CN117091810A - Imaging quality testing device and method for poloxamer lens - Google Patents

Abstract

The disclosure relates to the technical field of lens testing, in particular to an imaging quality testing device and method of a sham lens. The imaging quality testing device comprises a fixing mechanism and a focusing mechanism, wherein the fixing mechanism comprises a fixing seat, a first mounting seat, a second mounting seat and a third mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are all mounted on the fixing seat, and the first mounting seat is used for mounting a line laser transmitter; the second mount pad is used for installing the aamer lens that waits to test, and the third mount pad is used for installing image sensor, and the pair focal plane of mechanism of focusing and the sand face coincidence that line laser emitter formed to make the pattern of focusing on the pair focal plane focus on image sensor through aamer lens and form test image, image sensor, aamer lens and line laser emitter form the aamer light path in this disclosure, do benefit to the accuracy that improves the aamer lens formation of image quality test, can realize batch detection to the aamer lens, do benefit to improvement efficiency of software testing.

Description

Imaging quality testing device and method for poloxamer lens

Technical Field

The disclosure relates to the technical field of testing, in particular to an imaging quality testing device and method of a sham lens.

Background

The lens is an optical lens for imaging by utilizing the law of the Mooney, and according to the law of the Mooney, when the extension surfaces of the plane of the object to be shot, the imaging plane and the lens plane are intersected in a straight line, the overall and clear image quality can be obtained.

The imaging quality of the poloxamer lens directly influences the imaging quality of the industrial camera, so that the testing accuracy is influenced. Therefore, before the lens is assembled to the camera, the imaging quality of the lens needs to be checked.

In the related art, a real photographing method is generally used for quality inspection of the lens of the poloxamer. Specifically, the camera lens is arranged on a test bench provided with an image sensor, then an object is photographed in real time to form an image, and the imaging quality of the camera lens is analyzed through the image. However, in this way, the lens and the image sensor are coaxially arranged, and there is a difference between the lens and the actual optical path of the lens, so that the quality inspection error of the lens is large, and there is a problem of misjudgment.

Disclosure of Invention

The present disclosure provides an imaging quality testing device and method for a sham lens, which can configure the sham lens in a sham light path, and rapidly and accurately perform imaging quality testing.

In order to achieve the above purpose, the present disclosure adopts the following technical scheme:

a first aspect of the present disclosure provides an imaging quality testing apparatus of a sham lens, including:

a securing mechanism comprising: the device comprises a fixed seat, a first mounting seat, a second mounting seat and a third mounting seat; the fixing seat is provided with a mounting surface; the first mounting seat is fixed on the mounting surface and is used for mounting the line laser transmitter so that the sham surface is perpendicular to the horizontal plane and the light emitting surface of the light emitting side of the line laser transmitter; the light emitting surface is perpendicular to a horizontal plane, wherein the light emitting surface is a plane formed by laser lines emitted by the line laser emitters at different working distances; the second mounting seat is fixed on the mounting surface and is used for detachably mounting the to-be-tested lens; the third mounting seat is rotatably mounted on the mounting surface and used for mounting the image sensor, and the third mounting seat can rotate around a first axis; wherein the first axis is perpendicular to the horizontal plane;

a focusing mechanism comprising: and the focusing plate is provided with a focusing surface, and the focusing surface is configured to coincide with the poloxamer surface so that a focusing pattern on the focusing surface is focused on the image sensor through the poloxamer lens to form a test image.

Compared with the prior art, the imaging quality testing device of the poloxamer lens provided by the first aspect of the present disclosure has the following advantages:

the imaging quality testing device of the poloxamer lens comprises a fixing mechanism and a focusing mechanism, wherein the fixing mechanism comprises a fixing seat, a first installation seat, a second installation seat and a third installation seat, the first installation seat, the second installation seat and the third installation seat are all installed on the fixing seat, and the first installation seat is used for installing a line laser transmitter so that a sham surface formed by a laser line at different working distances is perpendicular to a horizontal plane and a light emitting surface respectively; the second mounting seat is used for mounting the to-be-tested poloxamer lens, the third mounting seat is used for mounting the image sensor, and the image sensor, the poloxamer lens and the linear laser transmitter form an poloxamer light path; the focusing mechanism comprises a focusing plate, wherein a focusing surface of the focusing plate is overlapped with the poloxamer surface, so that a focusing pattern on the focusing surface is focused on the image sensor through the poloxamer lens to form a test image, and the imaging quality of the poloxamer lens is analyzed by using the test image. In the embodiment of the disclosure, the to-be-tested poloxamer lens is positioned in the poloxamer light path, accords with the actual working light path of the poloxamer lens, and is beneficial to improving the accuracy of the imaging quality test of the poloxamer lens. Through the to-be-tested measuring camera lens on the second mount pad of changing, can detect the imaging quality of camera lens in batches, do benefit to improvement efficiency of software testing.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the fixing mechanism is provided with a plurality of fixing mechanisms, and at least one of the following parameters of different fixing mechanisms is different: the inclination angle of the second mounting seat relative to the surface of the poloxamer and the distance between the second mounting seat and the third mounting seat along the optical axis direction of the lens of the poloxamer; or the position of the second mounting seat on the fixed seat is adjustable, so that the inclination angle of the second mounting seat relative to the surface of the magnetic material is different; the position of at least one of the second mounting seat and the third mounting seat on the fixing seat is adjustable, so that the distances between the second mounting seat and the third mounting seat along the optical axis direction of the poloxamer lens are different.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of this disclosure, the imaging quality testing device of the above-mentioned poloxamer lens still includes line laser emitter and image sensor, line laser emitter install in on the first mount pad, image sensor install in on the third mount pad.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the focusing mechanism further includes a first adapter, a mounting frame, and a connecting piece, the focusing plate is fixed on the mounting frame, a first connecting hole is provided on the first adapter, and a second connecting hole is provided on the mounting frame; connecting the first connection hole and the second connection hole through the connection piece; the mounting frame and the first adapter seat can rotate relatively, so that the focusing plate and the horizontal plane form preset included angles with different angles.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the number of the first connecting holes is plural, any two of the first connecting holes form a connecting hole group, and a connecting line at the center of the first connecting hole in the connecting hole group forms the preset included angle with the horizontal plane; the first adapter is provided with a plurality of connecting hole groups, wherein the angle of the preset included angle of at least one connecting hole group is different from the angles of the preset included angles of other connecting hole groups.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the first adapter comprises a bottom plate and a vertical plate, the vertical plate is disposed on the bottom plate, and the vertical plate is fixedly connected with the mounting frame, so that the focusing plate and the horizontal plane form the preset included angle; the vertical plate is provided with an avoidance notch, so that the projection of the vertical plate on the plane where the focusing plate is located on the mounting frame.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the focusing mechanism further includes a focusing plate adjusting unit, the focusing plate adjusting unit is connected with the focusing plate, and the focusing plate adjusting unit drives the focusing plate to move relative to the first mounting seat, so that the focusing surface coincides with the poloxamer surface.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the second mount is provided with a lens mounting threaded hole, so that the to-be-tested poloxamer lens is threaded in the lens mounting threaded hole.

