CN114200423B - A distance measuring optical system - Google Patents
A distance measuring optical system Download PDFInfo
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- CN114200423B CN114200423B CN202010976830.3A CN202010976830A CN114200423B CN 114200423 B CN114200423 B CN 114200423B CN 202010976830 A CN202010976830 A CN 202010976830A CN 114200423 B CN114200423 B CN 114200423B
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- reflection
- plane
- line
- reflector
- reflection line
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/198—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors with means for adjusting the mirror relative to its support
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
本发明涉及一种测距光学系统，包括激光发射器、待测物、第一反光镜、成像镜头、支撑座、第二反光镜、感光靶面和圆柱镜筒；激光发射器发射出激光束；激光束照射到放置在Y轴正向的待测物上形成照射点；激光束经过照射点反射形成第一反射线；第一反射线照射到第一反光镜底部的反射面上形成第一反射点；第一反射线经过第一反射点反射形成第二反射线；第二反射线照射在成像镜头表面形成光心；第二反射线穿过成像镜头照射在第二反光镜上形成第二反射点；第二反射线经过第二反射点反射形成第三反射线；第三反射线照射到位于XZ平面上方的感光靶面上形成成像点；本技术方案能够提供一种便于生产制造以及反射光路简单可调节的测距光学系统。
The invention relates to a distance measuring optical system, comprising a laser emitter, an object to be measured, a first reflector, an imaging lens, a support seat, a second reflector, a photosensitive target surface and a cylindrical lens barrel; the laser emitter emits a laser beam; the laser beam irradiates the object to be measured placed in the positive direction of the Y axis to form an irradiation point; the laser beam is reflected by the irradiation point to form a first reflection line; the first reflection line is irradiated on the reflection surface at the bottom of the first reflector to form a first reflection point; the first reflection line is reflected by the first reflection point to form a second reflection line; the second reflection line is irradiated on the surface of the imaging lens to form an optical center; the second reflection line passes through the imaging lens and irradiates on the second reflector to form a second reflection point; the second reflection line is reflected by the second reflection point to form a third reflection line; the third reflection line is irradiated on the photosensitive target surface located above the XZ plane to form an imaging point; the technical solution can provide a distance measuring optical system which is easy to produce and manufacture and has a simple and adjustable reflection light path.
Description
Technical Field
The invention belongs to the technical field of optical detection, and particularly relates to a ranging optical system.
Background
In the traditional equipment, the distance of an object is measured, a laser beam is irradiated on the object, and the sensor for realizing position detection is used for detecting the position of an imaging point of a lens on a photosensitive target surface according to the triangulation principle, so that the distance information of the position of the object is obtained, a longer image distance and a larger side view angle are required for obtaining enough detection precision, the increase of the side view angle directly causes the increase of the distance of the lens deviated from the laser beam on the premise that the detected distance is constant, the size of the sensor is directly increased, and on the other hand, the size of the sensor is required to be reduced as much as possible for facilitating the use of the sensor, and the problems of complex structure, complex and difficult light path adjustment and troublesome manufacture are caused.
Disclosure of Invention
The invention aims to provide a ranging optical system which is small in equipment, simple in structure, convenient to manufacture and simple and adjustable in reflection light path.
The distance measuring optical system comprises a laser transmitter, an object to be measured, a first reflector, an imaging lens, a supporting seat, a second reflector and a photosensitive target surface, wherein the laser transmitter transmits laser beams, an XYZ three-dimensional coordinate system is built by taking the laser transmitter as an origin, the direction transmitted by the laser transmitter is the same as the positive direction of a Y axis or forms an inclined angle with the positive direction of the Y axis, the laser beams are positioned on a YZ plane, the laser beams are irradiated onto the object to be measured placed in the positive direction of the Y axis to form an irradiation point, the laser beams are reflected by the irradiation point to form a first reflection line, the plane of the laser beams, the first reflection line is positioned on an XY plane, the bottom reflection surface of the first reflector and the XZ plane are provided with an inclined angle of forty-fifteenth degrees, the first reflection line is irradiated onto the reflection plane of the bottom of the first reflector, the first reflection line passes through the first reflection point to form a second reflection line, the second reflection line is positioned on the Z plane of the coordinate system and forms an inclined plane, the second reflection line passes through the second reflection point on the X-plane, and passes through the second reflection plane of the second reflection plane, and the X-ray passes through the second reflection plane of the first reflection plane to form an X-ray.
As a further development of the invention, the intersection of the first light path plane with the reflecting surface of the first mirror forms a first fold line which is located on the bottom surface of the first mirror and runs parallel to the coordinate system X axis.
As a further improvement of the invention, the intersection line of the second light path plane and the reflecting surface of the second reflector forms a second folding line, and the second folding line is positioned on the inclined plane at the upper part of the second reflector and forms an inclined included angle with the X axis of the coordinate system.
As a further improvement of the invention, a rotating shaft is fixedly connected between the laser transmitter and the first reflector, the rotation axis of the rotating shaft and the reflecting surface of the first reflector are positioned in the same plane and parallel to the X axis, and the laser transmitter, the first reflector and the rotating shaft are transversely arranged in parallel in the X axis direction.
As a further improvement of the invention, a cylindrical lens barrel is sleeved outside the supporting seat, an imaging lens is embedded and installed on the side face of the cylindrical lens barrel, a round hole is formed in the upper surface of the cylindrical lens barrel, a cylindrical supporting seat is installed at the bottom of the round hole, an adjusting notch is formed in the lower surface of the supporting seat, a threaded hole is formed in the side face of the supporting seat, and a limiting groove is formed in the side wall below the cylindrical lens barrel.
As a further improvement of the invention, the central axial direction of the cylindrical lens barrel is vertical to the XZ plane of the coordinate system, the upper surface of the supporting seat is provided with an inclined surface with forty-five degrees, and the photosensitive target surface is arranged right above the round hole.
As a further improvement of the invention, the bottom of the supporting seat is provided with an adjusting notch which is in a shape of a straight groove.
As a further development of the invention, the third light path plane is perpendicular to the XZ plane.
Compared with the prior art, the technical scheme has the advantages that the sensor light path device requiring multiple-aspect adjustment is achieved through the first reflecting mirror and the second reflecting mirror, so that the device can be effectively miniaturized, debugging and production manufacturing are convenient, the imaging lens is installed in the side face of the cylindrical lens barrel in an embedded mode, visual angle relation between the lens and a laser beam can be conveniently adjusted, the laser transmitter and the first reflecting mirror are installed on the same rotating shaft, when the laser beam is required to rotate to measure different positions on an object, the first reflecting mirror can rotate by the same angle, the adjustment of the angle of the first reflecting mirror can be achieved at the same time, the technical effect of measuring different positions of the object to be measured is achieved, the imaging lens is installed on the side wall of the cylindrical lens barrel in a movable mode, the imaging lens and the object are convenient to adjust, the supporting seat with the second reflecting mirror is embedded into the cylindrical hole of the cylindrical lens barrel, when an image point exceeds the allowable range and cannot be imaged on the photosensitive target face, the supporting seat can be adjusted in a rotating mode, the position can be adjusted correspondingly when the laser beam is required to rotate, the supporting seat can be screwed into the corresponding position, the corresponding position can be adjusted, the position can be adjusted correspondingly, the position can be adjusted to the right through the corresponding position of the supporting seat can be adjusted, and the threaded hole can be screwed into the right side of the cylindrical lens barrel, the threaded hole can be adjusted, the position can be adjusted, and the position can be adjusted to the position can be adjusted conveniently, and the position can be used for the object.
Drawings
Fig. 1 is a schematic view of the light path and equipment installation of an object at position P of an object to be measured according to the present invention.
Fig. 2 is a schematic view of the light path and equipment installation of an object to be measured at a position Q according to the present invention.
Fig. 3 is a schematic view of the light path and equipment installation of an object to be measured at a position R according to the present invention.
Fig. 4 is a schematic view of the internal structure of the cylindrical lens barrel according to the present invention.
The laser device comprises a laser emitter, a to-be-detected object, a first reflector, a 4, an imaging lens, a 5, a supporting seat, a 6, a second reflector, a 7, a photosensitive target surface, a 8, a cylindrical lens, a 9, a round hole, a 10, an adjusting notch, a 11, a threaded hole, a 12, a limit groove, a 13, a rotating shaft, a 14, a laser beam, a 15, an irradiation point, a 16, a first reflection line, a 17, a first reflection point, a 18, a first reflection line, a 19, a second reflection line, a 20, a light center, a 21, a second reflection point, a 22, a second reflection line, a 23, a third reflection line, a 24 and an imaging point.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a ranging optical system, which includes a laser emitter 1, an object 2 to be measured, a first reflector 3, an imaging lens 4, a support 5, a second reflector 6 and a photosensitive target 7; establishing an XYZ three-dimensional coordinate system by taking a laser transmitter 1 as an origin; the emitting direction of the laser emitter 1 is the same as the Y-axis forward direction or forms an inclined included angle with the Y-axis forward direction; the laser beam 14 is positioned on a YZ plane, the laser transmitter 1 emits the laser beam 14, the laser beam 14 irradiates the object 2 to be detected placed in the Y-axis forward direction to form an irradiation point 15, the laser beam 14 is reflected by the irradiation point 15 to form a first reflection line 16, the plane where the first reflection line 16 is positioned is a first optical path plane, the intersection line of the first optical path plane and the reflection surface of the first reflector 3 forms a first folding line 18, the first optical path plane is positioned on an XY plane, the first reflection line 16 irradiates the reflection surface at the bottom of the first reflector 3 to form a first reflection point 17, the bottom reflection surface of the first reflector 3 forms an angle of forty-five degrees with the XZ plane, the first reflection line 16 is reflected by the first reflection point 17 to form a second reflection line 19, the plane where the second reflection line 19 is reflected by the coordinate system Z axis, the intersection line of the second optical path plane and the reflection surface of the second reflector 6 forms a second folding line 22, the second optical path plane is positioned on the XZ plane, the second reflection line 19 irradiates an optical center 20 at the center of the imaging lens 4, the second reflection line 19 passes through the second reflection plane 21 and passes through the second reflection plane 6 to form a second reflection plane 21, the second reflection line passes through the second reflection plane 21 and passes through the second reflection plane 6 to form a second reflection plane on the second reflection plane The third light path plane is perpendicular to the XZ plane, and the third reflected ray 23 irradiates the photosensitive target surface 7 above the XZ plane to form an imaging point 24.
As shown in the accompanying drawings 1-3, L1, L2 and L3 are distances from an origin to three objects to be measured from near to far, P, Q and R are measuring points which are different corresponding to the three objects to be measured, a Q point shown in FIG. 2 just falls on a main optical axis of a lens, a P point in FIG. 1 and a R point in FIG. 3 are located outside the main optical axis, a rotating shaft 13 is fixedly connected between a laser emitter 1 and a first reflecting mirror 3, the laser emitter 1, the first reflecting mirror 3 and the rotating shaft 13 are arranged in parallel in the X-axis direction in a transverse direction, an imaging lens 4 is embedded and mounted on the side surface of a cylindrical lens barrel 8, a round hole 9 is formed in the upper surface of the cylindrical lens barrel 8, a cylindrical supporting seat 5 is mounted at the bottom of the round hole 9, an adjusting notch 10 is formed in the lower surface of the supporting seat 5, a threaded hole 11 is formed in the side surface of the supporting seat 5, a limiting groove 12 is formed in the lower side wall of the cylindrical lens barrel 8, the center axis of the cylindrical lens barrel 8 is perpendicular to the XZ plane in the coordinate system, an inclined plane is formed in the upper surface of the supporting seat 5, the upper surface of the supporting seat 5 is formed into a forty-five-degree inclined plane, an imaging lens 4 is mounted on the side surface of the upper surface of the supporting seat 5, a second surface is fixedly mounted on the upper surface of the cylindrical lens barrel 8, a right-angle adjusting tool 7 is inserted into the right-angle adjusting notch 10 of the cylindrical lens barrel, and the right-angle adjusting tool is mounted on the right side of the cylindrical lens barrel 7.
The foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A ranging optical system is characterized by comprising a laser transmitter (1), an object to be measured (2), a first reflector (3), an imaging lens (4), a supporting seat (5), a second reflector (6) and a photosensitive target surface (7), wherein the laser transmitter (1) emits a laser beam (14), an XYZ three-dimensional coordinate system is established by taking the laser transmitter (1) as an origin, the direction emitted by the laser transmitter (1) is the same as the Y-axis forward direction or forms an inclined angle with the Y-axis forward direction, the laser beam (14) is positioned on a YZ plane, the laser beam (14) irradiates an object to be measured (2) placed in the Y-axis forward direction to form an irradiation point (15), the laser beam (14) is reflected by the irradiation point (15) to form a first reflection line (16), the plane in which the laser beam (14) and the first reflection line (16) are positioned on an XY plane, the bottom reflection surface of the first reflector (3) and the XZ plane are provided with an angle of forty-five degrees, the first reflection line (16) irradiates the first reflection plane and the second reflection line (17) forms a second reflection line (19) on the second reflection plane On an XZ plane, the second reflection line (19) irradiates an optical center (20) passing through the center of the imaging lens (4), the second reflection line (19) irradiates a second reflector (6) through the imaging lens (4) to form a second reflection point (21), the second reflector (6) is arranged on an inclined surface of the supporting seat (5), the second reflection line (19) is reflected by the second reflection point (21) to form a third reflection line (23), the plane on which the third reflection line (23) is positioned is a third light path plane, the third reflection line (23) irradiates a photosensitive target surface (7) positioned above the XZ plane to form an imaging point (24), a rotating shaft (13) is fixedly connected between the laser emitter (1) and the first reflector (3), the rotation axis of the rotating shaft (13) is positioned in the same plane as the reflection surface of the first reflector (3) and is parallel to the X axis, the laser emitter (1), the rotating shaft (13), the first reflective mirrors (3) are transversely arranged in parallel in the X-axis direction, a cylindrical lens barrel (8) is sleeved outside the supporting seat (5), an imaging lens (4) is embedded and installed on the side face of the cylindrical lens barrel (8), a round hole (9) is formed in the upper surface of the cylindrical lens barrel (8), a cylindrical supporting seat (5) is installed at the bottom of the round hole (9), an adjusting notch (10) is formed in the lower surface of the supporting seat (5), a threaded hole (11) is formed in the side face of the supporting seat (5), and a limiting groove (12) is formed in the side wall below the cylindrical lens barrel (8).
2. A distance measuring optical system according to claim 1, characterized in that the intersection of the first light path plane with the reflecting surface of the first mirror (3) forms a first fold line (18), which first fold line (18) is located on the bottom surface of the first mirror (3) and runs parallel to the coordinate system X-axis.
3. A distance measuring optical system according to claim 1, characterized in that the intersection of the second light path plane with the reflecting surface of the second mirror (6) forms a second fold line (22), said second fold line (22) being located on the upper inclined plane of the second mirror (6) and oriented at an inclined angle to the X-axis of the coordinate system.
4. The ranging optical system according to claim 3, wherein the central axial direction of the cylindrical lens barrel (8) is perpendicular to the XZ plane of the coordinate system, the upper surface of the supporting seat (5) is provided with an inclined surface of forty-five degrees, and the photosensitive target surface (7) is arranged right above the round hole.
5. A ranging optical system according to claim 3, characterized in that the adjustment notch (10) is in the form of a straight groove.
6. A ranging optical system as claimed in claim 3 wherein the third light path plane is perpendicular to the XZ plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976830.3A CN114200423B (en) | 2020-09-17 | 2020-09-17 | A distance measuring optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976830.3A CN114200423B (en) | 2020-09-17 | 2020-09-17 | A distance measuring optical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114200423A CN114200423A (en) | 2022-03-18 |
| CN114200423B true CN114200423B (en) | 2024-12-10 |
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| CN202010976830.3A Active CN114200423B (en) | 2020-09-17 | 2020-09-17 | A distance measuring optical system |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213210462U (en) * | 2020-09-17 | 2021-05-14 | 苏州睿牛机器人技术有限公司 | Distance measuring optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6344845B2 (en) * | 2014-04-14 | 2018-06-20 | リコーインダストリアルソリューションズ株式会社 | Laser distance measuring device |
| CN104977694A (en) * | 2015-07-15 | 2015-10-14 | 福建福光股份有限公司 | Visible light imaging and laser ranging optical axis-sharing lens and imaging ranging method thereof |
| CN108680116B (en) * | 2018-06-12 | 2024-05-28 | 苏州睿牛机器人技术有限公司 | laser sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213210462U (en) * | 2020-09-17 | 2021-05-14 | 苏州睿牛机器人技术有限公司 | Distance measuring optical system |
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| CN114200423A (en) | 2022-03-18 |
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