Support devices and optical equipment

Abstract

The present invention discloses a support device and an optical device, and relates to the technical field of optical elements, wherein the support device comprises a support frame, a positioning component and a flexible support assembly, the support frame is provided with a cavity, and the cavity is used to accommodate a cylindrical lens; the positioning component is arranged on the inner wall of the cavity, and the positioning component is used to provide rigid support and position the cylindrical lens; the flexible support assembly comprises two flexible support components, and the two flexible support components are respectively arranged on two inner walls of the cavity extending along the length direction of the support frame, and are arranged relatively, and the flexible support component comprises a support plate and a flexible support platform formed by cutting, and the support plate and the flexible support platform are connected to each other, and the support plate is used to support the cylindrical lens, and the flexible support platform is connected to the inner wall of the cavity, and the height of the support plate is less than the height of the flexible support platform. In this way, not only the effect of flexible support is achieved, but also the thickness of the flexible support can be greatly reduced, and when multiple cylindrical lenses are closely stacked and arranged, there will be no interference.

Description

Technical Field

[0001] The present invention relates to the technical field of optical elements, and in particular to a supporting device and an optical device. Background Art

[0002] In processes such as laser stripping and laser annealing, a linear laser spot with a very large aspect ratio is required. The width of the linear laser spot is only tens of microns, while the length can reach 700mm or even more than 1m. To produce such a linear laser spot through laser beam shaping, the laser beam needs to pass through three to five tightly stacked large-size, high-aspect-ratio cylindrical lenses. The aspect ratio of these cylindrical lenses is usually 6 times or even more than 10 times, and their support effect has an important influence on the uniformity and quality of the linear spot.

[0003] In the prior art, the supporting device adopts three-point rigid support and three-point flexible support, and is combined with multiple flexible clamping blocks for clamping. However, in such a structure, the flexible support is achieved by stacking up and down two flexible hinges in the x and y directions. This will cause the thickness of the flexible support along the optical axis to increase. When multiple cylindrical lenses are closely stacked and arranged, interference will occur, affecting the stacking placement of multiple cylindrical lenses. Summary of the invention

[0004] The main purpose of the present invention is to provide a support device and an optical device, aiming to solve the technical problem in the prior art that the thickness of the flexible support along the optical axis increases, resulting in interference when multiple cylindrical lenses are closely stacked and arranged.

[0005] To achieve the above object, the supporting device proposed in the present invention is used for supporting a cylindrical lens, comprising:

[0006] A support frame, wherein the support frame is provided with a cavity, and the cavity is used to accommodate the cylindrical lens;

[0007] A positioning component, the positioning component is arranged on the inner wall of the cavity, and the positioning component is used to provide rigid support for the cylindrical lens and to position it;

[0008] A flexible support assembly, wherein the flexible support assembly includes two flexible support components, wherein the two flexible support components are respectively arranged on two inner walls of the cavity extending along the length direction of the support frame and are arranged opposite to each other, wherein the flexible support component includes a support plate and a flexible support platform formed by cutting, wherein the support plate and the flexible support platform are connected to each other, wherein the support plate is used to support the cylindrical lens, wherein the flexible support platform is connected to the inner wall of the cavity, and wherein the height of the support plate is less than the height of the flexible support platform.

[0009] In one embodiment, the flexible support platform includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected to each other and form an angle, one end of the first connecting plate away from the second connecting plate is connected to the inner wall of the cavity, and the support plate is arranged on the second connecting plate; and / or,

[0010] The length of the supporting plate is smaller than the length of the second connecting plate.

[0011] In one embodiment, the flexible support platform includes a third connecting plate and two fourth connecting plates, the two fourth connecting plates are respectively connected to two sides of the third connecting plate, one end of the two fourth connecting plates away from the third connecting plate is connected to the inner wall of the cavity, and the support plate is arranged on the third connecting plate; and / or,

[0012] The length of the supporting plate is smaller than the length of the third connecting plate.

[0013] In one embodiment, there are multiple flexible support components, and the multiple flexible support components are arranged at intervals along the length direction of the support frame.

