CN106706271A - Automatic detection and performance analysis optimization device and system for optical system - Google Patents
Automatic detection and performance analysis optimization device and system for optical system Download PDFInfo
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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Abstract
The invention discloses an automatic detection and performance analysis optimization device for an optical system. The device obtains the number of error points at the level of pixels in a mode of continuously changing images through image display equipment, cooperating with an image collector for collection and carrying out the processing of images, carries out the adjustment of a focusing system, the performance analysis, focusing light spot fitting and the evaluation of hot spot analysis, and finally obtains the optical system which accords with the expectation. The device and method improve the efficiency, and reduce the cost and risk. Because the image processing and analysis speed is high, the adjustment parameters of the whole optical system can be obtained in several seconds, and are used for guiding the manual or automatic adjustment equipment to carry out the adjustment, thereby greatly improving the adjustment efficiency, and reducing the adjustment cost and risks. Meanwhile, the device achieves the optical performance analysis and detection which accords with the reality. The device achieves the reverse performance optimization and improves the utilization efficiency.
Description
Technical field
A kind of automatic detection the present invention relates to image detection analysis technical field, more particularly to optical system is detected and property
Can analysis optimization device and method.
Background technology
In solar energy heat utilization field, such as slot type, tower, Fresnel and dish-style generates electricity, and is directed to various optics
The debugging and performance evaluation of eyeglass, a good optical frames can not only lift generating efficiency, can more improve the stabilization of generating
Property.
By taking dish-style as an example, in power field front end generally using the Stirling engine of 4 cylinders, stirling generator is to being heated
Part uniformity coefficient requirement is higher, if it is uneven to be heated, it may appear that the situation of the relative dragging of cylinder, significantly drags down generating effect
Rate.And the side effect that the reduction of efficiency brings cannot in time be converted and conducted away for aggregation heat, cause heat to be assembled, cause office
Portion overheats, and directly affects engine life.
Carry out performance detection, analysis and the assessment of optical system without relatively good method in the world at present.
In dish-style optically focused field, more by the way of a kind of blind tune, i.e., it is adjusted against the sun, focuses on each
Hot spot enter into convergent hole；Commonly do not detect that the major defect of blind tune includes：Due to not knowing adjustment amount, fully belong to estimate
Adjustment state, cause adjustment time long, efficiency is low, and Adjustment effect and quality cannot be assessed.Typically there are personnel in steel simultaneously
It is adjusted on the support body of structure, with larger potential safety hazard.Adjustment effect only relies on naked-eye observation, and quality cannot ensure.Such as
Fruit causes hot-spot, is likely to result in heat dump and the serious consequence such as burns, and there is potential safety hazard.
Individual businesses employ the method that some are based on laser or light beam, refer to patent《Based on butterfly solar energy optical-thermal
The detection means and detection method of system mirror》, the adjustment of system may be can be used in the case that effect is good, it is impossible to realize
System optics performance evaluation.The method adjusted using laser or light beam, can save adjustment time in theory, reach relatively good
Adjustment effect.Its main shortcoming：First, the condenser area of reality is big, and error skewness, described with several points
Its adjustment angle is likely to cause the deviation of error, so as to cause to adjust Quality Down；Second, the method is counted due to calculating
It is few, it is impossible to fit and meet actual optical performance parameter, it is impossible to provide optical analysis in theory.
In this case, more enterprises are connect using receiving terminal using heat conduction and the more preferable material of heat resistance, expansion
The area of receipts, accelerate to import the mode problems unstable to solve condenser performance such as the mobility of medium, due to cannot be basic again
On carry out the solution of problem, changed more preferable material, while directly contributing the raising of cost, cannot also guarantee thoroughly
Solve；Other enlarged-area and quickening mobility mode, reduce the collecting temperature at heat absorption gas end, directly contribute the drop of efficiency
It is low, in the case where the current cost of new energy field is difficult to reduce, increased its difficulty for advancing.
