CN118329085B - Computing optical acquisition test system - Google Patents
Computing optical acquisition test system Download PDFInfo
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- CN118329085B CN118329085B CN202410769116.5A CN202410769116A CN118329085B CN 118329085 B CN118329085 B CN 118329085B CN 202410769116 A CN202410769116 A CN 202410769116A CN 118329085 B CN118329085 B CN 118329085B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
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Abstract
The invention belongs to the technical field of optical testing, and particularly relates to a computing optical acquisition testing system, which comprises a light source device, a light guide device and a device to be tested; the light source device comprises a displacement adjusting part, a rotating disc, a target body and a light source body; the target body is connected to the rotating disc; the displacement adjusting component is movably connected with the rotating disc so as to adjust the distance between the target body and the light source body; the target body is arranged on the path of the illumination light of the light source body; the light guiding device comprises a reflector group; the reflection lens group is arranged on the path of the illumination rays of the target body; the device to be tested comprises a turntable component, an area array detector and a lens to be tested; the lens to be tested is connected to the turntable component and is arranged on the path of the reflected light of the reflection lens group; the area array detector is arranged on the path of the refracted light of the lens to be detected. The invention can improve the accuracy and the rapidity of the test so as to adapt to more different performance tests.
Description
Technical Field
The invention belongs to the technical field of optical testing, and particularly relates to a computing optical acquisition testing system.
Background
The light conveys information via data. For example, when light interacts with an object, information about the physical, chemical properties of the object is carried away. The properties of the light, such as density, can be measured and analyzed to obtain information about the object with which it interacts. That is, the data carried by the light through its density can be measured to derive information about the object. Similarly, in optical communication systems, optical data is processed and information is transmitted over optical transmission media such as fiber optic cables. After receiving the optical signal, the data is measured to derive information.
However, the existing calculation optical acquisition test system can only execute a single type of data test, has poor test accuracy, and cannot meet daily requirements.
Disclosure of Invention
The invention aims at: aiming at the defects of the prior art, the computing optical acquisition test system is provided, and any technical problem can be solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A calculation optical acquisition test system comprises a light source device, a light guide device and a device to be tested; the light source device comprises a displacement adjusting part, a rotating disc, a target body and a light source body; the target body is connected to the rotating disc; the displacement adjusting component is movably connected with the rotating disc so as to adjust the distance between the target body and the light source body; the target body is arranged on the path of illumination rays of the light source body; the light guiding device comprises a reflecting lens group; the reflection lens group is arranged on the path of the illumination rays of the target body; the device to be tested comprises a turntable component, an area array detector and a lens to be tested; the lens to be tested is connected to the turntable component, and is arranged on the path of the reflected light rays of the reflection lens group; the area array detector is arranged on the path of the refracted light of the lens to be tested.
Preferably: the displacement adjustment component comprises a first guide rail component and a second guide rail component; the mounting end of the bottom of the first guide rail component is connected with the first bracket; the movable end of the first guide rail component and the target body; the mounting end of the bottom of the second guide rail component is connected with the first bracket; the movable end of the second guide rail component is connected with the target body.
Preferably: the first guide rail component comprises a first guide rod, a first sliding block and a dial indicator; the first guide rod is connected to the first bracket; the inner part of the first sliding block is connected with the outer surface of the first guide rod in a sliding way; the top of the first sliding block is connected with the target body; the dial indicator is connected to the first bracket; and the contact head of the dial indicator is connected with the first sliding block.
Preferably: the second guide rail component comprises a fixed guide rail and a second sliding block; the fixed guide rail is connected to the first bracket; the bottom of the second sliding block is connected with the top of the fixed guide rail in a sliding way; the second sliding block is connected to the target body.
Preferably: the target body comprises a star point plate and a third bracket; the star point plate is detachably connected to the inside of the rotating disc; the rotating disc is movably connected to the inside of the third bracket; the third bracket is connected to the displacement adjustment member.
Preferably: the reflector plate group comprises a first reflector and a second reflector; the first reflector is arranged on the path of illumination rays of the target body; the first reflecting mirror and the illumination direction of the target body are obliquely arranged; the second reflector is arranged on the path of the reflected light of the first reflector; the lens to be tested is arranged on the path of the reflected light of the second reflector.