[0014] In one embodiment, the positioning component includes a first positioning block, a second positioning block and a third positioning block, the first positioning block and the second positioning block are respectively used to abut against two adjacent side walls of the cylindrical lens, and the third positioning block is used to abut against the bottom surface of the cylindrical lens.

[0015] In one embodiment, the cavity includes two oppositely arranged first inner walls and two oppositely arranged second inner walls, the number of the third positioning blocks is three, and the three third positioning blocks form a triangular support structure, wherein one of the third positioning blocks is arranged on one of the first inner walls, and the other two of the third positioning blocks are respectively arranged on two of the second inner walls, and the two third positioning blocks are arranged oppositely; the number of the first positioning blocks is two, the two first positioning blocks are arranged at intervals along the length direction of the support frame, and the two first positioning blocks are both arranged on the other first inner wall.

[0016] In one embodiment, a flexible support platform is disposed between the two first positioning blocks, and the flexible support platform is disposed opposite to the third positioning block disposed on the first inner wall.

[0017] In one embodiment, a plurality of mounting protrusions are provided on the outer side of the support frame, and mounting holes are provided on the mounting protrusions. The support device further comprises a locking member, and the locking member passes through the mounting hole for being installed at the mounting position.

[0018] In one embodiment, the plurality of mounting protrusions are all disposed at the minimum deformation point in the length direction of the support frame.

[0019] The present invention further provides an optical device, comprising the supporting device as described above and a plurality of cylindrical lenses stacked in sequence, wherein the cylindrical lenses are installed in the cavity.

[0020] In the above scheme, the supporting device is used to support the cylindrical lens, including a supporting frame, a positioning component and a flexible supporting assembly. The supporting frame is provided with a cavity, and the cavity is used to accommodate the cylindrical lens; the positioning component is arranged on the inner wall of the cavity, and the positioning component is used to provide rigid support and positioning for the cylindrical lens; the flexible supporting assembly includes two flexible supporting components, and the two flexible supporting components are respectively arranged on two inner walls of the cavity extending along the length direction of the supporting frame, and are arranged opposite to each other. The flexible supporting component includes a supporting plate and a flexible supporting platform formed by cutting, and the supporting plate and the flexible supporting platform are connected to each other. The support plate is used to support the cylindrical lens, and the flexible supporting platform is connected to the inner wall of the cavity, and the height of the support plate is less than the height of the flexible supporting platform. Specifically, when installing a cylindrical lens with a large aspect ratio, the cylindrical lens is placed in a cavity, and the positioning component supports the cylindrical lens, provides rigid support for the cylindrical lens and fixes and positions it, and at the same time, a support plate connected to the flexible support table abuts against the bottom of the cylindrical lens to flexibly support the cylindrical lens. The flexible support table can achieve a degree of freedom decoupling, so that the fixation of the cylindrical lens is more stable, and by setting the support plate to be connected to the flexible support table, not only can the function of flexible support be achieved, but also compared with the two flexible hinges in different directions stacked in the prior art and then directly abutting against the cylindrical lens to support the cylindrical lens, the present invention can achieve a flexible support by a flexible support. A support plate with a height less than that of the flexible support platform is arranged on one side of the platform, which not only achieves the effect of flexible support, but also can greatly reduce the thickness of the flexible support. In this way, when multiple cylindrical lenses are closely stacked and arranged, there will be no interference, and multiple cylindrical lenses can be closely stacked and placed; at the same time, the flexible support component includes two flexible support components, which are respectively arranged on two inner walls of the cavity extending along the length direction of the support frame, and are arranged relatively, so that when the flexible support component supports the cylindrical lens, the pressure can be dispersed more evenly, so that the situation where local stress is too high and the cylindrical lens is excessively deformed or damaged can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 A structural schematic diagram of an embodiment of a supporting device provided by the present invention;

[0023] Figure 2 A top view of an embodiment of a supporting device provided by the present invention;

[0024] Figure 3 A schematic structural diagram of an embodiment of a flexible support component provided by the present invention;

[0025] Figure 4 A schematic structural diagram of another embodiment of the flexible support component provided by the present invention;

[0026] Figure 5 A schematic structural diagram of an optical device according to an embodiment of the present invention.

