Optical adjusting frame, optical testing device and adjusting method of optical adjusting frame

Abstract

The invention relates to the technical field of optical devices, in particular to an optical adjusting frame, an optical testing device and an adjusting method of the optical adjusting frame. The optical adjusting frame comprises a fixed support, an adjusting support, a first elastic part and a second elastic part. The adjusting support is provided with a first driving part and a second driving part, one end of the first elastic part is connected to the fixing support, the other end of the first elastic part is connected to the adjusting support, the first elastic part is driven by the first driving part, and the first driving part is configured to adjust the compression or extension state of the first elastic part; one end of the second elastic part is connected to the fixing support, the other end of the second elastic part is connected to the adjusting support, the second elastic part is driven by the second driving piece, and the second driving piece is configured to adjust the compression or extension state of the second elastic part. The rigidity of the first elastic part is larger than that of the second elastic part. The optical testing device comprises the optical adjusting frame. The adjusting precision of the optical adjusting frame can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical devices, and in particular to an optical adjustment frame, an optical testing device and an adjustment method of the optical adjustment frame. Background Art

[0002] In optical testing, it is necessary to use an optical adjustment frame to accurately adjust the inclination and position of optical elements (such as optical lenses). After adjustment, the stability of the optical elements must be ensured so that the optical elements are not easily dislocated due to factors such as vibration, and the need to readjust the optical elements must be avoided.

[0003] Since the optical adjustment frame is a precision instrument, even if the position of the optical element differs from the target position by 1um, it may have a significant impact on the test results. However, the adjustment accuracy of the existing optical adjustment frame is not high, which can easily cause the optical element to over-travel during the adjustment process. The optical element needs to be adjusted repeatedly, resulting in a large number of adjustment and calibration times for the optical element, making the adjustment process of the optical element cumbersome and time-consuming. Summary of the invention

[0004] The main purpose of the present invention is to provide an optical adjustment frame, an optical testing device and an adjustment method for the optical adjustment frame, aiming to solve the technical problems of low adjustment accuracy and complicated and time-consuming adjustment process of the existing optical adjustment frame.

[0005] To achieve the above object, the present invention provides an optical adjustment frame, comprising:

[0006] A fixing bracket, wherein the fixing bracket is used to install the optical element;

[0007] An adjusting bracket, wherein the adjusting bracket is provided with a first driving member and a second driving member;

[0008] a first elastic portion, one end of the first elastic portion is connected to the fixing bracket, the other end of the first elastic portion is connected to the adjusting bracket, the first elastic portion is driven by the first driving member, and the first driving member is configured to adjust the compression or extension state of the first elastic portion;

[0009] a second elastic portion, one end of the second elastic portion is connected to the fixing bracket, the other end of the second elastic portion is connected to the adjusting bracket, the second elastic portion is driven by the second driving member, and the second driving member is configured to adjust the compression or extension state of the second elastic portion;

[0010] Wherein, the stiffness of the first elastic part is greater than the stiffness of the second elastic part.

[0011] In some embodiments, the fixing bracket is provided with a first connecting groove at the first elastic part and a third connecting groove at the second elastic part, and the adjusting bracket is provided with a second connecting groove at the first elastic part and a fourth connecting groove at the second elastic part;

[0012] One end of the first elastic part close to the fixing bracket is connected to a first connecting member, and one end of the first elastic part close to the adjusting bracket is connected to a second connecting member, the first connecting member is placed in the first connecting groove, and the second connecting member is placed in the second connecting groove;

[0013] The end of the second elastic part close to the fixed bracket is connected to the third connecting member, the end of the second elastic part close to the adjustable bracket is connected to the fourth connecting member, the third connecting member is placed in the third connecting groove, and the fourth connecting member is placed in the fourth connecting groove;

[0014] The first driving member is connected to the first connecting member and is used to drive the first connecting member to move in the first connecting groove, and the second driving member is connected to the third connecting member and is used to drive the third connecting member to move in the third connecting groove;

[0015] or,

[0016] The first driving member is connected to the second connecting member and is used to drive the second connecting member to move in the second connecting groove. The second driving member is connected to the fourth connecting member and is used to drive the fourth connecting member to move in the fourth connecting groove.

[0017] In some embodiments, a first sliding groove is provided on the inner side wall of the first connecting groove, the first connecting member is placed in the first sliding groove, the first driving member drives the first connecting member to move in the first sliding groove, a third sliding groove is provided on the inner side wall of the third connecting groove, the third connecting member is placed in the third sliding groove, and the second driving member drives the third connecting member to move in the third sliding groove;

[0018] or,

[0019] The inner side wall of the second connecting groove is provided with a second sliding groove, the second connecting member is placed in the second sliding groove, the first driving member drives the second connecting member to move in the second sliding groove, the inner side wall of the fourth connecting groove is provided with a fourth sliding groove, the fourth connecting member is placed in the fourth sliding groove, and the second driving member drives the fourth connecting member to move in the fourth sliding groove.

[0020] In some embodiments, the fixing bracket has a first direction and a second direction that are perpendicular to each other;

[0021] Along the first direction, the adjustment bracket is provided with a first adjustment member, one end of the first adjustment member abuts against the fixed bracket, and the first adjustment member is configured to adjust the inclination angle of the fixed bracket in the first direction;

[0022] Along the second direction, the adjustment bracket is provided with a second adjustment member, one end of the second adjustment member is abutted against the fixed bracket, and the second adjustment member is configured to adjust the inclination angle of the fixed bracket in the second direction.

