CN221007990U - Light intensity wave band selecting device for measuring equipment - Google Patents
Light intensity wave band selecting device for measuring equipment Download PDFInfo
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- CN221007990U CN221007990U CN202323178055.5U CN202323178055U CN221007990U CN 221007990 U CN221007990 U CN 221007990U CN 202323178055 U CN202323178055 U CN 202323178055U CN 221007990 U CN221007990 U CN 221007990U
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- 239000013307 optical fiber Substances 0.000 claims abstract description 46
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The utility model provides a light intensity wave band selecting device which comprises a supporting seat, an optical fiber seat and a light intensity wave band switching mechanism. The optical fiber seat is connected with the optical fibers and is arranged at two ends of the supporting seat, and incident light rays are emitted from the optical fibers at the other end through the cavities. The light intensity wave band switching mechanism is provided with a moving seat and a driving device, wherein the moving seat is provided with at least two optical filter bearing positions, and the driving device drives the moving seat to move so as to switch any optical filter to be arranged in the light transmission path. The device has the advantages that: 1) The two ends of the supporting seat are provided with optical fiber seats, so that light beams can be quickly led in; 2) The light intensity wave band switching mechanism is provided with a light filter switching mechanism, and the light intensity and wave band of the light beam can be adjusted; 3) The parabolic mirror is arranged in the cavity, so that the light beam propagation path can be changed, and the receiving angle range of the optical filter can be enlarged.
Description
Technical Field
The utility model relates to optical fiber transmission, in particular to an optical intensity wave band selecting device used in measuring equipment.
Background
In optical path transmission, a part of the structure of the far optical path generally adopts an optical fiber transmission mode. The optical fiber transmission is a communication mode for transmitting information in fibers made of glass or plastic by utilizing light waves, has the advantages of long transmission distance, high transmission speed, large transmission capacity, strong anti-interference capability and the like, and is widely applied to modern communication and network systems.
However, in fiber optic transmission, it is difficult to achieve selection of different spectral ranges and switching between different light intensity states if necessary. This is mainly because optical fibers have a strong selectivity for the propagation of light, and the propagation speed and refractive index of light of different wavelengths in the optical fibers are different, so that precise control and adjustment are required to achieve selection of different spectral ranges and switching between different light intensity states.
The patent mainly solves the problem that light intensity energy attenuation and spectrum range selection are difficult.
Disclosure of utility model
The utility model provides a light intensity wave band selecting device used in measuring equipment, which comprises:
The support seat is internally provided with a cavity;
The optical fiber seat is used for connecting optical fibers and is arranged at two ends of the supporting seat, and incident light rays of the optical fibers connected to one end of the supporting seat are emitted from the optical fibers at the other end of the supporting seat through the cavity;
The light intensity wave band switching mechanism is provided with a moving seat and a driving device, wherein the moving seat is provided with at least two optical filter bearing positions for installing optical filters with different specifications, and the driving device drives the moving seat to move so as to switch any optical filter to be arranged in a light transmission path.
Further, the optical fiber is connected with an optical fiber connector, and the optical fiber connector is connected with the optical fiber seat in a quick-dismantling mode.
Further, the light intensity band selecting device further comprises a reflecting device positioned in the cavity, and the reflecting device is used for changing the light transmission path in the cavity.
Further, the reflecting device comprises at least one pair of parabolic mirrors, the supporting seat is provided with at least one pair of parabolic mirror mounting holes which are respectively arranged at two sides, and the parabolic mirrors are quickly detached from the parabolic mirror mounting holes and extend into the cavity;
At least one set of light intensity wave band switching mechanism is arranged between each pair of parabolic mirrors.
Further, the support base is provided with at least two optical fiber bases, at least one optical fiber base is used for being connected with an optical fiber connector for bearing incident light, and at least one optical fiber base is used for being connected with an optical fiber connector for bearing emergent light.
Further, the movable seat is a sliding block, at least one row of optical filter bearing positions distributed along the length direction are arranged on the sliding block, and the driving device drives the sliding block to slide along the length direction so as to switch any optical filter to be arranged in the light transmission path.
Further, the movable seat is a rotary disc type color wheel, a rotating shaft of the color wheel is rotatably arranged on the base, the base is fixedly arranged on the supporting seat, the driving device is a driving motor fixedly arranged on the base, and an output shaft of the driving motor is fixedly connected with the rotating shaft of the color wheel.
Further, a notch is formed in the side wall of the supporting seat, and a part of the filter bearing position, which is located on the non-light transmission path, of the movable seat is exposed out through the notch.
The utility model has the advantages that:
1) The two ends of the supporting seat are provided with the optical fiber seats, and the optical fiber seats can be connected with the optical fibers in a quick-dismantling way, so that light beams can be quickly guided into the cavity of the supporting seat;
2) The light intensity wave band switching mechanism is arranged on the supporting seat and is provided with an optical filter switching mechanism, and the adjustment of the light intensity and the wave band of the light beam is completed by cutting optical filters with different specifications into the light path;
3) The parabolic mirrors are arranged in the cavity, so that the propagation path of the light beam in the cavity can be changed, and meanwhile, the light intensity wave band switching mechanism is arranged between the two parabolic mirrors, and the receiving angle range of the optical filter can be enlarged by means of the parabolic mirrors.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a perspective view of a light intensity band selection device for use in a measuring apparatus according to a first embodiment of the present utility model;
FIG. 2 is a perspective view of a light intensity band selection device for use in a measurement apparatus according to one embodiment of the present utility model;
FIG. 3 is an exploded view of a light intensity band selection device for use in a measuring apparatus according to one embodiment of the present utility model;
FIG. 4 is a diagram of a propagation path of an optical path in a cavity according to a first embodiment of the present utility model;
FIG. 5 is a perspective view of a parabolic mirror according to a first embodiment of the present utility model;
FIG. 6 is an exploded view of a light intensity band switching mechanism according to a first embodiment of the present utility model;
FIG. 7 is a perspective view of a light intensity band selection device for use in a measuring apparatus according to a second embodiment of the present utility model;
Fig. 8 is a diagram of a propagation path of an optical path in a cavity according to a second embodiment of the present utility model.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
In order to provide a thorough understanding of the present utility model, detailed steps and detailed structures will be presented in the following description in order to explain the technical solution of the present utility model. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.
Example 1
Referring to fig. 1 to 6, the present utility model provides a light intensity band selecting device for use in a measuring apparatus, the light intensity band selecting device comprising a support 100, the support 100 being used for mounting and fixing all components, and a cavity 101 being provided in the support 100 as a space for optical path transmission. The optical fiber holders 200 are mounted at both ends of the support 100, and the optical fiber connectors 211 of the optical fibers 210 are connected with the optical fiber holders 200 in an inserting manner, so that the light transmitted by the optical fibers 210 at one end of the support 100 is guided into the cavity 101 and emitted from the optical fibers 210 at the other end.
The optical fiber holders 200 at both ends of the holder 100 are respectively located at the front and rear sides, and incident light incident from the front side of one end of the holder 100 is reflected by the reflecting means in the cavity 101 and then emitted from the rear side of the other end of the holder 100. The reflecting device is two parabolic mirrors 410 installed on the front and rear sides of the supporting base 100, and is used for turning and focusing the light path.
The schematic light path is shown in fig. 4, the schematic view of the parabolic mirror 410 is shown in fig. 5, in this embodiment, the parabolic mirror 410 includes a mirror base 411 and a mirror body 412, the mirror base 411 includes 3 screw mounting waist holes, the bottom of the mirror body 412 is a cylinder, the top and the side of the mirror body 412 have an approximately elliptical cross section, and the parabolic mirror 410 is directly fixed on the support base 100 through screws, and fine adjustment of the position is performed through the oblong holes. In this embodiment, a 90 ° parabolic mirror is used, but not limited to this angular parabolic mirror, and other angular parabolic mirrors may be used according to the requirement of the actual optical path, so that the light beam of the first parabolic mirror 410-1 can be turned to reach the second parabolic mirror 410-2, and the second parabolic mirror 410-2 focuses the light beam to the outgoing optical fiber 210 finally.
An optical intensity band switching mechanism 300 is installed between the two parabolic mirrors 410, and the optical intensity band switching mechanism 300 comprises a movable seat 310, a driving device 320, a base 330, a control system 1 and a plurality of functional lenses (or called filters). The base 330 is fixed to the supporting base 100 by screws, and is used for installing the moving base 310 and the driving device 320.
The movable base 310 is a rotary-disc color wheel, a circle of filter bearing positions 311 are arranged on the movable base 310 along the circumferential direction, and filter lenses with different specifications are arranged on the filter bearing positions 311. In the present utility model, neutral density filters and bandpass filters may be mounted on the movable base 310. The side wall of the supporting seat 100 is provided with a notch 103, and a part of the optical filter bearing position 311 of the wheel, which is positioned on the non-light transmission path, is exposed outside through the notch 103, so that the optical filter can be conveniently replaced by arranging a part of the optical filter outside the supporting seat.
The neutral density filter is a filter that attenuates light intensity without changing the energy distribution of the spectrum, and attenuates neutrality over a large spectral range. The neutral density filter is added to mainly avoid damage to the surface of the measured object caused by overlarge light intensity energy. And the service life of other optical elements in the optical path can be prolonged after energy attenuation. The transmittance may be selected according to the need, for example, 5%,10%,20%,50%, and the like.
One of the band-pass filters is a colored glass long-wave pass filter, which means that special elements are added in the glass melting process, so that absorption is generated for different spectrum bands and spectrum transmission is performed for other bands. For example: the RG850 filter can filter visible or ultraviolet bands, and only near infrared bands are remained, so that the influence of focusing energy on a measured object can be reduced when near infrared bands are used for measuring, and the ageing of other optical elements in an optical path can be slowed down.
It should be noted that, in addition to the above two basic filters, other filters may be selected and mounted on the movable base 310 according to the requirement, which is not described in detail herein.
As an alternative, the movable base 310 of the present embodiment is provided with 10 filter-bearing positions 311 distributed along the circumferential direction, and at most 10 filters with different specifications can be mounted, but other numbers of mounting holes can be used to satisfy more or fewer functional lens mounting. For example, a 10% neutral density filter is installed, and when the filter is in the light path, the light intensity is attenuated by 10% and then output; when the RG850 filter is installed, the filter filters out the spectrum of the wave band below 850nm and outputs the spectrum.
The implementation method of this embodiment is as follows:
1) Two optical fibers 210 are inserted into the optical fiber holders 200 at both ends of the support holder 100.
2) The incident optical fiber directs the beam to a first parabolic mirror 410-1 in the conditioning apparatus.
3) The control system obtains the preset requirement of the measuring equipment, and determines the light intensity and the wave band required by the output light beam according to the preset requirement.
4) The control system sends an instruction to the controller, and the controller controls the motor to rotate, and drives the color wheel to rotate in the notch of the supporting seat through the transmission shaft of the motor, so that the corresponding functional lens (color filter) is moved into the light path.
5) The first parabolic mirror 410-1 turns the light beam at a specific angle (e.g., 90 degrees), passes through a functional lens (color filter), and reaches the second parabolic mirror 410-2.
6) The second parabolic mirror 410-2 focuses the adjusted beam to the outgoing optical fiber, thereby completing the adjustment of the light intensity and the wave band of the beam.
Example two
As a second embodiment of the present utility model, this embodiment differs from the first embodiment in that:
Two sets of light intensity band switching mechanisms 300 are mounted between the first parabolic mirror 410-1 and the second parabolic mirror 410-2. The first parabolic mirror 410-1 turns the beam at a specific angle and passes through two functional lenses (color filters) in turn to the second parabolic mirror 410-2, providing more possibilities for optical path adjustment.
Example III
As a second embodiment of the present utility model, this embodiment differs from the first embodiment in that:
Two pairs (or more than two pairs) of parabolic mirrors are arranged in the supporting seat 100, one or more sets of light intensity wave band switching mechanisms 300 are arranged between each pair of parabolic mirrors, and light rays sequentially pass through the two pairs of parabolic mirrors for multiple angle turning and pass through a plurality of functional lenses (color filters) to provide more light path adjustment possibilities.
The preferred embodiments of the present utility model have been described above. It is to be understood that the utility model is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or modifications to equivalent embodiments without departing from the scope of the technical solution of the present utility model, using the methods and technical contents disclosed above, without affecting the essential content of the present utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (8)
1. An optical intensity band selection device for use in a measuring apparatus, the optical intensity band selection device comprising:
the support seat (100), the support seat (100) is internally provided with a cavity (101);
The optical fiber seat (200) is arranged at two ends of the supporting seat (100) and is used for connecting optical fibers (210), and incident light rays of the optical fibers (210) connected to one end of the supporting seat (100) are emitted from the optical fibers at the other end through the cavity (101);
The light intensity wave band switching mechanism (300), light intensity wave band switching mechanism (300) are equipped with and remove seat (310) and drive arrangement (320), remove seat (310) are equipped with at least two light filter and bear position (311) and are used for installing light filter (312) of different specifications, by drive arrangement (320) drive remove seat (310) and remove in order to switch arbitrary light transmission path that light filter (312) placed in cavity (101).
2. A light intensity band selection device for use in a measuring apparatus as claimed in claim 1, characterized in that the optical fiber (210) is connected to an optical fiber connector (211), the optical fiber connector (211) being quick-release connected to the optical fiber holder (200).
3. A light intensity band selection means for use in a measuring device as claimed in claim 1, characterized in that the light intensity band selection means further comprise reflection means (400) located in the cavity (101), the reflection means (400) being arranged to change the light transmission path in the cavity (101).
4. A light intensity band selection device for use in a measuring apparatus as claimed in claim 3, wherein said reflecting means (400) comprises at least one pair of parabolic mirrors (410), said support (100) being provided with at least one pair of parabolic mirror mounting holes (102) arranged on both sides, said parabolic mirrors (410) being mounted in said parabolic mirror mounting holes (102) in a quick-release manner and extending into said cavity (101);
At least one set of light intensity band switching mechanisms (300) is mounted between each pair of parabolic mirrors (410).
5. A light intensity band selection device for use in a measuring apparatus as claimed in claim 1, characterized in that the support (100) is provided with at least two of said fiber holders (200), at least one fiber holder (200) for connecting an incoming fiber and at least one fiber holder (200) for connecting an outgoing fiber.
6. A light intensity band selecting device for use in a measuring apparatus as claimed in claim 1, wherein the movable base (310) is a slider, and at least one row of the optical filters carrying positions (311) distributed along a length direction is provided on the slider, and the slider is driven by the driving device (320) to slide along the length direction so as to switch any optical filter to be placed in the light transmission path.
7. A light intensity band selecting device for use in a measuring apparatus as claimed in claim 1, wherein said movable base (310) is a turntable-type color wheel, a rotation shaft of said color wheel is rotatably mounted on a base (330), said base (330) is fixedly mounted on said support base (100), said driving device (320) is a driving motor fixedly mounted on said base (330), and an output shaft of said driving motor is fixedly connected with the rotation shaft of said color wheel.
8. A light intensity band selection device as claimed in claim 6 or 7, characterized in that the side wall of the support (100) is provided with a notch (103), and that a part of the filter support (311) of the movable mount (310) located in the non-light transmission path is exposed through the notch (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323178055.5U CN221007990U (en) | 2023-11-24 | 2023-11-24 | Light intensity wave band selecting device for measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323178055.5U CN221007990U (en) | 2023-11-24 | 2023-11-24 | Light intensity wave band selecting device for measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221007990U true CN221007990U (en) | 2024-05-24 |
Family
ID=91116843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323178055.5U Active CN221007990U (en) | 2023-11-24 | 2023-11-24 | Light intensity wave band selecting device for measuring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221007990U (en) |
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2023
- 2023-11-24 CN CN202323178055.5U patent/CN221007990U/en active Active
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