CN218994341U - Auto-collimation theodolite - Google Patents
Auto-collimation theodolite Download PDFInfo
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- CN218994341U CN218994341U CN202223454424.4U CN202223454424U CN218994341U CN 218994341 U CN218994341 U CN 218994341U CN 202223454424 U CN202223454424 U CN 202223454424U CN 218994341 U CN218994341 U CN 218994341U
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Abstract
The utility model relates to an auto-collimation theodolite which comprises a shell, a light source, a light-transmitting scribing plate with scribing lines, a beam splitting prism group, a focusing lens group, a main object lens group, a visual reticle, a visual lens group and a light-transmitting baffle plate, wherein the light source, the light-transmitting scribing plate and the light-transmitting baffle plate are sequentially arranged in the shell from top to bottom, the eye mirror group, the visual reticle, the beam splitting prism group, the focusing lens group and the main object lens group are sequentially arranged in the shell along the horizontal direction, the light-transmitting baffle plate is positioned above the beam splitting prism group, and at least the side surface of the light-transmitting baffle plate, which faces the beam splitting prism group, is coated with a black coating. According to the auto-collimation theodolite, the light-transmitting baffle is arranged between the light-transmitting scribing plate and the light-splitting prism group, so that reflected light on the surface of the light-transmitting scribing plate can be well eliminated, the effect of eliminating ghost images on the visual reticle during the aiming of the auto-collimation theodolite is achieved, the aiming of human eyes is facilitated, the aiming speed and the aiming precision are greatly improved, and the use is convenient and quick.
Description
Technical Field
The utility model belongs to the technical field of precise instruments and meters, and particularly relates to an auto-collimation theodolite.
Background
The auto-collimation theodolite is an important optical precision measuring instrument, which utilizes the optical auto-collimation principle to realize small-angle measurement, irradiates a light-transmitting cross scribing plate through a light source, projects the light-transmitting cross scribing plate out, reflects the light-transmitting cross scribing plate back to the instrument through an external plane mirror, and then forms an image on a visual aiming cross scribing plate through a telescopic system. The method has great advantages in the aspect of ultra-precise non-contact measurement, is widely applied to the precise measurement fields of straightness of a guide rail platform, flatness of a precise platform and the like, and is one of the necessary conventional measuring instruments in the departments of metering, industrial production and the like.
The light-transmitting cross scribing plate used on the traditional auto-collimation theodolite is very thin in light-transmitting cross lines, so that chromium plating scribing is adopted conventionally, the reflectivity of the chromium plating surface is high, when the instrument is in collimation or deviates from a tiny angle, the chromium plating surface can reflect received light, and collimated light rays are emitted again, so that ghost images as the same as the light-transmitting cross images can be seen by eyes of eyes at the position of receiving the reticle, as shown in fig. 1, aiming is not facilitated, and the aiming speed and accuracy of eyes are greatly reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the auto-collimation theodolite with high aiming speed and high precision.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the auto-collimation theodolite comprises a shell, a light source, a light-transmitting scribing plate with scribing lines, a beam splitting prism group, a focusing lens group, a main object lens group, a visual reticle and a visual lens group, wherein the light source, the light-transmitting scribing plate with the scribing lines, the beam splitting prism group, the focusing lens group, the main object lens group, the visual reticle and the visual lens group are respectively arranged in the shell;
the light source, the light-transmitting scribing plate and the light-transmitting baffle are sequentially arranged in the shell from top to bottom;
the visual lens group, the visual reticle, the beam splitting prism group, the focusing lens group and the main object lens group are sequentially arranged in the shell along the horizontal direction, the light transmission baffle is positioned above the beam splitting prism group, and at least the side surface of the light transmission baffle, which faces the beam splitting prism group, is coated with a black coating.
According to some embodiments of the utility model, the light-transmitting baffle and the light-transmitting scribing plate are in direct contact or bonded by an adhesive.
According to some embodiments of the utility model, the light transmissive barrier is a light transmissive metal barrier.
Preferably, the light-transmitting baffle is a copper plate.