As an improvement of the imaging quality testing device of the above-mentioned poloxamer lens of the present disclosure, the imaging quality testing device of the above-mentioned poloxamer lens further includes a rotary displacement platform and a second adapter, the second adapter with the third mount pad is connected, the rotary displacement platform install in on the installation face, just the rotary displacement platform with the second adapter is connected, the rotary displacement platform passes through the second adapter drives the third mount pad is around first axis rotation.

A second aspect of the present disclosure provides a method for testing imaging quality of a sham lens, the imaging quality testing device of the sham lens according to any one of the first aspect is used to perform imaging quality testing on the sham lens, the imaging quality testing device includes a line laser emitter and an image sensor;

the method comprises the following steps:

step S1: the method comprises the steps that a to-be-tested poloxamer lens is mounted on a second mounting seat, so that a line laser transmitter, an image sensor and the poloxamer lens form a poloxamer light path, and a focusing pattern on the focusing surface is focused on the image sensor through the poloxamer lens to form a test image;

Step S2: and performing imaging quality test on the poloxamer lens by using the test image. It comprises the following steps:

the imaging quality testing method of the poloxamer lens provided by the second aspect of the present disclosure has the same advantages as the imaging quality testing device of the poloxamer lens of the first aspect because the imaging quality testing method is used for realizing the imaging quality testing device of the poloxamer lens of the first aspect.

As an improvement of the imaging quality testing method of the above-mentioned poloxamer lens of the present disclosure, when at least one of the back focal length, working distance, and mounting angle of the poloxamer lens is changed, the method further includes at least one of the following steps before step S1:

step S3: adjusting the inclination angle of the focusing plate relative to the horizontal plane;

step S4: changing a fixing mechanism so that at least one of the following parameters of the fixing mechanism after changing is different, and the replaced poloxamer lens, the image sensor and the line laser transmitter form an poloxamer light path: the inclination angle of the second mounting seat relative to the sham surface and the distance between the second mounting seat and the third mounting seat along the optical axis direction of the poloxamer lens;

Or, performing at least one of the following adjustment steps to enable the adjusted poloxamer lens, the image sensor and the linear laser transmitter to form an poloxamer light path: and adjusting the position of the second mounting seat on the fixed seat, and adjusting the relative positions of the second mounting seat and the third mounting seat along the optical axis direction of the poloxamer lens.

As an improvement of the imaging quality testing method of the above-mentioned poloxamer lens of the present disclosure, the imaging quality testing of the above-mentioned poloxamer lens by using the test image includes:

determining an MTF curve graph of the test image, and determining the contrast of each view field at preset spatial frequency; if the contrast is larger than or equal to a preset contrast threshold, the poloxamer lens is qualified, otherwise, the contrast is unqualified.

In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects brought by the technical features of the technical solutions described above, other technical problems that the imaging quality testing device and method of the present disclosure can solve, other technical features included in the technical solutions, and beneficial effects brought by the technical features of the present disclosure, further detailed description will be made in specific embodiments.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the embodiments of the present disclosure or the description of the prior art will be briefly described below, and it is apparent that the drawings in the following description are only a part of embodiments of the present disclosure, these drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but rather to illustrate the disclosed concept to those skilled in the art by referring to the specific embodiments, and other drawings may be obtained from these drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic diagram of a system for measuring imaging quality and a system for measuring imaging quality according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a line laser according to an embodiment of the present disclosure the light emitter forms a schematic diagram of the surface of the liquid crystal display;

FIG. 3 is a schematic structural diagram of an imaging quality testing apparatus according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of an imaging quality testing apparatus provided by an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a focusing plate according to an embodiment of the disclosure;

fig. 6 is an exploded view of a part of the structure of a focusing mechanism provided in an embodiment of the present disclosure.

Reference numerals illustrate:

110: a line laser emitter; 120: a lens of the medicine; 130: an image sensor; 141: a light-emitting surface; 100: a fixing mechanism; 200: a fixing seat; 201: a fixing surface; 300: a first mount; 310: a first base; 311: a mounting groove; 320: a gland; 400: a second mounting base; 410: a lens mounting threaded hole; 500: a third mount; 510: a second seat body; 520: a protective cover; 530: a rotary displacement table; 540: the second adapter seat; 600: a focusing mechanism; 610: a focusing plate; 611: focusing patterns; 620: a first adapter; 621: a bottom plate; 622: a vertical plate; 6221: a first connection hole; 6222: avoiding the notch; 630: a mounting frame; 631: a first side rail; 6311: a second connection hole; 6312: a first positioning groove; 6313: a second positioning groove; 632: a second side rail; 640: a pressing plate; 650: a focusing plate adjusting unit; 660: a lifting block; 700: a base; 710: and a support plate.

Detailed Description

The lens is an optical lens for imaging by utilizing the law of the Mooney, and according to the law of the Mooney, when the extension surfaces of the plane of the object to be shot, the imaging plane and the lens plane are intersected in a straight line, the overall and clear image quality can be obtained. The imaging quality of the poloxamer lens directly influences the imaging quality of the industrial camera, so that the testing accuracy is influenced. Therefore, before the lens is assembled to the camera, the imaging quality of the lens needs to be checked.

In the related art, a real photographing method is generally used for quality inspection of the lens of the poloxamer. Specifically, the camera lens is arranged on a test bench provided with an image sensor, then an object is photographed in real time to form an image, and the imaging quality of the camera lens is analyzed through the image. However, in this way, the lens and the image sensor are coaxially arranged, and there is a difference between the lens and the actual optical path of the lens, so that the quality inspection error of the lens is large, and there is a problem of misjudgment.

