CN210776122U - Coaxial auxiliary focusing navigation lens system - Google Patents
Coaxial auxiliary focusing navigation lens system Download PDFInfo
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- CN210776122U CN210776122U CN201921884630.4U CN201921884630U CN210776122U CN 210776122 U CN210776122 U CN 210776122U CN 201921884630 U CN201921884630 U CN 201921884630U CN 210776122 U CN210776122 U CN 210776122U
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Abstract
The utility model provides a coaxial auxiliary focusing navigation lens system, including the main camera lens, auxiliary focusing pattern light source and navigation camera lens, auxiliary focusing pattern light source is installed on the main camera lens lateral wall, the navigation camera lens is installed on the lateral wall of auxiliary focusing pattern light source, the slope is equipped with first spectroscope in the main camera lens, the slope is equipped with the second spectroscope in the auxiliary focusing pattern light source, the incident light of main camera lens reflects to the plane of reflection of second spectroscope through the plane of reflection of second spectroscope, and then reflect to the navigation camera lens formation of image through the plane of reflection of second spectroscope, like this the navigation camera lens coincides with the light path of main camera lens, thereby make the height of workstation can be adjusted wantonly, can not lead to the phenomenon that the image of navigation camera lens and the image of main camera lens appear the positional deviation, the light that auxiliary focusing pattern light source sent passes the pattern from the plane of transmission of second spectroscope after, reflect to the objective lens of main camera lens through the plane of first spectroscope, and entering the camera from the main lens to realize the auxiliary focusing function.
Description
Technical Field
The utility model relates to a camera lens technical field, in particular to coaxial supplementary navigation lens system that focuses.
Background
In recent years, with the development of industrial technologies, higher production requirements have been made on the size, surface flatness, and the like of products. The image measuring device can directly detect the surface of a sample, so that the image measuring device is widely applied to industrial production and detection.
In the prior art, an image measuring apparatus is generally provided with a worktable and a lens system disposed above the worktable, and an operator moves a test sample placed on the worktable to a position below the lens system by moving the worktable to perform measurement of a corresponding portion. For a large detection sample, it is difficult to accurately adjust the required test point on the detection sample to the position below the main lens for measurement, and a lot of time is consumed.
In order to accurately adjust a test point required on a test sample to be below a main lens for measurement, a conventional lens system is generally provided with a navigation lens, and the navigation lens presents imaging in a large range by using a small focal length, so that an operator can find the test point more easily in the imaging of the navigation lens, and the operator can conveniently adjust the test point to be below the main lens for measurement. The conventional navigation lens is usually arranged obliquely, an acute included angle is formed between the conventional navigation lens and a vertically arranged main lens, and when the lens moves up in height difference, a navigation image and an image of the main lens are subjected to displacement deviation, so that the intersection point of the main lens and the axis of the navigation lens is fixed in height, and the workbench can only move in fixed height. The existing lens system with the navigation lens and the main lens overlapped in light path is internally provided with a plurality of spectroscopes, and the light path of the navigation lens is adjusted by utilizing the spectroscopes, so that the navigation lens and the main lens are overlapped in light path, and the height of a workbench can be adjusted at will. For the lens system with the light paths of the navigation lens and the main lens overlapped, the height of the workbench is adjusted, and then the focusing is continuously carried out to clearly display the image of the detected sample, but the focusing of the lens is difficult, so that the whole measuring process takes long time.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a lens system that can make the height-adjustable of workstation and be convenient for focus.
To solve the above technical problems, the present invention provides a coaxial auxiliary focusing navigation lens system, which comprises a main lens, an auxiliary focusing pattern light source and a navigation lens, the auxiliary focusing pattern light source is arranged on the side wall of the main lens, the navigation lens is arranged on the side wall of the auxiliary focusing pattern light source, a first spectroscope is obliquely arranged at the mounting position corresponding to the auxiliary focusing pattern light source in the main lens, a second spectroscope is obliquely arranged at the installation position corresponding to the navigation lens in the auxiliary focusing pattern light source, the incident light of the main lens is reflected to the reflecting surface of the second spectroscope through the reflecting surface of the first spectroscope and then reflected to the navigation lens for imaging through the reflecting surface of the second spectroscope, and the light emitted by the auxiliary focusing pattern light source passes through the light transmitting surface of the second spectroscope and is reflected to the objective lens of the main lens through the reflecting surface of the first spectroscope.
Preferably, the axis of the secondary focus pattern light source is perpendicular to the axis of the main lens, and the axis of the navigation lens is perpendicular to the axis of the secondary focus pattern light source.
