CN211180427U - Laser emission system with visible light auxiliary light path - Google Patents
Laser emission system with visible light auxiliary light path Download PDFInfo
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- CN211180427U CN211180427U CN201922296789.0U CN201922296789U CN211180427U CN 211180427 U CN211180427 U CN 211180427U CN 201922296789 U CN201922296789 U CN 201922296789U CN 211180427 U CN211180427 U CN 211180427U
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- infrared laser
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Abstract
The laser emission system with the visible light auxiliary light path comprises a bottom plate, wherein a left fixing frame, a base and a right fixing frame are sequentially and fixedly arranged on the bottom plate from left to right, a middle infrared laser light source is arranged on the left fixing frame, a prism is arranged on the base, a visible light source is arranged on the right fixing frame, and the middle infrared laser light source and the visible light source are respectively fixed on the left fixing frame and the right fixing frame after being adjusted by a two-dimensional or three-dimensional optical adjusting frame. The utility model discloses a visible light and invisible mid-infrared laser's the adjusting method that the beam synthesis just is the parallel relation that exits. When the system is used for detecting in an open space, the optical path of the invisible mid-infrared laser can be adjusted by utilizing the visualization of visible light, so that the adjustment of the on-site invisible mid-infrared laser beam is simple and easy, the adjustment time is saved, and the working efficiency of workers is improved.
Description
Technical Field
The utility model relates to an optics scene light path adjustment of tunable semiconductor laser spectrum technique (TD L AS) based on quantum cascade laser (QC L), the scene light path adjustment of mainly used invisible laser, like SF6The field of field leak detection analysis of high-voltage electrical equipment, gas multicomponent analysis in chemical industry and the like, in particular to a mid-infrared laser light path adjusting method for field gas detection.
Background
The tunable semiconductor laser spectrum absorption technology is gradually mature, and replaces the traditional infrared spectrum detection technology to become the mainstream technology of gas concentration detection, most of gas has absorption peaks in an infrared region, generally, the absorption peak intensity in a near infrared region is weaker, and the intensity in a middle infrared region is stronger, TD L AS spectrum analysis is carried out in the middle infrared region, a QC L laser is needed, light emitted by the QC L laser belongs to a middle infrared band, naked eyes are invisible, so that the field adjustment of a light path based on the spectrum analysis technology of a middle infrared light source is difficult to realize, the gas content in an open space is detected by using the QC L laser, the distance between a common light source and a middle infrared detector is longer, the pitch angle of light emitted by a laser emitting end in the adjustment process is slightly deviated, and finally the position deviation of the detector is very large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a be convenient for adjustment, the very little laser emission system who has visible light auxiliary light path of deviation, make visible light and invisible laser light source's emergent ray be close to the parallel.
In order to solve the technical problem, the utility model adopts the following technical scheme: the laser emission system with the visible light auxiliary light path comprises a bottom plate, wherein a left fixing frame, a base and a right fixing frame are sequentially and fixedly arranged on the bottom plate from left to right, a middle infrared laser light source is arranged on the left fixing frame, a prism is arranged on the base, a visible light source is arranged on the right fixing frame, and the middle infrared laser light source and the visible light source are respectively fixed on the left fixing frame and the right fixing frame after being adjusted by a two-dimensional or three-dimensional optical adjusting frame.
The cross section of the triangular prism is a right-angled triangle, one right-angle side of the right-angled triangle is horizontally arranged on the base and fixed on the bottom plate through the base, the other right-angle side of the right-angled triangle is adjacent to the intermediate infrared laser light source, and the hypotenuse of the right-angled triangle is adjacent to the visible light source.
And light source fixing holes are respectively formed in the left fixing frame and the right fixing frame to fix the intermediate infrared laser light source and the visible light source.