In view of this, an embodiment of the present disclosure provides an imaging quality testing device for a sham lens, which uses three mounting seats to mount a line laser emitter, a to-be-tested poloxamer lens, and an image sensor, respectively, so that the line laser emitter, the to-be-tested poloxamer lens, and the image sensor form a poloxamer light path conforming to the law of the poloxamer, and a sham surface formed by a laser line at different working distances is perpendicular to a horizontal plane and a light emitting surface, and a focusing surface of a focusing plate is overlapped with the poloxamer surface, so that the surface of the sham lens is materialized; focusing patterns on the focusing surface are focused on an image sensor through a to-be-tested lens to form a test image; the imaging quality of the poloxamer lenses was checked by analyzing the test images. In the embodiment of the disclosure, the to-be-tested poloxamer lens is positioned in the poloxamer light path, accords with the actual working light path of the poloxamer lens, and is beneficial to improving the accuracy of the imaging quality test of the poloxamer lens. Through the to-be-tested measuring camera lens on the second mount pad of change, can detect the imaging quality of camera lens in batches, do benefit to improvement efficiency of software testing

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

First, with reference to fig. 1 and fig. 2, application scenarios of the sham lens and definitions of the surfaces of the sham lens according to the embodiments of the present disclosure will be described. Fig. 1 is a schematic diagram of a poloxamer optical system and an imaging quality testing device according to an embodiment of the present disclosure; fig. 2 is a schematic diagram of a linear laser emitter forming a surface of a dough.

The clary lens 120 is applied in the clary light path, the clary optical system forming the clary light path comprises a linear laser emitter 110, the clary lens 120 and an image sensor 130, the line laser emitter 110 is used as a light source for emitting laser lines, for example, laser line A1B1 and laser line A2B2 shown in fig. 2. The image sensor 130 may be a CMOS image sensor, a CCD image sensor, or the like.

In one particular application, the axicon optical system may be a line laser 3D camera. Based on the principle of triangulation, the line laser transmitter 110 transmits laser lines to the surface of an object, and the lens 120 captures the laser lines on the surface of the object and images the laser lines on the image sensor 130, and profile information of the surface of the object is formed through calculation. The imaging quality of the lens 120 affects the measurement accuracy of the camera, so after the lens 120 is processed and before the lens 120 is assembled to the whole lens system, the lens 120 needs to be tested.

In the embodiment of the disclosure, in order to ensure the accuracy and efficiency of the test and inspection of the poloxamer lens 120, the poloxamer lens 120 is placed in the optical path of the poloxamer, and the whole machine application environment of the poloxamer optical system is simulated for performing the real shot image inspection. In practical applications of the optical system, the object surface is parallel to and opposite to the light-emitting surface 141, so that depth information of the object surface can be obtained, and therefore, the laser line needs to be perpendicularly directed to the object surface. Then, before testing the lens 120, the position of the laser transmitter 110 needs to be adjusted so that the laser line can be directed vertically to the surface of the object. The line laser emitter 110 emits light from the light emitting side, and the light emitting surface 141 is located at one side of the light emitting side. In the embodiment of the present disclosure, the light emitting surface 141 is perpendicular to the horizontal plane.

The laser line is emitted into the air, and the position is not easy to determine. The embodiment of the disclosure introduces the concept of the surface of the object, and when the surface of the object is perpendicular to the light-emitting surface, the laser line can vertically irradiate to the surface of the object. The laser line emitted by the line laser emitter 110 is not the plane passing through the same working distance is a surface of the water-soluble polymer. As shown in fig. 2, the line laser emitter 110 emits a laser line A1B1 on the first surface M1, the line laser emitter 110 emits a laser line A2B2 on the second surface M2, the first surface M1 and the second surface M2 are parallel to the light emitting surface 141, and a distance L between the first surface M1 and the second surface M2 is a working distance of the line laser 3D camera. The surface A1A2B2B1 is a surface of the poloxamer.

Before the imaging quality testing device of the embodiment of the present disclosure is used to test the lens of the clary, the position of the line laser transmitter 110 is determined, so that the clary surface is perpendicular to the light emitting surface and the horizontal plane.

The structure and functions of the imaging quality testing apparatus according to the embodiment of the present disclosure will be described below with reference to fig. 3 and 4, where fig. 3 is a schematic structural diagram of the imaging quality testing apparatus provided by the embodiment of the present disclosure; fig. 4 is an exploded view of an imaging quality testing apparatus provided by an embodiment of the present disclosure.

As shown in fig. 3 and 4, the imaging quality testing device in the embodiment of the disclosure includes a fixing mechanism 100 and a focusing mechanism 600, wherein the fixing mechanism 100 provides an installation position for a structure forming a light path of a poloxamer, the focusing mechanism 600 is used for providing a focusing pattern, and when a focusing surface where the focusing pattern is located is overlapped with the surface of the poloxamer, the focusing pattern is focused on an image sensor through the lens of the poloxamer to form a testing image. And analyzing the imaging quality of the poloxamer lens by testing the image.

The fixing mechanism 100 includes a fixing base 200, a first mount 300, a second mount 400, and a third mount 500. The fixing base 200 has a mounting surface 201, and provides a mounting space for the first mount 300, the second mount 400, and the third mount 500. The first mount 300 is used for mounting a line laser transmitter, the second mount 400 is used for mounting a lens of a subject to be tested, and the third mount 500 is used for mounting an image sensor.

The imaging quality testing device of the embodiment of the disclosure further includes a line laser emitter and an image sensor, the line laser emitter is mounted on the first mounting seat 300, the image sensor is mounted on the third mounting seat 500, and the line laser emitter, the image sensor and the lens to be tested are mounted on the fixing seat 200 through three mounting seats respectively to form a light path of the lens. Based on the orientations shown in fig. 3 and 4, the first mount 300 is located at one side of the second mount 400 along the positive direction of the Y-axis, and the third mount 500 is located at the rear side of the second mount 400, and forms a light path of the poloxamer after the online laser emitter, the poloxamer lens, and the image sensor are mounted.

For different types of the poloxamer lenses, at least one of the following parameters is different: the installation angle, working distance and mechanical back focal length in the whole equipment. Therefore, the installation angle of the lens and the distance between the lens and the image sensor along the optical axis direction of the lens are changed. For an imaging quality testing apparatus, at least one of the following parameters is different: the inclination angle of the second mounting seat 400 relative to the surface of the sand, and the distance between the second mounting seat 400 and the third mounting seat 500 along the optical axis direction of the sand lens. It should be noted that, the second mounting base 400 is inclined with respect to the light emitting surface and the horizontal surface, and the light emitting surface is perpendicular to the light emitting surface.