Preferably, the axis of the navigation lens is perpendicular to the axis of the main lens.
Preferably, the coaxial light source is installed on the side wall of the main lens, a third light splitter is obliquely arranged at the installation position corresponding to the coaxial light source in the main lens, and light emitted by the coaxial light source is reflected to the objective lens of the main lens through the reflecting surface of the third light splitter.
Preferably, including the laser source, the laser source is installed on coaxial light source's lateral wall, the mounted position slope that corresponds the laser source in the coaxial light source is equipped with fourth spectroscope, the light that the laser source sent reflects to the plane of reflection of third spectroscope through the plane of reflection of fourth spectroscope, reflects to the objective of main lens through the plane of reflection of third spectroscope again.
Preferably, the axis of the coaxial light source is perpendicular to the axis of the main lens, and the axis of the laser source is perpendicular to the axis of the coaxial light source.
Preferably, the axis of the laser source is perpendicular to the axis of the main lens.
The utility model discloses following beneficial effect has: because the incident light of the main lens is reflected to the reflecting surface of the second spectroscope through the reflecting surface of the first spectroscope and then reflected to the navigation lens through the reflecting surface of the second spectroscope for imaging, the light path of the navigation lens is overlapped with that of the main lens, so that the height of the workbench can be adjusted at will; the light emitted by the auxiliary focusing pattern light source passes through the light-transmitting surface of the second spectroscope and is reflected to the objective lens of the main lens through the reflecting surface of the first spectroscope, namely, the auxiliary focusing pattern light source projects a pattern as a main lens focusing reference pattern, the pattern is projected to the object plane and enters the camera from the main lens through the mirror reflection of the object plane, and the front focus of the main lens is just on the object plane when the pattern is clear, so that the auxiliary focusing function is realized.
Drawings
FIG. 1 is a front view of a coaxial auxiliary focus navigation lens system;
FIG. 2 is a side view of a coaxial auxiliary focus navigation lens system;
FIG. 3 is an internal cross-sectional view of a coaxial auxiliary focus navigation lens system.
Description of reference numerals: 1-main lens; 2-an auxiliary focus pattern light source; 3-a navigation lens; 4-a coaxial light source; 5-a laser source; 6-a first beam splitter; 7-a second beam splitter; 8-a third spectroscope; 9-fourth beam splitter.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1 and 2, the coaxial auxiliary focus navigation lens system includes a main lens 1, an auxiliary focus pattern light source 2, a navigation lens 3, a coaxial light source 4, and a laser light source 5, the auxiliary focus pattern light source 2 and the coaxial light source 4 are installed on a sidewall of the main lens 1, the navigation lens 3 is installed on a sidewall of the auxiliary focus pattern light source 2, and the laser light source 5 is installed on a sidewall of the coaxial light source 4. Wherein, the axis of the auxiliary focusing pattern light source 2 is perpendicular to the axis of the main lens 1, the axis of the navigation lens 3 is perpendicular to the axis of the auxiliary focusing pattern light source 2, and the axis of the navigation lens 3 is perpendicular to the axis of the main lens 1; the axis of the coaxial light source 4 is perpendicular to the axis of the main lens 1, the axis of the laser source 5 is perpendicular to the axis of the coaxial light source 4, and the axis of the laser source 5 is perpendicular to the axis of the main lens 1.
Fig. 3 shows an internal cross-sectional view of the coaxial auxiliary focusing navigation lens system, a first beam splitter 6 is obliquely arranged in the main lens 1 corresponding to the installation position of the auxiliary focusing pattern light source 2, a second beam splitter 7 is obliquely arranged in the auxiliary focusing pattern light source 2 corresponding to the installation position of the navigation lens 3, a third beam splitter 8 is obliquely arranged in the main lens 1 corresponding to the installation position of the coaxial light source 4, and a fourth beam splitter 9 is obliquely arranged in the coaxial light source 4 corresponding to the installation position of the laser source 5. The light emitted by the auxiliary focusing pattern light source 2 passes through the light-transmitting surface of the second beam splitter 7 and is reflected to the objective lens of the main lens 1 through the reflecting surface of the first beam splitter 6; the light emitted by the coaxial light source 4 passes through the light-transmitting surface of the fourth spectroscope 9 and is reflected to the objective lens of the main lens 1 through the reflecting surface of the third spectroscope 8; incident light of the main lens 1 is reflected to a reflecting surface of the second spectroscope 7 through a reflecting surface of the first spectroscope 6, and then is reflected to the navigation lens 3 through the reflecting surface of the second spectroscope 7 to be imaged; light emitted by the laser source 5 is reflected to the reflecting surface of the third beam splitter 8 through the reflecting surface of the fourth beam splitter 9, and then is reflected to the objective lens of the main lens 1 through the reflecting surface of the second beam splitter 7.