Adopt above-mentioned technical scheme, the utility model discloses laser emission system's light source adjustment method with light path is assisted to visible light, including following step:
(1) the prism is arranged on the base;
(2) arranging a right fixing frame on a bottom plate on the right side of the triple prism, and arranging a left fixing frame on a bottom plate on the left side of the triple prism;
(3) fixing the visible light source in the fixing hole of the optical adjusting frame, and simultaneously inserting the head of the visible light source into the light source fixing hole on the right fixing frame;
(4) adjusting the optical adjusting frame to enable the emergent light beam of the visible light source to emit to the right side face of the prism and to emit from the incident face on the right side, wherein the emergent light beam is in the horizontal direction or forms an included angle which is less than or equal to 5 degrees with the horizontal direction;
(5) keeping the state of the visible light source unchanged, fixing the visible light source in a light source fixing hole on the right fixing frame, and then removing the optical adjusting frame;
(6) arranging a mid-infrared detector in a certain optical path of the emergent direction of the visible light source, projecting the emergent light of the visible light source to the center of the mid-infrared detector, and fixing the position of the mid-infrared detector;
(7) fixing the mid-infrared laser light source in a fixing hole of the optical adjusting frame in the same operation mode as the operation mode in the step (3), and simultaneously inserting the head of the mid-infrared laser light source into the fixing hole in the left fixing frame;
(8) adjusting an optical adjusting frame to enable an emergent beam of the intermediate infrared laser light source to be emitted rightwards, penetrate through a prism and then be projected to the center of the intermediate infrared detector, so that the intermediate infrared detector has signal output, and the output signal value reaches the maximum;
(9) keeping the state of the mid-infrared laser light source unchanged, and fixing the mid-infrared laser light source in a fixing hole on the left fixing frame;
(10) and removing the optical adjusting frame and finishing the light source adjustment.
The specific setting positions of the triple prism in the step (1) are as follows: a right angle arris face level of prism sets up and fixes on the base, and another right angle arris face of prism is towards the left side, and the hypotenuse arris face of prism is towards the right side.
And (5) fixing the light source in the step (9) by dispensing outside points of the light source in the light source fixing holes on the left fixing frame and the right fixing frame so as to solidify the light source in the fixing holes.
In the steps (4) - (6) and (8), the visible light source, the intermediate infrared laser light source and the intermediate infrared detector are powered on during operation, so that optical signals or electric signals are output, and signals of the intermediate infrared detector can be detected by a signal measuring instrument.
The detection wavelength range of the intermediate infrared detector is matched with the wavelength of the intermediate infrared light source.
The optical adjusting frame is a common instrument, and the three-dimensional optical adjusting frame comprises an X-direction adjusting mechanism, a Y-direction adjusting mechanism and a Z-direction adjusting mechanism and can adjust the visible light source in the three-dimensional direction.
The cross section of the triangular prism is a right-angled triangle, one right-angle side of the right-angled triangle is horizontally arranged on the base and fixed on the bottom plate through the base, the other right-angle side of the right-angled triangle is adjacent to the intermediate infrared laser light source, and the hypotenuse of the right-angled triangle is adjacent to the visible light source.
The utility model discloses a laser emission system with light is assisted to visible light, according to its light source adjustment method, adjust the back to visible light source and well infrared laser light source respectively through the optics adjustment frame, the emergent light of visible light and the emergent light of well infrared laser almost are parallel relation and a beam of synthesis.
The utility model can solve the problem of light path adjustment of invisible mid-infrared laser in an open space, uses a visible light source, adopts nearly parallel light path with parallel light emitted by the mid-infrared laser source after the collimation of an optical adjustment frame, and emits the parallel light to a point to be projected (a detection point of a detector); that is, in the process of adjusting the optical path, only the optical path of the visible light needs to be adjusted, and the function of adjusting the invisible middle infrared optical path can be achieved.
In the open space, when the visible light beam is projected to the point to be detected, the emergent beam of the invisible laser light source is also projected to the point to be detected. Even if the optical path structure is provided with the mirror reflection optical path, an operator can easily project the visible light to the point to be detected due to the visibility of the visible light, and the emergent beam of the invisible laser can also be transmitted to the point to be detected due to the parallel relationship between the emergent beam of the invisible laser and the visible light beam.
