CN110824697A - Self-adaptive optical system combining artificial beacon and wavefront-free detection - Google Patents
Self-adaptive optical system combining artificial beacon and wavefront-free detection Download PDFInfo
- Publication number
- CN110824697A CN110824697A CN201911148452.3A CN201911148452A CN110824697A CN 110824697 A CN110824697 A CN 110824697A CN 201911148452 A CN201911148452 A CN 201911148452A CN 110824697 A CN110824697 A CN 110824697A
- Authority
- CN
- China
- Prior art keywords
- wavefront
- light
- beacon
- artificial beacon
- artificial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/06—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the phase of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
Abstract
The invention discloses an artificial beacon and wavefront-free detection combined self-adaptive optical system, which comprises an artificial beacon transmitting system, a receiving telescope, an artificial beacon optical compensation system and a wavefront-free detection compensation system, wherein the artificial beacon optical compensation system comprises a first wavefront corrector, a first beam splitting mechanism, an artificial beacon wavefront detector and a wavefront controller, and a beam shrinking mechanism is arranged between the first wavefront corrector and the receiving telescope; the wavefront-free detection compensation system comprises a second wavefront corrector, a second beam splitting mechanism, a focusing objective, a target performance detector and an optimization controller. By adopting the scheme, the technical characteristics of wavefront correction and wavefront-free detection by using the artificial beacon can be fully utilized, the adaptability of the system and the imaging quality of the system are effectively improved, and the method has the advantages of simple and compact structure and easiness in implementation, so that the method has wide application prospect.
Description
Technical Field
The invention relates to an optical device, in particular to an adaptive optical system combining an artificial beacon and wavefront-free detection.
Background
Adaptive Optics (AO) is a new technology that has been developed over the last 20 years. The key point is to detect the distortion of the wave front disturbance caused by the atmospheric turbulence so as to compensate and correct the observation target. When the brightness of an object is insufficient or no sidereal meeting the conditions exists in the vignetting angle of the object, the artificial beacon is needed to be used for detecting the wave front distortion. There are two main beacons at present: one is a sodium beacon, and backscattered light generated by resonance scattering of 90km high-altitude sodium atoms is used as a beacon; the other is a Rayleigh beacon, which uses the backward Rayleigh scattering of 5-25km of atmospheric molecules as a beacon.
When the distortion generated by the atmospheric turbulence is detected by using the artificial beacon, the transmission direction of the laser beam is irregularly changed under the influence of the atmospheric turbulence when the laser beam is transmitted upwards, the position of a beacon light spot sampled by the wavefront sensing is unknown relative to the optical axis of the telescope, scattered light returns to the imaging telescope in the original direction according to the reversible light path, and the atmospheric inclination directions of the uplink and the downlink are just opposite and mutually offset, so that the atmospheric inclination information cannot be detected.
Secondly, because the height of the beacon is limited, sampling by using the artificial beacon has the defect of incomplete turbulence sampling, and the specific principle is as shown in fig. 2, at the moment, the turbulence information sampled by using the beacon is used for correcting the turbulence information experienced by the target, namely, the wavefront information of a conical area is used for replacing a cylindrical area, so that the sampling of the wavefront information is incomplete; thirdly, when the turbulence of an observation station site is strong, the fluctuation of the light intensity of the wavefront is severe, especially in horizontal atmospheric laser communication or astronomical observation at a large zenith angle, such strong turbulence can occur frequently, at the moment, the wavefront can be interrupted or discontinuous, so that the conventional wavefront correction cannot be correctly restored to form the wavefront, the closed loop cannot be stable, and the defects seriously restrict the correction performance of the artificial beacon self-adaptive optical system.
Disclosure of Invention
In view of this, the invention provides an adaptive optical system combining an artificial beacon and wavefront-free detection, which is particularly suitable for an environment with poor atmospheric observation conditions and greatly improves the correction accuracy.
