at the rear part of the laser receiving part, and rear light can be observed through a microscope. After laser emission, the focus is on the laser target through the off-axis parabolic reflector, if the target is in the center of the field of view, the laser emission and receiving optical axes are parallel, otherwise, the optical axis of the laser emitter is adjusted until the target is in the center of the field of view.
(2) Optical axis parallelism adjustment for a sighting probe
The laser target is arranged at the center of a view field of the aiming detector, laser is emitted, the laser target is converged, and the optical axis of the aiming detector is adjusted to enable laser spots to accurately fall on the center of the view field of the aiming detector, and the optical axis of the aiming detector is parallel to the optical axis of the laser.
(3) Infrared optical axis parallelism adjustment
The same as the optical axis parallelism adjustment of the aiming detector.
The tracking effect is directly influenced by the quality of optical axis parallelism correction, and the adjusted parallelism degree can be quantitatively calibrated by reading the deviation amount of the aiming detector/infrared tracking deviating from the center of the field of view.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. An optical axis consistency detection device, characterized in that: the optical platform is provided with a collimator comprising an off-axis parabolic reflector and a plane reflector which are arranged in a staggered manner;
the optical axis parallelism detection mechanism comprises an illumination light source, a light receiving and analyzing component and a moving component, wherein the illumination light source and the light receiving and analyzing component are connected with the moving component, parallel light to be detected irradiates the reflecting surface of the off-axis parabolic reflector, and is reflected to the light receiving and analyzing component through the plane reflector for detection.
2. The optical axis coincidence detecting device according to claim 1, characterized in that: the caliber of the off-axis parabolic reflector is not less than 500 mm.
3. The optical axis coincidence detecting device according to claim 2, characterized in that: the surface roughness of the off-axis parabolic reflector is
4. The optical axis coincidence detecting device according to claim 1, characterized in that: the light receiving analysis member includes a light spot analysis assembly and a photosensitive photographic paper for measuring non-parallelism of a light emission axis and a tracking axis.
5. The optical axis coincidence detecting device according to claim 4, characterized in that: the light spot analysis assembly includes a photoelectric tracker.
6. The optical axis coincidence detecting device according to claim 1, characterized in that: the moving assembly comprises a guide rail and a sliding block, and the illumination light source and the light receiving and analyzing component are connected with the sliding block.
7. The optical axis coincidence detecting device according to claim 1, characterized in that: the optical axis parallelism detection mechanism further comprises calibration equipment and an optical rotary table, the calibration equipment comprises a short-cylinder long-focus collimator, a plane reflector, a Gaussian eyepiece and a microscope, and the optical rotary table is connected with the tested equipment.
8. The optical axis consistency detection apparatus according to any one of claims 1 to 7, characterized in that: the LED lamp comprises a partition board assembly, and the illumination light source comprises a visible light source and an infrared light source.
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| CN201921334903.8U CN210774617U (en) | 2019-08-16 | 2019-08-16 | Optical axis consistency detection device |
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| CN201921334903.8U CN210774617U (en) | 2019-08-16 | 2019-08-16 | Optical axis consistency detection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596257A (en) * | 2020-12-30 | 2021-04-02 | 中国科学院长春光学精密机械与物理研究所 | Optical axis calibration method of off-axis reflective optical lens |
| CN112683494A (en) * | 2020-12-03 | 2021-04-20 | 西安科佳光电科技有限公司 | Device and method for testing comprehensive performance parameters of optical lens |
| CN112985775A (en) * | 2021-02-08 | 2021-06-18 | 西安应用光学研究所 | Light spot tracker optical axis calibrating device based on accurate angle measurement |
| CN113188763A (en) * | 2021-04-16 | 2021-07-30 | 中国科学院西安光学精密机械研究所 | Device and method for detecting and debugging optical axis consistency in folded optical path component |
| CN113552713A (en) * | 2021-06-29 | 2021-10-26 | 上海科技馆 | All-day telescope scanning device and all-day telescope |
| CN113607383A (en) * | 2021-07-07 | 2021-11-05 | 湖北航天技术研究院总体设计所 | Device, system and method for measuring aiming deviation of laser optical axis |
| CN113702007A (en) * | 2021-09-02 | 2021-11-26 | 孝感华中精密仪器有限公司 | Off-axis beam axis difference calibration device and calibration method thereof |
-
2019
- 2019-08-16 CN CN201921334903.8U patent/CN210774617U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683494A (en) * | 2020-12-03 | 2021-04-20 | 西安科佳光电科技有限公司 | Device and method for testing comprehensive performance parameters of optical lens |
| CN112596257A (en) * | 2020-12-30 | 2021-04-02 | 中国科学院长春光学精密机械与物理研究所 | Optical axis calibration method of off-axis reflective optical lens |
| CN112985775A (en) * | 2021-02-08 | 2021-06-18 | 西安应用光学研究所 | Light spot tracker optical axis calibrating device based on accurate angle measurement |
| CN112985775B (en) * | 2021-02-08 | 2023-09-26 | 西安应用光学研究所 | Light spot tracker optical axis calibration device based on precise angle measurement |
| CN113188763A (en) * | 2021-04-16 | 2021-07-30 | 中国科学院西安光学精密机械研究所 | Device and method for detecting and debugging optical axis consistency in folded optical path component |
| CN113188763B (en) * | 2021-04-16 | 2023-12-08 | 中国科学院西安光学精密机械研究所 | Optical axis consistency detection and debugging device and method in folded optical path component |
| CN113552713A (en) * | 2021-06-29 | 2021-10-26 | 上海科技馆 | All-day telescope scanning device and all-day telescope |
| CN113607383A (en) * | 2021-07-07 | 2021-11-05 | 湖北航天技术研究院总体设计所 | Device, system and method for measuring aiming deviation of laser optical axis |
| CN113702007A (en) * | 2021-09-02 | 2021-11-26 | 孝感华中精密仪器有限公司 | Off-axis beam axis difference calibration device and calibration method thereof |
| CN113702007B (en) * | 2021-09-02 | 2023-09-19 | 孝感华中精密仪器有限公司 | Calibration device and calibration method for off-axis beam axial difference |
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