Preferably: the light guiding device further comprises a lens and a second bracket; the first reflecting mirror and the second reflecting mirror are respectively connected to the second bracket; the lens is arranged between the second reflecting mirror and the lens to be tested.
Preferably: the non-reflecting end of the first reflecting mirror is provided with a swinging driving component; the swing driving assembly is connected to the second bracket.
Preferably: the device to be tested also comprises a movable adjusting mechanism; the movable adjusting mechanism is connected in the turntable component to adjust the swing angle of the lens to be measured; the movable adjusting mechanism comprises at least two elastic limiting parts and at least two clamping parts; the elastic limiting component and the clamping component are arranged on the turntable component; a clamping cavity is arranged between the elastic limiting component and the clamping component; the lens to be tested is clamped and connected in the clamping cavity;
And/or the turntable assembly comprises a fourth bracket, a support base and a rotating motor; a placing cavity is arranged in the fourth bracket; the rotating motor is arranged in the placing cavity and is in transmission connection with the supporting seat; a supporting groove is formed in the supporting seat; and the elastic limiting part and the clamping part are both connected to the supporting groove.
Preferably: the elastic limiting part comprises a second elastic connecting piece and an abutting block; one end of the second elastic connecting piece is connected to the supporting groove; the other end of the second elastic connecting piece is connected with the abutting block; the abutting block abuts against the lens to be tested;
And/or the clamping component comprises a telescopic cylinder and a sucker; one end of the telescopic cylinder is connected with the supporting seat; the telescopic shaft of the telescopic cylinder extends to the supporting groove and is connected with the sucker; the sucking disc is connected with the lens to be tested in an adsorption mode.
The invention has the beneficial effects that the technical scheme changes the light path and realizes defocusing by adjusting the position of the target body by the displacement adjusting part, the rotating disc and the turntable part to adjust the lens to be tested, thereby providing virtual objects with different distances and sizes or shapes for the lens to be tested, further realizing acquisition and test of the use results of the lens to be tested under different irradiation conditions under the given point targets with different distance ranges and sizes or shapes, and realizing acquisition rationality and diversity of detection data; and the performance of the received images is adjusted through the area array detector so as to average the continuous multiple images and reduce the noise of the continuous multiple images; therefore, the accuracy and the rapidity of the test can be improved so as to adapt to more different performance tests.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below with reference to fig. 1 to 7.
FIG. 1 is a top view of a computational optical acquisition testing system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the structure of a light source device and a light guiding device in a computing optical acquisition test system according to an embodiment of the invention;
FIG. 3 is a schematic diagram illustrating a structure of a light source device in a computing optical acquisition test system according to an embodiment of the invention;
FIG. 4 is a schematic diagram illustrating a structure of a displacement adjusting component of a light source device in a computing optical acquisition test system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a target in a computing optical acquisition test system according to an embodiment of the present invention;
FIG. 6 is a schematic diagram showing the overall structure of a second mirror in a computing optical acquisition test system according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a lens to be tested in a computing optical acquisition test system according to an embodiment of the invention.
In the figure: 100-a light source device; 101-a support plate; 110-target body; 111-star point plates; 112-rotating a disc; 113-pulling the inner wheel; 114-a third scaffold; 115-driving the bumps; 116-limit grooves; 120-a light source body; 130-a displacement adjustment component; 131-a first rail member; 1311-first guide bar; 1312-a first slider; 1313-percent meter; 13131-contacts; 132-a second rail member; 1321-fixing the guide rail; 1322-a second slider; 140-a first rack; 200-a light guiding device; 210-a set of reflective lenses; 211-a first mirror; 212-a second mirror; 213-a wobble drive assembly; 2131-a first resilient connector; 2132-a movable rod; 2133-locating a threaded block; 220-a second scaffold; 300-a device under test; 310-area array detector; 320-lens to be tested; 330-an activity adjustment mechanism; 331-a supporting seat; 3311-support groove; 332-clamping members; 3321—telescoping cylinder; 3322-suction cup; 333-elastic limit parts; 3331-a second elastic connector; 3332-abutment block; 334-turret part; 3341-fourth rack; 3342-rotating electric machine.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.
In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a alone, both a and B, and a plurality of cases alone. In this context, the character "/" generally indicates that the associated object is an "or" relationship.
In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.