In the open type optical path adjusting process, the function of adjusting invisible middle infrared optical paths can be achieved only by adjusting visible light optical paths. The system can avoid the tedious labor of the technical staff on site.
To sum up, the utility model relates to a laser emission system with visible light assists light path adopts the emergent beam of visible light and invisible mid-infrared laser to synthesize a branch and be the adjustment method of parallel relation. When the system is used for detecting in an open space, the optical path of the invisible mid-infrared laser can be adjusted by utilizing the visualization of visible light, so that the adjustment of the on-site invisible mid-infrared laser beam is simple and easy, the adjustment time is saved, and the working efficiency of workers is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic block diagram of the light source adjusting method of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model discloses a laser emission system with light is assisted to visible light, including bottom plate 1, from left to right side fixed left mount 2 that has set gradually on bottom plate 1, base 3 and right mount 4, be provided with well infrared laser light source 5 on the left mount 2, be provided with prism 6 on the base 3, be provided with visible light source 7 on the right mount 4, fix respectively on left mount 2 and right mount 4 after the adjustment of well infrared laser light source 5 and visible light source 7 through two-dimentional or three-dimensional optical adjustment frame 8.
The optical adjustment frame 8 is a common instrument, and the three-dimensional optical adjustment frame 8 includes an X-direction adjustment mechanism 9, a Y-direction adjustment mechanism 10, and a Z-direction adjustment mechanism 11, and can adjust the visible light source 7 in the three-dimensional direction.
The cross section of the triangular prism 6 is a right-angled triangle, one right-angled side of the right-angled triangle is horizontally arranged on the base 3 and fixed on the bottom plate 1 through the base 3, the other right-angled side of the right-angled triangle is adjacent to the intermediate infrared laser light source 5, and the hypotenuse of the right-angled triangle is adjacent to the visible light source 7.
The left fixing frame 2 and the right fixing frame 4 are respectively provided with a light source fixing hole for fixing the middle infrared laser light source 5 and the visible light source 7.
A light source adjusting method of a laser emitting system having a visible light auxiliary optical path includes the steps of,
(1) the triangular prism 6 is arranged on the base 3;
(2) the right fixing frame 4 is arranged on the bottom plate 1 on the right side of the triangular prism 6, and the left fixing frame 2 is arranged on the bottom plate 1 on the left side of the triangular prism 6;
(3) fixing the visible light source 7 in the fixing hole of the optical adjusting frame 8, and simultaneously inserting the head of the visible light source 7 into the light source fixing hole on the right fixing frame 4;
(4) adjusting an optical adjusting frame 8 to enable the emergent light beam of the visible light source 7 to emit to the right side face of the prism 6 and to emit from the incident face on the right side, wherein the emergent light beam is in the horizontal direction or forms an included angle which is less than or equal to 5 degrees with the horizontal direction;
(5) keeping the state of the visible light source 7 unchanged, fixing the visible light source 7 in a light source fixing hole on the right fixing frame 4, and then removing the optical adjusting frame 8;
(6) arranging a mid-infrared detector 12 in a certain optical path of the emergent direction of the visible light source 7, projecting the emergent light of the visible light source 7 to the center of the mid-infrared detector 12, and fixing the position of the mid-infrared detector 12;
(7) fixing the mid-infrared laser light source 5 in a fixing hole of the optical adjusting frame 8 in the same operation mode as the operation mode in the step (3), and simultaneously inserting the head of the mid-infrared laser light source 5 into the fixing hole on the left fixing frame 2;
(8) adjusting an optical adjusting frame 8 to enable an emergent beam of the intermediate infrared laser light source 5 to be emitted rightwards, penetrate through a prism and then be projected to the center of the intermediate infrared detector 12, so that the intermediate infrared detector 12 has signal output, and the output signal value reaches the maximum;
(9) keeping the state of the mid-infrared laser light source 5 unchanged, and fixing the mid-infrared laser light source 5 in a fixing hole on the left fixing frame 2;
(10) and removing the optical adjusting frame 8 and finishing the light source adjustment.