The technical scheme is as follows:
an adaptive optics system combining artificial beacons and wavefront-free detection is characterized in that: the artificial beacon light compensation system comprises a first wavefront corrector, a first light splitting mechanism, an artificial beacon wavefront detector and a wavefront controller, wherein the wavefront controller is used for receiving signals of the artificial beacon wavefront detector and adjusting the first wavefront corrector;
the wavefront-free detection compensation system comprises a second wavefront corrector, a second beam splitting mechanism, a focusing objective, a target performance detector and an optimization controller, wherein the optimization controller is used for receiving signals of the target performance detector and adjusting the second wavefront corrector, the focusing objective and the target performance detector are sequentially arranged on a reflection light path of the second beam splitting mechanism, the second wavefront corrector is positioned on a transmission light path of the first beam splitting mechanism, a target light beam is transmitted to the second wavefront corrector through the first beam splitting mechanism and then transmitted to the second beam splitting mechanism, and at least part of the target light is reflected by the second beam splitting mechanism and then focused by the focusing objective to enter the target performance detector.
By adopting the scheme, the artificial beacon light and the target light generated in the high altitude of the artificial beacon transmitting system are simultaneously received by the receiving telescope, then are changed into parallel light matched with the diameter of a rear component through the beam contracting mechanism, then the light is transmitted to the first light splitting mechanism through the first wavefront corrector, the artificial beacon light beam is reflected by the first light splitting mechanism to enter the artificial beacon wavefront detector to detect the high-order aberration generated by the atmospheric turbulence in real time, and the wavefront controller controls the first wavefront corrector to realize the primary closed-loop correction of the system according to the signal obtained by detection.
The target light beam is transmitted to the first wavefront corrector through the first light splitting mechanism and then transmitted to the first light splitting mechanism, the target light is reflected by the light splitting mechanism and then focused through the focusing objective lens to enter the target performance detector for real-time detection of target performance, the optimization controller controls the second wavefront corrector through an optimization control algorithm according to set indexes to complete secondary closed-loop correction of the system, at the moment, residual errors after the previous-stage correction are mainly corrected, and target jitter caused by telescope vibration is received, so that the two-stage correction of the system is finally realized, the calibration precision is high, and the imaging quality of the system is greatly improved.
Preferably, the method comprises the following steps: the second beam splitting mechanism is a beam splitter, the optical system further comprises an imaging system, the imaging system comprises an imaging detector, and the imaging detector is located on a transmission light path of the second beam splitting mechanism. By adopting the scheme, when the target light is reflected to the second beam splitting mechanism through the second wavefront corrector, one part of the target light can be transmitted and directly enter the forming system for real-time imaging, and the other part of the target light can be reflected and then enters the target performance detector through the focusing objective lens for real-time detection of target performance.
Preferably, the method comprises the following steps: the imaging system further comprises a beam adjusting mechanism, and the beam adjusting mechanism is a beam shrinking lens or a beam expanding lens. By adopting the scheme, the diameter of the light beam transmitted by the second beam splitting mechanism can be matched with the same light aperture of the imaging detector, so that the imaging quality is improved.
In order to meet the observation requirements of different heights, the artificial beacon generated by the artificial beacon transmitting system is a sodium beacon or a Rayleigh beacon.
Preferably, the method comprises the following steps: the second wavefront corrector is a deformable mirror or a wavefront correction system consisting of a deformable mirror and a high-speed tilting mirror. By adopting the scheme, different correctors can be adopted to form the structure according to the needs so as to meet the requirements of simultaneously correcting the tilt phase difference and the high-order phase difference.
Preferably, the method comprises the following steps: the deformable mirror is a piezoelectric ceramic reflection type deformable mirror plated with a high reflection film, or a piezoelectric wafer deformable mirror, or a thin film deformable mirror, or a surface micro-mechanical deformable mirror and a liquid crystal device.
Preferably, the method comprises the following steps: the object performance detector characterizes optical system performance by obtaining an imaging performance function of an object, the imaging performance function having a unique maximum and a unique minimum. When the wavefront error correction is carried out by adopting the wavefront-sensor-free self-adaptive optical system, firstly disturbance is applied to the wavefront corrector, then the target performance detector obtains the change quantity of the imaging performance function of the target, the second wavefront corrector is controlled according to the change quantity, the imaging performance function of the target is changed towards the direction of an extreme value, and when the imaging performance function of the target reaches the extreme value, the wavefront error is considered to be corrected.