When carrying out imaging quality test to the different model's the camera lens, image sensor and line laser transmitter form the optical path of the camera lens all the time.

In some embodiments, the securing mechanism 100 is provided with a plurality of different securing mechanisms 100 that differ in at least one of the following parameters: the inclination angle of the second mounting seat 400 relative to the surface of the sand, and the distance between the second mounting seat 400 and the third mounting seat 500 along the optical axis direction of the sand lens. That is, when the imaging quality test is performed on the different types of the poloxamer lenses, the fixing mechanism 100 is integrally replaced, and when the online laser transmitter is mounted on the first mounting seat 300, the to-be-tested poloxamer lens is mounted on the second mounting seat 400 and the image sensor is mounted on the third mounting seat 500, the online laser transmitter, the poloxamer lens and the image sensor still form the poloxamer light path.

In other embodiments, the position of the lens and image sensor on the holder 200 may be moved. Specifically, the positions of the second mount 400 and the third mount 500 on the fixing base 200 are adjustable. The position of the second mounting seat 400 on the fixing seat 200 is adjustable, so that the inclination angle of the second mounting seat 400 relative to the surface of the magnetic material is different. For example, the fixing base 200 is provided with a plurality of fixing holes, and when the second mounting base 400 is mounted on different fixing holes, the inclination angle of the second mounting base 400 with respect to the surface of the magnetic element is different. At least one of the second mount 400 and the third mount 500 is adjustable in position on the fixing base 200 at least one of the fixing base 200 such that the distances of the second mount 400 and the third mount 500 along the optical axis direction of the sand lens are different. In the embodiment of the disclosure, the position of the third mount 500 on the fixing base 200 is adjustable, for example, a plurality of fixing holes are provided on the fixing base 200, and when the third mount 500 is mounted on different fixing holes, the distance between the third mount 500 and the second mount 400 along the optical axis direction of the sham lens is different. That is, when the imaging quality test is performed on the different types of the poloxamer lenses, the positions of the second mounting seat 400 and the third mounting seat 500 on the fixing seat 200 are adjusted, so that the linear laser emitter, the poloxamer lenses and the image sensor still form the poloxamer light path.

When the on-line laser transmitter, the poloxamer lens and the image sensor are installed and the focusing surface of the focusing mechanism 600 is overlapped with the poloxamer surface, the optical axis of the on-line laser transmitter, the center of the focusing pattern, the optical axis of the poloxamer lens and the center of the image sensor are positioned in the same plane, so that a test image is formed by the center of the image sensor conveniently.

The structure of each part of the imaging quality testing apparatus is described in detail below with reference to the accompanying drawings.

As shown in fig. 3 and 4, the fixing base 200 has a plate-shaped structure, and the top surface of the fixing base 200 forms a mounting surface 201 for mounting the first mount 300, the second mount 400, and the third mount 500; the fixing base 200 may be provided with fixing holes so that the first, second and third mounting bases 300, 400 and 500 are fixed to the mounting surface 201.

In order to make the imaging quality testing apparatus of the embodiment of the present disclosure convenient to move and store, the imaging quality testing apparatus of the embodiment of the present disclosure further includes a base 700, and the base 700 may be plate-shaped, with a simple structure. The fixing base 200 is fixed on the base 700, and in the embodiment of the disclosure, a support plate 710 is disposed on the base 700, and the support plate 710 is connected with the bottom surface of the fixing base 200. The support plate 710 may be a grid plate structure, which provides a stable supporting force and contributes to a reduction in weight of the support plate 710. Of course, in order to improve stability of supporting effect on the fixing base 200, a plurality of support plates 710 may be provided, for example, two support plates 710 are provided, respectively fixed to both ends of the fixing base 200.

Referring to fig. 4, a first mount 300 of an embodiment of the present disclosure is formed with a mounting cavity for mounting a line laser transmitter. Illustratively, the first mount 300 includes a first mount 310 and a pressing cover 320, at least one of the first mount 310 and the pressing cover 320 is provided with a mounting slot 311 for accommodating a line laser emitter, and the first mount 310 is fixedly connected with the fixing plate 210 of the fixing base 200; the gland 32 is fixedly connected to the first housing 310 to form a mounting cavity for mounting the line laser transmitter.

The second mount 400 of this disclosed embodiment is provided with camera lens installation screw hole 410 to make the quick-witted camera lens screw thread installation of waiting to test in camera lens installation screw hole 410, make the fixed stable reliable of quick-witted camera lens, and the installation is simple and convenient, does benefit to the efficiency that improves the quick-witted camera lens imaging quality test. When the lens is mounted on the second mount 400, the optical axis of the lens is coaxial with the lens mounting screw hole 410, and the lens mounting screw hole 410 is utilized to conveniently position the second mount 400, so that the position of the lens meets the mounting design requirement.

The third mount 500 of the embodiment of the present disclosure is used for mounting an image sensor, and in order to avoid damage to the image sensor during the test, the third mount 500 forms a protection structure for protecting the image sensor. In some examples, the third mounting seat 500 includes a second seat 510 and a protective cover 520, the bottom of the second seat 510 is rotatably mounted on the fixed seat 200, and an opening is provided on the front side of the second seat 510 to expose the image sensor, so as to sense the light fed back by the lens; the protective cover 520 is fixedly connected with the second seat 510 to form an accommodating space for accommodating the image sensor, and plays a role in protecting the image sensor.

When the test image is integrally formed using the apparatus including the image sensor, the third mount 500 may exist independently, that is, the apparatus including the image sensor is integrally mounted on the third mount 500; alternatively, the third mount 500 does not need to be separately provided, and the housing of the apparatus including the image sensor is the third mount 500. Generally, the apparatus including the image sensor is integrally mounted on the subsequent second adaptor 540, which is beneficial to simplifying the structure of the imaging quality testing apparatus.