According to some embodiments of the utility model, both sides of the light-transmitting barrier are respectively coated with the black coating.
According to some embodiments of the utility model, the center of the score line of the light transmissive baffle coincides with the center of the light transmissive score plate.
According to some embodiments of the utility model, the scribing lines of the light-transmitting baffle plate and the scribing lines of the light-transmitting scribing plate are the same.
In some embodiments, the score line of the light-transmissive baffle and the score line of the light-transmissive score plate are both cross score lines.
In some preferred and specific embodiments, the width of the score line of the light-transmissive baffle plate is 5-15 times the width of the score line of the light-transmissive score plate.
According to some embodiments of the utility model, the set of splitting prisms is a positive image splitting prism set; and/or, the light source is an LED.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the auto-collimation theodolite, the light-transmitting baffle is arranged between the light-transmitting scribing plate and the light-splitting prism group, so that reflected light on the surface of the light-transmitting scribing plate can be well eliminated, the effect of eliminating ghost images on the visual reticle during the aiming of the auto-collimation theodolite is achieved, the aiming of human eyes is facilitated, the aiming speed and the aiming precision are greatly improved, and the use is convenient and quick.
Drawings
FIG. 1 is a photograph of a reticle that can be observed by the human eye of a conventional auto-collimation theodolite;
in fig. 1: 1', a light-transmitting cross image; 2', ghost images;
FIG. 2 is a schematic diagram of an auto-collimation theodolite according to an embodiment of the utility model;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is a schematic view of the light transmissive baffle of the auto-collimation theodolite of FIG. 2;
FIG. 5 is an optical schematic of the autocollimation theodolite of FIG. 2;
FIG. 6 is a photograph of a visual reticle that can be observed by the human eye of the auto-collimation theodolite of FIG. 2;
fig. 2 to 6 show: 1. a light-transmitting cross image;
2. a housing; 3. a light source; 4. a light-transmitting scribing plate; 5. a beam splitting prism group; 6. focusing lens group; 7. a main objective lens group; 8. visual reticle; 9. a set of eye-glasses; 10. a light-transmitting baffle; 11. scribing lines; 12. plane mirror.
Detailed Description
The utility model is further described below with reference to the accompanying drawings of the specification:
the auto-collimation theodolite as shown in fig. 2-3 comprises a shell 2, a light source 3, a light-transmitting scribing plate 4 with scribing lines, a light splitting prism group 5, a focusing lens group 6, a main objective lens group 7, a visual reticle 8, a visual lens group 9 and a light-transmitting baffle 10 which are respectively arranged in the shell 2, wherein the light source 3, the light-transmitting scribing plate 4 and the light-transmitting baffle 10 are sequentially arranged in the shell 1 from top to bottom, the eye lens group 9, the visual reticle 8, the light splitting prism group 5, the focusing lens group 6 and the main objective lens group 7 are sequentially arranged in the shell 2 along the horizontal direction, and the light-transmitting baffle 10 is positioned above the light splitting prism group 5.
The scribing line of the transparent scribing plate 4 is a cross scribing line, in this example, as shown in fig. 4, the scribing line of the transparent baffle plate 10 is also a cross scribing line 11, and the center of the scribing line of the transparent baffle plate 10 coincides with the center of the scribing line of the transparent scribing plate 4, for example, the width of the cross scribing line of the transparent scribing plate 4 is 0.03mm, and the width of the cross scribing line of the transparent baffle plate 10 is 0.3mm.
In this example, the transparent baffle 10 is adhered to the transparent scribing plate 4 through an adhesive, specifically, the transparent baffle 10 is a transparent copper plate, and both side surfaces are respectively coated with a black coating, so that reflected light on the surface of the transparent scribing plate 4 can be well eliminated, the effect of eliminating ghost images on the visual reticle 8 when the auto-collimation theodolite is aimed is achieved, the aim of eyes is facilitated, the aim speed and accuracy are greatly improved, and the use is convenient and quick.
In this example, the beam splitting prism group 5 is a positive image beam splitting prism group, and the light source 3 is an LED light source.
