CN103823286A - Cage type multi-shaft optical system mounting rack - Google Patents

Abstract

A cage type multi-axis optical system installation frame relates to an optical system installation adjustment mechanism. It is to solve the problem that the current optical element mount is not suitable for the multi-axis system. When the present invention is in use, guide rods, optical element mounting frames and pillars are assembled as required, and the guide rods are sequentially passed through the guide rod mounting holes of a plurality of optical element mounting frames to realize a multi-axis optical system structure. When the optical path exists 45 When the degree of reflection is high, the pillars can be fixed on the optical table and pass through the optical element mounting holes of one or more optical element mounting frames, so that the light can propagate along the direction perpendicular to the optical table. In the present invention, the height and direction of each axis can be flexibly adjusted, and it is easy to cooperate with other devices or systems with different heights. The optical system has a compact structure, which can not only realize the construction of a multi-axis optical system in a plane, but also realize multi-axis in space. Construction of the optical system. The invention is applicable to the construction of a multi-axis optical system.

Description

Cage Multi-Axis Optical System Mounts

technical field

The invention relates to an optical system installation adjustment mechanism.

Background technique

The existing optical element mounting bracket has a complex structure, occupies a large area of the operation platform, and the installation position of the optical element is limited. For parallel optical paths, the angle of each optical element needs to be adjusted independently, which is time-consuming and laborious, and the accuracy is difficult to guarantee. Once the relative distance between two optical elements is fixed, it is also difficult to change. In order to solve the above problems, some cage-type single-axis optical component mounting brackets have appeared on the market, but for optical systems with only one central axis, it is not easy to cooperate with other devices or systems with different heights after the optical path is fixed.

Contents of the invention

The object of the present invention is to provide a cage-type multi-axis optical system mounting frame to solve the problem that the current optical element mounting frame is not suitable for the multi-axis system.

The cage type multi-axis optical system mounting frame of the present invention includes at least two optical element mounting frames and at least two guide rods, and at least one optical element mounting hole is arranged on the optical element mounting frame, and each optical element mounting hole Four guide rod installation holes are evenly distributed on the outside of the outer side, and the guide rods pass through the guide rod installation holes of a plurality of optical component mounting frames in turn, and the bottoms of at least two optical component mounting frames are provided with mounting frame fixing holes, and the mounting frames are fixed The holes are used to secure the cage multi-axis optical system mount to the optical table.

The cage-type multi-axis optical system mounting frame also includes N pillars, N is a positive integer, the pillars are cylindrical, and each pillar fixes at least one optical element mounting frame, and the optical element mounting frame passes through the Any one of the optical element installation holes is sleeved and fixed on the support.

The optical element mounting frame is also provided with threaded holes, and the threaded holes are used to fix the optical adjustment frame.

The cage-type multi-axis optical system mounting bracket may also include an adapter plate, the adapter plate is a flat plate structure, and a circular convex structure is arranged in the center of the lower surface of the flat plate, and the circular convex structure The structure is embedded in the optical element mounting hole on the optical element mounting frame, and the upper surface of the flat plate is provided with threaded holes, and the threaded holes are used to fix the optical adjustment frame.

When there are multiple optical component mounting holes on the optical component mounting frame, the centers of the multiple optical component mounting holes are arranged in a rectangular array.

The number of optical element mounting holes on each optical element mounting frame is 1, 2, 3, 4, 6 or 9.

The cage-type multi-axis optical system mounting frame of the present invention includes multiple optical element mounting frames and multiple guide rods. When in use, the guide rods and optical element mounting frames are assembled according to actual needs to realize the multi-axis optical system structure. The height and direction of each axis can be adjusted flexibly, and it is easy to cooperate with other devices or systems with different heights. When there is 45-degree reflection in the optical path, the pillar can be fixed vertically on the optical platform, and the pillar can be inserted through the optical element mounting holes on one or more optical element mounting frames according to actual needs, and other optical element mounting frames can be fixed on the optical element mounting frame. The optical element can realize the propagation of light along the direction perpendicular to the optical table. The present invention can not only realize the construction of the multi-axis optical system in the plane, but also realize the construction of the multi-axis optical system in the space.

Description of drawings

FIG. 1 is a schematic perspective view of the three-dimensional structure of a cage-type multi-axis optical system mounting bracket according to the first embodiment.

FIG. 2 is a schematic structural diagram of a multi-axis optical system mounting frame when there is reflection in the optical path in Embodiment 2. FIG.

FIG. 3 is a schematic structural view of the optical element mounting frame in Embodiment 5. FIG.

FIG. 4 is a schematic structural view of the optical element mounting frame in Embodiment 6. FIG.

FIG. 5 is a schematic structural diagram of an optical solution test experiment built with a cage-type multi-axis optical system mounting bracket in Embodiment 10. FIG.

6 is a schematic structural diagram of a double-slit interference experiment built with a cage-type multi-axis optical system mounting bracket in Embodiment 11. FIG.

FIG. 7 is a schematic structural diagram of an adapter board in Embodiment 4. FIG.

Detailed ways

Specific Embodiment 1: This embodiment is described with reference to FIG. 1 and FIG. 2. The cage-type multi-axis optical system mounting frame described in this embodiment includes at least two optical element mounting frames and at least two guide rods. At least one optical element mounting hole is provided on the frame, and four guide rod mounting holes are evenly distributed on the outside of each optical element mounting hole. The bottom of the component mounting frame is provided with a mounting frame fixing hole, and the mounting frame fixing hole is used for fixing the cage multi-axis optical system mounting frame on an optical platform.

The cage-type multi-axis optical system mounting frame described in this embodiment includes multiple optical element mounting frames and multiple guide rods. When in use, the number of optical element mounting frames and guide rods, the optical The number of component mounting holes and the arrangement of the optical component mounting holes on each optical component case holder, each optical component mounting frame is fixed in height by at least two guide rods, and the optical component mounting frame can slide along the guide rods to adjust The relative distance of two optical elements. The structure shown in FIG. 1 can at least realize an optical system with three axes. In addition, the optical component holder can also be used separately, and it can be fixed on the optical table by screws.

Specific Embodiment 2: This embodiment is described in conjunction with FIG. 2. This embodiment is a further limitation of the cage multi-axis optical system mounting bracket described in Embodiment 1. In this embodiment, the cage multi-axis optical system is mounted The frame also includes N pillars, N is a positive integer, the pillars are cylindrical, and each pillar fixes at least one optical element mounting frame, and the optical element mounting frame is fixed on the optical element mounting hole through any one of the optical element mounting holes. on the pillar.

In practical applications, the optical element mounting frame is fixedly connected to the pillar through a jacking screw. When there is 45-degree reflection in the optical path, the pillar can be fixed vertically on the optical platform, and the pillar can be inserted through the optical element mounting holes on one or more optical element mounting frames according to actual needs, and other optical element mounting frames can be fixed on the optical element mounting frame. The optical element can realize the propagation of light along the direction perpendicular to the optical table.

Specific Embodiment Three: This embodiment is a further limitation of the cage-type multi-axis optical system mounting frame described in Embodiment 2. In this embodiment, the optical element mounting frame is also provided with threaded holes, and the threaded The holes are used to fix the optical adjustment mount.

In this embodiment, the optical adjustment frame is installed on the optical element mounting frame, and other optical elements are added to the optical adjustment frame to meet the needs of different optical systems, and the propagation of light in space can be realized.

Specific Embodiment 4: This embodiment is described in conjunction with FIG. 7. This embodiment is a further limitation of the cage multi-axis optical system mounting bracket described in Embodiment 2. In this embodiment, the cage multi-axis optical system The mounting frame also includes an adapter plate, the adapter plate is a flat plate structure, and a circular protruding structure is arranged in the center of the lower surface of the plate, and the circular protruding structure is embedded and fixed on the optical element mounting frame In the mounting hole of the optical element, the upper surface of the flat plate is provided with threaded holes, and the threaded holes are used to fix the optical adjustment frame.

When it is inconvenient to directly fix the optical adjustment bracket on the optical component mounting bracket, it can be fixed through an adapter plate. The diameter of the circular convex structure on the adapter plate is equal to the diameter of the optical element mounting hole on the optical element mounting frame, and other optical elements are added to the optical adjustment frame to meet the needs of different optical systems and to realize the light in the space. Spread.

Specific Embodiment 5: This embodiment is described in conjunction with FIG. 3 . This embodiment is a further limitation of the cage multi-axis optical system mounting frame described in Embodiment 1: the optical element mounting frame provided with mounting frame fixing holes A long groove communicating with the fixing hole of the mounting frame is provided on the upper side and below the mounting hole of the optical element adjacent to the fixing hole of the mounting frame.

The mounting bracket fixing holes and the long slots in this embodiment are used to fix the cage multi-axis optical system mounting bracket on the optical table. This fixing method does not occupy additional space and is very suitable for compact optical systems.

Embodiment 6: This embodiment is described in conjunction with FIG. 4. This embodiment is a further limitation of the cage-type multi-axis optical system mounting frame described in Embodiment 2: the side of the optical element mounting frame is provided with at least one concave A groove, the bottom surface of the groove is provided with a threaded hole, the threaded hole communicates with an optical element mounting hole, and the threaded hole is used to fix the optical element mounting frame on the pillar.

A threaded hole is provided on the side of the optical element mounting frame, and the threaded hole can be used to fix the optical element mounting frame on the support, and can also be used to fix other optical elements.

Specific Embodiment 7: This embodiment is described with reference to FIG. 1 and FIG. 4 . This embodiment is a further limitation of the cage multi-axis optical system mounting bracket described in Embodiments 1 to 6: there are multiple Optical element installation holes, the centers of the plurality of optical element installation holes are arranged in a rectangular array.

Embodiment 8: This embodiment is described in conjunction with FIG. 4 . This embodiment is a further limitation of the cage multi-axis optical system mounting frame described in Embodiment 7: the optical element mounting hole on each optical element mounting frame The number is 1, 2, 3, 4, 6 or 9.

In this embodiment, when the number of optical element mounting holes is 2 or 3, the optical element mounting holes can be arranged in a horizontal or vertical direction; in practical applications, optical systems that are distributed in a large area along a certain direction are rarely involved. Therefore, when the number of mounting holes for optical components is 4, it can be set in a 2X2 rectangular array instead of a 1X4 or 4X1 matrix; when the number of mounting holes for optical components is 6, it can be set in a 2X3 or 3X2 rectangular array; When the number of mounting holes is 9, it can be set in a 3X3 rectangular array.

Ninth specific embodiment: This embodiment is a further limitation of the cage multi-axis optical system mounting frame described in the eighth embodiment: the thickness of the optical element mounting frame is 10mm.

Embodiment 10: This embodiment is described in conjunction with FIG. 5. This embodiment is an illustration of the method of using the cage multi-axis optical system mounting bracket described in Embodiments 1 to 9: in this embodiment, the cage multi-axis optical system The system mount is used for optical solution test experiments. In Fig. 4, LED1, polarizer 2, sample tank 3, polarizer 4, lens 5 and CCD6 are listed from right to left. Wherein, the sample tube tank 4 is filled with an optically active solution, and the polarizer 4 can display the direction of linearly polarized light.

There are two types of optical component mounting frames used in this experiment, one is a single-hole optical component mounting frame, and the other is a three-hole optical component mounting frame. Among them, LED1 is fixed on the three-hole optical component mounting frame, and the left side of LED1 is a nano-micro-movement translation platform, and a polarizer 2 is installed in the round hole of the nano-micro-motion translation platform, and the left side of the polarizer 2 is a fixed support. Functional three-hole optical element mounting frame, the left side of the three-hole optical element mounting frame is the sample slot 3, and the left side of the sample slot 3 is a three-hole optical element mounting frame that acts as a fixed support, the three-hole optical element mounting frame The left side is the polarizer 4, and the polarizer 4 is fixed on the single-hole optical element mounting frame. The left side of the component mounting frame is a lens 5, and the lens 5 is fixed on the single-hole optical element mounting frame. The left side of the mounting frame is the CCD6, and the left side of the CCD6 is the three-hole optical element mounting frame that acts as a fixed support.

In this embodiment, the original polarizer is replaced by the polarizer 4 to realize the visualization and real-time detection of linearly polarized light, and the angle of incident ray polarized light and linearly polarized light The rotation angle of the vibration plane after passing through the optical active solution reduces the error caused by mechanical rotation and improves the detection accuracy, and the polarization direction of linearly polarized light can be displayed on the PC in real time, thereby realizing the real-time observation of the polarization state change. At the same time, it can be easily judged whether the substance in the sample tube is a left-handed substance or a right-handed substance.

In the experiment, the light emitted by the LED propagates along a straight line, the entire optical path has only one main axis, and the light emitted by the LED1 is incident on the center of the polarizer 4. This experiment has strict requirements on the position of the center of the polarizer 4. The cage-type multi-axis optical system mounting frame described above can strictly ensure the center position of the polarizer 4, and the whole experimental system is easy to adjust, without adjusting the position and angle of the optical elements, only need to install each optical element on each side of the same optical axis. The optical components can be installed in the holes, and the optical path is convenient and time-saving. Compared with the traditional optical adjustment frame, the volume of the whole experimental system is reduced by at least 50%.

Embodiment 11: This embodiment is described in conjunction with FIG. 6. This embodiment is an example of the method of using the cage multi-axis optical system mounting bracket described in Embodiments 1 to 9: in this embodiment, the cage multi-axis The optical system mount is used for double-slit interference experiments. In Fig. 5, from right to left, there are laser 7, lens 8 (with a focal length of 30mm), pinhole 9, lens 10 (with a focal length of 100mm), polarizer 11, SLM12 (that is, spatial light modulator), and double slit 13 , Analyzer 14, lens 15, aperture 16 and CCD17.

There are two types of optical component mounting frames used in this experiment, one is a single-hole optical component mounting frame, and the other is a three-hole optical component mounting frame. The three-hole optical element mounting frame is used to fix and support the entire optical system, and each optical element is fixed on the single-hole optical element mounting frame.

Put the SLM into the traditional Young's double-slit interference system, by changing the gray value of the SLM12, the movement of the interference fringes can be observed on the CCD17, and the characteristics of the Young's double-slit interference can be observed and analyzed online. Using MATLAB to process the measured interference fringe images under different phase values, the movement of the interference fringes can be calculated accurately. Using software, the gray value of SLM-LC2002 corresponding to one slit is fixed at 0, and the gray value of the other slit is changed from 0-255, and the relative displacement of the interference pattern on the CCD is recorded at the same time.

With the cage-type multi-axis optical system mounting bracket described in this embodiment, it is sufficient to directly fix each optical element in the optical element mounting hole, and each optical element can freely adjust its position along the optical axis direction. The entire optical path is easy to install and adjust, which saves time and space.

Claims (9)

1. cage multiaxis optical system erecting frame, it is characterized in that: it comprises at least two optical element installation supports and at least two guide rods, on described optical element installation support, be provided with at least one optical element mounting hole, the outside of each optical element mounting hole is uniformly distributed and is provided with four guide rod mounting holes, guide rod runs through the guide rod mounting hole of multiple optical element installation supports successively, the bottom of at least two optical element installation supports is provided with erecting frame fixed orifice, and described erecting frame fixed orifice is for being fixed on optical table by described cage multiaxis optical system erecting frame.

2. cage multiaxis optical system erecting frame according to claim 1, it is characterized in that: it also comprises N pillar, N is positive integer, described pillar is cylindrical, every pillar is at least fixed an optical element installation support, and described optical element installation support is fixed on described pillar by any one the optical element mounting hole on it.

3. cage multiaxis optical system erecting frame according to claim 2, is characterized in that: on described optical element installation support, be also provided with threaded hole, described threaded hole is used for fixing optical adjusting frame.

4. cage multiaxis optical system erecting frame according to claim 2, it is characterized in that: it also comprises card extender, described card extender is plate-like structure, central authorities at the lower surface of described flat board are provided with circular protrusion structure, described circular protrusion structure is mounted in the optical element mounting hole on optical element installation support, the upper surface of described flat board is provided with threaded hole, and described threaded hole is used for fixing optical adjusting frame.

5. cage multiaxis optical system erecting frame according to claim 1, is characterized in that: on the described optical element installation support that is provided with erecting frame fixed orifice, the optical element mounting hole adjacent with described erecting frame fixed orifice below be provided with the elongated slot communicating with erecting frame fixed orifice.

6. cage multiaxis optical system erecting frame according to claim 2, it is characterized in that: the side of described optical element installation support has at least one groove, the bottom surface of described groove is provided with threaded hole, described threaded hole communicates with an optical element mounting hole, and described threaded hole is for being fixed on pillar by optical element installation support.

7. according to the cage multiaxis optical system erecting frame described in any one in claim 1 to 6, it is characterized in that: on described optical element installation support, have multiple optical element mounting holes, the rectangular array arrangement in center of described multiple optical element mounting holes.

8. cage multiaxis optical system erecting frame according to claim 7, is characterized in that: the quantity of the optical element mounting hole on each described optical element installation support is 1,2,3,4,6 or 9.

9. cage multiaxis optical system erecting frame according to claim 8, is characterized in that: the thickness of described optical element installation support is 10mm.

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