[0027] Description of Figure Numbers:

[0028] 100. Support device; 1. Support frame; 2. Positioning component; 3. Flexible support assembly; 11. Cavity; 31. Flexible support component; 311. Support plate; 312. Flexible support platform; 312a. First connecting plate; 312b. Second connecting plate; 312c. Third connecting plate; 312d. Fourth connecting plate; 21. First positioning block; 22. Second positioning block; 23. Third positioning block; 12. Mounting bump; 200. Optical device; 201. Cylindrical lens.

[0029] 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

[0030] 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.

[0031] 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.

[0032] 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" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy 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 this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] In processes such as laser stripping and laser annealing, a linear laser spot with a very large aspect ratio is required. The width of the linear laser spot is only tens of microns, while the length can reach 700mm or even more than 1m. To produce such a linear laser spot through laser beam shaping, the laser beam needs to pass through three to five tightly stacked large-size, high-aspect-ratio cylindrical lenses 201. The aspect ratio of these cylindrical lenses 201 is usually 6 times or even more than 10 times, and their support effect has an important influence on the uniformity and quality of the linear spot.

[0034] Generally, the supporting device adopts three-point rigid support and three-point flexible support, and is combined with a plurality of flexible clamping blocks for clamping. However, in such a structure, the flexible support is realized by stacking up and down two flexible hinges in the x and y directions. This will cause the thickness of the flexible support along the optical axis to increase. When a plurality of cylindrical lenses 201 are closely stacked and arranged, interference will occur, affecting the stacking placement of the plurality of cylindrical lenses 201.

[0035] See also Figure 1 and Figure 2The supporting device 100 is used to support the cylindrical lens 201. The supporting device 100 includes a supporting frame 1, a positioning component 2 and a flexible supporting assembly 3. The supporting frame 1 is provided with a cavity 11, and the cavity 11 is used to accommodate the cylindrical lens 201; the positioning component 2 is arranged on the inner wall of the cavity 11, and the positioning component 2 is used to provide rigid support and positioning for the cylindrical lens 201; the flexible supporting assembly 3 includes two flexible supporting components 31, and the two flexible supporting components 31 are respectively arranged on two inner walls of the cavity 11 extending along the length direction of the supporting frame 1, and are arranged opposite to each other. The flexible supporting component 31 includes a supporting plate 311 and a flexible supporting platform 312 formed by cutting. The supporting plate 311 and the flexible supporting platform 312 are connected to each other. The supporting plate 311 is used to support the cylindrical lens 201, and the flexible supporting platform 312 is connected to the inner wall of the cavity 11. The height of the supporting plate 311 is less than the height of the flexible supporting platform 312. Specifically, when installing a cylindrical lens 201 with a large aspect ratio, the cylindrical lens 201 is placed in the cavity 11, so that the positioning component 2 supports the cylindrical lens 201, provides rigid support for the cylindrical lens 201 and fixes and positions it, and at the same time, the support plate 311 connected to the flexible support platform 312 abuts against the bottom of the cylindrical lens 201 to flexibly support the cylindrical lens 201. The flexible support platform 312 can achieve freedom decoupling, so that the fixation of the cylindrical lens 201 is more stable, and by setting the support plate 311 to be connected to the flexible support platform 312, not only can the function of flexible support be achieved, but also compared with the solution of stacking two flexible hinges in different directions and then directly abutting against the cylindrical lens 201 to support the cylindrical lens 201, the present invention In the embodiment, by setting a support plate 311 whose height is less than that of the flexible support platform 312 on one side of the flexible support platform 312, the thickness of the flexible support can be greatly reduced. In this way, when multiple cylindrical lenses 201 are closely stacked and arranged, there will be no interference, and the close stacking of multiple cylindrical lenses 201 can be achieved, and the stacking distance between the cylindrical lenses 201 can be shortened; at the same time, the flexible support component 3 includes two flexible support parts 31, which are respectively arranged on two inner walls of the cavity 11 extending along the length direction of the support frame 1. In this way, when the flexible support component 3 supports the cylindrical lens 201, the pressure can be dispersed more evenly, so that the situation where local stress is too high and the cylindrical lens 201 is excessively deformed or damaged can be avoided.