The content of the invention
The problem to be solved in the present invention, is exactly to propose that one kind is practicable, for the optical property of common condenser system
Detection, adjustment and analysis, the adjusting parameter of condenser system can be not only given using the solution of the present invention within the short several seconds, used
In indirect labor or the system call interception of automatic adjustment equipment.Simultaneously can also be by hundreds thousand of points minute in specific system
Analysis, it can be deduced that meet actual optical performance parameter.In addition after optical performance parameter is drawn, reverse tune can also be carried out
Whole optimization, reaches best Adjustment effect.
In order to achieve the above object, the invention provides the automatic detection detection and performance evaluation optimization of a kind of optical system
Equipment, image acquisition device and image display are placed in condenser system front end, and industrial computer shows with image acquisition device and image
Device data is connected.Image acquisition device just to being tested condenser system, gathers the image of condenser system；From the angle of image acquisition device
See, the image reflected on the speculum of condenser system is in image display；Image acquisition device is placed with image display
In the position of condenser system two focus length, image acquisition device is with image display screen against condenser system；And utilization should
Image carries out image processing and analysis.
Preferably, described image collector can tune to other positions with image display, or by lens, speculum
The adjustment of light channel structure is carried out, the purpose of the picture observed on speculum by image acquisition device is reached.
Preferably, described image collector is industrial camera, camera or ordinary video collector；Described image shows and sets
Standby is flat panel TV, optical projection system, LED display or array lamp bead display screen.
Preferably, there are three adjustment bolts at each eyeglass back of the condenser system, for fixing len at rear portion
Supporting construction on, while adjust back bolt angle when, fix one of those, by adjust two other bolts come
Change its angle.
Preferably, described image display device is more than 55 cun.
Automatic detection detection and performance point invention additionally provides a kind of optical system using above-mentioned special equipment
Analysis optimization method, by the continuous changing image of image display and coordinates image acquisition device to gather, and image is processed
Mode draws the error points of pixel count magnitude, and adjustment, performance evaluation, the focal beam spot of condenser system are carried out using the error
Fitting, the evaluation of hot spot analysis, finally give and meet expected optical system.
The method is comprised the following steps：
Step 100 IMAQ：Industrial computer controls image display display output, control figure while output image
As collector carries out IMAQ.
Step 200 is analyzed and calculates eyeglass adjustment amount, including following sub-step：Step 210 calculates the normal of condenser system：
The method of use finds out the equation of incident ray and reflected ray by graphical analysis, and the side of normal is obtained using incident ray and reflected ray
Formula；Step 220 calculates the error and mean deviation angle of each eyeglass using image segmentation, and main process is as follows：Each picture of correspondence
The preferable normal of vegetarian refreshments can obtain theoretical normal angle by way of the surface equation differential to condenser system is differentiated；
Subtracted each other with ideal data using the data for calculating, obtain the error distribution of condenser system；Step 230 calculates mirror by geometrical relationship
The adjustment amount of piece, calculates the rotation amount of adjustment bolt (2)：The mean error angle of each eyeglass drawn by step 220,
Using the angle as error transfer factor amount, the adjustment distance of two bolts to be adjusted is calculated using geometry rotation relationship, and
The adjustment distance is converted into rotating cycle by flight pitch, is easy to directly adjustment.
Preferably, step 210 detailed process is as follows：Correspondence and the location of pixels of image, can directly obtain in figure
As the location of pixels of acquisition chip in collector, and because the image acquisition device parameter and placement location of detecting system are fixed and
For, it is known that easily trying to achieve locus of the correspondence image pixel on acquisition chip using these conditions, the position is incidence
The starting point of line；Any image acquisition device has an optical center simultaneously, and any light for inciding collector all must be through
Guo Gai centers, and the position at the center is also known conditions as the parameter of collector, the incident ray of such respective pixel passes through
The two points can determine.Show that each puts the location of pixels for corresponding to flat panel TV on the image of first step collection, with reference to figure
Position and resolution parameter as display device, can obtain the corresponding locus of the location of pixels, and the locus is also
The final position of the pixel reflected ray；And the starting point of reflected ray needs to determine by the intersection point of incident ray and condenser system,
In this example respective pixel incident ray it has been determined that and condenser system be hyperbolic-parabolic, the face type equation is, it is known that be reduced to sky
Between straight line and paraboloidal intersection point, try to achieve intersection point and finally determine reflected ray equation.Incident ray and reflected ray determination, respective pixel
Normal is to determine, respective pixel space normal is obtained by angular bisector method.Can be tried to achieve and picture pixels by the method
The suitable distribution of the normal on whole condenser system.