The third mounting seat 500 is rotatably mounted on the fixing seat 200 in various manners, and the bottom end of the second seat 510 is illustratively mounted on the fixing seat 200 through a rotating pin, so that the structure is simple; in the embodiment of the present disclosure, the imaging quality testing apparatus further includes a rotary displacement table 530 and a second adapter 540, where a top surface of the second adapter 540 is connected to the second base 510 of the third mount 500, and the connection manner may be screw connection, clamping connection, or the like. The bottom surface of the second adapter 540 is fixed on the rotary displacement table 530. The rotary displacement table 530 is fixed on the mounting surface 201 of the fixing base 200, and the rotary displacement table 530 drives the third mounting base 500 to rotate around the first axis through the second adapter 540, so that the full field of view of the test image is clear. The rotary displacement stage 530 of the present disclosure may be manually adjustable or may be electrically adjustable.

The third mounting seat 500 and the image sensor mounted on the third mounting seat are driven to rotate around the first axis through the rotary displacement table 530, so that the operation is convenient and quick connection is realized; and the embodiment of the disclosure not only makes the installation of the third installation seat 500 more convenient by setting the second adapter seat 540, but also can replace the second adapter seat 540 according to actual conditions, so that the center of the image sensor is located at the design height, and the installation design requirement of the lens of the poloxamer is satisfied.

With continued reference to fig. 3 and 4, the focus mechanism 600 of the disclosed embodiment includes a focus plate 610, the focus plate 610 providing a focus plane having a focus pattern. Referring to fig. 5, fig. 5 is a schematic structural diagram of a focusing board provided by an embodiment of the disclosure, the focusing board 610 of the embodiment of the disclosure is a rectangular board, which has two opposite board surfaces, a focusing pattern 611 is disposed on one of the board surfaces, the focusing pattern 611 is a black and white checkerboard pattern, and the board surface on which the focusing pattern 611 is disposed is a focusing surface of the focusing board 610.

Fig. 6 is an exploded view of a part of the structure of a focusing mechanism provided in an embodiment of the present disclosure. Referring to fig. 6, a focusing plate 610 according to an embodiment of the present disclosure forms a predetermined angle α with a horizontal plane. The arrangement is such that the black-white boundary line of the test image formed on the image sensor by the checkerboard pattern on the focusing plate 610 is inclined, and the MTF curve graph of the image is conveniently calculated by using the edge method.

In the embodiment of the present disclosure, the focusing mechanism 600 further includes a first adapter 620, a mounting frame 630, a pressing plate 640, and a connecting member. The focusing plate 610 is fixed on the mounting frame 630, the mounting frame 630 is fixed on the first adapter 620 through a connecting piece, and the focusing plate 610 and the horizontal plane form a preset included angle α through the mounting frame 630 being obliquely mounted relative to the first adapter 620.

The following describes the mounting manner of the focusing plate 610 with reference to fig. 4 and 6. In the disclosed embodiment, the mounting frame 630 has a rectangular frame structure including two opposing first side beams 631 and two opposing second side beams 632. The mounting frame 630 of the embodiment of the disclosure is an integrally formed integral piece, and has a stable structure.

The first side beam 631 is provided with a first positioning groove 6312, a second positioning groove 6313 is arranged on a part of the bottom wall of the first positioning groove 6312, the focusing plate 610 is installed in the second positioning groove 6313, and the two first pressing plates 640 are fixed in the first positioning groove 6312 through screws, so that the focusing plate 610 is pressed in the second positioning groove 6313. This arrangement makes the installation of the focusing plate 610 simpler and more stable.

With continued reference to fig. 4 and 6, the first adaptor 620 is provided with a first connection hole 6221, and the mounting frame 630 is provided with a second connection hole 6311; the first connecting hole 6221 and the second connecting hole 6311 are connected by the connecting piece, so that the mounting frame 630 is fixed on the first adapter 620, and the connection manner is stable and reliable.

For different types of the poloxamer lenses, the installation angles of the different types of the poloxamer lenses in the optical system are different, and the preset angle alpha of the inclination of the focusing plate 610 is also different. The mounting frame 630 and the first adapter 620 in the embodiment of the disclosure may rotate relatively, so that the focusing plate 610 and the horizontal plane form a plurality of preset included angles with different angles, and thus, the device can be adapted to different types of the lens.

The mounting frame 630 is provided with a second connection hole 6311, the first adaptor 620 is provided with a first connection hole 6221, and when the mounting frame 630 and the first adaptor 620 rotate to a set angle, the first connection hole 6221 and the second connection hole 6311 are connected by a connecting piece, so that the mounting frame 630 and the focusing plate 610 mounted thereon incline by a preset angle α relative to a horizontal plane.

Illustratively, two first coupling holes 6221 are provided, a plurality of second coupling holes 6311 are provided, and the number of second coupling holes 6311 is greater than the number of first coupling holes 6221. Wherein, one second connecting hole 6311 is opposite to one first connecting hole 6221 and is connected by a connecting piece, and the connecting piece is used as a rotating shaft, so that the mounting frame 630 and the first adapter 620 can rotate relatively; the remaining second connection holes 6311 are arranged at intervals along an arc such that another first connection hole 6221 may be connected with one of the second connection holes 6311 arranged in an arc through a connection member, thereby tilting the mounting frame 630 and the focusing plate 610 mounted thereon by different preset angles α with respect to a horizontal plane.

Referring to fig. 6, in the embodiment of the disclosure, the number of the first connecting holes 6221 is plural, any two first connecting holes 6221 form a connecting hole group, and a connecting line of the centers of the first connecting holes 6221 in the connecting hole group forms a preset included angle α with a horizontal plane; the first adaptor 620 is provided with a plurality of connection hole groups, and illustratively, two first connection holes 6221 at two ends of the dashed line L1 form one connection hole group, two first connection holes 6221 at two ends of the dashed line L2 form one connection hole group, and two first connection holes 6221 at two ends of the dashed line L3 form one connection hole group.

Wherein the angle of the preset included angle alpha of at least one connecting hole group is different from the angles of the preset included angles alpha of other connecting hole groups. The preset included angles α between the center connecting lines of the connecting hole groups where the dashed lines L1, the dashed lines L2 and the dashed lines L3 are located and the horizontal plane are different from each other, so that the imaging quality test can be performed by adapting to different types of the poloxamer lenses.