[0036] The support device 100 of the present invention can be applied to laser stripping and laser annealing equipment. The flexible support platform 312 is directly processed on the support frame 1 by cutting. Compared with the method of welding the flexible support platform 312, the connection strength between the cut flexible support platform 312 and the support frame 1 is higher than the connection strength between the flexible support platform 312 and the support frame 1 after welding. In this way, the connection strength between the flexible support platform 312 and the support frame 1 is greatly improved by cutting, and the service life of the support device 100 is greatly increased.

[0037] See also Figures 1 to 3 In one embodiment, the flexible support platform 312 includes a first connecting plate 312a and a second connecting plate 312b, the first connecting plate 312a and the second connecting plate 312b are connected to each other and form an angle, one end of the first connecting plate 312a away from the second connecting plate 312b is connected to the inner wall of the cavity 11, and the support plate 311 is disposed on the second connecting plate 312b; and / or

[0038] The length of the supporting plate 311 is smaller than the length of the second connecting plate 312 b .

[0039] Specifically, a first connecting plate 312a and a second connecting plate 312b that are interconnected are cut on the support frame 1, and the first connecting plate 312a and the second connecting plate 312b are arranged in an L shape, and the support plate 311 is connected to the second connecting plate 312b, so that the L-shaped flexible support structure realizes the freedom of the support frame 1 in the length direction and the width direction, and only limits the freedom of the support frame 1 in the height direction, thereby providing flexible support for the cylindrical lens 201 to prevent the cylindrical lens 201 from being deformed in the height direction of the support frame 1, and only wire cutting is required along one direction to form the flexible support platform 312, which greatly reduces the manufacturing difficulty; the length of the support plate 311 along the length direction of the support frame 1 is set to be smaller than the length of the second connecting plate 312b along the length direction of the support frame 1, and at the same time, the size of the support plate 311 along the direction perpendicular to the length of the support frame 1, that is, the thickness of the support plate 311, is reduced, so that the light aperture occupied by the support plate 311 can be reduced as much as possible.

[0040] See also Figure 1 , Figure 2 and Figure 4 In one embodiment, the flexible support platform 312 includes a third connecting plate 312c and two fourth connecting plates 312d, the two fourth connecting plates 312d are respectively connected to the two sides of the third connecting plate 312c, one end of the two fourth connecting plates 312d away from the third connecting plate 312c is connected to the inner wall of the cavity 11, and the support plate 311 is arranged on the third connecting plate 312c; and / or

[0041] The length of the supporting plate 311 is smaller than the length of the third connecting plate 312 c .

[0042] Specifically, a third connecting plate 312c and two fourth connecting plates 312d are cut on the support frame 1, and the third connecting plate 312c and the two fourth connecting plates 312d are arranged in a C shape, and the support plate 311 is connected to the third connecting plate 312c. In this embodiment, the C-shaped flexible support structure can be equivalent to two L-shaped flexible support structures, even if the second connecting plates 312b of the two L-shaped flexible support structures are connected to each other at one end away from the first connecting plate 312a, which is equivalent to the third connecting plate 312c. In this way, the role played by the C-shaped flexible support structure in this embodiment is consistent with that played by the L-shaped flexible structure. The C-shaped flexible support structure also realizes the freedom of the support frame 1 in the length direction and the width direction, and only limits the freedom in the height direction of the support frame 1. By the degree, flexible support is provided for the cylindrical lens 201, and deformation of the cylindrical lens 201 in the height direction of the support frame 1 is prevented, and the flexible support platform 312 can be formed by wire cutting only in one direction, which greatly reduces the difficulty of production; and the length of the support plate 311 along the length direction of the support frame 1 is set to be smaller than the length of the second connecting plate 312b along the length direction of the support frame 1, so that the light aperture occupied by the support plate 311 can be reduced as much as possible; at the same time, in this embodiment, since two fourth connecting plates 312d are provided and are connected to the support frame 1, compared with the L-shaped flexible support structure connected to the support frame 1 only through a first connecting plate 312a, the C-shaped flexible support structure in this embodiment has a higher connection strength and can withstand greater pressure.

