CN218585065U - Optical system - Google Patents

Abstract

The utility model discloses an optical system, this optical platform include the base plate and the optical panel who is made by brittle material, optical panel sets up on the base plate, optical panel's upper surface is the plane. Compared with the prior art, the utility model has the advantages of: by arranging the layered optical platform structure, the upper optical panel is made of brittle materials, so that excellent surface flatness can be ensured, and the mechanical performance of the optical platform can be greatly improved on the premise of keeping the advantages of the conventional optical platform, so that the stability and convenience of an applied optical system are greatly improved; in addition, because the optical panel is made of brittle materials, the expansion coefficient is small and is matched with that of the traditional optical element, and the temperature stability of an applied optical system can be greatly improved.

Description

Optical system

Technical Field

The utility model belongs to the technical field of optics experimental facilities and specifically relates to an optical platform to and an optical system who has this optical platform is used.

Background

The optical platform is also called an optical bread board, an optical desktop, a scientific desktop and an experimental platform. The optical platform is widely applied to the fields of optics, electronics, precision machinery manufacturing, metallurgy, aerospace, aviation, navigation, precision chemical engineering, nondestructive testing and the like, and is also applied to key devices of precision test instruments and equipment vibration isolation in other mechanical industries.

The optical platform pursues the level, and its processing is the whole mesa extremely flat, is covered with the engineering screw hole of square formation on the mesa, can fix optical element with these holes and corresponding screw.

Most of the current optical platforms are made of metal, such as carbon steel, but the carbon steel is easy to rust and is difficult to maintain. Other materials are stainless steel, but the processing ductility of the stainless steel determines that the flatness of the optical platform is poor. Simultaneously, in the use of optics platform, because reasons such as collide with, make sunken easily at the platform upper surface, because the metal has the ductility, collide with the sunken that causes, also can form the arch on surface simultaneously, little sunken production influence to the location of top optics locating piece, only tiny arch or burr will produce serious interference to the location of optics locating piece.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is not enough to above-mentioned prior art existence, provides an optical platform that can improve mechanical properties.

The second technical problem to be solved in the present invention is to provide an optical system using the above optical platform.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: an optical bench, comprising: the optical panel is arranged on the substrate, and the upper surface of the optical panel is a plane.

Preferably, the optical panel and the substrate are fixed together by means of gluing, mechanical bonding or optical bonding.

Further, the optical platform may also be a three-layer layered structure, and the optical platform further includes an optical flat plate and a pressing block, the optical flat plate is located below the substrate and covers the substrate and the optical panel in a projection on a horizontal plane, the pressing block is fixed to a portion of the optical flat plate located on the periphery of the substrate, and the pressing block is further pressed at a position close to the edge on the upper surface of the optical panel, so that the pressing block fixes the optical panel, the substrate, and the optical flat plate.

In order to ensure the compression between the pressing block and the optical panel, an elastic body is arranged between the pressing block and the optical panel.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: an optical system, characterized by: an optical bench as described above is applied.

In order to facilitate experimental operations on the optical platform and improve the flexibility of the optical system, the optical system further comprises a positioning block for arranging an optical instrument or an optical element, the positioning block is arranged on the upper surface of the optical panel, the substrate and/or the optical panel can be detachably connected with the positioning block, and the substrate and the positioning block are directly or indirectly connected.

According to an aspect of the utility model, for the indirect connection of locating piece and base plate, optical panel includes two at least panel modules, the locating piece sets up on panel module, and each panel module arranges on the base plate at interval and splices into optical panel, forms the recess between the adjacent panel module, the recess is sunken by optical panel's upper surface orientation base plate's direction, it has the first mounting that is used for with positioning block connection to embed in the recess, first mounting is less than optical panel's upper surface, first mounting is fixed with the base plate.

According to the utility model discloses a according to another aspect, for indirect connection of locating piece and base plate, be formed with the recess on the optical panel, the recess is sunken by the upper surface of optical panel towards the direction of base plate, it has the second mounting that is used for with positioning block connection to embed in the recess, the second mounting is less than optical panel's upper surface, the second mounting is fixed with the base plate.

Preferably, in order to facilitate connection of each side of the positioning block with the substrate, the grooves include a plurality of first grooves and second grooves which are arranged at an angle, the first grooves and the second grooves are both arranged in an array, each first groove is arranged between two adjacent second grooves, each second groove is arranged between two adjacent first grooves, and the positioning block is disposed at an area surrounded by two first grooves in two adjacent rows and two second grooves in two adjacent columns.

According to an aspect of the utility model, it is fixed through the mode of magnetism to inhale between optical panel and the locating piece.

Preferably, the optical panel is provided with a first positioning hole, the positioning block comprises a base, the base is provided with a second positioning hole, one of the first positioning hole and the second positioning hole is embedded with a magnet, and the other of the first positioning hole and the second positioning hole is embedded with a magnetic material.

In order to better ensure the positioning of each positioning block and the stability of the system, the positioning blocks are provided with at least two positioning blocks which are arranged adjacently, and the adjacent positioning blocks are magnetically attracted.