Preferably, the method comprises the following steps: the optimization controller adopts an SPGD optimization control method based on a Zernike mode. By adopting the scheme, the control precision and efficiency of the optimization controller are higher.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the self-adaptive optical system combining the artificial beacon and the wavefront-free detection, the self-adaptive detection under the condition of strong turbulence is realized, the requirement of the self-adaptive system on atmospheric conditions is reduced, the problem that the artificial beacon cannot accurately detect the inclination information is solved, the influence of a cone effect when the single artificial beacon carries out the wavefront detection is improved, the second-stage correction adopts a wavefront-free detection mode, the performance of a target is taken as a final index, the influence of residual aberration of the first-stage correction on imaging can be effectively corrected, the correction capability of the self-adaptive optical system is greatly improved, imaging close to a diffraction limit is obtained, the imaging quality of the system is favorably improved, the integral control is simple, the structure is compact, the realization is easy, and the application environment and the field of the self-adaptive optical system are favorably expanded.
Drawings
FIG. 1 is a schematic view of the principle of construction of the present invention;
FIG. 2 is a fragmentary schematic diagram of artificial beacon sampling;
FIG. 3 is a flow chart of the SPGD optimization control method.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
The application mainly provides an adaptive optical system combining an artificial beacon and wavefront-free detection, which mainly comprises an artificial beacon transmitting system 1, a receiving telescope 2, an artificial beacon optical compensation system 15 and a wavefront-free detection compensation system 16, wherein the artificial beacon transmitting system 1 comprises a laser, the artificial beacon transmitting system 1 is used for generating an artificial beacon, and the artificial beacon transmitting system 1 in the embodiment can be used for generating a sodium beacon or a rayleigh beacon.
The receiving telescope 2 is mainly used for receiving the artificial beacon light and the target light generated in the artificial beacon transmitting system 1 in high altitude, the artificial beacon light compensation system 15 comprises a first wavefront corrector 4, a first light splitting mechanism 5, an artificial beacon wavefront detector 6 and a wavefront controller 7, wherein the wavefront controller 7 is connected with the first wavefront corrector 4 and the artificial beacon wavefront detector 6 through electric signals, namely the wavefront controller 7 can receive detection result signals of the artificial beacon wavefront detector 6 and control and adjust the first wavefront corrector 4 through the received signals.
The first light splitting mechanism 5 is located on a reflected light path of the first wavefront corrector 4, the artificial beacon wavefront detector 6 is located on the reflected light path of the first light splitting mechanism 5, the beam reducing mechanism 3 is arranged between the first wavefront corrector 4 and the receiving telescope 2, the beam reducing mechanism 3 is a beam reducing lens, and the artificial beacon wavefront detector 6 is electrically connected with a laser, wherein the artificial beacon wavefront detector 6 can be a Hartmann shack wavefront sensor, a pyramid wavefront sensor, a curvature wavefront sensor and a shearing interference wavefront sensor.
The wavefront-free detection compensation system 16 comprises a second wavefront corrector 8, a second beam splitting mechanism 9, a focusing objective lens 10, a target performance detector 11 and an optimization controller 12, wherein the optimization controller 12 is in electrical signal connection with the second wavefront corrector 8 and the target performance detector 11, that is, the optimization controller 12 can receive a detection result signal sent by the target performance detector 11 and control and adjust the second wavefront corrector 8, the focusing objective lens 10 and the target performance detector 11 are sequentially arranged on a reflection light path of the second beam splitting mechanism 9, and the second wavefront corrector 8 is located on a transmission light path of the first beam splitting mechanism 5.
When the second beam splitting mechanism 9 is a beam splitter, the adaptive optical system of the present invention may also be a mirror, and when the second beam splitting mechanism 9 is a beam splitter, the adaptive optical system further includes an imaging system 17, as shown in fig. 1, the imaging system 17 is mainly composed of an imaging detector 14 and a beam adjusting mechanism 13, where the imaging detector 14 is located on a transmission light path of the second beam splitting mechanism 9 and is mainly used for implementing real-time imaging of target light, and the beam adjusting mechanism 13 is located between the imaging detector 14 and the second beam splitting mechanism 9 and is mainly used for performing beam expanding and beam contracting processing on a light beam transmitted by the second beam splitting mechanism 9 and focusing the light beam to match a beam diameter with a clear aperture of the imaging detector 14, so the beam adjusting mechanism 13 is usually a beam contracting lens or a beam expanding lens.
When the second spectroscope 9 is a reflector, the imaging system 17 is not needed, and the target performance detector 11 can replace the imaging detector 14 to perform real-time imaging, and the structure of the target performance detector is similar to that of the imaging detector 14, and only the evaluation index is set during subsequent processing, and the target performance detector is mainly used for collecting light spots and detecting the size, energy or focal spot peak power energy parameters of the light spots.