The present invention will be described in further detail with reference to fig. 1 to 7, but the present invention is not limited thereto.
As shown in fig. 1,6 and 7, in one embodiment of the present invention, the optical acquisition test system is calculated; comprising a light source device 100, a light guiding device 200 and a device 300 to be tested; the light source device 100 includes a displacement adjusting member 130, a rotating disk 112, a target body 110, and a light source body 120; the target body 110 is connected to the rotating disc 112; the displacement adjusting component 130 is movably connected with the rotating disc 112 to adjust the distance between the target body 110 and the light source body 120; the target body 110 is disposed on the path of the illumination light of the light source body 120; the light guiding device 200 includes a reflector plate set 210; the reflector set 210 is disposed on the path of the illumination light of the target 110; the device under test 300 includes a turret block 334, an area array detector 310, and a lens under test 320; the lens 320 to be measured is connected to the turntable member 334, and the lens 320 to be measured is disposed on the path of the reflected light of the reflection lens set 210; the area array detector 310 is disposed on the path of the refracted light beam of the lens 320 to be tested.
According to the technical scheme, through the adjustment of the displacement adjusting part, the rotating disc and the turntable part on the position of the target body and the adjustment of the lens to be tested, the light path is changed, defocusing is realized, virtual objects with different distances and sizes or shapes are provided for the lens to be tested, and further, under the point-giving targets with different distance ranges and sizes or shapes, the use results of the lens to be tested under different irradiation conditions are collected and tested, so that the collection rationality and diversity of detection data are realized; and the performance of the received images is adjusted through the area array detector so as to average the continuous multiple images and reduce the noise of the continuous multiple images; therefore, the accuracy and the rapidity of the test can be improved so as to adapt to more different performance tests.
Specifically, in some embodiments, as shown in fig. 1 and 2, the displacement adjustment member 130 includes a first rail member 131 and a second rail member 132; the mounting end of the bottom of the first rail member 131 is connected to the first bracket 140; the movable end of the first rail member 131 and the target body 110; the mounting end of the bottom of the second rail member 132 is connected to the first bracket 140; the movable end of the second rail member 132 is coupled to the targeting body 110. The structure can determine the accuracy and stability of sliding through the double-guide rail technology, and avoid excessive dislocation.
Wherein, in some embodiments, as shown in fig. 2 and 3 and 4, the first rail member 131 includes a first guide bar 1311, a first slider 1312, and a dial indicator 1313; the first guide bar 1311 is connected to the first bracket 140; the inner portion of the first slider 1312 is slidably coupled to the outer surface of the first guide bar 1311; the top of the first slider 1312 is connected to the target body 110; the dial indicator 1313 is attached to the first bracket 140; and a contact 13131 of the dial indicator 1313 is coupled to the first slider 1312. That is, the displacement length of the target body 110 can be rapidly sensed and tested by pushing or pulling the contact 13131 by the first slider 1312, so that the adjustment of the simulation target distance in the range of 100m to infinity can be realized; and ensure the accuracy of the test data. Further, as shown in fig. 3, a support plate 101 is disposed at the upper end of the first slider 1312; the backing plate 101 is attached to the target body 110. Still further, as shown in fig. 3 and 4, the first rail member 131 further includes a mounting block 1314; a mounting groove is formed in the mounting block 1314; the dial indicator 1313 is clamped on the inner wall of the mounting groove; in order to realize the positioning effect of percentage table 1313, avoid appearing the dial plate slip phenomenon of percentage table 1313 in the slip process to improve the accuracy of data, and guarantee the succinctness of structure, reduce the cost of equipment.
Wherein the dial indicator 1313 is a gauge type universal length measuring tool made using a precision rack and pinion mechanism; it is usually composed of measuring head, measuring rod, shockproof spring, rack, gear, hairspring, dial and pointer. The working principle is that the measuring rod caused by the measured size is moved in a tiny straight line, amplified by gear transmission and changed into the rotation of the pointer on the dial, thereby reading the measured size. The dial indicator is a measuring instrument which changes the linear displacement of a measuring rod into the angular displacement of a pointer by utilizing the transmission of a rack gear or a lever gear.
Wherein, in some embodiments, as shown in fig. 2 and 3, the second rail member 132 includes a fixed rail 1321 and a second slider 1322; the fixed rail 1321 is connected to the first bracket 140; the bottom of the second slider 1322 is slidably connected to the top of the fixed rail 1321; the second slide 1322 is connected to the target body 110. Further, as shown in fig. 3, the second slider 1322 is connected to the support plate 101. The structure can overcome the defect of independent existence through the double sliding rail action of combining the curved sliding rail with the plane sliding, thereby avoiding the phenomenon of excessive dislocation of the target body 110.
Specifically, in some embodiments, as shown in fig. 2 and 5, the target body 110 includes a star point plate 111 and a third bracket 114; the star point plate 111 is detachably connected (e.g. clamped) to the inside of the rotating disc 112; the rotating disc 112 is movably connected to the inside of the third bracket 114; the third bracket 114 is connected to the first bracket 140. The structure can rapidly adjust the light rays of the star point plate 111 penetrating the light source body through the rotation action of the rotating disc 112 to form corresponding images, so that images of different scenes are simulated (the images are switched to imaging tests within the depth of field), and the success rate of identifying specific targets under various simulated scenes is tested.
That is, star plates are used as targets at different distances. The point target provided by the acquisition and testing system is imaged using the device under test. The images in the area array detector passing through the lens to be detected are read, and the continuous images are averaged to reduce the noise of the images, so that the point spread function in the state can be obtained. In order to test the point spread functions under different working distances, the acquisition and test system is adjusted to different simulation distances, and the point spread functions are acquired in sequence; and then the point spread function acquisition is completed.
Wherein, as shown in fig. 5, at least two traction inner wheels 113 are disposed on the inner wall of the third bracket 114; a limit groove 116 is formed in the side surface of the rotating disc 112; the traction inner wheel 113 may extend into the interior of the limit groove 116 and the traction inner wheel 113 is rotatably connected with the rotating disc 112. The structure can extend into the limit groove 116 by pulling the inner wheel 113, so that the rotary disc 112 can be prevented from falling off from the third bracket 114, and the use stability is ensured; and the inner wheel 113 is rotationally connected with the rotating disc 112, so that the rotating smoothness of the rotating disc 112 can be ensured, and the adjusting speed can be improved. Further, as shown in fig. 5, a driving bump 115 is disposed on the surface of the rotating disc 112; so as to realize the movement of the driving lug 115 and drive the rotating disc 112 to rotate for placement angle, thereby realizing the pertinence and the accuracy of the operation.
That is, by adjusting the distance of the targets, targets at different distances ranging from 100m to infinity are simulated. According to the characteristic size of the observed target inspected by the product, calculating the corresponding object opening angles aiming at different working distances, carrying out corresponding focusing on the acquisition and testing system, and then carrying out imaging test on the resolution board target strip with the corresponding opening angle by using the system to be tested.
In particular, in some embodiments, as shown in fig. 1 and 2, the mirror plate set 210 includes a first mirror 211 and a second mirror 212; the first reflecting mirror 211 is disposed on the path of the illumination light of the target 110; and the first reflecting mirror 211 is disposed obliquely to the illumination direction of the target body 110; the second reflecting mirror 212 is disposed on the path of the reflected light of the first reflecting mirror 211; the lens 320 to be measured is disposed on the path of the reflected light of the second reflecting mirror 212. The structure can effectively reduce the length space occupied by the test system and ensure the test order through the inclined arrangement of the first reflecting mirror 211 and the target body 110; and the second reflecting mirror 212 can effectively and rapidly reflect light to the lens to be tested, so that the detection effect is improved, and the data authenticity is affected by excessive reflection loss. Wherein the first mirror 211 is a first plane mirror; the second mirror 212 is a second planar mirror.
As shown in fig. 2, an included angle μ is formed between the illumination direction of the target body 110 and the corresponding horizontal direction; the μ satisfies: the angle mu is less than or equal to 30 degrees and less than or equal to 75 degrees, and is preferably 30 degrees, 40 degrees, 50 degrees and 60 degrees; that is, the space occupied by the target body 110 can be reduced to a certain extent by setting a certain angle, and the reflection of the light rays can be ensured as much as possible. When the angle is too small or too large, part of the light is too concentrated to expose and the like.
As shown in fig. 2, an included angle α is formed between the reflecting surface of the first reflecting mirror 211 and the corresponding horizontal direction; the alpha satisfies the following conditions: alpha is not less than 45 degrees and not more than 80 degrees; and alpha is more than or equal to mu. The structure can effectively ensure the reflection quantity of light rays through a larger inclination angle alpha and ensure the brightness of the reflected light rays; thereby improving the accuracy of the subsequent test images.
As shown in fig. 2, β is disposed between the reflecting surface of the first reflecting mirror 211 and the reflecting surface of the second reflecting mirror 212; the beta satisfies: beta is more than 0 degrees and less than or equal to 30 degrees. This structure can effectively ensure that as much light as possible is reflected by the second reflecting mirror, and can control the reflection coverage range so that the lens 320 to be measured can receive all the light.
In particular, in some embodiments, as shown in fig. 1 and 2, the light guiding device 200 further includes a lens 230 and a second bracket 220; the first reflecting mirror 211 and the second reflecting mirror 212 are respectively connected to the second bracket 220; the lens 230 is disposed between the second reflecting mirror 212 and the lens 320 to be tested. Wherein the lens 230 is a flat lens. The structure can effectively reduce the path of reflected irradiation through the flat lens, reduce the loss of light rays, and enhance the intensity and stability of light ray irradiation.
Specifically, in some embodiments, as shown in fig. 1, 2 and 6, the non-reflective end of the first mirror 211 is provided with a swing drive assembly 213; the swing driving unit 213 is connected to the second bracket 220. The structure realizes the reflection angle of light rays through the swing driving assembly 213 so as to realize imaging at a plurality of angle positions in the field of view, record images at a plurality of angles and angle values, and complete switching to distortion test. Wherein, as shown in fig. 6, the swing driving unit 213 includes a housing 214 and at least two swing parts connected to the first mirror 211; the swinging component comprises a first elastic connecting piece 2131, a movable rod 2132 and a positioning threaded block 2133; a mounting cavity is arranged in the shell 214; the non-reflecting end of the first reflecting mirror 211 is arranged in the mounting cavity; one end of the first elastic connector 2131 is connected to the non-reflective end of the first mirror 211; the other end of the first elastic connecting piece 2131 is connected with one end of the movable rod 2132; the other end of the movable rod 2132 passes through the mounting cavity and is detachably connected with the positioning threaded block 2133. In some embodiments, as shown in fig. 6, the number of the swinging members is at least four and is disposed around the non-reflective end of the first mirror 211. That is, during the adjustment, the corresponding positioning screw blocks 2133 are rotated according to a desired angle to make the corresponding movable rod 2132 (movable rod 2132 or screw rod) move in or out, thereby causing the first mirror 211 to move in a desired direction; thereby increasing the regulation order and guaranteeing the regulation accuracy.
That is, the reflected path is effectively adjusted by arranging the first reflecting mirror 211 in the direction, so as to realize imaging at a plurality of angle positions within the field of view; and recording images of a plurality of angles and angle values, calculating to obtain the image height of the target on the image plane, and recording the reading of the swing angle. Performing imaging formula fitting on the recorded values of each group (angle and image height), wherein the obtained fitting residual error is absolute distortion, and the relative distortion is obtained by dividing the fitting residual error by the radius of the image plane; and further completing the distortion test.
Specifically, in some embodiments, as shown in fig. 2 and 7, the device under test 300 further includes a movable adjustment mechanism 330; the movable adjustment mechanism 330 is connected to the turntable member 334 to adjust the swing angle of the lens 320 to be measured; wherein the movable adjustment mechanism 330 comprises at least two elastic limiting members 333 and at least two clamping members 332; the elastic limiting member 333 and the clamping member 332 are disposed on the turntable member 334; and an elastic limiting member 333 and the clamping member 332 are interposed therebetween; the lens 320 to be tested is clamped and connected in the clamping cavity. Wherein, in some embodiments, as shown in fig. 7, the turntable assembly 334 includes a fourth support 3341, a support base 331, and a rotating motor 3342; a placement cavity is arranged in the fourth support 3341; the rotating motor 3342 is arranged in the placing cavity and is in transmission connection with the supporting seat 331; a support groove 3311 is arranged in the support seat 331; and the elastic stopper 333 and the clamp 332 are connected to the support groove 3311. That is, the elastic limiting component 333 and the clamping component 332 can be used for clamping and positioning the lens 320 to be tested, so that the device can be suitable for testing more different specified lenses 320 to be tested, and the types of testing systems can be reduced; and the stability of rotation is ensured, and the use safety is improved.