In order to improve the connection stability between the first adaptor 620 and the mounting frame 630, a plurality of first connection holes 6221, such as three, four, etc., may be disposed in the same connection hole group; alternatively, at least two connecting hole groups with the same preset included angle α are provided, for example, two first connecting holes 6221 are respectively provided at two ends of the imaginary line L1 to form one connecting hole group, and two imaginary lines L1 are provided to form four first connecting holes 6221. Thus, the first connecting hole 6221 can be avoided being arranged in the middle of the first adapter 620, and a notch is conveniently arranged in the middle of the first adapter 620, so that the first adapter 620 is prevented from being projected onto the focusing plate 610 to influence the formation of the test image.

The first adapter 620 of the embodiment of the disclosure includes a bottom plate 621 and a vertical plate 622, the vertical plate 622 is disposed on the bottom plate 621, and the vertical plate 622 is fixedly connected with the mounting frame 630, so that the focusing plate 610 forms a preset included angle α with a horizontal plane; the vertical plate 622 is provided with a avoidance notch 6222, so that the projection of the vertical plate 622 on the plane where the focusing plate 610 is located on the mounting frame 630, and the first adapter 620 is prevented from being projected on the focusing plate 610 to affect the formation of the test image.

Referring to fig. 4, the focusing mechanism 600 of the embodiment of the present disclosure further includes a focusing plate adjusting unit 650, and the focusing plate adjusting unit 650 is mounted on the base 700. The focusing plate adjusting unit 650 is connected to the focusing plate 610, and in particular, the focusing plate adjusting unit 650 is indirectly connected to the focusing plate 610 through the first adapter 620 and the mounting frame 630. The focusing plate adjusting unit 650 drives the focusing plate 610 to move relative to the first mount 300, so that the focusing surface coincides with the surface of the poloxamer.

In some possible implementations, the focusing plate adjusting unit 650 includes a plurality of connected displacement stages, wherein at least one displacement stage is used to drive the focusing plate 610 to move along a set direction, and wherein at least one displacement stage is used to drive the focusing plate 610 to rotate about a set axis, so that a focal plane of the focusing plate 610 coincides with the surface of the poloxamer.

The setting direction is at least one of a first horizontal direction, a second horizontal direction and a vertical direction, wherein the first horizontal direction, the second horizontal direction and the vertical direction are perpendicular to each other; the setting axis is at least one of a second axis and a third axis, the axial direction of the second axis extends along the first horizontal direction, and the axial direction of the third axis extends along the vertical direction.

The horizontal plane corresponds to the XY plane in the drawing, based on the directions in fig. 3 and 4. The first horizontal direction corresponds to the X-axis direction in the drawing, the second horizontal direction corresponds to the Y-axis direction in the drawing, and the vertical direction corresponds to the Z-axis direction in the drawing.

The focusing plate adjusting unit 650 may include five displacement stages, respectively defined as a first displacement stage configured to move in a first horizontal direction, a second displacement stage configured to move in a second horizontal direction, a third displacement stage configured to move vertically, a fourth displacement stage configured to rotate about a second axis, and an axial direction of the second axis coincides with an optical axis of the laser line, thus facilitating adjustment of the focusing plate 610. The fifth displacement stage is configured to rotate about a third axis. Each displacement table is provided with a locking mechanism, when the focusing plate 610 is adjusted to be overlapped with the magnetic force transducer, the locking mechanism locks the position of the focusing plate 610, so that the position change of the focusing plate 610 caused by the fact that the displacement table is touched by mistake in subsequent operation is avoided.

In the embodiment of the present disclosure, the center of the focus pattern 611 coincides with the center of the focus plate 610 and coincides with the vertical axis (i.e., the third axis described above) of the focus plate adjustment unit 650. So set up for focusing board 610 and the adjusting unit structure who connects are stable, convenient regulation. And the size of the focusing pattern comprises the whole field of view imaged by the image sensor, so that the checkerboard pattern of the focusing pattern image can fill the whole field of view, and a full field of view MTF curve graph can be formed conveniently.

The focusing mechanism 600 of the embodiment of the present disclosure further includes a lifting block 660, where the lifting block 660 is installed between the focusing plate adjusting unit 650 and the first adapter 620 to adjust the center height of the focusing plate 610 so as to be in the same horizontal plane with the optical axis of the lens.

Therefore, the imaging quality testing device of the embodiment of the disclosure installs the line laser emitter, the lens to be tested and the image sensor through the fixing mechanism 100, and forms a light path of the lens; the focusing surface is overlapped with the poloxamer surface, so that a focusing pattern on the focusing surface is focused on the image sensor through the poloxamer lens to form a test image, the imaging quality of the poloxamer lens is tested, and the test result is accurate; and through the to-be-tested spool on the second mount pad of change, can test spool batch, do benefit to the improvement efficiency of software testing.

The above description is made on the structure of the imaging quality testing device of the poloxamer lens in the embodiments of the present disclosure, and the method for performing test acceptance on the poloxamer lens by using the imaging quality testing device in the embodiments of the present disclosure will be described in detail below with reference to the imaging quality testing device. The imaging quality testing apparatus includes a line laser emitter and an image sensor.

The imaging quality testing method of the poloxamer lens provided by the embodiment of the disclosure comprises the following steps:

step S1: the method comprises the steps that a to-be-tested poloxamer lens is mounted on a second mounting seat, so that a line laser transmitter, an image sensor and the poloxamer lens form a poloxamer light path, and a focusing pattern on a focusing surface is focused on the image sensor through the poloxamer lens to form a test image;

in the step, the position of the poloxamer lens along the optical axis direction is regulated by utilizing the structure of the poloxamer lens, so that the central view field of the test image is focused clearly. And adjusting the rotation angle of the third mounting seat around the first axis by using the rotary displacement table so as to enable the full view field of the test image imaged on the image sensor to be focused clearly. In this step, the sharpness of the test image can be determined by the MTF graph.

S2: and (3) performing imaging quality test on the poloxamer lens by using the test image so as to judge whether the poloxamer lens meets the imaging quality requirement.

In some specific implementations, imaging quality testing of the poloxamer lens using the test image includes:

determining an MTF curve graph of a test image, and determining the contrast of each view field at a preset spatial frequency; if the contrast is larger than or equal to a preset contrast threshold, the Samsung lens is qualified, otherwise, the Samsung lens is unqualified.

In the imaging quality testing process of the poloxamer lens, the image sensor is in communication connection with the display device, so that a test image can be displayed on the display device in real time. And determining an MTF curve graph of each view field of the test image in real time by using analysis software, and displaying the contrast of the preset spatial frequency.

The position of the optical axis direction of the lens is adjusted, so that the contrast of the central visual field in the preset spatial frequency reaches a peak value, and the position adjustment of the lens in the optical axis direction is completed. In the adjusting process, the contrast of the preset spatial frequency is in a trend of rising and then reducing, and when the contrast is smaller, the maximum value appearing in front of the contrast is judged to be the peak value.

And then, adjusting the position of the third mounting seat and the image sensor mounted on the third mounting seat around the first axis through the rotary displacement table, so that the contrast of each view field at the preset spatial frequency reaches a peak value, and then completing the position adjustment of the image sensor. In the adjusting process, the contrast of the preset spatial frequency is in a trend of rising and then reducing, and when the contrast is smaller, the maximum value appearing in front of the contrast is judged to be the peak value.

If the peak contrast of each view field at the preset spatial frequency is greater than or equal to a preset contrast threshold, the sand lens is qualified and can be used for the subsequent complete machine of the optical system of the Sam; otherwise, the product is unqualified and cannot be assembled into the whole equipment.

It should be noted that in the actual testing process, the consistency of a batch of the poloxamer lenses is good, and when the batch of the poloxamer lenses is tested, the position of the image sensor does not need to be adjusted or the rotation angle is small.

After the step S2 is completed, the poloxamer lens is detached from the second mounting seat, so that preparation is made for subsequent imaging quality test of the poloxamer lens.

The imaging quality testing method provided by the embodiment of the disclosure further includes, before step S1:

step S0: and determining that the focusing surface of the focusing plate coincides with the surface of the poloxamer.

In the step, the surface of the line laser transmitter is a plane formed by laser lines emitted by the line laser transmitter under different working distances, the surface of the line laser transmitter is perpendicular to a horizontal plane and a light emitting surface of a light emitting side of the line laser transmitter, and the light emitting surface is perpendicular to the horizontal plane.

In some embodiments, step S0 is specifically the following:

step S01: before the to-be-tested poloxamer lens is mounted on the second mounting seat, the linear laser method transmitter is mounted on the first mounting seat, so that the sham surface is perpendicular to the horizontal plane and the light emitting surface.

In some implementations, the line laser transmitter is mounted on the mount by a dowel pin that extends along the Z-axis, and the line laser transmitter is rotatable about the dowel pin. Firstly, adjusting the rotation angle of the linear laser transmitter around the optical axis of the linear laser transmitter to enable the laser line to be perpendicular to a horizontal plane, and at the moment, enabling the surface of the linear laser transmitter to be perpendicular to the horizontal plane; and then the linear laser transmitter is rotated around the locating pin, so that the light emitting surface is perpendicular to the light spreading surface. And then marking the position of the line laser transmitter, fixing the first mounting seat on the fixing seat, and enabling the surface of the line laser transmitter to be perpendicular to the horizontal plane and the light emitting surface. Of course, this is just some of these implementations and is not limiting of the implementations in which the surface of the light-emitting surface is made perpendicular to the horizontal plane.

Step S02: and adjusting the position of the focusing plate until the focusing surface is coincident with the surface of the magnetic material, and fixing the focusing plate at the position where the focusing surface is coincident with the surface of the magnetic material.

In the embodiment of the disclosure, the position of the focusing plate is adjusted by using the focusing plate adjusting unit until the focusing surface coincides with the surface of the poloxamer. In some implementations, the focusing plate is driven to rotate around the second axis by the focusing plate adjusting unit so that the focusing surface is parallel to the laser line; the focusing plate is driven to rotate around a third axis by utilizing the focusing plate adjusting unit, so that the focusing surface is parallel to the magnetic force measuring surface; the focusing plate is driven to move along the Y-axis direction by the focusing plate adjusting unit, so that the focusing surface is overlapped with the magnetic surface.

Step S03: the image sensor is determined to be mounted on a third mount rotatable about the first axis.

Wherein the first axis is perpendicular to the horizontal plane. In the embodiment of the disclosure, the resolution of the image sensor is larger than that of the poloxamer lens to be tested, so that the focusing pattern is focused on the image sensor through the poloxamer lens, and the definition of an image to be tested due to the fact that the resolution of the image sensor is too low is avoided.

When the specification and model of the poloxamer lens are changed, at least one of the back focal length, the working distance and the installation angle of the poloxamer lens is changed, and the method according to the embodiment of the disclosure further comprises at least one of the following steps before step S1: the back focal length of the herein the poloxamer lens may be a mechanical back focal length.

Step S3: and adjusting the inclination angle of the focusing plate relative to the horizontal plane. The step can be understood as adjusting the connection hole group connected to the mounting frame and the first adapter, so that the preset included angle α between the focusing plate and the horizontal plane is changed. Therefore, the inclination angle of the black-white boundary line in the test image can be matched with the angle requirement of calculating the MTF by the edge method. For example, when calculating the MTF by the edge method, the inclination angle of the black-white boundary line is required to be 4 ° to 11 °, and the inclination angle of the focusing plate relative to the horizontal plane is adjusted so that the inclination angle of the black-white boundary line in the test image is 4 ° to 11 °.

Step S4: changing the fixing mechanism to make at least one of the following parameters of the changed fixing mechanism different, and make the changed poloxamer lens, the image sensor and the line laser transmitter form an poloxamer light path: the inclination angle of the second mounting seat relative to the sham surface and the distance between the second mounting seat and the third mounting seat along the optical axis direction of the sham lens; it can be understood that when carrying out the image quality test to the different model's the camera lens, wholly change fixed establishment for the camera lens after the change, image sensor and line laser emitter form the optical path of the camera lens.

Or, performing at least one of the following adjustment steps to enable the adjusted poloxamer lens, the image sensor and the line laser transmitter to form an poloxamer light path: and adjusting the position of the second mounting seat on the fixed seat, and adjusting the relative positions of the second mounting seat and the third mounting seat along the optical axis direction of the sham lens. This step can be understood to be, when carrying out the quality testing of formation of image to the different models's the camera lens, adjust the position of second mount pad on the fixing base to/or adjust the position of third mount pad on the fixing base, make the camera lens after adjusting, image sensor and line laser emitter form the optical path of the car.

In summary, in the embodiment of the disclosure, the imaging quality testing device is used to configure the lens of the poloxamer in the optical path of the poloxamer, so as to test the imaging quality, and the testing mode is accurate; the imaging quality test of the test image on the poloxamer lens can be performed only by installing the to-be-tested poloxamer lens on the second installation seat, and the operation is simple; through the to-be-tested measuring camera lens on the second mount pad of changing, can detect the imaging quality of camera lens in batches, do benefit to improvement efficiency of software testing.

In the above description, descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

Claims (12)

1. An imaging quality testing device of a sham lens, comprising:

a securing mechanism comprising: the device comprises a fixed seat, a first mounting seat, a second mounting seat and a third mounting seat; the fixing seat is provided with a mounting surface; the first mounting seat is fixed on the mounting surface and is used for mounting the line laser transmitter so that the sham surface is perpendicular to the horizontal plane and the light emitting surface of the light emitting side of the line laser transmitter; the light emitting surface is perpendicular to a horizontal plane, wherein the light emitting surface is a plane formed by laser lines emitted by the line laser emitters at different working distances; the second mounting seat is fixed on the mounting surface and is used for detachably mounting the to-be-tested lens; the third mounting seat is rotatably mounted on the mounting surface and used for mounting the image sensor, and the third mounting seat can rotate around a first axis; wherein the first axis is perpendicular to the horizontal plane;

A focusing mechanism comprising: and the focusing plate is provided with a focusing surface, and the focusing surface is configured to coincide with the poloxamer surface so that a focusing pattern on the focusing surface is focused on the image sensor through the poloxamer lens to form a test image.

2. The imaging quality testing apparatus of the poloxamer lens according to claim 1, wherein the fixing mechanism is provided in plurality, at least one of the following parameters of different fixing mechanisms is different: the inclination angle of the second mounting seat relative to the surface of the poloxamer and the distance between the second mounting seat and the third mounting seat along the optical axis direction of the lens of the poloxamer;

or the position of the second mounting seat on the fixed seat is adjustable, so that the inclination angle of the second mounting seat relative to the surface of the magnetic material is different; the position of at least one of the second mounting seat and the third mounting seat on the fixing seat is adjustable, so that the distances between the second mounting seat and the third mounting seat along the optical axis direction of the poloxamer lens are different.

3. The imaging quality testing apparatus of a juvenile camera of claim 1, further comprising a line laser emitter mounted on the first mount and an image sensor mounted on the third mount.

4. The imaging quality testing device of the poloxamer lens according to claim 3, wherein the focusing mechanism further comprises a first adapter, a mounting frame and a connecting piece, the focusing plate is fixed on the mounting frame, a first connecting hole is formed in the first adapter, and a second connecting hole is formed in the mounting frame;

connecting the first connection hole and the second connection hole through the connection piece; the mounting frame and the first adapter seat can rotate relatively, so that the focusing plate and the horizontal plane form preset included angles with different angles.

5. The imaging quality testing device of the poloxamer lens according to claim 4, wherein the number of the first connecting holes is plural, any two of the first connecting holes form a connecting hole group, and a connecting line at the center of the first connecting hole in the connecting hole group forms the preset included angle with the horizontal plane; the first adapter is provided with a plurality of connecting hole groups, wherein the angle of the preset included angle of at least one connecting hole group is different from the angles of the preset included angles of other connecting hole groups.

6. The imaging quality testing device of the poloxamer lens according to claim 5, wherein the first adapter comprises a bottom plate and a vertical plate, the vertical plate is arranged on the bottom plate, and the vertical plate is fixedly connected with the mounting frame, so that the focusing plate and the horizontal plane form the preset included angle; the vertical plate is provided with an avoidance notch, so that the projection of the vertical plate on the plane where the focusing plate is located on the mounting frame.

7. The imaging quality testing apparatus of a poloxamer lens according to any one of claims 1-6, wherein said focusing mechanism further comprises a focusing plate adjustment unit, said focusing plate adjustment unit being connected to said focusing plate, said focusing plate adjustment unit driving said focusing plate to move relative to said first mount so that said focusing surface coincides with said poloxamer surface.

8. The imaging quality testing apparatus of a poloxamer lens according to any one of claims 1-6, wherein said second mount is provided with a lens mounting threaded hole such that said poloxamer lens to be tested is threadedly mounted in said lens mounting threaded hole.

9. The imaging quality testing apparatus of a poloxamer lens according to any one of claims 1-6, further comprising a rotational displacement stage and a second adapter, said second adapter being connected to said third mount, said rotational displacement stage being mounted on said mounting surface and said rotational displacement stage being connected to said second adapter, said rotational displacement stage driving said third mount to rotate about said first axis via said second adapter.

10. An imaging quality testing method of a sham lens, characterized in that an imaging quality testing device of the sham lens according to any one of claims 1-9 is used for testing the imaging quality of the sham lens, and the imaging quality testing device comprises a line laser emitter and an image sensor;

the method comprises the following steps:

step S1: the method comprises the steps that a to-be-tested poloxamer lens is mounted on a second mounting seat, so that a line laser transmitter, an image sensor and the poloxamer lens form a poloxamer light path, and a focusing pattern on the focusing surface is focused on the image sensor through the poloxamer lens to form a test image;

step S2: and performing imaging quality test on the poloxamer lens by using the test image.

11. The method for testing the imaging quality of the poloxamer lens according to claim 10, wherein when at least one of the back focal length, the working distance, and the mounting angle of the poloxamer lens is changed, the method further comprises at least one of the following steps before step S1:

step S3: adjusting the inclination angle of the focusing plate relative to the horizontal plane;

step S4: changing a fixing mechanism so that at least one of the following parameters of the fixing mechanism after changing is different, and the replaced poloxamer lens, the image sensor and the line laser transmitter form an poloxamer light path: the inclination angle of the second mounting seat relative to the sham surface and the distance between the second mounting seat and the third mounting seat along the optical axis direction of the poloxamer lens;

Or, performing at least one of the following adjustment steps to enable the adjusted poloxamer lens, the image sensor and the linear laser transmitter to form an poloxamer light path: and adjusting the position of the second mounting seat on the fixed seat, and adjusting the relative positions of the second mounting seat and the third mounting seat along the optical axis direction of the poloxamer lens.

12. The method for testing the imaging quality of the poloxamer lens according to claim 10, wherein the testing the imaging quality of the poloxamer lens using the test image comprises:

determining an MTF curve graph of the test image, and determining the contrast of each view field at preset spatial frequency; if the contrast is larger than or equal to a preset contrast threshold, the poloxamer lens is qualified, otherwise, the contrast is unqualified.