Preferably, further include the adjustment of step 300 eyeglass and confirm：The rotation parameter of adjustment bolt is obtained, directly
Rotated according to the numerical value；If the eyeglass average angle of detection need not adjust in this scope；If average angle
It is super to go beyond the scope, then rotate adjustment bolt with the number of turns by the direction for obtaining.
Preferably, step 400 performance evaluation is further included：Step 410 calculate condenser system normal be distributed and split to
Eyeglass；Step 420 carries out light fitting and optically focused analysis：The Monte Carlo light of simulated solar light is made, and by the light
Intersect with each pixel, using the normal numerical computations reflection light for drawing before, while calculating reflection light and heat dump
Intersection point；Focal beam spot is fitted after calculating whole intersection points；Optically focused hot spot is irradiated on heat dump, and heat dump is in itself according to knot
The heat conduction situation that structure is different, material difference is caused is also entirely different；The relevant parameter of heat dump is added herein, can be true by material
Determine thermal conductivity factor, the distribution map of optically focused hot spot can be converted into heat using heat transfer formula is distributed；System optimization is mainly examined
Consider the situation and heat balance degree of hot spot in heat distribution, sentenced by setting the offline specification of upper limit specification equilibrium degree of hot spot
Determine whether system meets requirement, when the numerical value outside the heat distribution for calculating reaches specification, system is that prompting needs optimization.
Preferably, the method for above-mentioned optimization optimizes the heat distribution of each eyeglass in region for needed for calculating respectively, with specification
Threshold value is compared, if it exceeds the upper limit or less than lower limit, then judge that needs are readjusted or changed.
Preferably, further include that step 500 judges defective products, the method for each eyeglass has been drawn when focal beam spot is calculated
Line angular distribution and average, it is defective products to set average scope such as beyond 1 ° of eyeglass, and it is changed.
Beneficial effect：(1) efficiency, reduces cost and risk are improved：Because image processing and analyzing speed is fast, in several seconds i.e.
The adjusting parameter of whole condenser system is can obtain, for instructing artificial or automation adjusting device to be adjusted, tune is greatly improved
Whole efficiency, reduces the cost and risk of adjustment.
(2) realize meeting actual Optical Properties with detection：Because IMAQ point is more, according to the big of optical system
It is small to select hundreds thousand of industrial cameras to tens million of pixels, and each accurate measurement put is realized, equivalent to analysis extremely
Few hundreds of thousands focal point.Using these focal point combination Monte Carlo ray theories and geometric optics knowledge, it is possible to achieve complete
The actual Optical Properties of full laminating and evaluation.
(3) realize reverse performance optimization, improve utilization ratio：After optical property is analyzed, situation that may be actual is simultaneously
The requirement of optimal spot is not met, calculating can be reversed by parser, it is such as indivedual by mistake by new adjustment or replacing
The larger light-collecting lens of difference, the optimization for carrying out performance improves.
Brief description of the drawings
The condenser system structure chart that Fig. 1 is constituted for 12 optical mirror slips of the embodiment of the present invention.
Fig. 2 optimizes unit construction principle for the automatic detection detection of the optical system of the embodiment of the present invention with performance evaluation
Figure.
Fig. 3 optimizes the software analysis of equipment for the automatic detection detection of the optical system of the embodiment of the present invention with performance evaluation
And calculate eyeglass adjustment amount flow chart.
Fig. 4 optimizes the confirmation optically focused of equipment for the automatic detection detection of the optical system of the embodiment of the present invention with performance evaluation
The optical performance parameter flow chart of system.
Accompanying drawing is identified：1st, condenser system；2nd, adjustment bolt (at condenser system back, for adjusting lens angle)；3、
Image acquisition device；4th, image display；5th, industrial computer.
Specific embodiment
For make present invention solves the technical problem that, the technical scheme that uses and the technique effect that reaches it is clearer, below
The present invention is described in further detail in conjunction with the accompanying drawings and embodiments.It is understood that specific implementation described herein
Example is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of description, accompanying drawing
In illustrate only part rather than full content related to the present invention.
First, structure and principle
Fig. 1 and Fig. 2 is refer to, the automatic detection detection of the optical system of the present embodiment is hard with performance evaluation optimization equipment
Part structure is：Image acquisition device 3 is placed with (this of image display 4 in the front end of condenser system 1 of 12 optical mirror slip compositions
Embodiment is flat panel TV), and be equipped with industrial computer 5 and be connected with the two, in test by the continuous changing image of flat panel TV simultaneously
Coordinate image acquisition device 3 to gather, the error points of pixel count magnitude, and profit are drawn by way of software is processed image
The evaluation such as adjustment, performance evaluation, focal beam spot fitting, hot spot analysis of condenser system 1 is carried out with the error, is finally given and is met
Expected optical system.
Image acquisition device 3 is usually industrial camera, camera, ordinary video collector etc.；Image display can be used
Flat panel TV, optical projection system, LED display, array lamp bead display screen etc..
Image acquisition device 3 just to being tested condenser system, gathers the image of condenser system.Condenser system is usually optical frames
Piece, from from the point of view of image acquisition device 3, just at the center of flat panel TV on the picture theory reflected on speculum.Assuming that poly-
The focal length of photosystem is f, in order to reach the effect above, it is necessary to image acquisition device and flat panel TV are placed on into 2 times of focal lengths obtains position
Put, image acquisition device is with plate TV screen against condenser system.Can also adjust to other positions, or by lens, anti-
Penetrating mirror carries out the adjustment of light channel structure, reaches the picture observed on speculum by image acquisition device 3, and carry out figure using the image
As treatment and analysis mode.
2nd, embodiment
Using traditional disc type condensation system, flat panel TV as illustrating as a example by display device：12 optical mirror slips
Between it is separate, there are three adjustment bolts 2 at each eyeglass back, for fixing len rear portion supporting construction, together
When adjust back bolt angle when, fix one of those, its angle can be changed by adjusting two other bolts.It is flat
Plate TV is both placed on the axis of condenser system 1 about two focus length position with image acquisition device 3, just to condenser system 1.Flat board electricity
Size depending on 4 may be selected large-size according to the diameter and error of condenser system, and such as 55 cun or more (from image during due to measurement
Collector observes the image of the TV of condenser system reflection, if television sizes are smaller, condenser system error easily goes out when big
Existing condenser system does not reflex to the picture on TV, causes situation about cannot measure), the visual field of image acquisition device 3 can just include
Whole optical mirror slips, the two is connected using industrial computer 5.
After image acquisition device 3 and flat panel TV are fixed, adjustment and evaluation and test work are broadly divided into following several steps：
The first step, IMAQ：
The process is mainly the display output that flat panel TV is controlled by industrial computer, controls image to adopt while output image
Storage carries out IMAQ.
By taking the detection mode of the striped phase shift method for using as an example, industrial computer control flat panel TV shows two sides of transverse and longitudinal respectively
90 ° of 8 width images are differed to, phase, control image acquisition device gathers the condenser system on opposite while showing each width, due to
What condenser system reflected is the image of flat panel TV, therefore can collect the 8 width streaky condenser system image of reflection.It is wherein horizontal
To the width of stripe pattern 4, phase is respectively 0 °, 90 °, 180 °, 270 °, the width of image 4 of longitudinal stripe, phase be respectively 0 °, 90 °,
180°、270°。
Second step, analyze and calculate eyeglass adjustment amount：
After picture is collected, network analysis is carried out, flow chart is as shown in Figure 3.