The beam splitting prism group 5, the focusing lens group 6, the main objective lens group 7 and the eye mirror group 9 in the utility model can all adopt the prior art, and the utility model is not limited.
Referring to fig. 5, the optical principle of the auto-collimation theodolite is shown, after the light source 3 is turned on, the emitted light irradiates the light-transmitting scribing plate 4, irradiates the light-splitting prism group 5 after passing through the cross scribing lines on the light-transmitting scribing plate 4 and the light-transmitting baffle plate 10, irradiates the light-splitting prism group 5 after passing through the light-splitting prism group 5 to project, sequentially passes through the focusing lens group 6 and the main objective lens group 7 to project onto the external plane mirror 11, then is reflected back to the auto-collimation theodolite by the external plane mirror 11, and the reflected light sequentially passes through the main objective lens group 7, the focusing lens group 6 and the light-splitting prism group 5 to irradiate onto the visual reticle 8, and forms images on the visual reticle 8.
The arrangement of the auto-collimation theodolite light-transmitting baffle 10 eliminates the reflected light on the surface of the light-transmitting scribing plate 4, eliminates the ghost image formed on the visual reticle 8, and particularly, as shown in fig. 6, only one light-transmitting cross image 1 is formed on the visual reticle 8, so that the human eye aiming speed and precision are greatly improved, and the user is more convenient and quick.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The utility model provides an auto-collimation theodolite, includes the casing, is in light source, the printing opacity that has the marking line that cuts out board, beam splitting prism group, focusing mirror group, main thing mirror group, visual reticle and visual mirror group in the casing respectively, its characterized in that: the auto-collimation theodolite further comprises a light-transmitting baffle plate with a scribing line arranged in the shell;
the light source, the light-transmitting scribing plate and the light-transmitting baffle are sequentially arranged in the shell from top to bottom;
the visual lens group, the visual reticle, the beam splitting prism group, the focusing lens group and the main object lens group are sequentially arranged in the shell along the horizontal direction, the light transmission baffle is positioned above the beam splitting prism group, and at least the side surface of the light transmission baffle, which faces the beam splitting prism group, is coated with a black coating.
2. An auto-collimation theodolite according to claim 1, wherein: the light-transmitting baffle plate is in direct contact with the light-transmitting scribing plate, or the light-transmitting baffle plate is adhered to the light-transmitting scribing plate through an adhesive.
3. An autocollimation theodolite according to claim 1, characterised in that: the light-transmitting baffle is a light-transmitting metal baffle.
4. An auto-collimation theodolite according to claim 3, wherein: the light-transmitting baffle is a copper plate.
5. An auto-collimation theodolite according to claim 1, wherein: the two side surfaces of the light-transmitting baffle are respectively coated with the black coating.
6. An auto-collimation theodolite according to claim 1, wherein: the center of the scribing line of the light-transmitting baffle plate coincides with the center of the light-transmitting scribing plate.
7. An auto-collimation theodolite according to claim 1, wherein: the scribing lines of the light-transmitting baffle plate and the scribing lines of the light-transmitting scribing plate are the same.
8. An auto-collimation theodolite according to claim 7, wherein: the scribing lines of the light-transmitting baffle plate and the scribing lines of the light-transmitting scribing plate are cross scribing lines.
9. An auto-collimation theodolite according to claim 8, wherein: the width of the scribing line of the light-transmitting baffle plate is 5-15 times of the width of the scribing line of the light-transmitting scribing plate.
10. An auto-collimation theodolite according to any one of claims 1 to 9, characterised in that: the beam splitting prism group is a positive image beam splitting prism group; and/or, the light source is an LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223454424.4U CN218994341U (en) | 2022-12-23 | 2022-12-23 | Auto-collimation theodolite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223454424.4U CN218994341U (en) | 2022-12-23 | 2022-12-23 | Auto-collimation theodolite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218994341U true CN218994341U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223454424.4U Active CN218994341U (en) | 2022-12-23 | 2022-12-23 | Auto-collimation theodolite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218994341U (en) |
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2022
- 2022-12-23 CN CN202223454424.4U patent/CN218994341U/en active Active
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