CN210668982U - Laser applied to subway contact network - Google Patents
Laser applied to subway contact network Download PDFInfo
- Publication number
- CN210668982U CN210668982U CN201921925013.4U CN201921925013U CN210668982U CN 210668982 U CN210668982 U CN 210668982U CN 201921925013 U CN201921925013 U CN 201921925013U CN 210668982 U CN210668982 U CN 210668982U
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- mirror
- positive
- positive mirror
- optical fiber
- shell
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Abstract
The utility model provides a laser applied to a subway contact net with novel structural design, which comprises a semiconductor laser diode; the device also comprises an aspherical mirror, a first positive mirror, a second positive mirror and a Powell prism; the aspherical mirror is in communication connection with the first positive mirror through an optical fiber; the distances between the end part of the optical fiber and the first positive mirror, between the first positive mirror and the second positive mirror, and between the second positive mirror and the Powell prism are 3.00mm, 13.00mm and 2.50mm in sequence.
Description
Technical Field
The utility model relates to a laser instrument especially relates to a be applied to laser instrument of subway contact net.
Background
The SCT-SOL series linear laser is a high-performance laser product which is specially developed for railway and subway detection.
Disclosure of Invention
The utility model aims to overcome the not enough of prior art, adapt to reality needs, provide a novel laser instrument of being applied to subway contact net of structural design.
In order to realize the utility model discloses a purpose, the utility model discloses the technical scheme who adopts does:
designing a laser applied to a subway overhead line system, which comprises a semiconductor laser diode; the device also comprises an aspherical mirror, a first positive mirror, a second positive mirror and a Powell prism; the aspherical mirror is in communication connection with the first positive mirror through an optical fiber; the distances between the end part of the optical fiber and the first positive mirror, between the first positive mirror and the second positive mirror, and between the second positive mirror and the Powell prism are 3.00mm, 13.00mm and 2.50mm in sequence.
The semiconductor laser diode, the aspherical mirror and the optical fiber are integrated in the optical fiber coupling semiconductor laser tube and packaged through a main body shell, the second positive mirror and the Bowell prism are packaged through a lens shell, and the lens shell is installed at the front end of the main body shell.
The main body shell comprises a mounting seat and a shell buckled on the mounting seat, the optical fiber coupling semiconductor laser tube is mounted on the mounting seat in the shell through a fixing seat, a light transmission hole is formed in the side wall of the front end of the shell, and the first positive mirror is mounted on the mounting seat through a first positive mirror fixing sleeve; the end part of the optical fiber is arranged on the side part of the first positive mirror through an FC optical fiber connector, and the end part of the FC optical fiber connector is positioned in the first positive mirror fixing sleeve, faces the first positive mirror and is arranged at an interval with the first positive mirror.
The lens shell comprises an outer fixed cylinder with openings at two ends, the outer fixed cylinder is fixed on the side wall of the front end of the shell, and the light hole is positioned in the outer fixed cylinder; the second positive lens is fixed in the outer fixing cylinder close to the light-transmitting hole, a Bawell prism is fixed in the outer fixing cylinder outside the second positive lens, the outer side end of the outer fixing cylinder is fixed by an outer buckle cover, the outer buckle cover is in threaded connection with the outer fixing cylinder, and a through hole for laser beam to emit is formed in the side wall of the end portion of the outer buckle cover opposite to the Bawell prism.
The beneficial effects of the utility model reside in that:
the design can meet the conditions of high-speed data acquisition and high-frequency accurate measurement, the mechanical size of the laser can be 145 multiplied by 74 multiplied by 55(mm), the weight is 0.8kg, the power consumption is low, the laser can be used in a portable power supply system, such as battery power supply, and the laser can be integrated in a small space to work.
Drawings
Fig. 1 is a schematic view of the arrangement relationship of the lenses of the present invention;
fig. 2 is a schematic view of a cross-sectional structure of a laser applied to a subway overhead line system in the present invention;
fig. 3 is a laser energy distribution diagram of the laser applied to the subway overhead line system.
Detailed Description
The invention will be further described with reference to the following figures and examples:
example 1: a laser applied to a subway overhead line system, which is shown in fig. 1 and 2;
the laser device comprises a semiconductor laser diode 6, an aspherical mirror 5, a first positive mirror 3, a second positive mirror 2 and a Powell prism 1; the aspherical mirror 5 is in communication connection with the first positive mirror 3 through an optical fiber 4; the distances between the end part of the optical fiber and the first positive mirror, between the first positive mirror and the second positive mirror, and between the second positive mirror and the Powell prism are 3.00mm, 13.00mm and 2.50mm in sequence.
Specifically, in the design, the semiconductor laser diode 1, the aspherical mirror 5, and the optical fiber 4 are integrated in the fiber-coupled semiconductor laser tube and are packaged by the main body housing (the technology is the prior art, the fiber-coupled semiconductor laser tube is a product of the prior art, and is commercially available, and the structure of the fiber-coupled semiconductor laser tube is not described in detail in this embodiment), the second positive mirror 2 and the powell prism 1 are packaged by the lens housing, and the lens housing is mounted at the front end of the main body housing.
More specifically, the main body shell comprises a mounting seat 32 and a shell 31 buckled on the mounting seat 32, the optical fiber coupling semiconductor laser tube 7 is mounted on the mounting seat in the shell through a fixing seat, a light-transmitting hole 52 is formed in the side wall of the front end of the shell, and the first positive mirror 3 is mounted on the mounting seat through a first positive mirror fixing sleeve 51; the end of the optical fiber is arranged at the side of the first positive mirror 3 through an FC optical fiber connector 41, and the end of the FC optical fiber connector 41 is positioned inside the first positive mirror fixing sleeve facing the first positive mirror and arranged at a distance from the first positive mirror.
Specifically, the lens housing includes an outer fixed cylinder 13 with two open ends, the outer fixed cylinder 13 is fixed on the front end side wall of the shell 31, and the light hole is located in the outer fixed cylinder 31; the second positive lens 2 is fixed in the outer fixing cylinder close to the light-transmitting hole, the Bawell prism 1 is fixed in the outer fixing cylinder at the outer side of the second positive lens 2, the outer side end of the outer fixing cylinder is fixed by an outer buckle cover 12, the outer buckle cover 12 is in threaded connection with the outer fixing cylinder 13, and a through hole 11 for emitting a laser beam is formed in the side wall of the end part of the outer buckle cover opposite to the Bawell prism 1.
In the design, the Bawell prism is made of K9, the diameter is 9mm, the light passing surface is 9.0mm, the light-emitting angle is 20 degrees @808nm, and the refractive index is 1.52.
The first positive mirror is made of K9, has a focal length F of 25, a diameter of 12mm, a center thickness of 3.63mm, a refractive index of 1.52 and a radius of curvature of-15.49.
The second positive mirror is made of K9, has a focal length F of 16, a diameter of 8mm, a center thickness of 2.25mm, a refractive index of 1.52 and a radius of curvature of-7.95.
The power of the optical fiber coupling semiconductor laser tube is 3.5W, the wavelength is 808nm, the numerical aperture NA is 0.22, the core diameter is 200um, the outer diameter is 1.5mm, and the length is 2M.
In the work of the product, a 3.5 optical fiber laser device is arranged in the product, linear structure laser can be generated after passing through the aspherical mirror 5, the first positive mirror 3, the second positive mirror 2 and the Bawell prism 1, the effective use distance of the product reaches 5M, the light-emitting horizontal deflection angle is less than 0.01 degrees, and as shown in figure 3, the energy is uniformly distributed by more than 85 percent. The conditions of high-speed data acquisition and high-frequency accurate measurement can be met; secondly, the mechanical size of the laser of the design can be 145 multiplied by 74 multiplied by 55(mm), the weight is 0.8kg, the small power consumption of the laser can be used in a portable power supply system, such as battery power supply, and the laser can be integrated into a small space to work.
The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.
Claims (4)
1. A laser applied to a subway overhead line system comprises a semiconductor laser diode; the method is characterized in that: the device also comprises an aspherical mirror, a first positive mirror, a second positive mirror and a Powell prism; the aspherical mirror is in communication connection with the first positive mirror through an optical fiber; the distances between the end part of the optical fiber and the first positive mirror, between the first positive mirror and the second positive mirror, and between the second positive mirror and the Powell prism are 3.00mm, 13.00mm and 2.50mm in sequence.
2. The laser applied to the subway overhead line system of claim 1, wherein: the semiconductor laser diode, the aspherical mirror and the optical fiber are integrated in the optical fiber coupling semiconductor laser tube and packaged through a main body shell, the second positive mirror and the Bowell prism are packaged through a lens shell, and the lens shell is installed at the front end of the main body shell.
3. The laser applied to the subway overhead line system of claim 2, wherein: the main body shell comprises a mounting seat and a shell buckled on the mounting seat, the optical fiber coupling semiconductor laser tube is mounted on the mounting seat in the shell through a fixing seat, a light transmission hole is formed in the side wall of the front end of the shell, and the first positive mirror is mounted on the mounting seat through a first positive mirror fixing sleeve; the end part of the optical fiber is arranged on the side part of the first positive mirror through an FC optical fiber connector, and the end part of the FC optical fiber connector is positioned in the first positive mirror fixing sleeve, faces the first positive mirror and is arranged at an interval with the first positive mirror.
4. The laser applied to the subway overhead line system of claim 3, wherein: the lens shell comprises an outer fixed cylinder with openings at two ends, the outer fixed cylinder is fixed on the side wall of the front end of the shell, and the light hole is positioned in the outer fixed cylinder; the second positive lens is fixed in the outer fixing cylinder close to the light-transmitting hole, a Bawell prism is fixed in the outer fixing cylinder outside the second positive lens, the outer side end of the outer fixing cylinder is fixed by an outer buckle cover, the outer buckle cover is in threaded connection with the outer fixing cylinder, and a through hole for laser beam to emit is formed in the side wall of the end portion of the outer buckle cover opposite to the Bawell prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925013.4U CN210668982U (en) | 2019-11-10 | 2019-11-10 | Laser applied to subway contact network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925013.4U CN210668982U (en) | 2019-11-10 | 2019-11-10 | Laser applied to subway contact network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210668982U true CN210668982U (en) | 2020-06-02 |
Family
ID=70812175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921925013.4U Expired - Fee Related CN210668982U (en) | 2019-11-10 | 2019-11-10 | Laser applied to subway contact network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210668982U (en) |
-
2019
- 2019-11-10 CN CN201921925013.4U patent/CN210668982U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 710000 room 012, room 2405, unit 1, building 1, Tianxing building, Tongde Road, Fengxi new town, Xixian new area, Xi'an City, Shaanxi Province Patentee after: Shaanxi shuowei Photoelectric Technology Co.,Ltd. Address before: Room 313, building 9, headquarters economic Park, Fengxi new town, Xixian New District, Xi'an City, Shaanxi Province 710000 Patentee before: Shaanxi shuowei Photoelectric Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20211110 |