Preferably, the magnetic attraction among the positioning blocks is realized by that each positioning block further comprises a first fixing block and a second fixing block, a first notch is formed on each side wall of the base, the side wall is a wall surface where the side of the cross section of the base is located, and the first notch is formed by the surface of the side wall of the base sinking towards the inner direction of the base; the first fixed block is arranged above the base, a second notch corresponding to the first notch is formed in each side wall of the first fixed block, the first notch and the second notch are connected into a whole, the second fixed block is embedded into the first notch and the second notch, the second fixed block is fixed to the first fixed block, at least two positioning grooves are formed in the outer surface, away from the first notch and the second notch, of the second fixed block, a magnet is embedded into one positioning groove, a magnetic material is embedded into the other positioning groove, and therefore magnetic attraction is achieved between the second fixed block of each positioning block and the second fixed block of the adjacent positioning block.

For the location of avoiding the mechanism influence locating piece of magnetism to inhale, ensure positioning accuracy, the position that every lateral wall of base is located first breach both sides constitutes the reference surface, the reference surface is the plane, the relative reference surface of second fixed block contracts certain distance in, and corresponding reference surface butt each other between the adjacent locating piece, the bottom surface of second fixed block is higher than the bottom surface of base.

In order to prevent the magnetic attraction mechanism from forming a pulling force on the lateral direction of the positioning block, the size of the positioning groove embedded with the magnetic attraction material is larger than that of the positioning groove embedded with the magnet.

In order to further improve the stability of the arrangement of the positioning blocks, the optical system further comprises a leaning body which is arranged at a position, close to the edge, of the upper surface of the optical panel, the positioning blocks are provided with at least two positioning blocks and can be abutted against one side, facing the middle of the optical system, of the leaning body, and the adjacent positioning blocks are abutted against each other; each side wall of the base is provided with a first notch, the side wall refers to a wall surface where the side of the cross section of the base is located, and the first notch is formed by the fact that the surface of the side wall of the base is sunken towards the inner direction of the base; the optical system further comprises a first fixed connecting piece and a first bead-pushing screw, the first fixed connecting piece is only arranged on the free wall surface of the positioning block, which is not contacted with the leaning body and other positioning blocks, and the first bead-pushing screw is screwed in from the side surface of the first fixed connecting piece so as to be tightly abutted against the bottom surface of the first notch of the base, so that adjacent positioning blocks are tightly abutted against each other and the positioning blocks and the leaning body are tightly abutted against each other.

According to the utility model discloses a another aspect, it is fixed through the mode that compresses tightly between locating piece and the optical panel, the locating piece includes base, second fixed connection spare and second top pearl screw, second fixed connection spare can dismantle with the base plate directly or indirectly and be connected, second fixed connection spare sets up in the side of base and at least part is located the top of base, second top pearl screw from top to bottom passes second fixed connection spare and supports tightly with the upper surface of base, makes locating piece and optics platform compress tightly from this.

According to another aspect of the present invention, the positioning block and the optical panel are fixed by an external component in a magnetic attraction manner, the optical panel is provided with a first positioning hole, the positioning block comprises a base, and the base is provided with a second positioning hole; the positioning block is provided with an adapter used for arranging an optical element, the adapter is provided with a support leg, the support leg is a metal piece with magnetism, the support leg penetrates downwards into a first positioning hole of the optical panel from the upper surface of the base through a second positioning hole, and the support leg is fixed with a magnet arranged in the first positioning hole in a magnetic attraction mode.

According to the utility model discloses a another aspect, it is fixed through vacuum adsorption's mode between locating piece and the optical panel, the bottom surface of locating piece pastes tightly with optical panel's upper surface, the optical panel is formed with hollow inner chamber, the inner chamber runs through optical panel's upper surface, the inner chamber communicates the vacuum pump to adsorb the locating piece through the evacuation.

In order to further improve the positioning accuracy and stability of the positioning blocks, the optical system further comprises a leaning body which is arranged at a position, close to the edge, of the upper surface of the optical panel, the positioning blocks are provided with at least two positioning blocks and can be abutted against one side, facing the middle of the optical system, of the leaning body, and the adjacent positioning blocks are abutted against each other.

In order to apply acting force between the leaning body and the positioning blocks to stably abut against the leaning body, the positioning blocks abutted against the leaning body and the corresponding leaning body are attracted and adsorbed by magnetic force.

Compared with the prior art, the utility model has the advantages of: by arranging the layered optical platform structure, the upper optical panel is made of brittle materials, so that excellent surface flatness can be ensured, and the mechanical performance of the optical platform can be greatly improved on the premise of keeping the advantages of the conventional optical platform, so that the stability and convenience of an applied optical system are greatly improved; in addition, because the optical panel is made of brittle materials, the expansion coefficient is small and is matched with that of the traditional optical element, and the temperature stability of an applied optical system can be greatly improved; the positioning block of the optical system is fixed with the optical platform by means of fasteners, magnetic attraction, vacuum, compression and the like, and the stability and flexibility of the optical system can be greatly improved.

Drawings

Fig. 1 is a schematic view of an optical bench according to a first embodiment of the present invention;

fig. 2 is an exploded view of an optical bench according to a first embodiment of the present invention;

fig. 3 is a schematic view of an optical bench according to a second embodiment of the present invention;

fig. 4 is an exploded view of an optical bench according to a second embodiment of the present invention;

fig. 5 is a schematic view of an optical bench according to a third embodiment of the present invention;

fig. 6 is a cross-sectional view of an optical bench according to a third embodiment of the present invention;

fig. 7 is a schematic view of an optical system according to a first exemplary embodiment of the present invention;

FIG. 8 is a schematic view of the positioning block and the optical instrument of FIG. 7;

FIG. 9 is a schematic view of the locating block of FIG. 8;

FIG. 10 is a schematic view of the magnet block hidden in the positioning block of FIG. 9;

FIG. 11 is a schematic view of the base of the locating block of FIG. 9;

fig. 12 is a schematic view of an optical system according to a second embodiment of the present invention;

fig. 13 is a schematic view of a positioning block of an optical system according to a second embodiment of the present invention;

FIG. 14 is an enlarged view of a portion I of FIG. 12;

fig. 15 is a schematic view of an optical system according to a third embodiment of the present invention;

fig. 16 is a partial schematic view of an optical system according to a fourth example of the present invention;

FIG. 17 is a cross-sectional view of FIG. 16;

fig. 18 is a partial schematic view of an optical system according to a fifth example of the present invention;

fig. 19 is a cross-sectional view of fig. 18.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 and 2, an optical bench includes an optical panel 1 having a surface that is a flat surface. The optical panel 1 is made of a brittle material such as ceramic, glass, or quartz, and can achieve very excellent surface flatness by an optical cold working method. Due to the particularity of the brittle material, the processing of the material, such as drilling screw holes and the like, is inconvenient, long-time grinding is needed, the efficiency is low, laser cutting and the like can only cut some thin materials, such as materials of a few millimeters, but because the thickness of the optical platform exceeds the thickness, if the thickness is not enough, the surface of the whole optical platform deforms, the flatness of the optical panel 1 is affected, and the positioning accuracy is affected.

Therefore, in the utility model discloses in, provide an optical platform of layered structure, in this embodiment, including two-layer, the first layer is foretell optical panel 1, and the second floor is base plate 2, and optical panel 1 sets up in base plate 2 top, especially sets up the upper surface at base plate 2, and the upper surface that base plate 2 was kept away from to optical panel 1 is the plane, and optical panel 1 and base plate 2 machine-shaping respectively. The optical panel 1 may be fixed to the substrate 2 by glue, mechanical or optical bonding to form a complete optical platform, and the whole optical platform is a substantially flat rectangular parallelepiped. The upper layer and the lower layer are spliced, so that the thickness of the optical platform can be increased, and the stability is improved. Meanwhile, due to the adoption of a two-layer structure, the first layer can be cut or spliced, so that the processing cost is reduced.

The material of the substrate 2 is not limited, and may be a brittle material similar to the optical panel 1 or a ductile metal material. If the substrate 2 and the optical panel 1 are made of the same material, the fixing mode can be glue bonding or optical glue technology, the optical panel 1 is fixed above the substrate 2, and the optical panel 1 and the substrate 2 are made of the same material, so that the stress is extremely small, the thickness is enough, and the stability of the optical platform is sufficiently guaranteed in the use process of the glued optical platform; if the substrate 2 is made of a metal material different from that of the optical panel 1, a screw hole may be formed in the substrate 2, and the substrate 2 and the optical panel 1 may be fixed by pressure bonding.

Specifically, in the present embodiment, the optical panel 1 includes at least two panel modules 11, which can be formed by processing a whole block of brittle material by laser cutting, and the plurality of panel modules 11 are preferably square in cross section and arranged in an array on the upper surface of the substrate 2. Preferably, the panel modules 11 are uniform in shape and size. In the present embodiment, the panel module 11 has 56 blocks in total, and is arranged in an array of eight rows and eight columns. The top-left to bottom-right directions in fig. 1 are in rows and the top-right to bottom-left directions are in columns, and other embodiments and applications are described below with the same definitions.

The panel modules 11 are bonded to the substrate 2, and after the array arrangement is completed by splicing, the panel modules can be ground again, so that the upper surfaces of the panel modules 11, which are far away from the substrate 2, are located on the same plane, and the flatness of the upper surface of the optical panel meets the requirement of an optical platform.

A certain distance is reserved between two adjacent panel modules 11, grooves 12 are formed between adjacent rows and adjacent columns of the optical modules 11, and the grooves 12 are in the form that the upper surface of the optical panel 1 far away from the substrate 2 is concave towards the substrate 2. In the present embodiment, preferably, the distance between each two adjacent panel modules 11 is equal, and the panel modules 11 are arranged at regular intervals.

The first fixing member 3 is embedded in the groove 12, and the first fixing member 3 is preferably made of metal, and in this embodiment, has a long strip shape, and the length and the width of the strip shape are respectively matched with the groove 12. The first fixing member 3 may be formed with a plurality of first fixing holes 31, the first fixing holes 31 may be spaced apart along a length direction of the first fixing member 3, and the first fixing holes 31 are used for fixing a positioning block (to be described in detail below). Preferably, the first fixing hole 31 is a screw hole to fix the positioning block by a fastener such as a screw. The first fixing member 3 shown in the figure is sheet-shaped, alternatively, the first fixing member 3 may also be block-shaped, and a magnet may be disposed in the first fixing hole 31 and fixed to the positioning block 8 by a magnetic attraction manner. In order to avoid interference between the first fixing pieces 3, the first fixing pieces 3 embedded in the grooves 12 between adjacent rows and the first fixing pieces 3 embedded in the grooves 12 between adjacent columns may be arranged in a vertically staggered manner. After the first fixing member 3 is inserted into the groove 12, the whole height of the first fixing member 3 is lower than that of the optical panel 1, that is, the upper surface of the first fixing member 3 is lower than that of the optical panel 1.

The first fixing member 3 may be fixed to the substrate 2 by an adhesive such as silicone, paraffin, or the like. The periphery of each panel module 11 is provided with a first fixing hole 31.

Example two

Referring to fig. 3 and 4, the difference between the first embodiment and the second embodiment is that the optical panel 1 is a unitary plate, i.e. a unitary plate, and the upper surface of the optical panel away from the substrate 2 can be ground and polished to form an optical reference surface with high flatness. In addition, a groove is cut in the optical panel 1 by means of laser cutting. In the present embodiment, the grooves include a first groove 13 and a second groove 14 arranged at an angle, and are formed by recessing the optical panel 1 away from the upper surface of the substrate 2 toward the substrate 2. In the present embodiment, the first grooves 13 and the second grooves 14 are arranged in an array, wherein the first grooves 13 are seven rows and six columns, the second grooves 14 are six rows and seven columns, the first grooves 13 and the second grooves 14 are both strip-shaped, the extending directions are preferably perpendicular to each other, and the shapes and the sizes of the first grooves 13 and the second grooves 14 are the same.

Each first groove 13 is arranged between two adjacent second grooves 14, each second groove 14 is arranged between two adjacent first grooves 13, and the second grooves 14 are further arranged on both outer sides of each row of first grooves 13. The configuration is such that two first grooves 13 in any two adjacent rows and two second grooves 14 in two adjacent columns enclose a rectangular shape (non-closed loop, i.e., the first grooves 13 and the second grooves 14 do not communicate). In some application examples, a first positioning hole 15 is further formed in an area enclosed by the two first grooves 13 in two adjacent rows and the two second grooves 14 in two adjacent columns, and is used for fixing a positioning block (described in detail below).

The second fixing member 3 'is embedded in each of the first recess 13 and the second recess 14, and a first fixing hole 31' is formed therein for fixing a positioning block (to be described in detail later). Preferably, the first fixing hole 31' is a screw hole. Alternatively, a magnet may be disposed in the first fixing hole 31' and fixed to the positioning block 8 by magnetic attraction.

EXAMPLE III

Referring to fig. 5 and fig. 6, in this embodiment, the difference from the second embodiment is that the optical platform has a three-layer structure, and further includes an optical flat plate 4 located below the substrate 2, a projection of the optical flat plate 4 on a horizontal plane covers the substrate 2 and the optical panel 1, and a size of the optical panel 1 may be the same as that of the substrate 2, so that a periphery of the optical flat plate 4 protrudes from the substrate 2.

The optical platform further comprises a pressing block 5, an elastic body 6 and a vibration damping pad 7, wherein the bottom of the pressing block 5 is fixed with the part of the optical flat plate 4 located at the periphery of the substrate 2, and the pressing block can preferably abut against the edges of the substrate 2 and the optical panel 1. The pressing block 5 is also pressed against the upper surface of the optical panel 1 at a position near the edge, thereby fixing the optical panel 1, the substrate 2, and the optical flat plate 4. In the present embodiment, the press block 5 has a substantially Z-shape, and includes a fixing portion 51 fixed to the optical flat plate 4, a pressing portion 52 pressing the optical panel 1, and a connecting portion 53 extending between the fixing portion 51 and the pressing portion 52, the fixing portion 51 and the pressing portion 52 extending oppositely at upper and lower ends of the connecting portion 53. The fixing portion 51 and the optical flat plate 4 may be fixed by a fastener such as a screw. Further, in the present embodiment, the pressing pieces 5 are provided at four corners of the optical panel 1, and alternatively, a plurality of pressing pieces 5 may be provided, pressed at positions between two adjacent corners.

The above-mentioned elastic body 6 is provided between the pressing portion 52 and the optical panel 1, so that the pressing block 5 can press the optical panel 1 better and prevent relative movement between two rigid components.

In order to reduce the influence of vibration generated during the experiment on the experimental data, the above-mentioned vibration damping pad 7 is further disposed between the lower surface of the substrate 2 and the upper surface of the optical flat plate 4.

The optical platform described above can be applied to an optical system, and the optical system will be described in detail below.

Application example 1

Referring to fig. 7 to 11, the optical system includes the above-mentioned optical platform, a positioning block 8 and a leaning body 9, the positioning block 8 is disposed on the upper surface of the optical panel 1, and it can be directly fixed with the substrate 2 by fasteners such as screws through each groove position, and in each embodiment of the present invention, the positioning block 8 is indirectly connected with the substrate 2, and is fixed with the above-mentioned first fixing member 3 and second fixing member 3', and/or the positioning block 8 is directly connected with the optical panel 1. The connection of locating piece 8 is the detachable connection. The positioning block 8 may be provided with an optical instrument 100, such as a laser, a collimator, etc. The number of the positioning blocks 8 may be at least two, and the adjacent positioning blocks 8 abut against each other.

The positioning block 8 includes a base 81, a first fixing block 82 and a second fixing block 83 disposed on the base 81. The base 81 has a substantially square cross section, each sidewall of the base 81 has a first notch 812 formed therein, the sidewall is a corresponding wall surface where four sides of the cross section are located, and the first notch 812 is formed by the sidewall surface of the base 81 being recessed toward the inside of the base 81. The side walls of the base 81 are each formed with a reference surface 811 at a position on both sides of the first notch 812, and the reference surfaces 811 are flat, that is, four corners of the base 81 each have a reference surface 811, and each corner has two reference surfaces 811 perpendicular to each other. The base 81 of the positioning block 8 has a shape and a size which are matched with an area enclosed by two first grooves 13 of two adjacent rows and two second grooves 14 of two adjacent columns on the optical platform so as to be installed at the area. The positioning block 8 is allowed to partially exceed the area, i.e., the inner sides of the first and second grooves 13 and 14, but not to exceed the outer sides of the first and second grooves 13 and 14. Here, the inner sides of the first and second grooves 13 and 14 mean the sides facing inside the region, and the outer sides of the first and second grooves 13 and 14 mean the sides facing outside the region.

The first fixing block 82 is disposed above the base 81, has a shape and a size adapted to the base 81, and has a second notch 821 formed on each sidewall thereof corresponding to the first notch 812, and the first notch 812 and the second notch 821 are integrally connected. A second fixing hole 822 is formed in a bottom surface (a surface close to the inside of the first fixing block 82) of the second notch 821, and preferably, the second fixing hole 822 is a screw hole.

The first notch 812 and the second notch 821 may be cut by cutting or cold working, thereby improving the practicality. The base 81 may be made of a brittle material such as quartz, glass, or ceramic, and the first fixing block 82 may be made of metal so as to form the second fixing hole 822. The base 81 and the first fixing block 82 are preferably fixed by gluing.

The second fixing block 83 is embedded in the first notch 812 and the second notch 821, and the second fixing block 83 is retracted a certain distance relative to the reference plane 811, that is, when the positioning block 8 contacts with the external plane, the reference plane 811 passes through the reference plane 811, for example, the reference planes 811 between two adjacent positioning blocks 8 abut against each other. And the bottom surface of the second fixed block 83 is higher than the bottom surface of the base 81, so that the second fixed block does not contact with the optical panel 1, and the positioning accuracy of the positioning block 8 is not affected. The second fixing block 83 may be fixed to the first fixing block 82 by a fastener such as a screw passing through the second fixing hole 822 of the first fixing block 82. At least two positioning grooves 831 are formed in the outer surface, far away from the first notch 812 and the second notch 821, of the second fixing block 83, a magnet is embedded into one positioning groove 831, a magnetic material such as stainless steel is embedded into the other positioning groove 831, therefore, the positioning accuracy can be further ensured by the two adjacent positioning blocks 8 through the second fixing block 82, the positioning grooves 831 embedded with the magnetic material are larger than the positioning grooves 831 embedded with the magnet, and when different positioning blocks 8 are adsorbed through the second fixing block 82, lateral tension cannot occur.

The optical device 100 may be disposed in the middle of the positioning block 8 (through a middle opening of the first fixing block 81 to form a mounting space) and exposed on the upper surface of the positioning block 8.

In order to facilitate the fixing of the positioning block 8 and the optical platform, a second positioning hole 813 may be formed in the base 81, and correspond to the first positioning hole 15 on the optical panel 1, and a magnet or a magnetic material (not shown) may be embedded in the first positioning hole 15 and the second positioning hole 813, or a screw hole accessory may be added, so that the positioning block 8 and the optical panel 1 are fixed by a magnetic attraction or a fastening member.

Preferably, the material is inhaled to embedded magnetism of second locating hole 813, and embedded magnet in first locating hole 15 because locating piece 8 can often circulate, if have magnet on the locating piece 8, can adsorb impurity easily to influence positioning accuracy. Simultaneously, the magnet in the first locating hole 15 of optical panel 1 also can make detachablely, can fix magnet in optical panel 1 through the screw when needing to use, can dismantle when not needing to use and place alone, prevents because the existence of magnet, can adsorb unnecessary impurity to bed hedgehopping base 81's lower surface causes not smooth.

Preferably, in order to improve the flatness and the positioning accuracy of the positioning block 8, four second positioning holes 813 are provided on the positioning block 8, and are uniformly distributed in a square area of the positioning block 8, and the aperture of the second positioning hole 813 is larger than the diameter of the first positioning hole 15 on the optical panel 1.

The leaning bodies 9 are in a long strip shape and are arranged on the upper surface of the optical panel 1, and the plurality of leaning bodies 9 are annularly arranged at the position of the optical panel 1 close to the edge, and only 1, 2 or 3 leaning bodies 9 can be arranged according to the requirement, as shown in the figure, 2 leaning bodies are arranged. The rest body 9 is located on the outer periphery of the first groove 13 and the second groove 14 on the outermost periphery. The rest body 9 may be fixed to the optical panel 1 by gluing. The reference surface 811 corresponding to the outermost positioning block 8 can abut (abut) the side of the rest body 9 facing the center of the optical system, thereby facilitating positioning of the rest body 9. Here, the side of the body 9 facing the middle of the optical system means that when the body 9 is annularly arranged, the positioning block 8 is disposed inside the annular space, and the positioning block 8 abuts against the inner periphery of the body 9 in the annular space. A third gap 91 can be formed at the position of the leaning body 9 corresponding to the second fixing block 83, so that a magnet or a magnetic material is put in, and the magnetic fixing of the positioning block 8 and the leaning body 9 is realized through the second fixing block 83. The arrangement of the support 9 can apply a force to the outermost positioning block 8 to ensure the positioning of each positioning block 8 more properly.

Alternatively, the optical platform may be in the form of the first embodiment, in which the base 81 of the positioning block 8 is shaped and sized to fit the panel module 11, that is, one panel module 11 corresponds to one positioning block 8 (it is not necessarily required that each panel module 11 is provided with a positioning block 8).

Since the optical panel 1 is optically cold-worked to provide a very good surface flatness, additional fastening means (first fastening member 3 and second fastening member 3' as described above) can be added at the rear, slightly below the upper surface, without affecting the flatness of the entire optical panel 1. Simultaneously, because optical panel 1 adopts fragile material, rather than adopting the material that metal etc. has ductility, collide with in the use, only can form the pit on the surface, can not form arch, burr scheduling problem, under the little condition of pit, can not exert an influence to the location of the locating piece 8 of top, can improve optical platform's life by a wide margin from this, fragile material coefficient of expansion is less moreover, also matches with traditional optical element's coefficient of expansion, can improve optical system's temperature stability by a wide margin. Cooperate simultaneously the utility model discloses a locating piece also can improve the stability that utilizes this optical platform to build optical system greatly.

Application example two

Referring to fig. 12 to 14, in the present embodiment, the difference from the second application example is that the positioning block 8 further includes a second fixing connector 84 and a second elastic bead-pushing screw 85, so as to replace the first fixing block 82 and the second fixing block 83, the second fixing connector 84 is disposed on a side surface of the base 81 and at least partially located above the base 81, the second bead-pushing screw 85 penetrates through the second fixing connector 84 from top to bottom and abuts against an upper surface of the base 81, and the second fixing connector 84 is further fixed to the second fixing member 3' embedded in the optical panel 1 by a fastener such as a screw, thereby pressing the positioning block 8 against the optical platform. Preferably, the second fixed connecting members 84 are pressed against four corners of the base 81, and adjacent corners of two adjacent positioning blocks 8 can share one second fixed connecting member 84.

Since the second fixing connector 84 is connected to the second fixing element 3' in this embodiment, the base 81 of the positioning block 8 can be fixed to the optical panel 1 without forming the second positioning hole 813.

Application example three

Referring to fig. 15, in the present embodiment, the difference from the first application example is that the base 81 is still fixed to the optical panel 1 by magnetic attraction, the first fixing connector 84' replaces the first fixing block 82 and the second fixing block 83, and the first fixing connector 84' is fixed to the second fixing member 3' on the optical panel 1 by a fastener such as a screw. In addition, the positioning block 8 further includes a first ball screw 85 'screwed from the side of the first fixing connector 84', so as to abut against the bottom surface of the first notch 812 of the base 81 (the surface of the first notch 812 near the middle of the base 81). The first fixed connection 84' is provided only on the free surface of the positioning block 8, i.e. the surface not in contact with the rest 9 and the other positioning blocks 8. By the abutment of the first fixing connector 84 'against the base 81, the positioning block 8 can be abutted against the adjacent positioning block 8, so as to position other positioning blocks 8 without the first fixing connector 84'.

In this embodiment, since the first fixing connector 84 'and the first ball screw 85' are not engaged with each base 81, they are not part of the positioning block 8.

Application example four

Referring to fig. 16 and 17, in the present embodiment, the difference from the first application example is that, when the positioning block 8 is installed, a base 81 without any fixing mechanism can be placed (the positioning block 8 only has the base 81), so that other required optical elements can be flexibly installed or removed by using the second positioning hole 813 on the base 81 without affecting the positioning. As shown in the figure, an adapter 200 is disposed on the positioning block 8, preferably in the form of a turntable, the adapter 200 has a support leg 201, preferably a metal member with magnetism, which penetrates from the upper surface of the base 81 through the second positioning hole 813 downward into the first positioning hole 15 of the optical panel 1, and the adapter 200, the positioning block 8 and the optical platform are fixed by a magnet 17 disposed in the first positioning hole 15. The leg 201 is slightly smaller than the second positioning hole 813 to avoid affecting the positioning of the positioning block 8. Any optical element, such as a polarizer, may be housed in the adapter 200 without affecting the overall optical system.

Application example five

Referring to fig. 18 and 19, in the present embodiment, the difference from the first application example is that the positioning block 8 may only include the base 81, and the base 81 is no longer provided with the second positioning hole 813 for fixing with the optical panel 1.

The bottom surface of the base 81 is tightly attached to the upper surface of the optical panel 1, a hollow inner cavity 16 is formed in the optical panel 1, the inner cavity 16 can directly penetrate through the upper surface of the optical panel 1, and the inner cavity 16 is communicated with a vacuum pump (not shown), so that the inner cavity 16 can be vacuumized, and the positioning block 8 can be adsorbed. The inner cavity 16 may also pass through the first positioning hole 15 to penetrate the upper surface of the optical panel 1.

In the above embodiments, it is described that the positioning block 8 can be detachably fixed to the optical platform by means of a fastener, a magnet, a press block or a vacuum, thereby increasing the flexibility of assembling the optical system.

Claims (19)

1. An optical system comprises an optical platform, wherein the optical platform comprises a substrate (2) and an optical panel (1) made of brittle materials, the optical panel (1) is arranged on the substrate (2), and the upper surface of the optical panel (1) is a plane;

the optical system further comprises a positioning block (8) used for arranging the optical instrument (100) or the optical element, the positioning block (8) is arranged on the upper surface of the optical panel (1), the substrate (2) and/or the optical panel (1) can be detachably connected with the positioning block (8), and the substrate (2) and the positioning block (8) are directly or indirectly connected.

2. The optical system of claim 1, wherein: the optical panel (1) is fixed with the upper surface of the substrate (2) in an adhesive, mechanical or optical bonding mode.

3. The optical system of claim 1, wherein: the optical platform further comprises an optical flat plate (4) and a pressing block (5), the optical flat plate (4) is located below the substrate (2) and covers the substrate (2) and the optical panel (1) in a projection mode on a horizontal plane, the pressing block (5) is fixed to the portion, located on the periphery of the substrate (2), of the optical flat plate (4), the pressing block (5) is further pressed to the position, close to the edge, of the upper surface of the optical panel (1), and therefore the optical panel (1), the substrate (2) and the optical flat plate (4) are fixed through the pressing block (5).

4. The optical system of claim 3, wherein: an elastic body (6) is arranged between the pressing block (5) and the optical panel (1).

5. The optical system according to any one of claims 1 to 4, characterized in that: the optical panel (1) comprises at least two panel modules (11), the positioning blocks (8) are arranged on the panel modules (11), the panel modules (11) are arranged on the substrate (2) at intervals to be spliced into the optical panel (1), a groove (12) is formed between every two adjacent panel modules (11), the groove (12) is sunken from the upper surface of the optical panel (1) towards the substrate (2), a first fixing piece (3) connected with the positioning blocks (8) is embedded into the groove (12), the first fixing piece (3) is lower than the upper surface of the optical panel (1), and the first fixing piece (3) is fixed with the substrate (2).

6. The optical system according to any one of claims 1 to 4, characterized in that: the optical panel (1) is provided with a groove, the groove is sunken from the upper surface of the optical panel (1) towards the direction of the substrate (2), a second fixing piece (3 ') used for being connected with the positioning block (8) is embedded into the groove, the second fixing piece (3 ') is lower than the upper surface of the optical panel (1), and the second fixing piece (3 ') is fixed with the substrate (2).

7. The optical system of claim 6, wherein: the positioning block is characterized in that the grooves comprise a plurality of first grooves (13) and second grooves (14) which are arranged at an angle, the first grooves (13) and the second grooves (14) are arranged in an array mode, each first groove (13) is arranged between two adjacent second grooves (14), each second groove (14) is arranged between two adjacent first grooves (13), and the positioning block (8) is arranged in an area defined by two first grooves (13) in two adjacent rows and two second grooves (14) in two adjacent columns.

8. The optical system according to any one of claims 1 to 4, characterized in that: the optical panel (1) and the positioning block (8) are fixed in a magnetic attraction mode.

9. The optical system of claim 8, wherein: the optical panel (1) is provided with a first positioning hole (15), the positioning block (8) comprises a base (81), the base (81) is provided with a second positioning hole (813), one of the first positioning hole (15) and the second positioning hole (813) is embedded with a magnet, and the other of the first positioning hole (15) and the second positioning hole (813) is embedded with a magnetic material.

10. The optical system of claim 9, wherein: the positioning blocks (8) are at least two and are arranged adjacently, and the adjacent positioning blocks (8) are magnetically attracted.

11. The optical system of claim 10, wherein: each positioning block (8) further comprises a first fixing block (82) and a second fixing block (83), a first notch (812) is formed in each side wall of the base (81), the side wall refers to a wall surface where the side of the cross section of the base (81) is located, and the first notch (812) is formed by the fact that the surface of the side wall of the base (81) is recessed towards the inner direction of the base (81); the positioning device is characterized in that the first fixing block (82) is arranged above the base (81), a second notch (821) corresponding to the first notch (812) is formed in each side wall of the first fixing block (82), the first notch (812) and the second notch (821) are connected into a whole, the second fixing block (83) is embedded into the first notch (812) and the second notch (821), the second fixing block (83) is fixed with the first fixing block (82), at least two positioning grooves (831) are formed in the outer surface of the second fixing block (83) far away from the first notch (812) and the second notch (821), a magnet is embedded into one positioning groove (831), a magnetic absorption material is embedded into the other positioning groove (831), and magnetic absorption is achieved between the second fixing block (83) of each positioning block (8) and the second fixing block (83) of the adjacent positioning block (8).

12. The optical system of claim 11, wherein: the side walls of the base (81) are located at two sides of the first notch (812) to form a reference surface (811), the reference surface (811) is a plane, the second fixing block (83) is retracted for a certain distance relative to the reference surface (811), the corresponding reference surfaces (811) between the adjacent positioning blocks (8) are abutted to each other, and the bottom surface of the second fixing block (83) is higher than the bottom surface of the base (81).

13. The optical system of claim 11, wherein: the size of the positioning groove (831) embedded with the magnetic material is larger than that of the positioning groove (831) embedded with the magnet.

14. The optical system of claim 9, wherein: the optical system further comprises a leaning body (9), wherein the leaning body (9) is arranged at a position, close to the edge, of the upper surface of the optical panel (1), the positioning blocks (8) are provided with at least two and can be abutted with the leaning body (9), and adjacent positioning blocks (8) are abutted with each other; each side wall of the base (81) is provided with a first notch (812), the side wall refers to a wall surface where the side of the cross section of the base (81) is located, and the first notch (812) is formed by the fact that the surface of the side wall of the base (81) is sunken towards the inner direction of the base (81); the optical system further comprises a first fixing connecting piece (84 ') and a first bead-pushing screw (85 '), wherein the first fixing connecting piece (84 ') is only arranged on the free wall surface of the positioning block (8) which is not contacted with the leaning body (9) and other positioning blocks (8), the first bead-pushing screw (85 ') is screwed in from the side surface of the first fixing connecting piece (84 ') so as to be abutted against the bottom surface of the first notch (812) of the base (81), and therefore adjacent positioning blocks (8) are abutted against each other and the positioning blocks (8) and the leaning body (9) are abutted against each other.

15. The optical system according to any one of claims 1 to 4, characterized in that: the positioning block (8) comprises a base (81), a second fixed connecting piece (84) and a second bead-pushing screw (85), the second fixed connecting piece (84) is directly or indirectly detachably connected with the base plate (2), the second fixed connecting piece (84) is arranged on the side face of the base (81) and at least partially located above the base (81), and the second bead-pushing screw (85) penetrates through the second fixed connecting piece (84) from top to bottom and is tightly abutted to the upper surface of the base (81), so that the positioning block (8) is tightly pressed with the optical platform.

16. The optical system according to any one of claims 1 to 4, characterized in that: a first positioning hole (15) is formed in the optical panel (1), the positioning block (8) comprises a base (81), and a second positioning hole (813) is formed in the base (81); be provided with adapter (200) that are used for setting up optical element on locating piece (8), adapter (200) have stabilizer blade (201), stabilizer blade (201) are the metalwork of taking magnetism, stabilizer blade (201) penetrate downwards through second locating hole (813) from the upper surface of base (81) to the first locating hole (15) of optical panel (1), stabilizer blade (201) and magnet (17) the magnetism of setting in first locating hole (15) are inhaled fixedly.

17. The optical system according to any one of claims 1 to 4, characterized in that: the bottom surface of the positioning block (8) is tightly attached to the upper surface of the optical panel (1), a hollow inner cavity (16) is formed in the optical panel (1), the inner cavity (16) penetrates through the upper surface of the optical panel (1), and the inner cavity (16) is communicated with a vacuum pump, so that the positioning block (8) is adsorbed by vacuumizing.

18. The optical system according to any one of claims 1 to 4, characterized in that: the optical system further comprises a leaning body (9), the leaning body (9) is arranged at a position, close to the edge, of the upper surface of the optical panel (1), the positioning blocks (8) are provided with at least two positioning blocks and can be abutted to the leaning body (9), and the adjacent positioning blocks (8) are abutted to each other.

19. The optical system of claim 18, wherein: the positioning blocks (8) which are abutted against the leaning body (9) and the corresponding leaning body (9) are attracted by magnetic attraction.

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