[0043] Furthermore, the flexible support platforms 312 in the two embodiments described above may be used simultaneously in one support device 100 , or only the L-shaped flexible support in the embodiment described above may be used in one support device 100 , or only the C-shaped flexible support in the embodiment described above may be used in one support device 100 .

[0044] See also Figures 1 to 4 In one embodiment, the number of the flexible support components 3 is multiple, and the multiple flexible support components 3 are arranged at intervals along the length direction of the support frame 1. By arranging multiple flexible support components 3, since the support device 100 in this embodiment is used to support the cylindrical lens 201 with a large aspect ratio, the multiple flexible support components 3 are arranged at intervals along the length direction of the support frame 1, so that the cylindrical lens 201 can be flexibly supported at every section along the length direction, further preventing the cylindrical lens 201 from being deformed too much or damaged.

[0045] Furthermore, the number of flexible support components 3 is appropriately increased according to the length of the cylindrical lens 201 to meet the flexible support requirements of cylindrical lenses 201 of various lengths, ensuring that cylindrical lenses 201 of different lengths will not be significantly deformed or damaged, thereby enabling the support device 100 to adapt to cylindrical lenses 201 of different lengths.

[0046] Furthermore, the smaller the length of the support plate 311 is, the more similar it is to point contact support when the support plate 311 supports the cylindrical lens 201. The cylindrical lens 201 is supported by point contact, and a plurality of flexible support platforms 312 are provided. In this way, the externally applied pressure can be dispersed to a plurality of contact points, that is, dispersed to a plurality of support plates 311. This can further avoid excessive deformation or damage of the cylindrical lens 201 due to excessive local stress.

[0047] See also Figure 1 , Figure 2 as well as Figure 5 In one embodiment, the positioning component 2 includes a first positioning block 21, a second positioning block 22 and a third positioning block 23. The first positioning block 21 and the second positioning block 22 are respectively used to abut against two adjacent side walls of the cylindrical lens 201, and the third positioning block 23 is used to abut against the bottom surface of the cylindrical lens 201. Specifically, when fixing the cylindrical lens 201, the cylindrical lens 201 is installed in the cavity 11, and the bottom of the cylindrical lens 201 abuts against the third positioning block 23, so that the support frame 1 is formed with a limit and rigid support in the height direction. The second positioning block 22 and the first positioning block 21 abut against two adjacent side walls of the cylindrical lens 201, respectively, and the other two adjacent side walls of the cylindrical lens 201 abut against two adjacent inner walls of the cavity 11, respectively, so that the limit and rigid support in the length direction and width direction of the support frame 1 are limited; the rigid support can effectively reduce the influence of external vibration on the cylindrical lens 201 and maintain the stability and reliability of the system.

[0048] See also Figure 1 , Figure 2 as well as Figure 5In one embodiment, the cavity 11 includes two oppositely arranged first inner walls and two oppositely arranged second inner walls, the number of the third positioning blocks 23 is three, and the three third positioning blocks 23 form a triangular support structure, wherein one third positioning block 23 is arranged on a first inner wall, and the other two third positioning blocks 23 are respectively arranged on the two second inner walls, and the two third positioning blocks 23 are arranged opposite to each other; the number of the first positioning blocks 21 is two, the two first positioning blocks 21 are arranged at intervals along the length direction of the support frame 1, and the two first positioning blocks 21 are both arranged on the other first inner wall. The three third positioning blocks 23 form a triangular support structure for rigidly supporting the cylindrical lens 201. The three third positioning blocks 23 are arranged in a triangle. Since three points determine a plane, three degrees of freedom can be limited. Since the support device 100 of this embodiment is used to support a cylindrical lens 201 with a large aspect ratio, the length of the cylindrical lens 201 is relatively long. In this embodiment, the number of first positioning blocks 21 is set to 2, which does not change with the length of the cylindrical lens 201. In this embodiment, by using three third positioning blocks 23, two first positioning blocks 21 and one second positioning block 22 for rigid support, it conforms to the six-point positioning principle. Through the six-point positioning, the six degrees of freedom of the cylindrical lens 201 are completely limited, which is convenient for ensuring the relative position of each other when assembling with other components in the optical path, thereby maintaining its optical performance. The six supporting points provide sufficient support, so that the cylindrical lens 201 can remain stable under various working conditions and is not easily affected by external vibration or impact. Compared with the full-contact support device 100, the six-point positioning reduces the contact area between the cylindrical lens 201 and the support device 100, and reduces the over-positioning caused by avoiding excessive contact area.

[0049] See also Figure 1 , Figure 2 as well as Figure 5 In one embodiment, a flexible support platform 312 is provided between the two first positioning blocks 21, and the flexible support platform 312 is provided opposite to the third positioning block 23 provided on the first inner wall. The flexible support platform 312 is provided at a position opposite to the third positioning block 23 provided on the first inner wall, so that when supporting the cylindrical lens 201, the forces on both sides of the cylindrical lens 201 can be balanced, so that the cylindrical lens 201 can be prevented from being deformed too much or damaged due to the force on one side.

[0050] See also Figure 1 , Figure 2 as well as Figure 5 In one embodiment, a plurality of mounting protrusions 12 are provided on the outer side of the support frame 1, and mounting holes are provided on the mounting protrusions 12. The support device 100 further includes a locking member, which passes through the mounting holes and is installed at the mounting position. By providing the above structure, the operator can realize the rapid installation and removal of the support device 100 through the locking member.

[0051] See also Figure 1 , Figure 2 as well as Figure 5 In one embodiment, a plurality of mounting protrusions 12 are disposed at the minimum deformation point in the length direction of the support frame 1. The mounting boss is located at the minimum deformation point in the length direction of the support frame 1. The minimum deformation point is the support point where the deformation of both ends of the support frame 1 is consistent with the deformation of the midpoint when the support frame 1 is simply supported at two points. At this time, the overall deformation of the support frame 1 is minimal. When the homogeneous beam is simplified to two dimensions, the minimum deformation point is when the two support points are 0.2232 times the total length away from the end points. Due to the uneven distribution of the structure, the density differences of different materials, etc., the actual mounting boss should be around 0.2232 of the total length. After simple optimization, the actual minimum deformation point can be obtained; by setting it at the minimum deformation point, when the support device 100 is installed, the deformation of the support device 100 can be minimized to the greatest extent, and the influence of the deformation of the support frame 1 on the use of the cylindrical lens 201 can be reduced.

[0052] In the first embodiment, the flexible support platform 312 includes a third connecting plate 312c and two fourth connecting plates 312d, forming a C-shaped flexible support; the flexible support platform 312 includes a first connecting plate 312a and a second connecting plate 312b, forming an L-shaped flexible support. The cylindrical lens 201 has a size of 850mm×120mm, a thickness of 25mm, an aspect ratio of 7, a total length of the support device 100 of 920mm, and a distance of 204mm from the short sides of the four mounting bosses, that is, the minimum deformation point is near 0.2232 times the total length, which can minimize the deformation of the support device 100. The size of the three third positioning blocks 23, the support plates 311 of the four L-shaped flexible supports, and the support plate 311 of the one C-shaped flexible support intruding into the bottom surface of the cylindrical lens 201 is 5mm. In other words, except for the 5mm area at the edge of the bottom surface of the cylindrical lens 201, the rest of the area can be used for light transmission, and the light transmission area is large. The flexible support structure of the support device 100 can be processed by wire cutting from the height direction, and the processing is simple. The thickness of the third positioning block 23, the support plate 311 of the C-type flexible support and the support plate 311 of the L-type flexible support at the bottom of the cylindrical lens 201 are all 5 mm, which makes the height of the flexible support small, which is beneficial to reduce the air gap when multiple cylindrical lenses 201 are closely stacked.

