Positioning block, optical positioning system and method based on positioning block, as well as functional module

Abstract

To facilitate reconfiguration by quickly constructing and positioning an optical functional unit in an optical path.SOLUTION: A positioning system comprises one upper horizontal bottom plate, at least one support member including a straight positioning side, and a plurality of positioning blocks for mounting and positioning optical units, where the bottom plate may further include a movable placement plate. A bottom of a positioning block is brought into close contact with the bottom plate or the placement plate so as to achieve vertical positioning, and the side of the positioning block is brought into close contact with the positioning side of the supporting member so as to achieve horizontal positioning. The optical units are mounted on the positioning blocks at desired positions on the basis of different optical path designs, and central points of all the optical function units are located at the same height through a connection structure. A light-emitting unit is mechanically adjusted such that the emitted light is parallel to a side surface and a bottom surface of the positioning block and central points of other optical units coincide with the height of the emitted light.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention belongs to the field of optical technology, and relates to a positioning system and method for each optical functional unit in an optical path, and particularly to an optical positioning system and method based on a positioning block and a functional module.

Background Art

[0002] Currently, in the laboratory, when constructing an optical system, it is necessary to use a multi- dimensional adjustment frame to adjust the optical path of the system. In some complex optical systems, a large amount of work is required for optical path construction. In addition, since the degree of freedom of the optical path is too high, the system has almost no reproducibility, and it is necessary to readjust the system every time the optical path structure changes. As a result, a lot of time and labor are wasted. To overcome the drawbacks of the prior art, the present invention provides a positioning block, an optical positioning system and method using the positioning block, and its positioning block and functional module, which can quickly realize the construction and positioning of the optical functional units in the optical

Summary of the Invention

[0003] The following describes the specific contents of the positioning block, the optical positioning system and method based on the positioning block, and the functional module of the present

Means for Solving the Problems

[0004] I. The positioning block of the present invention

[0005] The positioning block of the present invention includes a bottom surface, an upper surface on which an optical unit can be mounted, and at least one two positioning side surfaces.

[0006] Furthermore, the positioning block has two positioning side surfaces perpendicular to each other.

[0007] Furthermore, the positioning block has a block structure (square block structure) and has four positioning side surfaces perpendicular to the bottom surface. The horizontal cross-section of the positioning block is rectangular, and it may be a rectangle of the same size or may be a modular design. The so-called modular design means that a square with the smallest side length in the plane is used as the basic cell, and a rectangle or square with a length or width that is an integer multiple of the smallest side length can be designed. For example, the basic cell is 1×1 and other blocks by modular design may be 1×2, 1×3, 2×2. The block of the present invention is not a geometrically precise hexahedron and may have chamfers or smooth transitions at each corner. Therefore, it may be expressed as a prism (for example, when chamfering is applied to four side positions, it becomes an octagonal prism geometrically), but if there are four side surfaces perpendicular to each other , it corresponds to the block described in the present invention, and its horizontal cross-section is considered to be rectangular. In the present invention, the positioning block with a block structure may be referred to as a positioning block and may also be abbreviated as a block. In a preferred form, a magnet is embedded in the bottom surface of the positioning block. In a preferred form, a magnet is embedded in the positioning side surface of the positioning block.

[0008]

[0009]

[0010] ​​In a preferred form, the positioning block with a block structure uses a magnetic material, and magnets are embedded in four positioning side faces. Furthermore, magnets are embedded in the four positioning side faces. The positions are shifted uniformly to the left or right while avoiding the middle position, and the polarities in which each magnet is embedded are the same.

[0011] II. Optical positioning system based on the positioning block of the present invention

[0012] It includes a bottom plate with one horizontal upper surface, at least one support member, and a plurality of (at least two) positioning blocks for mounting and positioning an optical function unit. The bottom plate is a mounting platform for the optical system, that is, a horizontal reference plane of the optical system, and provides an initial positioning in the vertical direction (Z direction). The support member and the bottom plate are of an integral structure or a split structure. The support member has at least one straight positioning side and provides an initial horizontal positioning for the positioning block. The bottom surface of the positioning block can be in close contact with the upper surface of the bottom plate, and the positioning side surface of the positioning block can be in close contact with the positioning side of the support member. The topmost part of the positioning block can mount the optical unit. In the present invention, the bottom plate and the support member are collectively referred to as a positioning disk. When the constructed optical system extends only in one direction (X direction) on a horizontal plane, in the present invention, the optical axes of the optical units in different positioning blocks may be installed such that they are parallel to the positioning side surface and have the same distance. In this way, when the positioning side surfaces of different positioning blocks are in close contact with the positioning side of the support member, it can be ensured that the optical axes of the optical units in different positioning blocks are in the same vertical plane. If necessary for the optical path,