Wherein, as shown in fig. 7, the elastic limiting member 333 includes a second elastic connecting piece 3331 and an abutting block 3332; one end of the second elastic connection member 3331 is connected to the inner wall of the supporting groove 3311; the other end of the second elastic connecting piece 3331 is connected to the abutting block 3332; the abutting block 3332 abuts against the lens 320 to be tested. As shown in fig. 7, the clamping member 332 includes a telescopic cylinder 3321 and a suction cup 3322; one end of the telescopic cylinder 3321 is connected to the supporting seat 331; the telescopic shaft of the telescopic cylinder 3321 extends into the supporting groove 3311 and is connected with the sucking disc 3322; the sucking disc 3322 is in adsorption connection with the lens 320 to be tested. Further, as shown in fig. 7, the number of the clamping members 332 is at least two, and the clamping members are arranged at two ends of the supporting seat 331 in a staggered manner; and the number of the elastic stopper 333 is identical to that of the clamp 332. The elastic limiting members 333 and the clamping members 332 at two ends of the supporting seat 331 are arranged in a staggered manner, so that the placing angle of the lens 320 to be tested can be flexibly adjusted to adapt to the testing of more different environmental parameters.
That is, the star point plate is used as a target when the acquisition and testing system is operating in an infinity state. The system to be tested consists of a lens to be tested and an area array detector. The star point plate is imaged using the system under test. The optical system to be tested is arranged on the turntable and images the point target provided by the acquisition and test system. The turntable is rotated to image at a plurality of angular positions within the field of view, and a plurality of angular images, as well as angular values, are recorded.
And calculating according to the images of the angle positions to obtain the image height of the target on the image plane, and recording the angle reading of the turntable under the turntable. Performing imaging formula fitting on the recorded values of each group (angle and image height), wherein the obtained fitting residual error is absolute distortion, and the relative distortion is obtained by dividing the fitting residual error by the radius of the image plane; and further completing the distortion test.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the embodiments of the disclosure may be suitably combined to form other embodiments as will be understood by those skilled in the art.
Variations and modifications of the above embodiments will occur to those skilled in the art to which the invention pertains from the foregoing disclosure and teachings. Therefore, the present invention is not limited to the above-described embodiments, but is intended to be capable of modification, substitution or variation in light thereof, which will be apparent to those skilled in the art in light of the present teachings. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (7)
1. A computational optics collection testing system, characterized by: the device comprises a light source device, a light guiding device and a device to be tested; the light source device comprises a displacement adjusting part, a rotating disc, a target body and a light source body; the target body is connected to the rotating disc; the displacement adjusting component is movably connected with the rotating disc so as to adjust the distance between the target body and the light source body; the target body is arranged on the path of illumination rays of the light source body; the light guiding device comprises a reflecting lens group; the reflection lens group is arranged on the path of the illumination rays of the target body; the device to be tested comprises a turntable component, an area array detector and a lens to be tested; the lens to be tested is connected to the turntable component, and is arranged on the path of the reflected light rays of the reflection lens group; the area array detector is arranged on the path of the refracted light of the lens to be tested;
Wherein the displacement adjustment member includes a first rail member and a second rail member; the mounting end of the bottom of the first guide rail component is connected with the first bracket; the movable end of the first guide rail component is connected with the target body through a supporting plate; the mounting end of the bottom of the second guide rail component is connected with the first bracket; the movable end of the second guide rail component is connected with the target body through the supporting plate;
The first guide rail component comprises a first guide rod, a first sliding block and a dial indicator; the first guide rod is connected to the first bracket; the inner part of the first sliding block is connected with the outer surface of the first guide rod in a sliding way; the top of the first sliding block is connected with the supporting plate; the support plate is connected to the target body; the dial indicator is connected to the first bracket; the contact head of the dial indicator is connected with the first sliding block;
The second guide rail component comprises a fixed guide rail and a second sliding block; the fixed guide rail is connected to the first bracket; the bottom of the second sliding block is connected with the top of the fixed guide rail in a sliding way; the second sliding block is connected to the supporting plate.
2. The computing optical acquisition testing system of claim 1, wherein: the target body comprises a star point plate and a third bracket; the star point plate is detachably connected to the inside of the rotating disc; the rotating disc is movably connected to the inside of the third bracket; the third bracket is connected to the displacement adjustment member.
3. The computing optical acquisition testing system of claim 1, wherein: the reflector plate group comprises a first reflector and a second reflector; the first reflector is arranged on the path of illumination rays of the target body; the first reflecting mirror and the illumination direction of the target body are obliquely arranged; the second reflector is arranged on the path of the reflected light of the first reflector; the lens to be tested is arranged on the path of the reflected light of the second reflector.
4. A computational optics acquisition testing system according to claim 3, wherein: the light guiding device further comprises a lens and a second bracket; the first reflecting mirror and the second reflecting mirror are respectively connected to the second bracket; the lens is arranged between the second reflecting mirror and the lens to be tested.
5. The computational optics acquisition testing system of claim 4 wherein: the non-reflecting end of the first reflecting mirror is provided with a swinging driving component; the swing driving assembly is connected to the second bracket.
6. The computing optical acquisition testing system of claim 1, wherein: the device to be tested also comprises a movable adjusting mechanism; the movable adjusting mechanism is connected in the turntable component to adjust the swing angle of the lens to be measured; the movable adjusting mechanism comprises at least two elastic limiting parts and at least two clamping parts; the elastic limiting component and the clamping component are arranged on the turntable component; a clamping cavity is arranged between the elastic limiting component and the clamping component; the lens to be tested is clamped and connected in the clamping cavity;
And/or the turntable assembly comprises a fourth bracket, a support base and a rotating motor; a placing cavity is arranged in the fourth bracket; the rotating motor is arranged in the placing cavity and is in transmission connection with the supporting seat; a supporting groove is formed in the supporting seat; and the elastic limiting part and the clamping part are both connected to the supporting groove.
7. The computing optical acquisition testing system of claim 6, wherein: the elastic limiting part comprises a second elastic connecting piece and an abutting block; one end of the second elastic connecting piece is connected to the supporting groove; the other end of the second elastic connecting piece is connected with the abutting block; the abutting block abuts against the lens to be tested;
And/or the clamping component comprises a telescopic cylinder and a sucker; one end of the telescopic cylinder is connected with the supporting seat; the telescopic shaft of the telescopic cylinder extends to the supporting groove and is connected with the sucker; the sucking disc is connected with the lens to be tested in an adsorption mode.
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| CN104849023A (en) * | 2015-02-12 | 2015-08-19 | 中国人民解放军武汉军械士官学校 | High-precision multiband dynamic object simulator apparatus |
| CN105675266A (en) * | 2016-02-03 | 2016-06-15 | 上海仪万光电科技有限公司 | Device and method for measuring modulation transfer function of optical lens based on infinite conjugate optical path |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207516543U (en) * | 2017-11-07 | 2018-06-19 | 扬州莱达光电技术有限公司 | A kind of optics dynamic target system |
| CN212747866U (en) * | 2020-07-24 | 2021-03-19 | 长沙指南机电科技有限公司 | Two-dimensional automatic calibration platform for target plate instrument |
| CN112683494B (en) * | 2020-12-03 | 2023-05-09 | 西安科佳光电科技有限公司 | Device and method for testing comprehensive performance parameters of optical lens |
| CN113702000B (en) * | 2021-08-18 | 2023-05-19 | 中国科学院深圳先进技术研究院 | Aberration detection system and aberration detection method of optical imaging lens |
| CN217331043U (en) * | 2022-03-17 | 2022-08-30 | 扬州大学 | Monocular vision measuring device based on imaging screen position adjustment |
| CN220322419U (en) * | 2023-07-06 | 2024-01-09 | 上海捷热科技有限公司 | Target device of infrared target simulator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849023A (en) * | 2015-02-12 | 2015-08-19 | 中国人民解放军武汉军械士官学校 | High-precision multiband dynamic object simulator apparatus |
| CN105675266A (en) * | 2016-02-03 | 2016-06-15 | 上海仪万光电科技有限公司 | Device and method for measuring modulation transfer function of optical lens based on infinite conjugate optical path |
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