The first wave-front corrector 4 and the second wave-front corrector 8 are deformable mirrors or a correction system consisting of the deformable mirrors and a high-speed inclined mirror, can correct inclined phase differences and high-order phase differences, wherein the deformable mirrors can be piezoelectric ceramic reflection type deformable mirrors plated with high reflection films, or piezoelectric wafer deformable mirrors, or film deformable mirrors, or surface micro-mechanical deformable mirrors and liquid crystal devices, and the artificial beacon wave-front detector 6 in the application adopts a shack-Hartmann wave-front sensor.
The target performance detector 11 is used for obtaining an imaging performance function of the target to represent the performance of the optical system, and in an ideal case, the imaging performance function of the target has a unique maximum value or a unique minimum value.
The control method of the optimization controller 12 may be a modeless optimization control method or a pattern-based optimization control method; the model-free optimization control method can be a random parallel gradient Descent (SPGD) algorithm, a genetic algorithm and a simulated annealing algorithm, the algorithm directly controls a wavefront corrector to optimize an imaging performance function of a target until the function converges, the model-based optimization control method can be an optimization control method based on a Zernike model or an optimization control method based on a Lukosz-Zernike model, and the optimization control method based on the SPGD of the Zernike model is adopted in the application.
Referring to fig. 1 to 3, the correction principle of the present application is as follows: the 589nm laser emitted by the artificial beacon emitting system 1 forms an artificial sodium beacon in 90km high altitude, and the laser beam passes through the atmospheric turbulence in the upward transmission process, so that the position of the artificial sodium beacon is shifted, and the shift amount is calculated as follows:
wherein delta is the offset, aiZernike coefficients i 2, 3, D for the upward beam passing through the atmospheric turbulencelaunchH is the beacon height for transmitting the telescope aperture. Due to the change of offset caused by the change of atmospheric turbulence in the transmission process of the uplink light beam, the vibration of beacon light spots occurs, and the downlink overall inclination information cannot be accurately measured, so that the beacon cannot be used for correcting the downlink overall inclination information.
Light rays from the target and the artificial sodium beacon are received by the receiving telescope 2 at the same time, are changed into parallel light or nearly parallel light through the beam-shrinking mechanism 3, then the light beams are transmitted to the first light-splitting mechanism 5 through the first wavefront corrector 4, the artificial beacon light beams are reflected by the first light-splitting mechanism 5 to enter the artificial beacon wavefront detector 6, the artificial beacon wavefront detector 6 detects high-order aberrations except tilt generated by atmospheric turbulence in real time, and then the first wavefront corrector 4 is controlled to perform wavefront correction.
Because the artificial beacon wavefront sensor 6 adopts a dynamic shack-Hartmann wavefront sensor, the first wavefront corrector 4 adopts a deformable mirror, and the Hartmann is used for measuring the drift of the center of the spot of the distorted wavefront on each sub-aperture in the X direction and the Y direction, the average slope of the wavefront in each sub-aperture range in two directions can be obtained:
where f is the focal length of the microlens, IiIs the signal received by pixel i, Xi，YiIs the coordinate of the ith pixel, (Y)C，YC) Is the coordinate of the centroid of the light spot (G)X，GY) Is the wavefront slope within the sub-aperture and S is the sub-aperture area.
In order not to correct the overall tilt, the obtained wavefront slope of each sub-aperture is subtracted by the average of the wavefront slopes of each sub-aperture, that is:
after the sub-aperture slope data is obtained, the voltage applied to the first waveform corrector 4 can be obtained through a direct slope wavefront restoration algorithm, and an input signal V is setjIs a control voltage applied to the jth driver, thereby producing a wavefront slope magnitude in the sub-aperture of the hartmann sensor of:
i＝1,2,3,4,5……
wherein R isj(x, y) is an influence function of j-th driver of the first waveform corrector 4, t is the number of drivers, m is the number of sub-apertures, SiFor the normalized area of the sub-aperture i, when the control voltage is in a proper range, the phase correction amount of the first waveform corrector 4 and the driver voltage are linearly approximated, the slope amount of the sub-aperture and the driver voltage are linearly related, and both satisfy the superposition principle, and the above formula can be written in a matrix form:
G＝RxyV
Rxya matrix corresponding to the slope of the first waveform corrector 4 to the Hartmann sensor (artificial beacon wavefront sensor 6), measured experimentally; g is the wavefront phase difference slope measurement that needs to be corrected, so the control voltage can be obtained:
wherein the content of the first and second substances,
is RxyThe generalized inverse of (1). This determines the voltage to be applied to each driver of the first waveform corrector 4, and the first waveform corrector 4 is deformed accordingly, thereby achieving a first-order correction of the system.