[0013] ​​​​​​​​​​​​ Furthermore, when the optical axis of the optical unit is installed such that it has the same height and is parallel to the bottom surface of the positioning block, the optical axes of the optical units in different positioning blocks lie on the same horizontal straight line.

[0014] In some optical paths, the optical unit needs to be positioned in two perpendicular directions (X direction and Y direction) of a plane. In this case, the present invention provides a support member having two positioning sides (X direction and Y direction) perpendicular to each other. The support member may be of a single structure or may be two support members perpendicular to each other. The positioning block may have two positioning sides perpendicular to each other. One positioning side is parallel to the optical axis, and the other positioning side is perpendicular to the optical axis. Thereby, when the positioning sides of different positioning blocks are in close contact with the X-direction positioning side and the Y-direction positioning side of the support member respectively, positioning in the X direction and the Y direction can be realized.

[0015] What is realized by the positioning block in the above technical solution is the directional positioning of the optical path, and the distance between different positioning blocks is adjusted by sliding the positioning block along the support member. Thereby, the distance between the optical units can be changed without changing the optical path direction.

[0016] In some cases, not only positioning in the X direction and the Y direction is required, but also accurate distance positioning in these two directions needs to be realized. This need may be realized by adopting a positioning block with a block structure, and such a positioning block may be referred to as a positioning square block. The bottom surface of each positioning square block can be in close contact with the bottom plate. ​​​​​​​​​​​ The side surface of the block is perpendicular to the bottom surface and can be in close contact with the supporting member and the side surfaces of different blocks. An optical function unit can be mounted on the upper surface of all or some of the blocks. The horizontal cross-section of the block is rectangular, and may be a rectangle of the same size or a modular design. In this way, the positioning side of the supporting member provides initial positioning in the X and Y directions, and the positioning blocks are continuously in close contact and extend, enabling accurate distance positioning between the optical units. The distance is strictly an integer multiple of the side length of the basic block cell.

[0017] When the bottom plate and the supporting member cannot be separated, a movable mounting plate can be added to the bottom plate. One side or at least two vertical sides of the mounting plate can be in close contact with the supporting member, and the bottom surface of the block can be in close contact with the upper surface of the mounting plate.

[0018] III. Optical system positioning method based on the positioning block of the present invention

[0019] The bottom plate or the mounting plate is a positioning reference in the vertical direction (Z direction), and the supporting member on the bottom plate is used as a positioning reference in the horizontal direction (X and / or Y directions). Based on different optical path designs, different positioning blocks with or without optical units mounted are brought into close contact with the bottom plate and the supporting member, and the spaces between the positioning blocks are brought into close contact, enabling rapid positioning of the optical path. Depending on whether the plane direction is one-dimensional positioning (single direction) or two-dimensional positioning (perpendicular X and Y directions) and whether accurate distance positioning is required, the method is specifically as follows.

[0020] When only one-dimensional positioning is performed, the positioning side surface of the positioning block is brought into close contact with the corresponding positioning side of the support member. For different positioning blocks, the optical axes of the optical units may be installed such that they are parallel to the positioning side surface and at the same distance. In this way, when the positioning side surfaces of different positioning blocks are in close contact with the positioning side of the support member, it can be ensured that the optical axes of the optical units in different positioning blocks are on the same vertical plane. If necessary for the optical path, the optical axes of the optical units may be further installed such that they are at the same height and parallel to the bottom surface of the positioning block. In this case, the optical axes of the optical units in different positioning blocks are on the same horizontal straight line. By sliding the positioning blocks along the support member, the distance between the optical units can be approximately adjusted. When two-dimensional positioning is required, that is, when the optical unit is positioned in two perpendicular directions (X direction and Y direction) of a plane, a support member with two mutually perpendicular positioning sides (X direction and Y direction) is used. The positioning block can have two mutually perpendicular positioning side surfaces, one of which is parallel to the optical axis and the other is perpendicular to the optical axis. Based on the optical path design, different positioning blocks are brought into close contact with the corresponding positions of the necessary sides in the required directions. In this way, the positioning side surfaces of different positioning blocks are in close contact with the X-direction positioning side and the Y-direction positioning side of the support member respectively, and positioning in the X direction and Y direction can be achieved. By sliding the positioning blocks along the support member, the distance between the optical units can be approximately adjusted.

[0021]

[0022] ​​​​​​​​​​​​Not only requires two-dimensional positioning in the X and Y directions, but also needs to achieve accurate distance positioning in these two directions. If such a need exists, this need can be realized by positioning rectangular blocks. The bottom surface of each positioning rectangular block is in close contact with the bottom plate, and the side surface of the block is perpendicular to the bottom surface and in close contact with the support member and the side surfaces of different blocks. An optical function unit is mounted on the top surface of all or some of the blocks. In this way, the positioning side edge of the support member provides initial positioning in the X and Y directions, and the positioning rectangular blocks are continuously in close contact and extend, so that accurate distance positioning between the optical units is realized, and the distance is exactly an integer multiple of the side length of the basic block cell.

[0023] Taking the above requirement for two-dimensional and accurate distance positioning as an example, the optical positioning method of the present invention will be further described. Based on different optical path designs, an optical function unit is mounted on the block at the desired position. The upper-layer optical function unit is arranged such that the center points of all function units are located at the same height by a connection structure. The light-emitting unit (such as a laser, a collimator, etc. ) is mechanically adjusted so that the emitted light is parallel to one positioning side surface and the bottom surface of the positioning block, and the center points of other optical units coincide with the height of the emitted light. Then, the optical fiber unit is adjusted so that the position and angle of the light do not change after passing through the unit. In this way, the light emitted from one emission unit can smoothly enter the final functional optical unit such as a collimator or a detector after passing through a plurality of optical units. That is, various optical function units are designed such that the light emission position or the incident position of the light with respect to the upper surface of the block is at the same height and the horizontal positions are consistent. According to the requirements of the optical path, optical Place a plurality of blocks equipped with functional units at corresponding positions in the block array on the bottom plate By doing so, almost accurate positioning of the optical system can be achieved. Add a fine adjustment structure to the block, and by finely adjusting the optical functional unit, the alignment and coupling accuracy of the optical units in different blocks can be further improved. Usually, all blocks that are basic cells of the same size can meet the needs. However, blocks of different sizes adopting a modular design can meet more flexible needs and improve the efficiency and accuracy of positioning. For example, when the bottom of the optical functional unit exceeds the size of the basic cell block, a large block can be used, and when the distance between adjacent optical functional units is large, blocks of appropriate specifications can be used. This reduces the number of blocks in the entire optical system, improves the positioning speed, and improves the accuracy.

[0024] Such an optical positioning system and method can arbitrarily replace any block with or without an optical functional unit with other blocks, thereby enabling rapid construction and reconfiguration of the optical path.

[0025] To achieve close contact between the block and the support member, the block and the bottom plate or mounting plate, and between the blocks, it can be closely contacted naturally, but to achieve higher reliability close contact, the following technical solutions can be adopted.

[0026] In one aspect, between the block and the bottom plate or mounting plate, and between the blocks, they are adhered with an adhesive and are closely adhered. ​​​​​​​​

[0027] As another aspect, the bottom plate or the mounting plate is made of a magnetic material (referring to a material that reacts with a magnetic field in some way, not the magnet itself, and in the present invention, it refers to a material that can be adsorbed by a magnet), and the positioning block uses the positioning block in which a magnet is embedded in the bottom surface described above, so that the positioning block and the bottom plate or the mounting plate are surely adsorbed to each other. Further, when the positioning block adopts a positioning square block, the magnetic material is used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. and the positioning block and the bottom plate or the mounting plate are surely adsorbed to each other. Further, when the positioning block adopts a positioning square block, the magnetic material is used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. Further, when the positioning block adopts a positioning square block, the magnetic material is used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. used, and magnets are embedded in the four positioning side surfaces. The magnets are embedded in the four positioning side surfaces, and the positions are shifted uniformly to the left or right avoiding the middle position, and the polar directions in which the magnets are embedded are the same. In this way, when adjacent blocks approach each other, they adsorb to each other and adhere tightly. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member. Also, a magnetic material can be adopted for the support member, thereby realizing tight adhesion between the block and the support member.

[0028] IV. Functional Module Based on the Positioning Block of the Present Invention

[0029] The positioned optical path system forms a system with a more stable position by fixing the positioning block facing the bottom plate or the mounting plate, that is, the functional module of the present invention. Based on a different method of achieving higher reliability adhesion between the above system units, the formed functional module is as follows. The functional module fixed with an adhesive: It includes a positioned positioning block with or without an optical unit mounted thereon, and a bottom plate or a mounting plate fixed by adhering to the positioning block. The positioning block is adhered to the bottom plate and the support member and the bottom plate are inseparable from each other.

[0030] The functional module fixed with an adhesive: It includes a positioned positioning block with or without an optical unit mounted thereon, and a bottom plate or a mounting plate fixed by adhering to the positioning block. The positioning block is adhered to the bottom plate and the support member and the bottom plate are inseparable from each other. from each other. If possible, the functional module further includes a support member.

[0031] Magnetically adsorbed functional module: a positioning block on which an optical unit is mounted or not mounted, and a bottom plate or a mounting plate magnetically adsorbed to the positioning block is included. The positioning block is adsorbed to the bottom plate and the support member and the bottom plate are inseparable. In this case, the functional module further includes a support member. If possible, the functional module further includes a support member.

[0032] In the present invention, the bottom plate, the support member, and the block that play a restrictive role are made of a rigid material that is easy to process. Examples of the material include, but are not limited to, stainless steel, aluminum, ceramic, quartz, and single crystal silicon. These materials are easy to process, ensure a flat surface, have high wear resistance, and high stability. They are integrally formed by a predetermined processing process, thereby reducing processing errors. In the present invention, for anything related to a light-emitting element, such as a laser emitting element or an optical fiber collimator, by means of an adjustment frame or pre-fixing, the beam emitted from the block is made to be completely parallel to the bottom and side surfaces of the block. Between blocks, if the bottom is in close contact with the support member, the beam is smoothly transmitted from one block to another block and received by any detector such as a collimator or a power meter of another block. The continuous structure of the optical functional unit and the pre-adjustment of the optical path can adopt various conventional technical means, and in order to easily further improve the alignment accuracy and coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as needed. Thereby, the processing error is reduced.

[0033] In the present invention, for anything related to a light-emitting element, such as a laser emitting element or an optical fiber collimator, by means of an adjustment frame or pre-fixing, the beam emitted from the block is made to be completely parallel to the bottom and side surfaces of the block. Between blocks, if the bottom is in close contact with the support member, the beam is smoothly transmitted from one block to another block and received by any detector such as a collimator or a power meter of another block. In the present invention, for anything related to a light-emitting element, such as a laser emitting element or an optical fiber collimator, by means of an adjustment frame or pre-fixing, the beam emitted from the block is made to be completely parallel to the bottom and side surfaces of the block. Between blocks, if the bottom is in close contact with the support member, the beam is smoothly transmitted from one block to another block and received by any detector such as a collimator or a power meter of another block. bottom and side surfaces of the block. Between blocks, if the bottom is in close contact with the support member, the beam is smoothly transmitted from one block to another block and received by any detector such as a collimator or a power meter of another block. to be transmitted, and received by any detector such as a collimator or a power meter of another block. The continuous structure of the optical functional unit and the pre-adjustment of the optical path can adopt various conventional technical means, and in order to easily further improve the alignment accuracy and coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as needed. The continuous structure of the optical functional unit and the pre-adjustment of the optical path can adopt various conventional technical means, and in order to easily further improve the alignment accuracy and coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as needed. The continuous structure of the optical functional unit and the pre-adjustment of the optical path can adopt various conventional technical means, and in order to easily further improve the alignment accuracy and coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as needed. The continuous structure of the optical functional unit and the pre-adjustment of the optical path can adopt various conventional technical means, and in order to easily further improve the alignment accuracy and coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as needed. The continuous structure of the optical functional unit and the pre-adjustment of the optical path can adopt various conventional technical means, and in order to easily further improve the alignment accuracy and coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as needed.

Advantages of the Invention

[0034] As described above, in the present invention, the accurate positioning of each block optical element is simply and quickly realized by the tight adhesion between the block and the support member and between the blocks. The optical function unit in the block may be fixed by an adjustment frame or pre-adjustment so that the angle and position of the optical path are not affected after the optical path passes through this optical element, and thereby enabling the exchange and reconfiguration between any optical elements.

[0035] The present invention is particularly suitable for education and research. The construction of one optical path in education is only for educational demonstrations or student practices, and the construction of one optical path in research may be only for one experimental purpose. The optical path constructed under such circumstances does not need to be stored for a long time and reused many times. The present invention provides an optical path construction solution with very low cost, convenience, easy execution, and being disassembled and reconfigurable at any time.

Brief Description of the Drawings

[0036]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0037] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. The positioning blocks, positioning system and method, and functional modules described in the positioning system will be described. Although all the optical units in the examples are collimators, the optical units of the present invention are not meant to be limited to collimators. The present invention can be applied to all optical units that can be positioned by the technical solution of the present invention.

[0038] (Example 1-1)

[0039] As shown in FIGS. 1 and 2, an optical positioning system based on a positioning block includes a positioning disk 1 and two positioning blocks 2 for positioning. The positioning disk 1 is composed of a bottom plate 11 with a horizontal upper surface and one support member 1 2 with a straight inner side as the positioning side. The block 2 includes one bottom surface and one positioning side surface, and the upper surface mounts an optical unit, and the optical unit in this embodiment is a collimator.

[0040] The positioning method using the positioning system in this embodiment is as follows. The bottom plate 11 of the positioning disk 1 is used as the positioning reference in the vertical (height) direction, and the positioning side of the support member 12 on the bottom plate 11 is used as the positioning reference in the horizontal direction. By closely attaching the bottom surface of the positioning block to the bottom plate 1 1 and the upper surface, vertical positioning is realized, and by closely attaching (contacting and fitting precisely) the positioning side surface of the positioning block and the positioning side of the support member horizontal positioning is realized. Two collimators 4 coupled to each other are mounted on the two positioning blocks 2, and the optical axes of the collimators 4 are respectively in their respective positioning blocks It is parallel to the positioning side surface of 2 and the distance H = h (Fig. 1), and is the optical axis height of the collimator 4 Set them the same. In this way, the optical axes of the two collimators 4 are positioned on the same horizontal straight line , and this horizontal straight line is parallel to the positioning side of the bottom plate and the support member. As can be seen from the drawing The size and cross-sectional shape of the positioning block in this embodiment do not have to be the same. What is important is that the optical axis of the optical unit is parallel to the positioning side surface of the positioning block and the distance from the positioning side surface is the same

[0041] To achieve reliable adhesion and positioning between the positioning block 2 and the bottom plate 11, the bottom plate 11 uses a magnetic material, and a magnet (not shown) is embedded in the bottom surface of the positioning block to adsorb and fix the positioning block to the bottom plate. The material of the bottom plate 11 is not limited to a magnetic material , and the positioning block 2 and the bottom plate 11 may be fixed with an adhesive. After fixing by any of the above methods , if the support member is removed or not removed (when the support member and the bottom plate are inseparable), it becomes the functional module of the present invention

[0042] (Embodiment 1-2)

[0043] This embodiment has no drawing and may refer to Fig. 5 of Embodiment 2-2

[0044] In this embodiment, the support member and the bottom plate are inseparable. A movable mounting plate 3 is added to the bottom plate , and it is different from Embodiment 1-1 in that one side of the mounting plate 3 is in close contact with the positioning side of the support member 12 . The bottom surface of the positioning block 2 is in close contact with the mounting plate 3

[0045] In this embodiment, the positioning disk 1 uses a non-magnetic material and the mounting plate 3 uses a magnetic material ​Therefore, block 2 adheres to the mounting plate 3 and becomes integrated, and does not adhere to the positioning disk. Thus, it is easy to integrally move the mounting plate 3, block 2, and the optical function unit from the positioning disk to form an independent functional module. Furthermore, the positioning block 2 and the mounting plate 3 can be fixed with an adhesive so that the mounting plate 3, block 2, and the optical function unit can also be integrally moved from the positioning disk to form one independent functional module.

[0046] (Example 2-1)

[0047] As shown in FIGS. 3 and 4, the optical positioning system based on the positioning block includes a positioning disk 1 and a plurality of blocks 2 for positioning. The positioning disk 1 is composed of a bottom plate 11 with a horizontal upper surface and support members 12 that are perpendicular to each other and have straight inner sides. The plane of each block 2 in the figure is a square with the same size, and the plane size can also be modularly designed, that is, it is intended that a square with the minimum side length is used as the basic cell, and a rectangle or square with a length or width that is an integer multiple of the minimum side length can be designed.

[0048] Block 2 is integrally processed and formed using magnetic stainless steel or other magnetic materials. Magnets 21 are embedded in each side surface of block 2. The position of magnet 21 avoids the middle position and is uniformly shifted to the left or right, and the polar directions in which each magnet 21 is embedded are the same (that is, they are unified to the N pole or S pole facing outward).

[0049] The positioning method using the positioning system of this embodiment is as follows. The positioning disk Taking the bottom plate 11 of the disk 1 as the positioning reference in the vertical (height) direction, and the two side surface support members 12 on the bottom plate 11 as the two positioning references in the horizontal direction. The vertical positioning is realized by the close contact between the bottom of the block 1 and the bottom plate 11, and the horizontal positioning is realized by the close contact between the edge of the block 1 and the support member and the close contact between the edges of the adjacent blocks. Since magnets 21 are embedded in each side surface of the block 2, the adjacent blocks 2 can be adsorbed and closely adhered to each other. On the other hand, the magnets 21 on the side surfaces are not in the center but are offset, and the outer magnetic poles of the magnets 22 are the same. Therefore, the blocks can be normally adsorbed and closely adhered to each other only when all the blocks are arranged in the same direction. The bottom plate 11 and the support member 12 may be made of a magnetic solid material, and a magnet (not shown) is also embedded in the bottom surface of the block 2. Thereby, the block 2 can also be closely adhered to the bottom plate 11 and the support member 12 by magnetic adsorption.

[0050] Based on different optical path designs, an upper-layer optical function unit is mounted on the block 2 at the desired position. The upper-layer optical function unit is arranged such that the central points of all the function units are at the same height by a connection structure. The light-emitting unit (such as a laser, a collimator, etc.) is mechanically adjusted so that the emitted light is parallel to the side surface and the bottom surface of the positioning block, and the central points of the other optical units coincide with the height of the emitted light. After the light passes through the unit, the optical fiber unit is adjusted so that the position and angle of the light do not change. Thus, the light emitted from one emission unit passes through a plurality of optical units and then reaches the final units such as a collimator and a detector. adhered to each other.

[0051] Based on different optical path designs, an upper-layer optical function unit is mounted on the block 2 at the desired position. The upper-layer optical function unit is arranged such that the central points of all the function units are at the same height by a connection structure. The light-emitting unit (such as a laser, a collimator, etc.) is mechanically adjusted so that the emitted light is parallel to the side surface and the bottom surface of the positioning block, and the central points of the other optical units coincide with the height of the emitted light. After the light passes through the unit, the optical fiber unit is adjusted so that the position and angle of the light do not change. Thus, the light emitted from one emission unit passes through a plurality of optical units and then reaches the final units such as a collimator and a detector. units such as a collimator and a detector. The light-emitting unit (such as a laser, a collimator, etc.) is mechanically adjusted so that the emitted light is parallel to the side surface and the bottom surface of the positioning block, and the central points of the other optical units coincide with the height of the emitted light. After the light passes through the unit, the optical fiber unit is adjusted so that the position and angle of the light do not change. Thus, the light emitted from one emission unit passes through a plurality of optical units and then reaches the final units such as a collimator and a detector. After the light passes through the unit, the optical fiber unit is adjusted so that the position and angle of the light do not change. Thus, the light emitted from one emission unit passes through a plurality of optical units and then reaches the final units such as a collimator and a detector. It can be smoothly incident on the functional optical unit. Various optical functional units are arranged such that the light emission position or the incident position is at the same height and the horizontal positions coincide with respect to the upper surface of the block. According to the necessity of the optical path, by placing a plurality of blocks equipped with optical functional units at corresponding positions of the block array on the bottom plate, almost accurate positioning of the optical system can be realized. By performing a plurality of fine adjustments on the optical functional unit, necessary accurate positioning can be realized (in order to facilitate further improvement of the alignment accuracy and the coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as necessary). According to the necessity of the optical path, by placing a plurality of blocks equipped with optical functional units at corresponding positions of the block array on the bottom plate, almost accurate positioning of the optical system can be realized. By performing a plurality of fine adjustments on the optical functional unit, necessary accurate positioning can be realized (in order to facilitate further improvement of the alignment accuracy and the coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as necessary). According to the necessity of the optical path, by placing a plurality of blocks equipped with optical functional units at corresponding positions of the block array on the bottom plate, almost accurate positioning of the optical system can be realized. By performing a plurality of fine adjustments on the optical functional unit, necessary accurate positioning can be realized (in order to facilitate further improvement of the alignment accuracy and the coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as necessary). According to the necessity of the optical path, by placing a plurality of blocks equipped with optical functional units at corresponding positions of the block array on the bottom plate, almost accurate positioning of the optical system can be realized. By performing a plurality of fine adjustments on the optical functional unit, necessary accurate positioning can be realized (in order to facilitate further improvement of the alignment accuracy and the coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as necessary). According to the necessity of the optical path, by placing a plurality of blocks equipped with optical functional units at corresponding positions of the block array on the bottom plate, almost accurate positioning of the optical system can be realized. By performing a plurality of fine adjustments on the optical functional unit, necessary accurate positioning can be realized (in order to facilitate further improvement of the alignment accuracy and the coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as necessary). According to the necessity of the optical path, by placing a plurality of blocks equipped with optical functional units at corresponding positions of the block array on the bottom plate, almost accurate positioning of the optical system can be realized. By performing a plurality of fine adjustments on the optical functional unit, necessary accurate positioning can be realized (in order to facilitate further improvement of the alignment accuracy and the coupling efficiency, a plurality of fine adjustment mechanisms can be added to the block as necessary). .

[0052] In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction. In this embodiment, the collimator 4 is taken as an example. In the upper surface schematic view of FIG. 3, collimator optical paths are shown in the upper part and the lower part. FIG. 4 is a schematic perspective view excluding the lower collimator from FIG. 3. As shown in FIG. 3, there are three blocks 2 in the upper part. A pair of coupling collimators 4 are provided in the blocks 2 at both ends. The central block 2 does not carry an optical functional unit but serves to lengthen the optical path. In the lower part, a pair of coupling collimators are fixed to two adjacent blocks 2. As can be seen from FIGS. 3 and 4, the blocks 2 are of equal width and are aligned and in close contact with each other, while the coupling collimators 4 are attached at the same position within the blocks 2 and are all arranged in parallel and oppositely to the side edges of the blocks 2. Therefore, the coupling collimator 4 can achieve horizontal alignment. By the connection structure, the center points of the coupling collimators 4 are also aligned in the height (vertical) direction.

[0053] (Embodiment 2-2)

[0054] As shown in FIG. 5, in this embodiment, a mounting plate 3 movable on the bottom plate is added, and this is different from Embodiment 2-1 in that two sides of the mounting plate 3 perpendicular to each other are in close contact with the support member 12. The bottom surface of the block 2 is in close contact with the mounting plate 3.

[0055] In this embodiment, the positioning disk 1 is made of a non-magnetic material, and the mounting plate 3 is made of a magnetic material. Therefore, the block 2 is adsorbed to the mounting plate 3 to become integral, and is not adsorbed to the positioning disk. Thus, it is easy to integrally move the mounting plate 3, the block 2 and the optical function unit from the positioning disk to form an independent functional module.

[0056] (Embodiment 3-1)

[0057] As shown in FIG. 6, this embodiment is different from Embodiment 2-1 in that the block 2 has no magnet. A method of bonding with an adhesive realizes a tight close contact between the blocks 2. Also, the block, the support member and the bottom plate can be tightly adhered with an adhesive.

[0058] This embodiment is mainly used in an optical path using a super-small optical function unit. Since the volume of the required block 2 is very small, it is difficult to process other structures on it. Of course, this structure is also applicable to blocks 2 of various sizes and is not limited to small ones. In order to facilitate further disassembly and reconfiguration, a decomposable or dissolvable adhesive can be used as the adhesive. The advantages of using this structure are as follows. (1) The material selection is more free, and various metals and non-metals such as aluminum alloy, quartz, single crystal silicon, ceramics, etc., which are easy to process and difficult to deform, can be used. (2) ​​​​​​​​​​​​​After the adhesive has cured, the entire bonded block can be removed from the positioning disk 1 and assembled into separate small modules. Alternatively, the positioning disk 1, the block 2 and the optical path can be bonded to form a separate small module as a whole. .

[0059] The mounting and pre-alignment of the optical function unit are the same as in Example 1-1. Fig. 6 is also the same as Fig. 5. Taking the coupling collimator 4 as an example, the description is the same as in Example 1-1 . Therefore, it will not be repeated here.

[0060] (Example 3-2)

[0061] In this example, as shown in Fig. 7, a movable mounting plate 3 is added to the bottom plate. This is different from Example 3-1 in that two sides of the mounting plate 3 perpendicular to each other are in close contact with the support member 12. The bottom surface of the block 2 is in close contact with the mounting plate 3. Between the blocks 2 and between the block 2 and the mounting plate are adhered with an adhesive. After the adhesive has cured, the mounting plate 3, the block 2 and the optical function unit are moved integrally from the positioning disk to form one independent functional module.

Explanation of Reference Numerals

[0062] 1. Positioning disk, 11. Bottom plate, 12. Support member 2. Positioning block (or positioning square block), 21. Magnet 3. Mounting plate 4. Collimator.

Claims

1. An optical positioning system for constructing an optical path, wherein the optical positioning system includes a plurality of positioning blocks, and each positioning block includes a bottom surface, an upper surface on which an optical unit can be mounted, and at least one positioning side surface; the positioning block has four side surfaces perpendicular to the bottom surface, and the horizontal cross-section of the positioning block is rectangular; the positioning side surfaces are two mutually perpendicular positioning side surfaces; the optical positioning system further includes a bottom plate with one upper surface being horizontal and at least one support member, and the plurality of positioning blocks are used for mounting and positioning the optical unit. The support member is either fixed to the bottom plate or not fixed, and has at least one straight positioning side. The positioning side surface of the positioning block can be in close contact with the positioning side of the support member; the support member is fixed to the bottom plate, the bottom plate has a placement plate, and the side of the placement plate can be in close contact with the positioning side of the support member. Between the positioning block and the placement plate and between the adjacent positioning blocks in close contact, they are adhered by an adhesive. An optical positioning system based on a positioning block, characterized in that.

2. The support member has at least two mutually perpendicular positioning sides, and the mutually perpendicular positioning sides are located on the same support member or different support members. An optical positioning system based on the positioning block according to claim 1, characterized in that.

3. The positioning block has a square block structure, the side surface of the positioning block is perpendicular to the bottom surface, the side surface can be in close contact with the positioning side of the support member or the side surface of a different positioning block, an optical unit can be mounted on the upper surface of all or part of the positioning blocks, the horizontal cross-section of the positioning block is rectangular, and the sizes of the horizontal cross-sections of different positioning blocks are the same or are rectangles with different modularized designed sizes. An optical positioning system based on the positioning block according to claim 2, characterized in that.

4. A positioning method for an optical positioning system for constructing an optical path, wherein the optical positioning system is an optical positioning system based on the positioning block according to any one of claims 1 to 3. Vertical positioning is achieved by bringing the bottom of the positioning block into close contact with the bottom plate or the mounting plate, and horizontal positioning is realized by the close contact between the side surface of the positioning block and the support member. Based on different optical path designs, an optical unit is mounted on the positioning block at a desired position. Through the connection structure, the central points of all optical units are positioned at the same height. The light-emitting unit is mechanically adjusted so that the emitted light is parallel to the side and bottom surfaces of the positioning block, and the central points of other optical units coincide with the height of the emitted light. An optical system positioning method based on a positioning block, characterized in that between the positioning block and the mounting plate, and between the positioning blocks in close contact, they are fixed with an adhesive.

5. A functional module including a plurality of positioning blocks, wherein the positioning block includes a bottom surface, an upper surface on which an optical unit can be mounted, and at least one positioning side surface. The positioning block has four side surfaces perpendicular to the bottom surface, and the horizontal cross-section of the positioning block is rectangular. The positioning side surfaces are two positioning side surfaces perpendicular to each other. The functional module includes a bottom plate, a mounting plate, and a plurality of the positioning blocks on the mounting plate. An optical unit is mounted on some or all of the positioning blocks. The positioning blocks and the mounting plate are connected by an adhesive, and the positioning blocks in close contact with each other are connected by an adhesive. A functional module based on a positioning block, characterized by the above.

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