The specific setting positions of the triangular prism 6 in the step (1) are as follows: a right-angle edge face of the triangular prism 6 is horizontally arranged and fixed on the base 3, another right-angle edge face of the triangular prism 6 faces the left side, and a hypotenuse edge face of the triangular prism 6 faces the right side.
In the step (5) and the step (9), the light source fixing method is that the outer side of the light source in the light source fixing holes on the left fixing frame 2 and the right fixing frame 4 is subjected to glue dispensing so as to enable the light source to be solidified in the fixing holes.
In the steps (4) - (6) and (8), the visible light source 7, the intermediate infrared laser light source 5 and the intermediate infrared detector 12 are all powered on during operation, so that optical signals or electric signals are output, and signals of the intermediate infrared detector 12 can be detected by a signal measuring instrument.
The detection wavelength range of the mid-infrared detector 12 matches the wavelength of the mid-infrared light source.
The utility model discloses a laser emission system with light is assisted to visible light, according to its light source adjustment method, adjust the back to visible light source 7 and mid-infrared laser light source 55 respectively through optics adjustment frame 8, the emergent light of visible light and the emergent light of mid-infrared laser are parallel relation and a beam of synthesis almost.
The utility model can solve the problem of light path adjustment of invisible mid-infrared laser in an open space, uses a visible light source 77, after the collimation of an optical adjusting frame 8, adopts a nearly parallel light path with the parallel light emitted by the mid-infrared laser source 5, and emits the parallel light to a point to be projected (a detection point of a mid-infrared detector 12); that is, in the process of adjusting the optical path, only the optical path of the visible light needs to be adjusted, and the function of adjusting the invisible middle infrared optical path can be achieved.
It should be emphasized that the devices of the present invention are known hardware, which can be purchased in the market, and the specific structure and model thereof are not described again. The known hardware is respectively provided with known software to realize respective functions. The utility model discloses the function that realizes is brought by the hardware equipment of selection and relation of connection each other, need not carry out the improvement on the program control, need not design new software promptly
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (3)
1. Laser emission system with visible light auxiliary light path characterized in that: the infrared laser light source adjusting device comprises a bottom plate, wherein a left fixing frame, a base and a right fixing frame are sequentially and fixedly arranged on the bottom plate from left to right, a middle infrared laser light source is arranged on the left fixing frame, a prism is arranged on the base, a visible light source is arranged on the right fixing frame, and the middle infrared laser light source and the visible light source are respectively fixed on the left fixing frame and the right fixing frame after being adjusted by a two-dimensional or three-dimensional optical adjusting frame.
2. The laser emission system with auxiliary optical path of visible light according to claim 1, wherein: the cross section of the triangular prism is a right-angled triangle, one right-angle side of the right-angled triangle is horizontally arranged on the base and fixed on the bottom plate through the base, the other right-angle side of the right-angled triangle is adjacent to the intermediate infrared laser light source, and the hypotenuse of the right-angled triangle is adjacent to the visible light source.
3. The laser emission system with auxiliary optical path of visible light according to claim 1, wherein: and light source fixing holes are respectively formed in the left fixing frame and the right fixing frame to fix the intermediate infrared laser light source and the visible light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922296789.0U CN211180427U (en) | 2019-12-19 | 2019-12-19 | Laser emission system with visible light auxiliary light path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922296789.0U CN211180427U (en) | 2019-12-19 | 2019-12-19 | Laser emission system with visible light auxiliary light path |
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| Publication Number | Publication Date |
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| CN211180427U true CN211180427U (en) | 2020-08-04 |
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| CN201922296789.0U Active CN211180427U (en) | 2019-12-19 | 2019-12-19 | Laser emission system with visible light auxiliary light path |
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