Because the incident light of the main lens 1 is reflected to the reflecting surface of the second spectroscope 7 through the reflecting surface of the first spectroscope 6 and then reflected to the navigation lens 3 through the reflecting surface of the second spectroscope 7 for imaging, the light path of the navigation lens 3 is overlapped with that of the main lens 1, and the height of the workbench can be adjusted at will; after passing through the light-transmitting surface of the second beam splitter 7, the light emitted by the auxiliary focusing pattern light source 2 is reflected to the objective lens of the main lens 1 through the reflecting surface of the first beam splitter 6, namely, the auxiliary focusing pattern light source 2 projects a pattern as a main lens focusing reference pattern, the pattern is projected to an object plane and enters the camera from the main lens through the mirror reflection of the object plane, and when the pattern is clear, the front focus of the main lens is just on the object plane, so that the auxiliary focusing function is realized.
In the embodiment, the coaxial light source 4 can provide uniform illumination to avoid the reflection of the detection sample, so that the imaging accuracy is improved; the laser source 5 is used for assisting navigation, laser emitted by the laser source irradiates in a detection sample, and after an operator moves a test point of the detection sample to the position of the laser, the operator can find the test point in the navigation lens 3 more quickly according to the laser due to obvious laser imaging.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (7)
1. The coaxial auxiliary focusing navigation lens system is characterized in that: the auxiliary focusing pattern light source is installed on the side wall of the main lens, the navigation lens is installed on the side wall of the auxiliary focusing pattern light source, a first spectroscope is obliquely arranged at the installation position, corresponding to the auxiliary focusing pattern light source, in the main lens, a second spectroscope is obliquely arranged at the installation position, corresponding to the navigation lens, in the auxiliary focusing pattern light source, incident light of the main lens is reflected to the reflection surface of the second spectroscope through the reflection surface of the first spectroscope and then is reflected to the navigation lens for imaging through the reflection surface of the second spectroscope, and light emitted by the auxiliary focusing pattern light source is reflected to the objective lens of the main lens through the reflection surface of the first spectroscope after passing through the transmission surface of the second spectroscope.
2. The coaxial auxiliary focus navigation lens system of claim 1, wherein: the axis of the auxiliary focusing pattern light source is perpendicular to the axis of the main lens, and the axis of the navigation lens is perpendicular to the axis of the auxiliary focusing pattern light source.
3. The coaxial auxiliary focus navigation lens system of claim 1, wherein: the axis of the navigation lens is perpendicular to the axis of the main lens.
4. The coaxial auxiliary focus navigation lens system of claim 1, wherein: including coaxial light source, coaxial light source installs on the main lens lateral wall, the mounted position slope that corresponds coaxial light source in the main lens is equipped with the third beam splitter, the light that coaxial light source sent reflects to the objective of main lens through the plane of reflection of third beam splitter.
5. The coaxial auxiliary focus navigation lens system of claim 4, wherein: including the laser source, the laser source is installed on coaxial light source's lateral wall, the mounted position slope that corresponds the laser source in the coaxial light source is equipped with fourth spectroscope, the light that the laser source sent reflects the plane of reflection to third spectroscope through the plane of reflection of fourth spectroscope, reflects the objective to the main lens through the plane of reflection of third spectroscope again.
6. The coaxial auxiliary focus navigation lens system of claim 5, wherein: the axis of the coaxial light source is perpendicular to the axis of the main lens, and the axis of the laser source is perpendicular to the axis of the coaxial light source.
7. The coaxial auxiliary focus navigation lens system of claim 6, wherein: the axis of the laser source is perpendicular to the axis of the main lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921884630.4U CN210776122U (en) | 2019-10-31 | 2019-10-31 | Coaxial auxiliary focusing navigation lens system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921884630.4U CN210776122U (en) | 2019-10-31 | 2019-10-31 | Coaxial auxiliary focusing navigation lens system |
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| Publication Number | Publication Date |
|---|---|
| CN210776122U true CN210776122U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921884630.4U Active CN210776122U (en) | 2019-10-31 | 2019-10-31 | Coaxial auxiliary focusing navigation lens system |
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|---|---|
| CN (1) | CN210776122U (en) |
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2019
- 2019-10-31 CN CN201921884630.4U patent/CN210776122U/en active Active
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