CN211826704U - Laser optical structure and laser ranging system - Google Patents
Laser optical structure and laser ranging system Download PDFInfo
- Publication number
- CN211826704U CN211826704U CN202020872827.2U CN202020872827U CN211826704U CN 211826704 U CN211826704 U CN 211826704U CN 202020872827 U CN202020872827 U CN 202020872827U CN 211826704 U CN211826704 U CN 211826704U
- Authority
- CN
- China
- Prior art keywords
- laser
- mirror
- optical axis
- condensing lens
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The utility model provides a laser optical structure and laser rangefinder system belongs to laser rangefinder technical field. A laser optic structure comprising: first speculum, photoelectric sensing ware and condensing lens, first speculum are located the orthographic projection of condensing lens on its optical axis direction, and first speculum is used for receiving the laser beam of laser outgoing to along being on a parallel with the optical axis of condensing lens and the orientation keep away from the direction reflection laser beam of condensing lens, photoelectric sensing ware sets up in one side that first speculum was kept away from to the condensing lens, and is located the focus of condensing lens. An object of the utility model is to provide a laser optical structure and laser rangefinder system, its be convenient for manufacture, the cost is lower, and can make the optical axis of the laser beam of the final outgoing of laser rangefinder system parallel with the optical axis of condensing lens, avoids sheltering from of laser instrument or its circuit, casing isotructure to the light path that the condensing lens assembles the return light simultaneously.
Description
Technical Field
The utility model relates to a laser rangefinder technical field particularly, relates to a laser optical structure and laser rangefinder system.
Background
The basic principle of pulsed laser ranging, also known as TOF ranging, is to measure the time of flight of a laser pulse from transmission to reception and thus the precise distance between the laser emitting device and the target location.
In order to better receive the return light of the laser pulse after being reflected by the object to be measured, so as to improve the measurement accuracy of the laser ranging system, the optical axis of the laser finally emitted by the laser ranging system and the optical axis of the return light finally received by the laser ranging system are generally set to be coaxial or parallel. Generally, the laser ranging system includes a collecting mirror, a photoelectric sensor and a laser, wherein the laser is disposed in a central hole of the collecting mirror, so that laser emitted from the laser coincides with an optical axis of the collecting mirror, and the photoelectric sensor is disposed at a focus of the collecting mirror, so as to receive return light reflected by an object to be measured and returned.
However, in the existing laser ranging system, because the laser or the collimator is arranged in the central hole of the condenser, the line of the laser and the shell thereof and other structures can shield the light path of the return light converged by the condenser, so that the return light finally received by the photoelectric sensor is weak, the electric signal conversion effect is poor, the laser ranging precision is affected, and the condenser is required to be provided with the central hole, so that the processing difficulty is high, and the cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laser optical structure and laser rangefinder system, its be convenient for manufacture, the cost is lower, and can make the optical axis of the laser beam of the final outgoing of laser rangefinder system parallel with the optical axis of condensing lens, avoids sheltering from of laser instrument or its circuit, casing isotructure to the light path that the condensing lens assembles the return light simultaneously.
The embodiment of the utility model is realized like this:
an aspect of the embodiment of the utility model provides a laser optical structure, include: first speculum, photoelectric sensing ware and condensing lens, first speculum are located the orthographic projection of condensing lens on its optical axis direction, and first speculum is used for receiving the laser beam of laser outgoing to along being on a parallel with the optical axis of condensing lens and the orientation keep away from the direction reflection laser beam of condensing lens, photoelectric sensing ware sets up in one side that first speculum was kept away from to the condensing lens, and is located the focus of condensing lens.
Optionally, the first reflecting mirror is located on the optical axis of the collecting mirror, and the reflecting surface of the first reflecting mirror forms an included angle of 45 degrees with the optical axis of the collecting mirror.
Optionally, the first reflector is fixedly disposed on the collecting mirror.
Optionally, the laser optical structure further includes a second reflecting mirror located outside the orthographic projection of the condenser mirror in the optical axis direction thereof, the second reflecting mirror being configured to receive the laser beam emitted from the laser and reflect the laser beam toward the first reflecting mirror.
Optionally, the reflecting surface of the first reflecting mirror and the reflecting surface of the second reflecting mirror respectively form an included angle of 45 degrees with the optical axis of the collecting mirror.