When the target light is transmitted to the wavefront-free detection compensation system 16, wavefront-free detection correction is performed, and the optimization controller 12 in the wavefront-free detection compensation system 16 adopts an optimized SPGD control method based on a Zernike mode.
The SPGD optimization control method flow is as shown in fig. 3, and the correction objective function is set to the strehl ratio after target imaging:
I0(x0,y0) The peak intensity of the far-field light spot of an ideal wave surface, I (x)0,y0) The peak intensity of the far-field light spot of the distorted wavefront is obtained.
The method comprises the following specific steps:
a, initializing a gain coefficient gama and a random disturbance amplitude delta, setting iteration times itertornum when the initial state of a second wavefront corrector 8 (deformable mirror) is undeformed, initializing a counter, and entering a main loop;
b, during nth iteration, generating a kdelta _ zern vector which obeys Bernoulli distribution according to the amplitude delta, setting a second wavefront corrector 8 to generate a zern + kdelta _ zern deformation, and acquiring a Zett-column ratio JStlr + of an imaged performance index target after correction, wherein the vector dimension is a correction order;
similarly, the second wavefront corrector 8 generates a surface shape of zern-kdelta _ zern, and the shot image of the performance index target after correction is acquired with the Stokes ratio JSTlr-;
d calculating deltaJ, generating a surface shape zern-gama multiplied by deltaJ multiplied by kdelta _ zern of the second wavefront corrector 8 after the nth iteration, judging whether the iteration times are met or not by a counter +1, and if the iteration times are met, exiting, and if the iteration times are not met, performing the iteration process for n +1 times until the iteration times are met.
During the operation of the SPGD optimization control method, the second wavefront corrector 8 is required to generate a Zernike mode profile, which requires a relationship between the Zernike mode profile and the deformable mirror driver voltage to be established in advance. Measuring the influence function of the second wavefront corrector 8, calculating a coupling matrix between the influence functions according to the driver influence function, denoted Cv，CvFor symmetric reversible matrix, calculating the correlation matrix between the driver influence function and Zernike mode, and recording as Czv. The relationship between the Zernike coefficients and the drive vector of the second wavefront corrector 8 is derived as:
v＝Cv -1Czva
the voltage to be applied to each driver of the second wavefront corrector 8, i.e. the deformation of the second wavefront corrector 8 that produces the corresponding Zernike coefficients, is thus determined.
Through two-stage correction of the system, the problem that the single artificial beacon wave-front correction cannot accurately measure the downlink integral inclination information of the beacon is solved, the conical effect of the single artificial beacon wave-front correction is improved, the system correction capability of the system under the condition of strong turbulence is improved, in addition, because the wave-front detector 6 and the target performance detector 11 are adopted to respectively detect high-order aberration and low-order aberration, the SPGD algorithm is utilized to carry out optimization correction on the high-order aberration, the detection high-order aberration is not limited by the number limitation of Hartmann sub-apertures, the beacon brightness requirement is reduced, meanwhile, the target performance is used for correction for traction, the correction effect is better, and the imaging quality of the target is favorably and greatly improved.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (8)
1. An adaptive optics system combining artificial beacons with wavefront-less detection, characterized by: comprises an artificial beacon transmitting system (1), a receiving telescope (2), an artificial beacon light compensation system (15) and a wavefront-free detection compensation system (16), wherein the receiving telescope (2) is used for receiving target light and artificial beacon light generated by the artificial beacon transmitting system (1), the artificial beacon light compensation system (15) comprises a first wavefront corrector (4), a first beam splitting mechanism (5), an artificial beacon wavefront detector (6) and a wavefront controller (7), wherein the wave-front controller (7) is used for receiving the signal of the artificial beacon wave-front detector (6) and adjusting the first wave-front corrector (4), the first light splitting mechanism (5) is positioned on the reflected light path of the first wave-front corrector (4), the artificial beacon wave-front detector (6) is positioned on the reflected light path of the first light splitting mechanism (5), a beam-shrinking mechanism (3) is arranged between the first wavefront corrector (4) and the receiving telescope (2);
the wavefront-free detection compensation system (16) comprises a second wavefront corrector (8), a second beam splitting mechanism (9), a focusing objective lens (10), an object performance detector (11) and an optimization controller (12), wherein the optimization controller (12) is used for receiving signals of the target performance detector (11) and adjusting the second wavefront corrector (8), the focusing objective lens (10) and the target performance detector (11) are sequentially arranged on a reflection light path of the second beam splitting mechanism (9), the second wavefront corrector (8) is positioned on the transmission light path of the first light splitting mechanism (5), the target light beam is transmitted to the second wavefront corrector (8) through the first light splitting mechanism (5), then the light is transmitted to a second light splitting mechanism (9), and at least part of the target light is reflected by the second light splitting mechanism (9) and then focused by a focusing objective lens (10) to enter a target performance detector (11).