Need herein with reference to accompanying drawing, the network analysis to the step is described in detail, if being related to formula, public affairs please be provide
Formula
The normal of condenser system is calculated first：The method of use finds out the side of incident ray and reflected ray by graphical analysis
Journey, the mode of normal is obtained using incident ray and reflected ray, and main process is as follows：
Correspondence and the location of pixels of image, can directly obtain the location of pixels of the acquisition chip in image acquisition device, and
Due to the image acquisition device parameter and placement location of detecting system are fixed and be, it is known that easily tried to achieve using these conditions it is right
Locus of the image pixel on acquisition chip is answered, the position is the starting point of incident ray.Any image acquisition device has simultaneously
One optical center, any light for inciding collector all has to pass through the center, and the position at the center is used as collection
The parameter of device is also known conditions, and the incident ray of such respective pixel is put by the two and can determined.
In the 8 spoke print images that the first step is obtained, easily show that each point corresponds to flat board electricity on image using phase shift method
Depending on location of pixels, position and resolution parameter with reference to flat panel TV can obtain the corresponding locus of the location of pixels,
The locus is also the final position of the pixel reflected ray.And the starting point of reflected ray is needed by incident ray and condenser system
Intersection point determine, in this example the incident ray of respective pixel it has been determined that and condenser system be hyperbolic-parabolic, the face type equation
, it is known that being reduced to space line and paraboloidal intersection point, try to achieve intersection point and finally determine reflected ray equation.
Incident ray determines that the normal of respective pixel is to determine, correspondence is easily obtained by angular bisector method with reflected ray
Pixel space normal.
The normal on whole condenser system suitable with picture pixels can be tried to achieve by the method to be distributed.
Secondly the error and mean deviation angle of each eyeglass are calculated using image segmentation, main process is as follows：
After the distribution of condenser system normal is obtained, in order to obtain error distribution, it is necessary to carry out the perfect error of condenser system
The calculating of data simultaneously does difference.What the preferable normal of each pixel of correspondence was differentiated by the surface equation differential to condenser system
Mode, can obtain theoretical normal angle.Subtracted each other with ideal data using the data for calculating, obtain the error point of condenser system
Cloth.
Because condenser system is made up of 12 eyeglasses, and condenser system is regarded a complete song by calculating before all the time
Face mirror is calculated, and next starts to be divided into the data of the system on each eyeglass.System each eyeglass has the space of oneself
Position coordinates scope, by taking the eyeglass of surface as an example, the coverage of the eyeglass is -15 °~+15 ° of condenser system overcentre
Scope.The data as the eyeglass of this angular range are met on the condenser system that will be calculated before, method on the eyeglass is calculated
The average angle of line, as the error angle of the eyeglass.Other each eyeglasses are similarly calculated, the average angle of each eyeglass is obtained
Degree.
The adjustment amount of eyeglass is calculated finally by geometrical relationship, the rotation amount of bolt is calculated：
Because eyeglass rigidly fixes connection using three bolts, when angle adjustment is carried out, generally using fixing one, adjust
Whole two other mode, realizes the adjustment of gamut misalignment angle.Before having drawn the mean error angle of each eyeglass,
Using the angle as error transfer factor amount, the adjustment distance of two bolts to be adjusted is calculated using geometry rotation relationship.And
The adjustment distance is converted into rotating cycle by flight pitch, is easy to directly adjustment.
3rd step, eyeglass adjustment and confirmation：
The angle adjustment of eyeglass can use artificial mode, due to having obtained the rotation parameter of adjustment bolt, directly press
According to numerical value rotation.Assuming that the eyeglass average angle of target be -1 °~+1 ° between, if detection eyeglass average angle
In this scope, i.e., need not adjust.If average angle is super gone beyond the scope, the direction calculated by software rotates with the number of turns
Adjustment bolt.
The part also can be by the way of adjust automatically, and need to only be installed in adjustment bolt can be controlled the automatic of rotation
Rotation adjuster, the rotating cycle control adjustment bolt provided according to software rotates and locks.
Need to be detected confirmation again after the completion of adjustment, until each eyeglass actual error angle all meets -1 °~+1 °
Adjustment specification.
4th step, performance evaluation：
, it is necessary to confirm the optical performance parameter of condenser system after the completion of adjustment, realized also by software, the institute of flow chart 4
Show.
The process first half is similar with eyeglass adjustment, and rear semiosis is simulated light and carries out optical system fitting by software
Mode, realize, to the evaluation of optical system and analysis, mainly including：
Employ first and adjust identical method with eyeglass, 8 pictures of collection, calculating condenser system normal are distributed and split
To 12 eyeglasses.Due to average angle angle value is adjusted to specification.
Next carries out light fitting and optically focused analysis：Because condenser system is in normal use, just to the sun and converging light
Line to system front end heat dump, this sentence heat dump be condenser system front end plane as a example by.Make simulated solar light
Monte Carlo light, and the light is intersected with each pixel, using the normal numerical computations reflection light for drawing before, together
When calculate the intersection point of reflection light and heat dump.Focal beam spot is fitted after calculating whole intersection points.
Because optically focused hot spot is irradiated on heat dump, the heat conduction that heat dump is caused according to structure difference, material difference in itself
Situation is also entirely different.The relevant parameter of heat dump is added herein, due to being plate heat dump in this example, can be true by material
Determine thermal conductivity factor, the distribution map of optically focused hot spot can be converted into heat using heat transfer formula is distributed.
System optimization mainly considers the situation and heat balance degree of hot spot in heat distribution.Can be by setting the upper of hot spot
The offline specification of limit gauge lattice equilibrium degree comes whether decision-making system meets requirement, such as can set the upper limit specification of 200W/ ㎡, with
And the lower limit specification of 50W/ ㎡, when the numerical value outside the heat distribution for calculating reaches two specifications, system is that prompting needs are excellent
Change.
The method of optimization：By taking the hot spot that certain region occurs more than 200W/ ㎡ as an example, 12 pieces of eyeglasses are calculated in the region
Heat is distributed, itself and should be 200, it is assumed that numerical value is【13,17,11,16,29,15,12,35,20,13,12,10】, can set
There is hot spot in eyeglass list product during more than 25, by numerical value see obvious 5th and the 8th it is undesirable, it is necessary to readjust
Or change.
Occurring that when heat distribution is low similar method can be taken, detected and judged.
5th step, according to above-mentioned software analysis situation, the normal angle of each eyeglass has been drawn when focal beam spot is calculated
Distribution and average, it is defective products that can set average scope such as beyond 1 ° of eyeglass, and it is changed.
6th step, by said system detect hot spot be distributed, calorimetric analysis it is qualified after, i.e., the adjustment of completion system with inspection
Survey.
Using which, due to make use of the mode of IMAQ combination striped phase shift method, it can be deduced that with image pixel
Number identical detection data, as a example by using 2,000,000 pixel cameras, even if by visual field and detect it is in irregular shape influence, only
There is 50% utilization rate, still can reach 1,000,000 points, divide equally and counted on each eyeglass more than 80,000.Using 80,000
Point fits the spotlight effect for coming can completely embody the actual effect of reflecting optics substantially.
Be more than the detection and analysis to common disk system, the method be equally applicable photo-thermal field slot type,
On tower and Fresnel, for detecting single parabola, micro- curved surface etc., in actual application process, the form meeting of the equipment
It is varied from according to specific circumstances.
In slot type field, because slot type length is more long, it is necessary to subregion measures step by step, 10 meters of slot types long are such as measured,
Equipment detection is limited by flat panel TV length, and 1.5 meters or so can only be detected every time, it is necessary to point 7 times or 8 times measurements.
In micro- curved surface or the detection field of plane mirror, the equipment can generally detect 1 half-size scale of flat panel TV length,
Therefore it is also required to subregion detection or is carried out using the bigger projector equipment of area.
Key problem in technology point of the invention is to place image acquisition device and display device by condenser system front end, is utilized
The display device image reflected in image acquisition device collection mirror, analyzes each point normal and error of respective pixel, so that
Instruct system to focus and system optimization, and provide the important indicators such as comprehensive condenser system spotlight effect and heat distribution.
The present invention proposes a kind of brand-new adjustment and evaluation and test mode for condenser system, can be with efficient by the equipment
Condenser system is adjusted and is optimized, and be given comprehensively and meet actual optical analysis report, and proof theory is designed, and is improved
Systematic difference efficiency.
The present invention can be applied on the condenser system using speculum, can equally be well applied to the inspection of any carrying speculum
The condenser system in survey field, such as light, can in the same way detect and verify the spotlight effect of reality.For another example automobile
Rearview mirror effect detection, it would however also be possible to employ which is detected and analyzed.This equally should be comprising in the present invention.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its is right
Technical scheme described in foregoing embodiments is modified, or which part or all technical characteristic are equally replaced
Change, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. the automatic detection detection of a kind of optical system optimizes equipment with performance evaluation, it is characterised in that before condenser system (1)
Place image acquisition device (3) and image display (4), industrial computer (5) and image acquisition device (3) and image display in end
(4) data cube computation；
Image acquisition device (3) is just to being tested condenser system (1), the image of collection condenser system (1)；From image acquisition device (3)
Angle sees that the image reflected on the speculum of condenser system (1) is in image display (4)；Image acquisition device (2) and image
Display device (4) is placed on the position of condenser system (1) two focus length, image acquisition device (2) and image display (4) screen
Against condenser system (1)；And carry out image processing and analysis using the image.
2. the automatic detection detection of a kind of optical system according to claim 1 optimizes equipment, its feature with performance evaluation
It is that described image collector (2) can tune to other positions with image display (4), or be carried out by lens, speculum
The adjustment of light channel structure, reaches the purpose of the picture observed on eyeglass by image acquisition device (3).
3. the automatic detection detection of a kind of optical system according to claim 1 optimizes equipment, its feature with performance evaluation
Be that described image collector (3) is industrial camera, camera or ordinary video collector；Described image display device (4) is
Flat panel TV, optical projection system, LED display or array lamp bead display screen.
4. the automatic detection detection of a kind of optical system according to claim 1 optimizes equipment, its feature with performance evaluation
Be that each eyeglass back of the condenser system (1) has three adjustment bolts (2), for fixing len rear portion branch
On support structure, while when back bolt angle is adjusted, fixing one of those, changed by adjusting two other bolts
Its angle.
5. the automatic detection detection of a kind of optical system according to claim 1 optimizes equipment, its feature with performance evaluation
It is that described image display device (4) is more than 55 cun.
6. a kind of automatic detection of optical system is detected and performance evaluation optimization method, it is characterised in that is shown by image and set
Standby (4) continuous changing image simultaneously coordinates image acquisition device (3) to gather, and the mode processed image draws pixel count magnitude
Error is counted, and is carried out the adjustment of condenser system (1), performance evaluation, focal beam spot fitting, hot spot analysis using the error and commented
Valency, finally gives and meets expected optical system；Comprise the following steps：
Step 100 IMAQ：Industrial computer (5) controls image display (4) display output, is controlled while output image
Image acquisition device (3) carries out IMAQ；
Step 200 is analyzed and calculates eyeglass adjustment amount, including following sub-step：
Step 210 calculates the normal of condenser system：The method of use finds out the equation of incident ray and reflected ray by graphical analysis,
The mode of normal is obtained using incident ray and reflected ray；
Step 220 calculates the error and mean deviation angle of each eyeglass using image segmentation, and main process is as follows：Each picture of correspondence
The preferable normal of vegetarian refreshments can obtain theoretical normal angle by way of the surface equation differential to condenser system is differentiated；
Subtracted each other with ideal data using the data for calculating, obtain the error distribution of condenser system；
Step 230 calculates the adjustment amount of eyeglass by geometrical relationship, calculates the rotation amount of adjustment bolt (2)：By step 220
The mean error angle of each eyeglass for drawing, using the angle as error transfer factor amount, calculates using geometry rotation relationship
The adjustment distance of two bolts to be adjusted, and the adjustment distance is converted into rotating cycle by flight pitch, is easy to directly
Adjustment.
7. a kind of automatic detection of optical system according to claim 6 is detected and performance evaluation optimization method, its feature
It is that step 210 detailed process is as follows：Correspondence and the location of pixels of image, can directly obtain in image acquisition device
The location of pixels of acquisition chip, and because the image acquisition device parameter and placement location of detecting system are fixed and be, it is known that profit
Locus of the correspondence image pixel on acquisition chip is easily tried to achieve with these conditions, the position is the starting point of incident ray；
Any image acquisition device has an optical center simultaneously, and any light for inciding collector all has to pass through the center,
And the position at the center is also known conditions as the parameter of collector, the incident ray of such respective pixel is put by the two can
To determine；
Show that each puts the location of pixels for corresponding to flat panel TV on the image of first step collection, with reference to the position of image display
Put and resolution parameter, the corresponding locus of the location of pixels can be obtained, the locus is also the pixel reflected ray
Final position；And the starting point of reflected ray needs to determine by the intersection point of incident ray and condenser system, respective pixel in this example
Incident ray it has been determined that and condenser system be hyperbolic-parabolic, the face type equation is, it is known that be reduced to space line and parabola
Intersection point, try to achieve intersection point and finally determine reflected ray equation；
Incident ray determines that the normal of respective pixel is to determine, respective pixel space is obtained by angular bisector method with reflected ray
Normal；
The normal on whole condenser system suitable with picture pixels can be tried to achieve by the method to be distributed.
8. a kind of automatic detection of the optical system according to claim 6 or 7 is detected and performance evaluation optimization method, its spy
Levy and be, further include step 400 performance evaluation：
Step 410 calculates condenser system normal and is distributed and splits to eyeglass；
Step 420 carries out light fitting and optically focused analysis：Make simulated solar light Monte Carlo light, and by the light with
Each pixel intersects, using the normal numerical computations reflection light for drawing before, while calculating reflection light with heat dump
Intersection point；Focal beam spot is fitted after calculating whole intersection points；
Optically focused hot spot is irradiated on heat dump, and the heat conduction situation that heat dump is caused according to structure difference, material difference in itself is also complete
It is complete different；The relevant parameter of heat dump is added herein, thermal conductivity factor can determine that by material, can be gathered using heat transfer formula
The distribution map of light hot spot is converted into heat distribution；
System optimization mainly considers the situation and heat balance degree of hot spot in heat distribution, equal by the upper limit specification for setting hot spot
The offline specification of weighing apparatus degree comes whether decision-making system meets requirement, when the numerical value outside the heat distribution for calculating reaches specification, is
System is that prompting needs optimization.
9. a kind of automatic detection of optical system according to claim 8 is detected and performance evaluation optimization method, its feature
It is that the method for optimization optimizes the heat distribution of each eyeglass in region for needed for calculating respectively, is compared with specification threshold value, if super
Cross the upper limit or less than lower limit, then judge that needs are readjusted or changed.
10. a kind of optical system according to claim 6 or 7 automatic detection detection with performance evaluation optimization method, its
It is characterised by, further includes that step 500 judges defective products, the normal angle of each eyeglass has been drawn when focal beam spot is calculated
Distribution and average, it is defective products to set average scope such as beyond 1 ° of eyeglass, and it is changed.
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