[0023] In some embodiments, the adjustment bracket is provided with a third adjustment member at the intersection of the first direction and the second direction, and one end of the third adjustment member abuts against the fixed bracket.

[0024] In some embodiments, the adjustment bracket is provided with a first plugging slot and a second plugging slot, the first adjustment member is plugged into the first plugging slot, and the second adjustment member is plugged into the second plugging slot;

[0025] Among them, the first plug-in slot is provided with a first locking member, and the first locking member is configured to adjust the locking or loosening of the first adjusting member in the first plug-in slot; the second plug-in slot is provided with a second locking member, and the second locking member is configured to adjust the locking or loosening of the second adjusting member in the second plug-in slot.

[0026] In some embodiments, along the first direction, at least one first elastic portion and one second elastic portion are disposed between the fixing bracket and the adjusting bracket, and the first elastic portion is disposed on a side close to the first adjusting member;

[0027] Along the second direction, at least one first elastic portion and one second elastic portion are disposed between the fixing bracket and the adjusting bracket, and the first elastic portion is disposed on a side close to the second adjusting member.

[0028] In some embodiments, the adjustment bracket is provided with scale lines.

[0029] Correspondingly, the present invention also proposes an optical testing device, comprising:

[0030] The optical adjustment frame described in any of the above embodiments, wherein the adjustment bracket of the optical adjustment frame is provided with a mounting hole;

[0031] The optical adjustment frame is connected to the mounting frame via a mounting piece passing through the mounting hole.

[0032] Correspondingly, the present invention further proposes an adjustment method for an optical adjustment frame, the adjustment method being used to adjust the optical adjustment frame described in any of the above embodiments, comprising:

[0033] Coarsely adjusting the optical adjustment frame so that the compression amount of the first elastic part is small, the compression amount of the second elastic part is moderate, the preload force between the fixed bracket and the adjustment bracket is small, and a wide range of adjustment of the fixed bracket is achieved;

[0034] After the coarse adjustment is completed, the optical adjustment frame is finely adjusted, and the compression amount of the first elastic part is increased while the compression amount of the second elastic part is finely adjusted to increase the preload force between the fixed bracket and the adjustment bracket to a state with a large preload force. Through the supplementary adjustment of the small stiffness of the second elastic part, the optical adjustment frame can be adjusted smoothly and the fixed bracket is in a state with a small floating force, thereby realizing a small range adjustment of the fixed bracket.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] In the technical solution of the present invention, the fixed bracket can be coarsely adjusted first to achieve adjustment of the fixed bracket within a large range, thereby improving the speed of the fixed bracket during adjustment, and then the fixed bracket can be finely adjusted to achieve adjustment of the fixed bracket within a small range, thereby improving the accuracy of the fixed bracket during adjustment.

[0037] When the fixed bracket is roughly adjusted, the first elastic part is loosened by the first driving member, and the second elastic part is tightened by the second driving member, so that the compression or extension of the first elastic part is smaller than the compression or extension of the second elastic part. Since the rigidity of the second elastic part is relatively small, the elastic force of the second elastic part during compression or extension is relatively small, so that there is a small pre-tightening force between the fixed bracket and the adjustment bracket, and the fixed bracket has high flexibility. Therefore, the fixed bracket can be adjusted over a wide range and a large stroke, so that the fixed bracket can drive the optical element to quickly approach the target position.

[0038] When fine-tuning the fixed bracket, the first elastic part is tightened by using the first driving member while the second elastic part is kept tightened, so that the compression or extension of the first elastic part is greater than or equal to the compression or extension of the second elastic part. Since the first elastic part has a large stiffness, the elastic force of the first elastic part when compressed or extended is large, so that there is a large pre-tightening force between the fixed bracket and the adjustment bracket. At this time, the fixed bracket has a low flexibility. When the same adjustment force is applied to the fixed bracket, the adjustment resistance of the fixed bracket will increase, so that the adjustment stroke of the fixed bracket will become smaller. Therefore, the fixed bracket can be adjusted in a small range and a small stroke, so that the fixed bracket drives the optical element to gradually and accurately reach the target position.

[0039] In the present invention, when the fixed bracket is roughly adjusted, the second elastic part can slightly increase the binding force between the fixed bracket and the adjustment bracket, and the operator can achieve a large stroke adjustment of the fixed bracket by applying a small force. While ensuring the stability of the fixed bracket during adjustment, the flexibility of the fixed bracket during adjustment is not affected, thereby improving the efficiency of the fixed bracket during adjustment. When the fixed bracket is finely adjusted, the first elastic part and the second elastic part can increase the binding force between the fixed bracket and the adjustment bracket, and the operator can easily control the influence of the adjustment force on the change of the fixed bracket stroke, preventing the operator from causing the fixed bracket to over-stroke with a slight force, ensuring that the fixed bracket can be quickly adjusted into place, reducing the number of adjustment and calibration times of the fixed bracket, and simplifying the adjustment process of the fixed bracket.

[0040] The optical testing device using the optical adjustment frame and the adjustment method of the optical adjustment frame can easily control the adjustment accuracy of the optical adjustment frame, thereby facilitating the improvement of the adjustment efficiency of the optical adjustment frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0042] Figure 1 An isometric view of the overall structure of an optical adjustment frame provided by an embodiment of the present invention at a first viewing angle;

[0043] Figure 2 An isometric view of the overall structure of an optical adjustment frame provided by an embodiment of the present invention at a second viewing angle;

[0044] Figure 3 A structural front view of an optical adjustment frame provided by an embodiment of the present invention;

[0045] Figure 4 A structural cross-sectional view of an optical adjustment frame provided by an embodiment of the present invention;

[0046] Figure 5 A schematic flow chart of an adjustment method for an optical adjustment frame provided in one embodiment of the present invention.

[0047] Description of Figure Numbers:

[0048] 10. Optical adjustment frame;

[0049] 100. Fixing bracket;

[0050] 110, first connecting groove; 120, third connecting groove;

[0051] 111, first chute;

[0052] 121, third chute;

[0053] 200, adjusting bracket;

[0054] 210, second connection slot; 220, fourth connection slot; 230, first plug-in slot; 240, second plug-in slot;

[0055] 211, second chute;

[0056] 221, fourth chute;

[0057] 300, a first elastic portion;

[0058] 310, first connecting member; 320, second connecting member;

[0059] 400, second elastic portion;

[0060] 410, third connecting member; 420, fourth connecting member;

[0061] 500, a first driving member;

[0062] 600, second driving member;

[0063] 700, first adjusting member;

[0064] 800, second adjusting member;

[0065] 900, third adjusting member;

[0066] 1000, a first locking member;

[0067] 1100, second locking member;

[0068] X, first direction;

[0069] Y, second direction.

[0070] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0071] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0073] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0074] In the related art, the currently common two-plate optical adjustment frame is adjusted by precision thread drive, and its three drive nuts are distributed at right angles. This optical adjustment frame has high adjustment accuracy, but generally requires the use of an adjustment wrench to screw the drive nut. When the operator uses the adjustment wrench to adjust the drive nut, the screwing force is not easy to control. If the operator uses a little force, it will cause the optical adjustment frame to overtravel, that is, the optical element exceeds the target position. At this time, the optical adjustment frame needs to be adjusted in the reverse direction. This cycle can make the optical element finally be in the target test position.

[0075] Therefore, the adjustment accuracy of the existing optical adjustment frame is not high, which easily causes the optical element to overtravel during the adjustment process, and the optical element needs to be adjusted repeatedly, resulting in a large number of adjustment and calibration times for the optical element, making the adjustment process of the optical element cumbersome and time-consuming.

[0076] Based on this, refer to Figures 1 to 4 An embodiment of the present invention provides an optical adjustment frame 10 , which includes a fixed frame 100 , an adjustment frame 200 , a first elastic portion 300 and a second elastic portion 400 .

[0077] The fixed bracket 100 is used to install an optical element (for example, the optical element can be an optical lens). The fixed bracket 100 can be provided with a mounting hole. The optical element can be connected to the mounting hole by a mounting plate to achieve the positioning of the optical element on the fixed bracket 100. By adjusting the fixed bracket 100, the position and inclination of the optical element can be adjusted. The adjustment bracket 200 is provided with a first driving member 500 and a second driving member 600. The first driving member 500 and the second driving member 600 can both be driving nuts. By screwing the first driving member 500 and the second driving member 600, the movement stroke and inclination of the fixed bracket 100 can be adjusted, thereby achieving the adjustment of the position and inclination of the optical element. The first elastic part 300 can be a spring, one end of the first elastic part 300 is connected to the fixed bracket 100, and the other end of the first elastic part 300 is connected to the adjustment bracket 200. The first elastic part 300 is driven by the first driving member 500, and the first driving member 500 is configured to adjust the compression or extension state of the first elastic part 300. The second elastic part 400 may be a spring, one end of the second elastic part 400 is connected to the fixing bracket 100, the other end of the second elastic part 400 is connected to the adjusting bracket 200, the second elastic part 400 is driven by the second driving member 600, and the second driving member 600 is configured to adjust the compression or extension state of the second elastic part 400. The stiffness of the first elastic part 300 is greater than the stiffness of the second elastic part 400. That is, the first elastic part 300 is a high-stiffness spring, and the second elastic part 400 is a low-stiffness spring.

[0078] Specifically, in this embodiment, the fixed bracket 100 can be coarsely adjusted first to achieve adjustment of the fixed bracket 100 within a large range, thereby improving the speed of the fixed bracket 100 during adjustment, and then the fixed bracket 100 can be finely adjusted to achieve adjustment of the fixed bracket 100 within a small range, thereby improving the accuracy of the fixed bracket 100 during adjustment.

[0079] When the fixed bracket 100 is roughly adjusted, the first elastic part 300 is loosened by the first driving member 500, and the second elastic part 400 is tightened by the second driving member 600, so that the compression or extension of the first elastic part 300 is smaller than the compression or extension of the second elastic part 400. Since the rigidity of the second elastic part 400 is relatively small, the elastic force of the second elastic part 400 when compressed or extended is relatively small, so that there is a small pre-tightening force between the fixed bracket 100 and the adjustment bracket 200, and the fixed bracket 100 has high flexibility. Therefore, the fixed bracket 100 can be adjusted in a wide range and a large stroke, so that the optical element driven by the fixed bracket 100 can quickly approach the target position.

[0080] When fine-tuning the fixed bracket 100, the first elastic part 300 is tightened by using the first driving member 500 while the second elastic part 400 is kept tightened, so that the compression or extension of the first elastic part 300 is greater than or equal to the compression or extension of the second elastic part 400. Since the rigidity of the first elastic part 300 is relatively large, the elastic force of the first elastic part 300 is relatively large when it is compressed or extended, so that there is a relatively large pre-tightening force between the fixed bracket 100 and the adjustment bracket 200. At this time, the fixed bracket 100 has relatively low flexibility. When the same adjustment force is applied to the fixed bracket 100, the adjustment resistance of the fixed bracket 100 will increase, so that the adjustment stroke of the fixed bracket 100 will become smaller. Therefore, the fixed bracket 100 can be adjusted in a small range and a small stroke, so that the optical element driven by the fixed bracket 100 can gradually and accurately reach the target position.

[0081] In this embodiment, when the fixed bracket 100 is roughly adjusted, the second elastic part 400 can slightly increase the binding force between the fixed bracket 100 and the adjustment bracket 200, and the operator can achieve a large stroke adjustment of the fixed bracket 100 by applying a small force. While ensuring the stability of the fixed bracket 100 during adjustment, the flexibility of the fixed bracket 100 during adjustment is not affected, thereby improving the efficiency of the fixed bracket 100 during adjustment. When the fixed bracket 100 is finely adjusted, the first elastic part 300 and the second elastic part 400 can increase the binding force between the fixed bracket 100 and the adjustment bracket 200, and the operator can easily control the influence of the adjustment force on the stroke change of the fixed bracket 100, preventing the fixed bracket 100 from over-traveling due to a slight force applied by the operator, ensuring that the fixed bracket 100 can be adjusted in place in one step, reducing the number of adjustment and calibration times of the fixed bracket 100, and simplifying the adjustment process of the fixed bracket 100.

[0082] It should be noted that, in other embodiments, the first driving member 500 can be gradually tightened to gradually adjust the compression or extension state of the first elastic part 300, and the second driving member 600 can be gradually tightened to gradually adjust the compression or extension state of the second elastic part 400, so that the fixed bracket 100 can be adjusted in stages through the processes of coarse adjustment, semi-fine adjustment and fine adjustment.

[0083] In some embodiments, reference Figures 1 to 4, the fixing bracket 100 is provided with a first connection groove 110 at the first elastic part 300, and a third connection groove 120 at the second elastic part 400, and the adjusting bracket 200 is provided with a second connection groove 210 at the first elastic part 300, and a fourth connection groove 220 at the second elastic part 400. The first elastic part 300 is connected to the first connecting member 310 at one end close to the fixing bracket 100, and the first elastic part 300 is connected to the second connecting member 320 at one end close to the adjusting bracket 200. The first connecting member 310 is placed in the first connecting groove 110, and the second connecting member 320 is placed in the second connecting groove 210. The second elastic part 400 is connected to the third connecting member 410 at one end close to the fixing bracket 100, and the second elastic part 400 is connected to the fourth connecting member 420 at one end close to the adjusting bracket 200. The third connecting member 410 is placed in the third connecting groove 120, and the fourth connecting member 420 is placed in the fourth connecting groove 220.

[0084] The first driving member 500 is connected to the first connecting member 310 to drive the first connecting member 310 to move in the first connecting groove 110, and the second driving member 600 is connected to the third connecting member 410 to drive the third connecting member 410 to move in the third connecting groove 120. Alternatively, the first driving member 500 is connected to the second connecting member 320 to drive the second connecting member 320 to move in the second connecting groove 210, and the second driving member 600 is connected to the fourth connecting member 420 to drive the fourth connecting member 420 to move in the fourth connecting groove 220.

[0085] Specifically, in this embodiment, taking the connection between the first driving member 500 and the first connecting member 310 and the connection between the second driving member 600 and the third connecting member 410 as an example, when the first driving member 500 is screwed with an adjusting wrench, the first driving member 500 will drive the first connecting member 310 to move in the first connecting groove 110, thereby compressing or extending the first elastic part 300, thereby changing the elastic force of the first elastic part 300, so that the preload force between the fixed bracket 100 and the adjusting bracket 200 changes significantly. When the second driving member 600 is screwed with an adjusting wrench, the second driving member 600 will drive the third connecting member 410 to move in the third connecting groove 120, thereby compressing or extending the second elastic part 400, thereby changing the elastic force of the second elastic part 400, so that the preload force between the fixed bracket 100 and the adjusting bracket 200 changes slightly. The above adjustment method is convenient for operators to roughly adjust or finely adjust the fixed bracket 100, and improve the accuracy of adjusting the optical element to the target position.

[0086] The first driving member 500 is connected to the second connecting member 320 to adjust the elastic force of the first elastic part 300, and the second driving member 600 is connected to the fourth connecting member 420 to adjust the elastic force of the second elastic part 400. The adjustment method refers to the above embodiment and will not be repeated here.

[0087] When adjusting the first elastic part 300 or the second elastic part 400, one end of the first elastic part 300 or the second elastic part 400 is fixed, and the other end of the first elastic part 300 or the second elastic part 400 is driven to move, so as to ensure the uniformity of the elastic force change of the first elastic part 300 or the second elastic part 400, and avoid that when the two ends of the first elastic part 300 or the second elastic part 400 move at the same time, the elastic force change of the first elastic part 300 or the second elastic part 400 is not obvious, which affects the variation range of the preload force between the fixed bracket 100 and the adjustment bracket 200.

[0088] In some embodiments, reference Figures 1 to 4 The inner side wall of the first connecting groove 110 is provided with a first sliding groove 111, the first connecting member 310 is placed in the first sliding groove 111, the first driving member 500 drives the first connecting member 310 to move in the first sliding groove 111, the inner side wall of the third connecting groove 120 is provided with a third sliding groove 121, the third connecting member 410 is placed in the third sliding groove 121, and the second driving member 600 drives the third connecting member 410 to move in the third sliding groove 121.

[0089] Alternatively, the inner side wall of the second connecting groove 210 is provided with a second slide groove 211, the second connecting member 320 is placed in the second slide groove 211, the first driving member 500 drives the second connecting member 320 to move in the second slide groove 211, the inner side wall of the fourth connecting groove 220 is provided with a fourth slide groove 221, the fourth connecting member 420 is placed in the fourth slide groove 221, and the second driving member 600 drives the fourth connecting member 420 to move in the fourth slide groove 221.

[0090] Specifically, in the present embodiment, during the process of the first driving member 500 driving the first connecting member 310 to move in the first slide groove 111 (or during the process of the first driving member 500 driving the second connecting member 320 to move in the second slide groove 211), the first slide groove 111 can guide the first connecting member 310 (or the second slide groove 211 can guide the second connecting member 320), preventing the first connecting member 310 from deflecting during the movement (or preventing the second connecting member 320 from deflecting during the movement), thereby improving the stability of the first elastic part 300 when the elastic force changes.

[0091] Similarly, during the process of the second driving member 600 driving the third connecting member 410 to move in the third slide groove 121 (or during the process of the second driving member 600 driving the fourth connecting member 420 to move in the fourth slide groove 221), the third slide groove 121 can guide the third connecting member 410 (or the fourth slide groove 221 can guide the fourth connecting member 420) to prevent the third connecting member 410 from deflecting during the movement (or prevent the fourth connecting member 420 from deflecting during the movement), thereby improving the stability of the second elastic part 400 when the elastic force changes.

[0092] In some embodiments, reference Figures 1 to 4 , the fixed bracket 100 has a first direction X and a second direction Y that are perpendicular to each other. Exemplarily, for example, the first direction X can be a horizontal horizontal direction, and the second direction Y can be a vertical longitudinal direction. Along the first direction X, the adjustment bracket 200 is provided with a first adjustment member 700, one end of the first adjustment member 700 abuts against the fixed bracket 100, and the first adjustment member 700 is configured to adjust the inclination angle of the fixed bracket 100 in the first direction X. Along the second direction Y, the adjustment bracket 200 is provided with a second adjustment member 800, one end of the second adjustment member 800 abuts against the fixed bracket 100, and the second adjustment member 800 is configured to adjust the inclination angle of the fixed bracket 100 in the second direction Y. Exemplarily, for example, the first adjustment member 700 and the second adjustment member 800 can both be adjustment nuts.

[0093] Specifically, in this embodiment, when the first adjusting member 700 is adjusted alone, the first adjusting member 700 drives the fixed bracket 100 to move in the first direction X toward or away from the adjusting bracket 200, so that the fixed bracket 100 is deflected in the first direction X after receiving the force, and the fixed bracket 100 is not subjected to the driving force in the second direction Y, so the fixed bracket 100 will not deflect in the second direction Y. Therefore, the first adjusting member 700 can adjust the inclination angle of the fixed bracket 100 in the first direction X, so as to change the test conditions of the optical element and improve the test range of the optical adjustment frame 10.

[0094] When the second adjusting member 800 is adjusted alone, the second adjusting member 800 drives the fixed bracket 100 to move in the second direction Y toward or away from the adjusting bracket 200, so that the fixed bracket 100 is deflected in the second direction Y after receiving the force, while the fixed bracket 100 is not subjected to the driving force in the first direction X, so the fixed bracket 100 will not deflect in the first direction X. Therefore, the second adjusting member 800 can adjust the inclination angle of the fixed bracket 100 in the second direction Y, so as to change the test conditions of the optical element and increase the test range of the optical adjustment frame 10.

[0095] When the first adjusting member 700 and the second adjusting member 800 are adjusted at the same time, the first adjusting member 700 will drive the fixed bracket 100 to move in the direction close to or away from the adjusting bracket 200 along the first direction X, while the second adjusting member 800 will drive the fixed bracket 100 to move in the direction close to or away from the adjusting bracket 200 along the second direction Y, that is, the fixed bracket 100 will be subject to driving force in both the first direction X and the second direction Y. Since the first direction X and the second direction Y are perpendicular and intersecting to each other, according to the principle that "two intersecting straight lines can determine a plane", the fixed bracket 100 is located in the plane determined by the first direction X and the second direction Y, therefore, the fixed bracket 100 can be translated as a whole in the direction close to or away from the adjusting bracket 200, thereby changing the position of the fixed bracket 100, so that the fixed bracket 100 can drive the optical element to move to different target test positions.

[0096] In some embodiments, reference Figures 1 to 4 At the intersection of the first direction X and the second direction Y, the adjusting bracket 200 is provided with a third adjusting member 900 , and one end of the third adjusting member 900 abuts against the fixing bracket 100 .

[0097] Specifically, in this embodiment, when the first adjusting member 700 is adjusted alone, the fixed bracket 100 will use the common straight line of the second adjusting member 800 and the third adjusting member 900 as the rotation axis, and will only deflect in the first direction X, while maintaining stability in the second direction Y. When the second adjusting member 800 is adjusted alone, the fixed bracket 100 will use the common straight line of the first adjusting member 700 and the third adjusting member 900 as the rotation axis, and will only deflect in the second direction Y, while maintaining stability in the first direction X. Through the limiting effect of the third adjusting member 900, the fixed bracket 100 can deflect in a single direction, thereby improving the accuracy of the inclination angle generated by the fixed bracket 100 in a single direction.

[0098] When the fixed bracket 100 is translated as a whole, the first adjustment member 700, the second adjustment member 800 and the third adjustment member 900 can be adjusted simultaneously, so that the first adjustment member 700, the second adjustment member 800 and the third adjustment member 900 simultaneously drive the fixed bracket 100 to move toward or away from the adjustment bracket 200, thereby improving the position accuracy of the fixed bracket 100 during translation.

[0099] In some embodiments, reference Figures 1 to 4The adjustment bracket 200 is provided with a first plugging slot 230 and a second plugging slot 240, the first adjustment member 700 is plugged into the first plugging slot 230, and the second adjustment member 800 is plugged into the second plugging slot 240. The first plugging slot 230 is provided with a first locking member 1000, and the first locking member 1000 is configured to adjust the locking or loosening of the first adjustment member 700 in the first plugging slot 230; the second plugging slot 240 is provided with a second locking member 1100, and the second locking member 1100 is configured to adjust the locking or loosening of the second adjustment member 800 in the second plugging slot 240.

[0100] Specifically, in this embodiment, when coarsely adjusting the fixed bracket 100, the first locking member 1000 is loosened (or the second locking member 1100 is loosened) so that there is a larger adjustment gap between the first adjustment member 700 and the first plug-in slot 230 (or a larger adjustment gap between the second adjustment member 800 and the second plug-in slot 240), and the adjustment resistance of the first adjustment member 700 is reduced (or the adjustment resistance of the second adjustment member 800 is reduced). At this time, in conjunction with the second elastic portion 400 (the second elastic portion 400 allows a smaller pre-tightening force between the fixed bracket 100 and the adjustment bracket 200), the first adjustment member 700 (or the second adjustment member 800) can adjust the fixed bracket 100 over a large range and a large stroke, so that the fixed bracket 100 drives the optical element to move quickly to the vicinity of the target position, thereby improving the adjustment speed of the fixed bracket 100.

[0101] It should be noted that when the fixed bracket 100 is roughly adjusted along the first direction X, only the first locking member 1000 is loosened to facilitate the adjustment of the first adjustment member 700. At this time, the second adjustment member 800 can provide a supporting force for the fixed bracket 100, which is conducive to maintaining the stability of the fixed bracket 100 during adjustment and preventing the fixed bracket 100 from shaking during adjustment. When the fixed bracket 100 is roughly adjusted along the second direction Y, only the second locking member 1100 is loosened to facilitate the adjustment of the second adjustment member 800. At this time, the first adjustment member 700 can provide a supporting force for the fixed bracket 100, which is conducive to maintaining the stability of the fixed bracket 100 during adjustment and preventing the fixed bracket 100 from shaking during adjustment. When the fixed bracket 100 is adjusted as a whole, the first locking member 1000 and the second locking member 1100 are loosened to facilitate the adjustment of the first adjustment member 700 and the second adjustment member 800.

[0102] When fine-tuning the fixed bracket 100, slightly tighten the first locking member 1000 (or slightly tighten the second locking member 1100) to allow a smaller adjustment gap between the first adjusting member 700 and the first plug-in slot 230 (or allow a smaller adjustment gap between the second adjusting member 800 and the second plug-in slot 240), increase the adjustment resistance of the first adjusting member 700 (or increase the adjustment resistance of the second adjusting member 800), and at this time cooperate with the first elastic part 300 and the second elastic part 400 (the first elastic part 300 and the second elastic part 400 allow the fixed bracket 100 and the adjustment The first adjusting member 700 has a large pre-tightening force between the fixed brackets 200), which can reduce the adjustment flexibility of the first adjusting member 700 on the fixed bracket 100 (or can reduce the adjustment flexibility of the second adjusting member 800 on the fixed bracket 100), and the operator can better control the adjustment force to achieve small-range and small-stroke adjustment of the fixed bracket 100, so that the fixed bracket 100 drives the optical element to gradually move to the target position, preventing the fixed bracket 100 from over-traveling due to excessive force, thereby reducing the number of repeated adjustments to the fixed bracket 100 and improving the adjustment accuracy of the fixed bracket 100.

[0103] When the fixed bracket 100 is adjusted to reach the target position, tighten the first locking member 1000 (or tighten the second locking member 1100) so that the first adjustment member 700 is completely clamped in the first plug-in slot 230 (or the second adjustment member 800 is completely clamped in the second plug-in slot 240), thereby improving the positioning stability of the fixed bracket 100 and preventing the fixed bracket 100 from being offset due to vibration.

[0104] In some embodiments, reference Figures 1 to 4 , along the first direction X, at least one first elastic portion 300 and one second elastic portion 400 are disposed between the fixing bracket 100 and the adjusting bracket 200, and the first elastic portion 300 is disposed on a side close to the first adjusting member 700. Along the second direction Y, at least one first elastic portion 300 and one second elastic portion 400 are disposed between the fixing bracket 100 and the adjusting bracket 200, and the first elastic portion 300 is disposed on a side close to the second adjusting member 800.

[0105] Specifically, in the present embodiment, the fixing bracket 100 is driven by the first elastic part 300 and the second elastic part 400 in both the first direction X and the second direction Y, so that the preload force between the fixing bracket 100 and the adjusting bracket 200 can be evenly distributed, thereby ensuring the force stability of the fixing bracket 100. Since the inclination angle of the fixing bracket 100 or the movement of the fixing bracket 100 is adjusted mainly by the first adjusting member 700 and the second adjusting member 800, the first elastic part 300 with higher rigidity is arranged close to the first adjusting member 700 and the second adjusting member 800, which can more effectively limit the flexibility of the first adjusting member 700 and the second adjusting member 800 when fine-tuning the fixing bracket 100, thereby ensuring that the operator can better control the adjustment force, preventing the fixing bracket 100 from over-travel due to excessive force, and simplifying the adjustment process of the fixing bracket 100.