Optionally, the laser optical structure further includes a collimator, and an optical axis of the collimator intersects with the reflecting surface of the first reflecting mirror; when the laser optical structure comprises a second reflector, the optical axis of the collimating mirror intersects the reflecting surface of the second reflector; the collimating mirror is used for connecting the laser to collimate the laser beam emitted by the laser.
Optionally, the collimating lens is disposed on an adjusting bracket, and the adjusting bracket is used for adjusting the optical axis direction of the collimating lens.
Optionally, the incident end of the collimating mirror is provided with an optical fiber interface for connecting with the laser through an optical fiber.
Optionally, the laser optical structure further includes a filter disposed on a side of the collecting mirror close to the first reflecting mirror, and the filter is located in an orthographic projection of the collecting mirror in the optical axis direction thereof.
The utility model discloses another aspect of the embodiment provides a laser rangefinder system, include: the laser optic structure of any of the above.
The utility model discloses beneficial effect includes:
the embodiment of the utility model provides a pair of laser optical structure, including first speculum, photoelectric sensing ware and condensing lens. The first reflector is located in the orthographic projection of the collecting mirror in the optical axis direction, and the photoelectric sensor is arranged on one side, away from the first reflector, of the collecting mirror and located at the focus of the collecting mirror. In practical applications, the laser beam may be emitted by a laser towards the first mirror, so that the laser beam is reflected by the first mirror and finally emitted by the laser optical structure in a direction parallel to the optical axis of the condenser. When the emergent laser beam is reflected and returned by the object to be measured, part of return light parallel to the optical axis of the collecting mirror can be converged to a focus by the collecting mirror, so that the return light is received by a photoelectric sensor arranged at the focus of the collecting mirror and converted into an electric signal which is output outwards, and the electric signal is used for data processing of the laser ranging system. Through this setting, owing to be provided with first speculum and reflect in order to the laser beam of laser outgoing, consequently, the laser instrument can set up outside the orthographic projection of condensing lens on its optical axis direction to can avoid laser instrument and circuit, casing isotructure to the sheltering from of condensing lens light-gathering light path of returning light. Simultaneously, through being located the first speculum of condensing lens in its optical axis direction orthographic projection, can reflect the laser beam of laser instrument outgoing along the direction of being on a parallel with the optical axis orientation of condensing lens and keeping away from the condensing lens to make the laser beam with the optical axis direction outgoing of being on a parallel with the condensing lens, thereby improve the energy of the return light that is on a parallel with the condensing lens that the laser beam returns after the object that awaits measuring reflects, promote the signal of telecommunication conversion effect of the photoelectric sensing ware of the return light after the receipt assembles. In addition, the laser optical structure does not need to be provided with a central hole on the condenser lens, so that the production and the manufacture are convenient, and the cost is lower.
The embodiment of the utility model provides a pair of laser rangefinder system adopts foretell laser optics structure, can make the optical axis of the laser beam of the final outgoing of laser rangefinder system parallel with the optical axis of condensing lens, avoids sheltering from of laser instrument or its circuit, casing isotructure to the light path that the condensing lens assembles the return light simultaneously. Moreover, the production and the manufacture are convenient, and the cost is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a laser optical structure according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a laser optical structure according to an embodiment of the present invention;
fig. 3 is a third schematic structural diagram of a laser optical structure according to an embodiment of the present invention.
Icon: 110-a first mirror; 120-a photoelectric sensor; 130-a condenser lens; 140-a second mirror; 150-a collimating mirror; 160-adjusting the support; 170-optical filter; 210-laser.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the utility model provides a laser optical structure, as shown in fig. 1, include: the first reflecting mirror 110 is located in an orthographic projection of the collecting mirror 130 in the optical axis direction, the first reflecting mirror 110 is used for receiving a laser beam emitted by the laser 210 and reflecting the laser beam along a direction parallel to the optical axis of the collecting mirror 130 and facing away from the collecting mirror 130, the photoelectric sensor 120 is arranged on one side of the collecting mirror 130 away from the first reflecting mirror 110 and located at a focus of the collecting mirror 130.
It should be noted that the reflecting surface of the first reflecting mirror 110 may be configured as a plane, and since the first reflecting mirror 110 is used for receiving the laser beam emitted from the laser 210 and reflecting the laser beam along a direction parallel to the optical axis of the collecting mirror 130 and facing away from the collecting mirror 130, the reflecting surface of the first reflecting mirror 110 is generally not perpendicular to the optical axis of the collecting mirror 130, and the emitting surface faces towards the side away from the collecting mirror 130. Of course, in practical applications, the reflecting surface of the first reflecting mirror 110 may also be a curved surface, which is not limited herein, as long as the laser beam of the laser 210 can be reflected along a direction parallel to the optical axis of the collecting mirror 130 and away from the collecting mirror 130.