2. The adaptive optics system of an artificial beacon combined with wavefront-less detection of claim 1, wherein: the second light splitting mechanism (9) is a light splitter, the optical system further comprises an imaging system (17), the imaging system (17) comprises an imaging detector (14), and the imaging detector (14) is located on a transmission light path of the second light splitting mechanism (9).
3. The adaptive optics system of an artificial beacon combined with wavefront-less detection of claim 2, wherein: the imaging system (17) further comprises a beam adjusting mechanism (13), and the beam adjusting mechanism (13) is a beam shrinking lens or a beam expanding lens.
4. The adaptive optics system of an artificial beacon combined with wavefront-less detection of claim 1, wherein: the artificial beacon generated by the artificial beacon transmitting system (1) is a sodium beacon or a Rayleigh beacon.
5. The adaptive optics system of an artificial beacon in combination with wavefront-less detection according to any one of claims 1 to 4, wherein: the second wavefront corrector (8) is a deformable mirror or a wavefront correction system consisting of a deformable mirror and a high-speed tilting mirror.
6. The adaptive optics system of an artificial beacon combined with wavefront-less detection of claim 5, wherein: the deformable mirror is a piezoelectric ceramic reflection type deformable mirror plated with a high reflection film, or a piezoelectric wafer deformable mirror, or a thin film deformable mirror, or a surface micro-mechanical deformable mirror and a liquid crystal device.
7. The adaptive optics system of an artificial beacon combined with wavefront-less detection of claim 1, wherein: the object performance detector (11) characterizes optical system performance by obtaining an imaging performance function of an object, the imaging performance function having a unique maximum and a unique minimum.
8. The adaptive optics system of an artificial beacon in combination with wavefront-less detection according to claim 1 or 7, wherein: the optimization controller (12) adopts an SPGD optimization control method based on a Zernike mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911148452.3A CN110824697B (en) | 2019-11-21 | 2019-11-21 | Self-adaptive optical system combining artificial beacon and wavefront-free detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911148452.3A CN110824697B (en) | 2019-11-21 | 2019-11-21 | Self-adaptive optical system combining artificial beacon and wavefront-free detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110824697A true CN110824697A (en) | 2020-02-21 |
| CN110824697B CN110824697B (en) | 2021-07-13 |
Family
ID=69557688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911148452.3A Active CN110824697B (en) | 2019-11-21 | 2019-11-21 | Self-adaptive optical system combining artificial beacon and wavefront-free detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110824697B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580271A (en) * | 2020-06-24 | 2020-08-25 | 哈工大机器人(中山)无人装备与人工智能研究院 | Self-adaptive aberration correction method and light sheet microscopic imaging device based on same |
| CN111913189A (en) * | 2020-08-19 | 2020-11-10 | 深圳元戎启行科技有限公司 | Light emitting device and imaging device based on wavefront detection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030062468A1 (en) * | 2001-09-28 | 2003-04-03 | Byren Robert W. | System and method for effecting high-power beam control with adaptive optics in low power beam path |
| CN101694545A (en) * | 2009-10-27 | 2010-04-14 | 北京理工大学 | Wave-front correcting method and wave-front correcting system for improving image quality of expansion target image forming |
| CN104360478A (en) * | 2014-12-03 | 2015-02-18 | 中国科学院光电技术研究所 | Nested double-self-adaptive optical system |
| CN105607074A (en) * | 2015-12-31 | 2016-05-25 | 中国科学院光电技术研究所 | Pulse-laser-based beacon adaptive optical system |
| CN106443702A (en) * | 2016-08-31 | 2017-02-22 | 中国科学院光电技术研究所 | Rayleigh and sodium beacon combined detection adaptive optical system |
| CN110365404A (en) * | 2019-06-11 | 2019-10-22 | 西安理工大学 | No wavefront sensing Adaptable System and the method for improving convergence rate using the system |