[0106] In some embodiments, the adjustment bracket 200 is provided with scale lines (not shown in the figure). The adjustment bracket 200 can be a structure made of a transparent material to facilitate identification of the scale lines. Exemplarily, for example, the adjustment bracket 200 can be a structure made of transparent plastic, or the adjustment bracket 200 can also be a structure made of transparent glass.

[0107] Specifically, in this embodiment, the adjustment strokes of the first adjustment member 700 and the second adjustment member 800 can be intuitively determined through the scale lines, thereby improving the position adjustment accuracy of the first adjustment member 700 and the second adjustment member 800 on the fixed bracket 100. In particular, when the fixed bracket 100 is adjusted as a whole, the scale lines can be used to ensure that the first adjustment member 700 and the second adjustment member 800 have the same adjustment stroke, thereby effectively ensuring the verticality of the fixed bracket 100.

[0108] It should be noted that, in the present application, the first connector 310, the second connector 320, the third connector 410 and the fourth connector 420 are arranged at a certain angle, that is, the first connector 310, the second connector 320, the third connector 410 and the fourth connector 420 are not all arranged in parallel. Figure 1 and Figure 2 The first connecting member 310, the second connecting member 320, the third connecting member 410 and the fourth connecting member 420 can be respectively arranged in a horizontal state, or can also be arranged in a vertical state, or can also be arranged in an inclined state. With the above structure, the connection stability between the fixed bracket 100 and the adjustable bracket 200 can be ensured, and the fixed bracket 100 and the adjustable bracket 200 can be prevented from relative movement.

[0109] Correspondingly, another embodiment of the present invention further provides an optical testing device, which includes the optical adjustment frame 10 in any of the above embodiments. The optical testing device also includes a mounting frame. Among them, the adjustment bracket 200 of the optical adjustment frame 10 is provided with a mounting hole, and the optical adjustment frame 10 is connected to the mounting frame through a mounting member penetrating the mounting hole. Exemplarily, for example, the mounting member can be a bolt, that is, the optical adjustment frame 10 is connected to the mounting frame through the bolt penetrating the mounting hole, thereby facilitating the installation and disassembly between the optical adjustment frame 10 and the mounting frame.

[0110] Specifically, in this embodiment, the optical testing device using the optical adjustment frame 10 described above can easily control the adjustment accuracy of the optical adjustment frame 10 , thereby facilitating improving the adjustment efficiency of the optical adjustment frame 10 .

[0111] Correspondingly, another embodiment of the present invention further provides an adjustment method for the optical adjustment frame 10, referring to Figure 5 The adjustment method is used to adjust the optical adjustment frame in any of the above embodiments, and the adjustment method includes the following steps:

[0112] Step S100: coarsely adjust the optical adjustment frame 10 so that the compression amount of the first elastic part 300 is small, the compression amount of the second elastic part 400 is moderate, the preload force between the fixed bracket 100 and the adjustable bracket 200 is small, and a wide range of adjustment of the fixed bracket 100 is achieved.

[0113] Specifically, in this step, the rigidity of the first elastic part 300 is 3 to 5 times the rigidity of the second elastic part 400. Coarse adjustment refers to a step of 0.05 mm to 0.3 mm (including the end value).

[0114] Step S200: After the coarse adjustment is completed, the optical adjustment frame 10 is finely adjusted, and the compression amount of the first elastic part 300 is increased while the compression amount of the second elastic part 400 is finely adjusted to increase the preload force between the fixed bracket 100 and the adjustment bracket 200 to a state with a large preload force. The optical adjustment frame 10 is adjusted smoothly and the fixed bracket 100 is placed in a state with a small floating force through the supplementary adjustment of the small stiffness of the second elastic part 400, so that the small range adjustment of the fixed bracket 100 is achieved.

[0115] Specifically, in this step, fine adjustment refers to a position step of 0.003 mm-0.01 mm (including the end values).

[0116] In this embodiment, by locking and loosening the first elastic part 300 and the second elastic part 400 with different stiffnesses, the optical adjustment frame 10 has rapidity and stability in coarse adjustment and has precision and stability in fine adjustment, thereby solving the problems of high adjustment difficulty, poor adjustment accuracy and complicated adjustment process faced by the existing optical adjustment frame 10.

[0117] It should be noted that in order to further improve the adjustment accuracy of the optical adjustment frame 10, the above adjustment method can also be coarse adjustment of the optical adjustment frame 10-semi-fine adjustment of the optical adjustment frame 10-fine adjustment of the optical adjustment frame 10, so that the optical adjustment frame 10 gradually approaches and reaches the target test position.

[0118] Thanks to the improvement of the optical adjustment frame 10 , the optical testing device and the adjustment method of the optical adjustment frame 10 of this embodiment have the same technical effects as the optical adjustment frame 10 , which will not be described in detail here.

[0119] It should be noted that other contents of the optical adjustment frame 10, the optical testing device and the adjustment method of the optical adjustment frame 10 disclosed in the present invention can be referred to the prior art and will not be described in detail here.

[0120] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An optical adjustment stand, characterized in that: include: A fixing bracket, wherein the fixing bracket is used to install the optical element; An adjusting bracket, wherein the adjusting bracket is provided with a first driving member and a second driving member; a first elastic portion, one end of the first elastic portion is connected to the fixing bracket, the other end of the first elastic portion is connected to the adjusting bracket, the first elastic portion is driven by the first driving member, and the first driving member is configured to adjust the compression or extension state of the first elastic portion; a second elastic portion, one end of the second elastic portion is connected to the fixing bracket, the other end of the second elastic portion is connected to the adjusting bracket, the second elastic portion is driven by the second driving member, and the second driving member is configured to adjust the compression or extension state of the second elastic portion; Wherein, the stiffness of the first elastic part is greater than the stiffness of the second elastic part.

2. The optical adjustment stand according to claim 1, characterized in that: The fixing bracket is provided with a first connecting groove at the first elastic part and a third connecting groove at the second elastic part, and the adjusting bracket is provided with a second connecting groove at the first elastic part and a fourth connecting groove at the second elastic part; One end of the first elastic part close to the fixing bracket is connected to a first connecting member, and one end of the first elastic part close to the adjusting bracket is connected to a second connecting member, the first connecting member is placed in the first connecting groove, and the second connecting member is placed in the second connecting groove; The end of the second elastic part close to the fixed bracket is connected to the third connecting member, the end of the second elastic part close to the adjustable bracket is connected to the fourth connecting member, the third connecting member is placed in the third connecting groove, and the fourth connecting member is placed in the fourth connecting groove; The first driving member is connected to the first connecting member and is used to drive the first connecting member to move in the first connecting groove, and the second driving member is connected to the third connecting member and is used to drive the third connecting member to move in the third connecting groove; or, The first driving member is connected to the second connecting member and is used to drive the second connecting member to move in the second connecting groove. The second driving member is connected to the fourth connecting member and is used to drive the fourth connecting member to move in the fourth connecting groove.

3. The optical adjustment stand according to claim 2, characterized in that: The inner side wall of the first connecting groove is provided with a first sliding groove, the first connecting member is placed in the first sliding groove, the first driving member drives the first connecting member to move in the first sliding groove, the inner side wall of the third connecting groove is provided with a third sliding groove, the third connecting member is placed in the third sliding groove, and the second driving member drives the third connecting member to move in the third sliding groove; or, The inner side wall of the second connecting groove is provided with a second sliding groove, the second connecting member is placed in the second sliding groove, the first driving member drives the second connecting member to move in the second sliding groove, the inner side wall of the fourth connecting groove is provided with a fourth sliding groove, the fourth connecting member is placed in the fourth sliding groove, and the second driving member drives the fourth connecting member to move in the fourth sliding groove.

4. The optical adjustment stand according to claim 1, characterized in that: The fixing bracket has a first direction and a second direction that are perpendicular to each other; Along the first direction, the adjustment bracket is provided with a first adjustment member, one end of the first adjustment member abuts against the fixed bracket, and the first adjustment member is configured to adjust the inclination angle of the fixed bracket in the first direction; Along the second direction, the adjustment bracket is provided with a second adjustment member, one end of the second adjustment member is abutted against the fixed bracket, and the second adjustment member is configured to adjust the inclination angle of the fixed bracket in the second direction.

5. The optical adjustment stand according to claim 4, characterized in that: The adjusting bracket is provided with a third adjusting member at the intersection of the first direction and the second direction, and one end of the third adjusting member abuts against the fixing bracket.

6. The optical adjustment stand according to claim 4, characterized in that: The adjustment bracket is provided with a first plugging slot and a second plugging slot, the first adjustment member is plugged into the first plugging slot, and the second adjustment member is plugged into the second plugging slot; Among them, the first plug-in slot is provided with a first locking member, and the first locking member is configured to adjust the locking or loosening of the first adjusting member in the first plug-in slot; the second plug-in slot is provided with a second locking member, and the second locking member is configured to adjust the locking or loosening of the second adjusting member in the second plug-in slot.

7. The optical adjustment stand according to claim 4, characterized in that: Along the first direction, at least one first elastic portion and one second elastic portion are disposed between the fixing bracket and the adjusting bracket, and the first elastic portion is disposed on a side close to the first adjusting member; Along the second direction, at least one first elastic portion and one second elastic portion are disposed between the fixing bracket and the adjusting bracket, and the first elastic portion is disposed on a side close to the second adjusting member.

8. The optical adjustment stand according to claim 1, wherein: The adjustment bracket is provided with scale lines.

9. An optical testing device, characterized in that include: The optical adjustment frame according to any one of claims 1 to 8, wherein the adjustment bracket of the optical adjustment frame is provided with a mounting hole; The optical adjustment frame is connected to the mounting frame via a mounting piece passing through the mounting hole.

10. A method for adjusting an optical adjustment frame, characterized in that: The adjustment method is used to adjust the optical adjustment frame according to any one of claims 1 to 8, comprising: Coarsely adjusting the optical adjustment frame so that the compression amount of the first elastic part is small, the compression amount of the second elastic part is moderate, the preload force between the fixed bracket and the adjustment bracket is small, and a wide range of adjustment of the fixed bracket is achieved; After the coarse adjustment is completed, the optical adjustment frame is finely adjusted, and the compression amount of the first elastic part is increased while the compression amount of the second elastic part is finely adjusted to increase the preload force between the fixed bracket and the adjustment bracket to a state with a large preload force. Through the supplementary adjustment of the small stiffness of the second elastic part, the optical adjustment frame can be adjusted smoothly and the fixed bracket is in a state with a small floating force, thereby realizing a small range adjustment of the fixed bracket.

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