[0053] In the second embodiment, the cylindrical lens 201 has a size of 1100 mm×110 mm, a thickness of 25 mm, and an aspect ratio of 10. When the aspect ratio of the cylindrical lens 201 is too large or the total length of the cylindrical lens 201 is too long, the number of flexible supports can be appropriately increased. Therefore, in this embodiment, the number of L-shaped flexible supports is increased to eight. Similar to the first embodiment, the second embodiment also has the advantages of simple processing, large light-transmitting area, small height, and small deformation of the cylindrical lens 201.

[0054] See also Figure 5The present invention further provides an optical device 200, which includes the above-mentioned supporting device 100 and a plurality of cylindrical lenses 201 stacked in sequence, and the cylindrical lenses 201 are installed in the cavity 11. Since the optical device 200 includes all implementations of all embodiments of the above-mentioned supporting device 100, it has at least all the beneficial effects brought by all the above-mentioned implementations, which will not be described one by one here.

[0055] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A supporting device for supporting a cylindrical lens, characterized in that: include: A support frame, wherein the support frame is provided with a cavity, and the cavity is used to accommodate the cylindrical lens; A positioning component, the positioning component includes a first positioning block, a second positioning block and a third positioning block, the first positioning block and the second positioning block are respectively used to abut against two adjacent side walls of the cylindrical lens, the third positioning block is used to abut against the bottom surface of the cylindrical lens, the cavity includes two oppositely arranged first inner walls and two oppositely arranged second inner walls, the number of the third positioning blocks is three, and the three third positioning blocks form a triangular support structure, wherein one of the third positioning blocks is arranged on one of the first inner walls, and the other two of the third positioning blocks are respectively arranged on two of the second inner walls, and the two third positioning blocks are arranged oppositely; the number of the first positioning blocks is two, the two first positioning blocks are arranged at intervals along the length direction of the support frame, and the two first positioning blocks are both arranged on the other first inner wall, and the number of the second positioning block is one; the three third positioning blocks, the two first positioning blocks and the one second positioning block are used for the rigid support of the cylindrical lens through six-point positioning; A flexible support assembly, wherein the flexible support assembly comprises two flexible support components, the two flexible support components are respectively arranged on two inner walls of the cavity extending along the length direction of the support frame, and are arranged opposite to each other, the flexible support component comprises a support plate and a flexible support platform formed by cutting, the support plate and the flexible support platform are connected to each other, the support plate is used to support the cylindrical lens, and the height of the support plate is less than the height of the flexible support platform; The flexible support platform includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected to each other and form an angle, one end of the first connecting plate away from the second connecting plate is connected to the inner wall of the cavity, the support plate is arranged on the second connecting plate, and the length of the support plate is less than the length of the second connecting plate; or, The flexible support platform includes a third connecting plate and two fourth connecting plates, the two fourth connecting plates are respectively connected to the two sides of the third connecting plate, and the ends of the two fourth connecting plates away from the third connecting plate are connected to the inner wall of the cavity. The support plate is arranged on the third connecting plate, and the length of the support plate is less than the length of the third connecting plate.

2. The support device according to claim 1, characterized in that: There are multiple flexible support components, and the multiple flexible support components are arranged at intervals along the length direction of the support frame.

3. The supporting device according to claim 1, characterized in that: A flexible support platform is arranged between the two first positioning blocks, and the flexible support platform is arranged opposite to the third positioning block arranged on the first inner wall.

4. The support device according to claim 1, characterized in that: A plurality of mounting protrusions are arranged on the outer side of the support frame, and mounting holes are arranged on the mounting protrusions. The support device also includes a locking member, and the locking member passes through the mounting hole for being installed at the mounting position.

5. The supporting device according to claim 4, characterized in that: The plurality of mounting protrusions are all arranged at the minimum deformation point in the length direction of the support frame.

6. An optical device, characterized in that: The optical device comprises the supporting device according to any one of claims 1 to 5 and a plurality of cylindrical lenses stacked in sequence, wherein the cylindrical lenses are installed in the cavity.

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