-
2019
- 2019-11-21 CN CN201911148452.3A patent/CN110824697B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030062468A1 (en) * | 2001-09-28 | 2003-04-03 | Byren Robert W. | System and method for effecting high-power beam control with adaptive optics in low power beam path |
| CN101694545A (en) * | 2009-10-27 | 2010-04-14 | 北京理工大学 | Wave-front correcting method and wave-front correcting system for improving image quality of expansion target image forming |
| CN104360478A (en) * | 2014-12-03 | 2015-02-18 | 中国科学院光电技术研究所 | Nested double-self-adaptive optical system |
| CN105607074A (en) * | 2015-12-31 | 2016-05-25 | 中国科学院光电技术研究所 | Pulse-laser-based beacon adaptive optical system |
| CN106443702A (en) * | 2016-08-31 | 2017-02-22 | 中国科学院光电技术研究所 | Rayleigh and sodium beacon combined detection adaptive optical system |
| CN110365404A (en) * | 2019-06-11 | 2019-10-22 | 西安理工大学 | No wavefront sensing Adaptable System and the method for improving convergence rate using the system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580271A (en) * | 2020-06-24 | 2020-08-25 | 哈工大机器人(中山)无人装备与人工智能研究院 | Self-adaptive aberration correction method and light sheet microscopic imaging device based on same |
| CN111580271B (en) * | 2020-06-24 | 2022-02-18 | 哈工大机器人(中山)无人装备与人工智能研究院 | Self-adaptive aberration correction method and light sheet microscopic imaging device based on same |
| CN111913189A (en) * | 2020-08-19 | 2020-11-10 | 深圳元戎启行科技有限公司 | Light emitting device and imaging device based on wavefront detection |
| CN111913189B (en) * | 2020-08-19 | 2023-06-20 | 深圳元戎启行科技有限公司 | Light emitting device and imaging device based on wavefront detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110824697B (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109782408B (en) | Large-aperture telescope secondary mirror attitude in-situ adjustment method | |
| CN1664650B (en) | Double wave front calibrator self-adaptive optical system | |
| CN106371102B (en) | Inverse Synthetic Aperture Laser Radar receiving system based on adaptive optics | |
| CN1987547B (en) | Device for automatic correcting telescope astigmatic aberration using telescope second lens | |
| CN106324828B (en) | Liquid crystal-distorting lens hybrid self-adaption method of designing optical system | |
| CN105607074A (en) | Pulse-laser-based beacon adaptive optical system | |
| CN110824697B (en) | Self-adaptive optical system combining artificial beacon and wavefront-free detection | |
| CN108845415B (en) | Coarse common-phase adjustment method and detection system applied to splicing mirror | |
| CN108646406B (en) | Self-adaptive optical device based on pyramid wave-front sensor eigenmode control | |
| CN1971232B (en) | Hartmann wavefront sensor with active alignment function and detection method therefor | |
| Bokalo et al. | Stabilization of astronomic images using a controlled flat mirror | |
| CN108827596B (en) | Common-phase detection method and device applied to segmented splicing telescope | |
| CN110907950B (en) | Method for carrying out turbulence synchronous detection by using long pulse laser | |
| Tokovinin et al. | SAM sees the light | |
| CN111562022A (en) | Solar self-adaptive optical system for correcting strong turbulence | |
| CN116047748A (en) | Adaptive optical telescope wavefront control device based on variable resolution Hartmann | |
| WO2023173675A1 (en) | Jitter compensation device and method for high-precision pointing system | |
| CN106569325B (en) | Aberration-eliminating film telescopic system based on movable optical element | |
| CN111443480A (en) | Sodium guide star uplink laser light field pre-correction system | |
| CN109683312B (en) | Method for adjusting image transfer relationship of adaptive optical system | |
| CN113740037A (en) | Method for detecting wavefront error of large-aperture telescope | |
| US10378995B2 (en) | Wavefront testing system | |
| CN100573081C (en) | Hartmann wave front sensor and detection method thereof with passive type alignment function | |
| CN115128797B (en) | Adaptive optical system optimization calibration and control method | |
| CN114859551B (en) | Active aberration correction system and correction method for reflective dispersion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |