Precise continuous adjustable light delay line manufacturing device

Abstract

The utility model provides a precise and continuously adjustable light delay line manufacturing device, which relates to the technical field of optics and comprises a linear motion motor sliding table, a hollow retroreflector and a light delay line, the miniature adjustable total-reflection mirror group is arranged at one end, close to the reflecting surface of the hollow retroreflector, of the linear motion motor sliding table, and incident light is emitted into the miniature adjustable total-reflection mirror group, then is reflected for multiple times between the miniature adjustable total-reflection mirror group and the hollow retroreflector and then is emitted out; the hollow retroreflector slides on the linear motion motor sliding table to adjust the distance between the hollow retroreflector and the miniature adjustable total reflection mirror set so as to increase the time delay of light emitting. The linear motion motor sliding table has the advantages that light is reflected for multiple times between the miniature adjustable total reflection mirror set and the hollow retroreflector to achieve light delay, due to the fact that the light can be reflected for multiple times, the light delay range is large, the linear motion motor sliding table can be continuously adjusted, the delay precision is high, and meanwhile the linear motion motor sliding table has the advantages of being small in size, capable of being continuously adjusted and large in light delay range.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to a precise and continuously adjustable optical delay line manufacturing device. Background Art

[0002] Optical delay lines are an important component of high-precision optical information and time-frequency conversion systems, and have important applications in optical information detection, space-time compensation, and fluorescence detection.

[0003] Traditional optical delay lines are generally divided into two types. One is to cascade multiple optical switches and switch the optical switches to different lengths of optical fiber to obtain different delay amounts. The advantage of this method is that it is small in size and easy to integrate on a large scale, but the disadvantage is that the delay amount is discontinuous and cannot be continuously adjusted. Another method is to change the optical path through a mechanical structure, and to drive the reflector and other structures to achieve optical delay by manually / electrically controlling the movement of the translation stage. The advantage of this method is that it can be continuously adjusted and has high delay accuracy, but the disadvantage is that the delay range is small, generally within the order of 50cm (1500ps). If a large range of delay is to be achieved, the volume of the delay line will also increase accordingly. Although a larger range of delay can be achieved by adding multiple layers of prisms and multiple reflections, the volume is still large and the structure is complex, and the delay amount cannot be increased very much. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a precise and continuously adjustable optical delay line manufacturing device, comprising:

[0005] A linear motion motor slide, wherein a hollow retroreflector is mounted on the linear motion motor slide;

[0006] A micro-adjustable total reflector group is arranged at one end of the linear motion motor slide close to the reflective surface of the hollow retroreflector, and the incident light enters the micro-adjustable total reflector group and then is reflected multiple times between the micro-adjustable total reflector group and the hollow retroreflector before being emitted;

[0007] The hollow reflector is slid on the linear motion motor slide to adjust the distance between the hollow reflector and the micro adjustable total reflector group, so as to increase the time delay of light emission.

[0008] Preferably, the micro adjustable total reflective mirror assembly comprises:

[0009] A bracket, the bracket being arranged at one end of the linear motion motor slide located on the reflective surface of the hollow retroreflector;

[0010] An optical path mounting plate, the optical path mounting plate being mounted on the top of the bracket;

[0011] A plurality of micro-adjustable total reflector frames are respectively mounted on the optical path mounting plate, and the reflective surface direction of each micro-adjustable total reflector frame is adjustable so as to receive the light reflected by the hollow reflector to form a reflective light path between the micro-adjustable total reflector group and the hollow reflector.

[0012] Preferably, the optical path installation plate comprises an upper optical path installation plate and a lower optical path installation plate;

[0013] The lower optical path installation plate is installed on the top of the bracket, and the upper optical path installation plate is also installed on the upper surface of the lower optical path installation plate;

[0014] A plurality of the micro-adjustable total-reflection mirror frames are respectively mounted on the upper optical path mounting plate and the lower optical path mounting plate.

[0015] Preferably, the micro-adjustable full-reflective mirror frame set includes:

[0016] The first micro-adjustable total reflector frame, the second micro-adjustable total reflector frame, the third micro-adjustable total reflector frame and the fourth micro-adjustable total reflector frame are mounted on the lower optical path mounting board, and the fifth micro-adjustable total reflector frame and the sixth micro-adjustable total reflector frame are mounted on the upper optical path mounting board;

[0017] The first micro-adjustable total reflector frame receives the incident light and reflects it to the hollow reflector, the second micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the first time and reflects it to the third micro-adjustable total reflector frame, the third micro-adjustable total reflector frame then reflects it to the hollow reflector, the fourth micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the second time and reflects it to the fifth micro-adjustable total reflector frame, the fifth micro-adjustable total reflector frame then reflects it to the hollow reflector, the second micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the third time and reflects it to the third micro-adjustable total reflector frame, the third micro-adjustable total reflector frame then reflects it to the hollow reflector, the sixth micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the fourth time and emits it, thereby completing multiple reflections of the incident light between the micro-adjustable total reflector group and the hollow reflector.

[0018] Preferably, each of the micro-adjustable full-reflective mirror frames comprises:

[0019] A full-reflection mirror fixture, wherein a reflector is clamped in the full-reflection mirror fixture;

[0020] An adjustment frame front plate and an adjustment frame rear plate, wherein the total reflective mirror fixture is mounted on the adjustment frame front plate, and the adjustment frame rear plate is mounted on the optical path mounting plate;

[0021] The front plate of the adjustment frame and the rear plate of the adjustment frame are connected via a plurality of adjustment knobs, and the angle between the front plate of the adjustment frame and the rear plate of the adjustment frame is adjusted by rotating the adjustment knobs to adjust the orientation of the reflector.

[0022] Preferably, a hollow retroreflector bracket is installed on the slider in the linear motion motor slide, and the hollow retroreflector bracket includes a pair of triangular support clamps, a hollow retroreflector mounting plate is fixed between the triangular support clamps, the hollow retroreflector is installed on the hollow retroreflector mounting plate, and the reflective surface of the hollow retroreflector faces the miniature adjustable total reflector group.

[0023] Preferably, it also includes a device mounting base, the bracket and the linear motion motor slide are both mounted on the device mounting base, a plurality of moving handles are mounted on the device mounting base, and a plurality of elevated pads are mounted on the bottom of the device mounting base.

[0024] The above technical solution has the following advantages or beneficial effects: light is reflected multiple times between the micro-adjustable total reflector group and the hollow reflector to achieve light delay. Since multiple reflections can be performed, the light delay range is large, and the micro-adjustable total reflector group is small in size and suitable for more scenes. Furthermore, a linear motion motor slide is provided, which can adjust the distance between the micro-adjustable total reflector group and the hollow reflector to increase the optical path of the light and further increase the range of light delay. The linear motion motor slide can be continuously adjusted, so that the delay accuracy is high. At the same time, it has the advantages of small size, continuous adjustment and large light delay range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a precise and continuously adjustable optical delay line manufacturing device in a preferred embodiment of the utility model;

[0026] Figure 2 This is a structural schematic diagram of a micro-adjustable total reflective mirror group 3 in a preferred embodiment of the utility model;

[0027] Figure 3 This is a schematic structural diagram of a micro-adjustable total reflector frame in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to the implementation mode, and other implementation modes may also fall within the scope of the present invention as long as they meet the purpose of the present invention.

[0029] In a preferred embodiment of the utility model, based on the above problems existing in the prior art, a precise and continuously adjustable optical delay line manufacturing device is provided. Figure 1 As shown, including:

[0030] A linear motion motor slide 1, on which a hollow retroreflector 2 is mounted;

[0031] The micro-adjustable total reflector group 3 is arranged at one end of the reflective surface of the linear motion motor slide 1 close to the hollow retroreflector 2. The incident light enters the micro-adjustable total reflector group 3 and then reflects multiple times between the micro-adjustable total reflector group 3 and the hollow retroreflector 2 before being emitted.

[0032] The hollow retroreflector 2 is slid on the linear motion motor slide 1 to adjust the distance between the hollow retroreflector 2 and the micro-adjustable total reflector group 3 to increase the time delay of light emission.

[0033] Specifically, in the present embodiment, a micro-adjustable total reflector group 3 and a hollow reflector 2 are provided, and light is reflected multiple times between the micro-adjustable total reflector group 3 and the hollow reflector 2 to realize light delay. Since multiple reflections can be performed, the light delay range is relatively large, and the micro-adjustable total reflector group is relatively small in size and is suitable for more scenes. Furthermore, a linear motion motor slide 1 is provided, which can adjust the distance between the micro-adjustable total reflector group 3 and the hollow reflector 2 to increase the optical path of the light and further increase the range of light delay, and the linear motion motor slide 1 can be continuously adjusted to achieve high delay accuracy. Therefore, in summary, the optical delay line production device of the utility model has the advantages of small size, continuous adjustment, and large light delay range.

[0034] In the preferred embodiment of the present utility model, the micro-adjustable total reflective mirror group 3 is as follows Figure 2 Shown include:

[0035] A bracket 31, the bracket 31 is arranged at one end of the linear motion motor slide 1 located on the reflective surface of the hollow retroreflector 2;

[0036] An optical path mounting plate 32, the optical path mounting plate 32 is mounted on the top of the bracket 31;

[0037] Multiple micro-adjustable total reflector frames 33 are respectively mounted on the optical path mounting plate 32, and the reflective surface direction of each micro-adjustable total reflector frame 33 is adjustable so that it can receive the light reflected by the hollow reflector 2 to form an optical path between the micro-adjustable total reflector group 3 and the hollow reflector 2.

[0038] In this embodiment, Figure 3 As shown, each micro-adjustable full-reflection mirror frame 33 includes:

[0039] A total reflective mirror fixture 331, wherein a reflective mirror is clamped in the total reflective mirror fixture 331;

[0040] An adjustment frame front plate 332 and an adjustment frame rear plate 333, the full-mirror fixture 331 is mounted on the adjustment frame front plate 332, and the adjustment frame rear plate 333 is mounted on the optical path mounting plate 32;

[0041] The adjustment frame front plate 332 and the adjustment frame rear plate 333 are connected via a plurality of adjustment knobs 334 , and the angle between the adjustment frame front plate 332 and the adjustment frame rear plate 333 is adjusted by rotating the adjustment knobs 334 to adjust the orientation of the reflector.

[0042] Specifically, in this embodiment, the orientation of the reflector in each micro-adjustable total reflector frame 33 can be adjusted by adjusting the adjustment knob 334 between the adjustment frame front plate 332 and the adjustment frame rear plate 333 to change the width of the gap between the adjustment frame front plate 332 and the adjustment frame rear plate 333 to adjust the angle between the adjustment frame front plate 332 and the adjustment frame rear plate 333, thereby changing the orientation of the reflector. Specifically, as Figure 3 As shown, an adjustment knob 334 is respectively provided at the lower left corner and the upper right corner of the adjustment frame front plate 333 and the adjustment frame rear plate 332, so that the distance between the lower left corner and the upper right corner of the adjustment frame front plate 332 and the adjustment frame rear plate 333 is unequal by adjusting the knob 334, so that the angle between the adjustment frame front plate 332 and the adjustment frame rear plate 333 is changed, thereby changing the direction of the reflector.

[0043] The micro-adjustable total reflector group 3 includes multiple micro-adjustable total reflector frames 33. After the optical path between the micro-adjustable total reflector group 3 and the hollow reflector 2 is adjusted by the linear motion motor slide 1, the directions of the reflectors in each micro-adjustable total reflector frame 33 are adjusted in turn to form an optical path between the micro-adjustable total reflector group 3 and the hollow reflector 2, completing as many reflections as possible to maximize the light delay range.

[0044] The micro-adjustable total-reflecting mirror frame 33 in this embodiment has the advantages of simple structure and small size. Each micro-adjustable total-reflecting mirror frame 33 can be adjusted and controlled individually, which reduces the difficulty of aligning the light path under multiple reflections.

[0045] In a preferred embodiment of the present utility model, the optical path installation plate 32 includes an upper optical path installation plate 321 and a lower optical path installation plate 322;

[0046] The lower optical path mounting plate 322 is mounted on the top of the bracket 31, and the upper optical path mounting plate 321 is also mounted on the upper surface of the lower optical path mounting plate 322;

[0047] A plurality of micro-adjustable total-reflection mirror frames 33 are respectively mounted on the upper optical path mounting plate 321 and the lower optical path mounting plate 322 .

[0048] Specifically, in the present embodiment, the design structure of a single-layer optical path often results in a smaller number of light reflections when the number of reflectors is limited, so a double-layer optical path design is adopted in the present embodiment, and a plurality of micro-adjustable total-reflecting mirror frames 33 are respectively mounted on the upper optical path mounting plate 321 and the lower optical path mounting plate 322, and the orientations of the reflectors in each micro-adjustable total-reflecting mirror frame are adjusted in the manner described in the aforementioned embodiments to construct a double-layer optical path to increase the number of reflections and increase the delay range of light.

[0049] In a preferred embodiment of the present utility model, the micro-adjustable full-reflection mirror frame set 3 includes:

[0050] The first micro-adjustable total reflector frame 100, the second micro-adjustable total reflector frame 200, the third micro-adjustable total reflector frame 300 and the fourth micro-adjustable total reflector frame 400 are installed on the lower optical path mounting plate 322, and the fifth micro-adjustable total reflector frame 500 and the sixth micro-adjustable total reflector frame 600 are installed on the upper optical path mounting plate 321;

[0051] The first micro-adjustable total reflector frame 100 receives the incident light and reflects it to the hollow reflector 2, the second micro-adjustable total reflector 200 receives the light reflected by the hollow reflector 2 for the first time and reflects it to the third micro-adjustable total reflector 300, the third micro-adjustable total reflector 300 reflects it to the hollow reflector 2, the fourth micro-adjustable total reflector frame 400 receives the light reflected by the hollow reflector for the second time and reflects it to the fifth micro-adjustable total reflector frame 500, the fifth micro-adjustable total reflector frame 500 reflects it to the hollow reflector 2, the second micro-adjustable total reflector frame 200 receives the light reflected by the hollow reflector 2 for the third time and reflects it to the third micro-adjustable total reflector frame 300, the third micro-adjustable total reflector frame 300 reflects it to the hollow reflector 2, the sixth micro-adjustable total reflector frame 600 receives the light reflected by the hollow reflector 2 for the fourth time and emits it, completing multiple reflections of the incident light between the micro-adjustable total reflector group 3 and the hollow reflector 2. exist Figure 1 and Figure 2 The “cylinder” drawn around each micro-adjustable total reflector frame 33 represents the path of light reflected on the micro-adjustable total reflector frame 33, rather than a solid object. The incident light is X, and the emitted light is Y.

[0052] Specifically, in this embodiment, a total of 6 micro-adjustable full-reflection mirror frames are provided, 2 and 4 are provided on the upper layer and the lower layer, respectively. Figure 2As shown, the light enters the first micro-adjustable full-reflection mirror frame 100, and then the path is hollow reflector 2-second micro-adjustable full-reflection mirror frame 200-third micro-adjustable full-reflection mirror frame 300-hollow reflector 2-fourth micro-adjustable full-reflection mirror frame 400-fifth micro-adjustable full-reflection mirror frame 500-hollow reflector 2-second micro-adjustable full-reflection mirror frame 200-third micro-adjustable full-reflection mirror frame 300-hollow reflector 2-sixth micro-adjustable full-reflection mirror frame 600-emitted. It can be seen that a total of 8 reflections are completed between the micro-adjustable full-reflection mirror frame group and the hollow reflector, that is, the light runs through 8 times the optical path between the micro-adjustable full-reflection mirror frame group and the hollow reflector, which greatly increases the delay range of the light. In addition, the linear motion motor slide can continuously and accurately adjust the optical path between the micro-adjustable full-reflection mirror frame group and the hollow reflector, so the continuous and high-precision adjustment of the light delay range can be achieved.

[0053] In a preferred embodiment of the utility model, a hollow retroreflector bracket 4 is installed on the slider in the linear motion motor slide 1, and the hollow retroreflector bracket 4 includes a pair of triangular support clamps 41, and a hollow retroreflector mounting plate 42 is fixed between the triangular support clamps 41. The hollow retroreflector 2 is installed on the hollow retroreflector mounting plate 42, and the reflecting surface of the hollow retroreflector 2 faces the micro-adjustable total reflector group 3.

[0054] In this embodiment, the fixation of the two triangular support clips 41 can increase the stability of the hollow retroreflector 2, thereby avoiding problems such as positional displacement of the hollow retroreflector 2 during the process of adjusting the optical path of the linear motion motor slide.

[0055] In a preferred embodiment of the present invention, Figure 1 As shown, the device also includes a mounting base 5, on which the bracket 31 and the linear motion motor slide 1 are both mounted. A plurality of moving handles 51 are mounted on the mounting base 5, and a plurality of elevated pads 52 are mounted at the bottom of the mounting base 5.

[0056] Specifically, in this embodiment, all the aforementioned components are installed on the mounting base 5, and the optical delay line manufacturing device provided by the utility model can be conveniently moved by moving the handle 51, and the elevation pad 52 can reduce the impact of uneven placement on the optical delay line manufacturing.

[0057] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of this specification and illustrations should be included in the protection scope of the present invention.

Claims

1. A precise and continuously adjustable optical delay line manufacturing device, characterized in that: include: A linear motion motor slide, wherein a hollow retroreflector is mounted on the linear motion motor slide; A micro-adjustable total reflector group is arranged at one end of the linear motion motor slide close to the reflective surface of the hollow retroreflector, and the incident light enters the micro-adjustable total reflector group and then is reflected multiple times between the micro-adjustable total reflector group and the hollow retroreflector before being emitted; The hollow reflector is slid on the linear motion motor slide to adjust the distance between the hollow reflector and the micro adjustable total reflector group, so as to increase the time delay of light emission.

2. The optical delay line manufacturing device according to claim 1, characterized in that: The micro adjustable total reflection mirror assembly comprises: A bracket, the bracket being arranged at one end of the linear motion motor slide located on the reflective surface of the hollow retroreflector; An optical path mounting plate, the optical path mounting plate being mounted on the top of the bracket; A plurality of micro-adjustable total reflector frames are respectively mounted on the optical path mounting plate, and the reflective surface direction of each micro-adjustable total reflector frame is adjustable so as to receive the light reflected by the hollow reflector to form a reflective light path between the micro-adjustable total reflector group and the hollow reflector.

3. The optical delay line manufacturing device according to claim 2, characterized in that: The optical path installation plate comprises an upper optical path installation plate and a lower optical path installation plate; The lower optical path installation plate is installed on the top of the bracket, and the upper optical path installation plate is also installed on the upper surface of the lower optical path installation plate; A plurality of the micro-adjustable total-reflection mirror frames are respectively mounted on the upper optical path mounting plate and the lower optical path mounting plate.

4. The optical delay line manufacturing device according to claim 3, characterized in that: The micro-adjustable full-reflection mirror frame set includes: The first micro-adjustable total reflector frame, the second micro-adjustable total reflector frame, the third micro-adjustable total reflector frame and the fourth micro-adjustable total reflector frame are mounted on the lower optical path mounting board, and the fifth micro-adjustable total reflector frame and the sixth micro-adjustable total reflector frame are mounted on the upper optical path mounting board; The first micro-adjustable total reflector frame receives the incident light and reflects it to the hollow reflector, the second micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the first time and reflects it to the third micro-adjustable total reflector frame, the third micro-adjustable total reflector frame then reflects it to the hollow reflector, the fourth micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the second time and reflects it to the fifth micro-adjustable total reflector frame, the fifth micro-adjustable total reflector frame then reflects it to the hollow reflector, the second micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the third time and reflects it to the third micro-adjustable total reflector frame, the third micro-adjustable total reflector frame then reflects it to the hollow reflector, the sixth micro-adjustable total reflector frame receives the light reflected by the hollow reflector for the fourth time and emits it, thereby completing multiple reflections of the incident light between the micro-adjustable total reflector group and the hollow reflector.

5. The optical delay line manufacturing device according to claim 2, characterized in that: Each of the micro-adjustable full-reflection mirror frames comprises: A full-reflection mirror fixture, wherein a reflector is clamped in the full-reflection mirror fixture; An adjustment frame front plate and an adjustment frame rear plate, wherein the total reflective mirror fixture is mounted on the adjustment frame front plate, and the adjustment frame rear plate is mounted on the optical path mounting plate; The front plate of the adjustment frame and the rear plate of the adjustment frame are connected via a plurality of adjustment knobs, and the angle between the front plate of the adjustment frame and the rear plate of the adjustment frame is adjusted by rotating the adjustment knobs to adjust the orientation of the reflector.

6. The optical delay line manufacturing device according to claim 1, characterized in that: A hollow retroreflector bracket is installed on the slider in the linear motion motor slide, and the hollow retroreflector bracket includes a pair of triangular support clamps, a hollow retroreflector mounting plate is fixed between the triangular support clamps, the hollow retroreflector is installed on the hollow retroreflector mounting plate, and the reflective surface of the hollow retroreflector faces the miniature adjustable total reflector group.

7. The optical delay line manufacturing device according to claim 2, characterized in that: It also includes a device mounting base, the bracket and the linear motion motor slide are both mounted on the device mounting base, a plurality of moving handles are mounted on the device mounting base, and a plurality of elevated pads are mounted on the bottom of the device mounting base.

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