The first reflector 110 may be a reflecting prism, a plane reflector, or the like, which is not limited in the embodiments of the present invention.
The photo sensor 120 may be configured as a PD sensor (photodiode), and in practical applications, the photo sensor 120 may also be configured as other devices capable of converting an optical signal into an electrical signal, such as a phototriode, a photoresistor, and the like, which is not limited herein.
In practical applications, the condenser lens 130 may be a lens capable of condensing parallel light, such as a convex lens, and is not limited herein. Wherein, the focus of condensing lens 130 can set up according to the actual space condition, this the embodiment of the utility model provides an in not doing the restriction. For example, a focal length of 35mm to 45mm, etc., and preferably may be 40 mm. In the embodiment of the present invention, the effective aperture range of the collecting mirror 130 may be a ring with a diameter of 12mm to 48mm, for example, 12mm, 24mm, 36mm, 48mm, etc., of course, in other embodiments of the present invention, the effective aperture range of the collecting mirror 130 may also be other values, and the limitation is not made here.
The embodiment of the utility model provides a pair of laser optical structure, including first speculum 110, photoelectric sensing ware 120 and condensing lens 130. The first reflector 110 is located in the orthographic projection of the collecting mirror 130 in the optical axis direction, and the photoelectric sensor 120 is disposed on a side of the collecting mirror 130 away from the first reflector 110 and located at the focus of the collecting mirror 130. In practical applications, the laser beam may be emitted by the laser 210 towards the first mirror 110, so that the laser beam is reflected by the first mirror 110 and finally emitted towards the laser optical structure in a direction parallel to the optical axis of the condenser 130. When the outgoing laser beam is reflected back by the object to be measured, a part of the return light parallel to the optical axis of the collecting mirror 130 can be converged to the focal point by the collecting mirror 130, so that the return light is received by the photoelectric sensor 120 arranged at the focal point of the collecting mirror 130 and converted into an electrical signal output outwards, so as to be used for data processing of the laser ranging system. With this arrangement, since the first reflecting mirror 110 is provided to reflect the laser beam emitted from the laser 210, the laser 210 may be disposed outside the orthographic projection of the collecting mirror 130 in the optical axis direction thereof, so as to avoid the blocking of the laser 210 and the structures such as the circuit and the housing thereof on the optical path of the return light collected by the collecting mirror 130. Meanwhile, through the first reflecting mirror 110 located in the orthographic projection of the collecting mirror 130 in the optical axis direction thereof, the laser beam emitted by the laser 210 can be reflected along the direction parallel to the optical axis direction of the collecting mirror 130 away from the collecting mirror 130, so that the laser beam is emitted in the optical axis direction parallel to the collecting mirror 130, thereby improving the energy of the return light of the laser beam, which is reflected by the object to be measured and then returns, parallel to the collecting mirror 130, and improving the electric signal conversion effect of the photoelectric sensor 120 receiving the converged return light. In addition, the laser optical structure does not need to be provided with a central hole on the condenser lens 130, so that the production and the manufacture are convenient, and the cost is low.
Alternatively, as shown in fig. 1 and 2, the first reflecting mirror 110 is located on the optical axis of the collecting mirror 130, and the reflecting surface of the first reflecting mirror 110 forms an angle of 45 degrees with the optical axis of the collecting mirror 130 (when the reflecting surface of the first reflecting mirror 110 is a plane).
By disposing the first reflecting mirror 110 on the optical axis of the collecting mirror 130, the laser beam reflected by the first reflecting mirror 110 can be brought closer to the optical axis of the collecting mirror 130. For example, as shown in fig. 1 and fig. 2, in practical application, a laser beam may be incident to an intersection point of the optical axes of the first reflecting mirror 110 and the light collecting mirror 130, so that the laser beam reflected by the first reflecting mirror 110 can coincide with the optical axis of the light collecting mirror 130, thereby further improving energy of return light condensed by the light collecting mirror 130 after the object to be measured reflects the laser beam, and improving a photoelectric conversion effect of the photoelectric sensor 120.
Since the optical path of the laser beam reflected by the first reflecting mirror 110 is parallel to the optical axis of the collecting mirror 130, the reflecting surface of the first reflecting mirror 110 and the optical axis of the collecting mirror 130 form an included angle of 45 degrees, so that the laser 210 can emit the laser beam toward the first reflecting mirror 110 along the direction perpendicular to the optical axis of the collecting mirror 130, and the laser 210 can be arranged at a position closer to the first reflecting mirror 110 than the orthographic projection of the collecting mirror 130 in the optical axis direction, so as to reduce the adverse effect of the divergence angle, the course angle and the like of the laser beam emitted by the laser 210 on the accuracy of the laser beam incident on the first reflecting mirror 110.
Alternatively, as shown in fig. 1 and 2, the first reflecting mirror 110 is fixedly disposed on the collecting mirror 130.
The first reflector 110 may be fixed on the collecting mirror 130 by bonding, embedding, or integrally forming. Moreover, in practical applications, a corresponding connection plane may be disposed at a position on the collecting mirror 130, where the connection plane contacts with the first reflecting mirror 110, so that the first reflecting mirror 110 can be more stably disposed on the collecting mirror 130.
The first reflector 110 is fixedly arranged on the collecting mirror 130, so that the laser optical structure is more compact, the occupied space is reduced, and the laser ranging system is convenient to miniaturize.
As shown in fig. 1 and fig. 2, the laser beam emitted by the laser 210 and received by the first reflecting mirror 110 in the laser optical structure may be directly incident on the first reflecting mirror 110 after being emitted by the laser 210, or the laser beam emitted by the laser 210 may be incident on the first reflecting mirror 110 after passing through another optical device, which is not limited herein.
Optionally, as shown in fig. 1, the laser optical structure further includes a second mirror 140, the second mirror 140 is located outside the orthographic projection of the collecting mirror 130 in the optical axis direction thereof, and the second mirror 140 is configured to receive the laser beam emitted from the laser 210 and reflect the laser beam toward the first mirror 110.
The reflecting surface of the second reflecting mirror 140 may be a plane or a curved surface, and those skilled in the art can set the reflecting surface according to practical situations, which is not limited herein as long as the second reflecting mirror 140 can reflect the laser beam of the laser 210 and then can enter the first reflecting mirror 110. Also, the second reflecting mirror 140 may be a reflecting prism, a reflecting plane mirror, etc., and is not limited herein.
It should be noted that, in practical applications, in order to prevent the laser 210 and the second mirror 140 from blocking the optical path of the light returned by the collecting mirror 130, the second mirror 140 and the laser 210 should be disposed outside the orthographic projection of the collecting mirror 130 in the optical axis direction. Based on this, those skilled in the art should know that the laser beam emitted from the laser 210 is incident on the first reflecting mirror 110 after being reflected by the second reflecting mirror 140 by correspondingly adjusting the first reflecting mirror 110 and the second reflecting mirror 140, and then the laser beam is reflected by the first reflecting mirror 110 along a direction parallel to the optical axis of the collecting mirror 130 and facing away from the collecting mirror 130, and therefore, detailed descriptions of specific corresponding positions of the first reflecting mirror 110 and the second reflecting mirror 140 are omitted here.
By arranging the second reflecting mirror 140 and correspondingly adjusting the second reflecting mirror 140 and the first reflecting mirror 110, the laser 210 can emit laser beams at a smaller included angle with the optical axis of the collecting mirror 130, besides the orthographic projection of the collecting mirror 130 in the optical axis direction, so that the laser 210 can be closer to the collecting mirror 130, and the laser optical structure is more compact.
For example, as shown in fig. 1, the reflective surface of the first reflecting mirror 110 and the reflective surface of the second reflecting mirror 140 respectively form an angle of 45 degrees with the optical axis of the collecting mirror 130 (when the reflective surfaces of the first reflecting mirror 110 and the second reflecting mirror 140 are flat).
With the above arrangement, the laser beam emitted from the laser 210 is emitted in a direction parallel to the optical axis of the condenser lens 130, and is sequentially reflected by the second reflecting mirror 140 and the first reflecting mirror 110, and then emitted in a direction parallel to the optical axis of the condenser lens 130 and away from the condenser lens 130. The laser 210 can be arranged close to the condenser lens 130, and the compactness of the laser optical structure is improved.
Optionally, as shown in fig. 2, the laser optical structure further includes a collimator 150, and an optical axis of the collimator 150 intersects with the reflecting surface of the first reflecting mirror 110; as shown in fig. 1, when the laser optical structure includes the second mirror 140, the optical axis of the collimating mirror 150 intersects the reflective surface of the second mirror 140; the collimating mirror 150 is used to couple the laser 210 to collimate the laser beam emitted by the laser 210.
By arranging the collimating mirror 150 to collimate the laser beam emitted by the laser 210, the divergence angle of the laser beam emitted by the laser 210 can be reduced, so that a relatively small light spot can be maintained after the laser beam is emitted for a longer distance. The divergence angle of the collimating mirror 150 may be 0.02 degree to 0.04 degree, for example, 0.02 degree, 0.03 degree, 0.04 degree, etc., and of course, the divergence angle of the collimating mirror 150 may also be set to other values according to actual needs, and is not limited herein.
Alternatively, as shown in fig. 3, the collimating mirror 150 is disposed on an adjusting bracket 160, and the adjusting bracket 160 is used for adjusting the optical axis direction of the collimating mirror 150.
The collimating mirror 150 is disposed on the adjusting bracket 160, and the collimating mirror 150 can be adjusted by the adjusting bracket 160, so that the position of the laser beam emitted from the collimating mirror 150 and incident on the first reflecting mirror 110 or the second reflecting mirror 140 can be adjusted according to different precision requirements, which is convenient for application of the laser optical structure in different environments.
Optionally, the incident end of the collimating mirror 150 is provided with a fiber interface for connecting with the laser 210 through a fiber.
The optical fiber interface can be a structure such as an optical fiber jumper connector capable of accessing optical fibers. Through setting up the fiber interface so that collimating mirror 150 can be connected with laser instrument 210 through optic fibre, make the laser instrument 210 that sets up among the practical application, can be according to the more convenient overall arrangement setting that carries on of space environment to improve space utilization.
Optionally, as shown in fig. 1 and fig. 2, the laser optical structure further includes a filter 170, the filter 170 is disposed on a side of the collecting mirror 130 close to the first reflecting mirror 110, and the filter 170 is located in an orthogonal projection of the collecting mirror 130 in the optical axis direction thereof.
By arranging the optical filter 170, the laser beam emitted by the laser 210 is reflected back by the object to be measured, and is normally incident on the condenser 130 to be received by the photoelectric sensor 120, while ambient light and other light outside the laser beam band of the laser 210 cannot be incident on the condenser 130, so that the signal-to-noise ratio of the light signal received by the photoelectric sensor 120 is improved. The filter 170 may be a narrow band filter 170, and the center wavelength thereof may be set to the operating wavelength of the laser 210 in practical use. Of course, in practical applications, the filter 170 may be provided in other types, which are not limited herein, as long as the light emitted by the laser 210 outside the laser beam band can be prevented from passing through.
The utility model discloses another aspect of the embodiment provides a laser rangefinder system, include: the laser optic structure of any of the above.
In general, in practical applications, the laser ranging system further includes a laser 210, a reference light receiver, a data processing device, and the like, wherein the laser 210 may be a pulsed fiber laser 210, and the like, which is not limited herein. The reference light receiver is used for directly receiving the laser beam and converting the laser beam into an electrical signal output outwards. The data processing device is respectively in signal connection with the reference light receiver and the photoelectric sensor 120 in the laser optical structure, and is used for processing and calculating the distance of the object to be measured according to the electric signals output by the reference light receiver and the photoelectric sensor.
The embodiment of the utility model provides a laser rangefinder system adopts foretell laser optics structure, can make the optical axis of the laser beam of the final outgoing of laser rangefinder system parallel with the optical axis of condensing lens 130, avoids sheltering from of the light path that laser instrument 210 or its circuit, casing isotructure assembled the return light to condensing lens 130 simultaneously. Moreover, the production and the manufacture are convenient, and the cost is lower.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A laser optic structure, comprising: first speculum, photoelectric sensing ware and condensing lens, first speculum is located the condensing lens is in its ascending orthographic projection of optical axis direction, first speculum is used for receiving the laser beam of laser instrument outgoing, and follows and be on a parallel with the optical axis of condensing lens and orientation are kept away from the direction reflection of condensing lens the laser beam, the photoelectric sensing ware set up in the condensing lens is kept away from one side of first speculum, and is located the focus of condensing lens.
2. The laser optic structure of claim 1, wherein the first reflector is positioned on the optical axis of the collecting mirror, and the reflecting surface of the first reflector forms a 45-degree angle with the optical axis of the collecting mirror.
3. The laser optic structure of claim 1, wherein the first mirror is fixedly disposed on the collection mirror.
4. The laser optical structure of claim 1, further comprising a second mirror located outside of the orthographic projection of the condenser mirror in the direction of the optical axis thereof, the second mirror for receiving the laser beam emitted from the laser and reflecting the laser beam toward the first mirror.
5. The laser optic structure of claim 4, wherein the reflective surface of the first mirror and the reflective surface of the second mirror each form a 45 degree angle with the optical axis of the collection mirror.
6. The laser optical structure according to any one of claims 1 to 5, further comprising a collimator mirror, an optical axis of the collimator mirror intersecting the reflecting surface of the first reflecting mirror; when the laser optical structure comprises a second mirror, the optical axis of the collimating mirror intersects the reflective surface of the second mirror; the collimating mirror is used for connecting the laser to collimate the laser beam emitted by the laser.
7. The laser optic structure of claim 6, wherein the collimating mirror is disposed on an adjustment bracket, the adjustment bracket being configured to adjust an optical axis direction of the collimating mirror.
8. The laser optical structure as claimed in claim 6, wherein the incident end of the collimating mirror is provided with a fiber interface for connecting with the laser through an optical fiber.
9. The laser optical structure according to claim 1, further comprising a filter disposed on a side of the collecting mirror near the first reflecting mirror, wherein the filter is located in an orthographic projection of the collecting mirror in an optical axis direction thereof.
10. A laser ranging system comprising a laser optical structure according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020872827.2U CN211826704U (en) | 2020-05-22 | 2020-05-22 | Laser optical structure and laser ranging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020872827.2U CN211826704U (en) | 2020-05-22 | 2020-05-22 | Laser optical structure and laser ranging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211826704U true CN211826704U (en) | 2020-10-30 |
Family
ID=73026385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020872827.2U Active CN211826704U (en) | 2020-05-22 | 2020-05-22 | Laser optical structure and laser ranging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211826704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116755061A (en) * | 2023-06-16 | 2023-09-15 | 苏州大学 | Far-field laser ranging optical system based on off-axis Grignard structure |
-
2020
- 2020-05-22 CN CN202020872827.2U patent/CN211826704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116755061A (en) * | 2023-06-16 | 2023-09-15 | 苏州大学 | Far-field laser ranging optical system based on off-axis Grignard structure |
| CN116755061B (en) * | 2023-06-16 | 2024-05-28 | 苏州大学 | Far-field laser ranging optical system based on off-axis Grignard structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111337901B (en) | Laser radar for remote detection and detection method thereof | |
| CN110235025B (en) | Distance detecting device | |
| CN109031533B (en) | Dual-light-path receiving and transmitting integrated antenna based on Cassegrain telescope and receiving and transmitting method | |
| CN211236225U (en) | Large-view-field laser radar optical-mechanical system | |
| CN110806623A (en) | Optical transceiver | |
| CN211826704U (en) | Laser optical structure and laser ranging system | |
| CN115268097A (en) | Optical system and laser radar with same | |
| CN111458857A (en) | Laser optical structure and laser ranging system | |
| CN212321830U (en) | Laser radar for remote detection | |
| CN211826520U (en) | Laser light path system and laser distance measuring device | |
| JP4127579B2 (en) | Light wave distance meter | |
| CN210720819U (en) | Optical transceiver | |
| CN116793329A (en) | Optical transceiver integrated module for interference type optical fiber gyro | |
| CN213600058U (en) | Laser rangefinder equipment and laser range finder thereof | |
| CN216979280U (en) | Optical fiber receiving module and laser radar detection system | |
| CN111308728A (en) | Light and small-sized autocollimator | |
| CN214795179U (en) | Reflector type scanning device and laser radar | |
| CN2906644Y (en) | Wide-view-field optical device for laser echo detection | |
| CN210894689U (en) | Laser emission device and laser radar system | |
| CN210243829U (en) | Laser radar system and laser ranging device | |
| CN108369347B (en) | Beam shaping unit, distance measuring device and laser lighting device | |
| KR100976299B1 (en) | Bi-directional optical module and laser range finder using the same | |
| CN218886154U (en) | Laser cloud detection radar | |
| CN218331974U (en) | Optical configuration of common lens laser ranging system | |
| CN216979291U (en) | Optical system of laser radar and laser radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |