CN219202032U - Combined optical prism - Google Patents
Combined optical prism Download PDFInfo
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- CN219202032U CN219202032U CN202320776139.XU CN202320776139U CN219202032U CN 219202032 U CN219202032 U CN 219202032U CN 202320776139 U CN202320776139 U CN 202320776139U CN 219202032 U CN219202032 U CN 219202032U
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- prism
- groove
- reflecting
- reflecting plane
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Abstract
The utility model relates to the technical field of prisms, in particular to a combined optical prism which comprises an outer prism and an inner prism; one end of the outer prism is provided with a groove, and the inner prism is provided with a rotating end which is accommodated in the groove; the rotating end rotates in the groove, and the degree of an included angle between a reflecting plane of the inner prism and a reflecting plane of the outer prism is adjusted. According to the embodiment of the utility model, the rotating end rotates in the groove, and the included angle between one reflecting plane of the inner prism and one reflecting plane of the outer prism is adjusted to be 45 degrees, so that the same incident light beam can be vertically reflected on one reflecting plane of the inner prism and one reflecting plane of the outer prism, and the light beam is reflected at right angles on the other reflecting plane, so that the difficulty in assembling and adjusting the light path needing right angle turning is reduced.
Description
Technical Field
The utility model relates to the technical field of prisms, in particular to a combined optical prism.
Background
In the light path adjustment process, when the light path adjustment of the planar light source is processed, the reflection of the planar reflector is mostly adopted.
However, when the light path is assembled and adjusted in the light path with the requirement of right angle turning, only a plane reflecting mirror is used, so that the light path cannot be ensured to be along the right angle turning, and the difficulty of assembling and adjusting is greatly increased in the light path assembling and adjusting which is slightly complicated in practice.
Disclosure of Invention
The utility model aims to provide a combined optical prism for right-angle turning of an optical path, which is characterized in that a rotating end rotates in a groove to adjust the included angle between the reflecting plane of an inner prism and the reflecting plane of an outer prism so as to obtain the right-angle turning of the optical path.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a combined optical prism comprises an outer prism and an inner prism;
one end of the outer prism is provided with a groove, and the inner prism is provided with a rotating end which is accommodated in the groove;
the rotating end rotates in the groove, and the degree of an included angle between a reflecting plane of the inner prism and a reflecting plane of the outer prism is adjusted;
an included angle between a reflecting plane of the inner prism and a reflecting plane of the outer prism is 45 degrees, and the same incident light beam can be vertically reflected on one reflecting plane and can be reflected at right angles on the other reflecting plane.
Preferably, the outer prism is a cube prism.
Preferably, the groove is positioned at the center of one end of the outer prism, and the inner wall and the bottom wall of the groove are cylindrical;
the rotating end is cylindrical and matched with the groove, and the rotating end rotates along the central axis of the bottom wall of the groove.
Preferably, the other end of the inner prism opposite to the rotating end is provided with a reflecting end.
Preferably, the reflecting end is cube-shaped.
Preferably, the bottom surface center of the reflecting end is coaxially connected with the top surface center of the rotating end.
Preferably, the outer prism and the reflecting end are both in a cube shape;
the height of the side wall of the groove is one half of the length of the outer prism, and the diameter of the circular bottom wall of the groove is one half of the length of the outer prism.
Preferably, the reflecting surfaces of the outer prism and the reflecting end are respectively provided with a reflecting film.
Preferably, the reflective film is a reflective aluminum film or a reflective silver film.
Preferably, the length of the reflecting end is 1.4 times that of the outer prism.
Compared with the prior art, the utility model has the beneficial effects that:
through the rotation of the rotating end in the groove, the included angle between one reflecting plane of the inner prism and one reflecting plane of the outer prism is adjusted to be 45 degrees, so that the same incident light beam can be vertically reflected on one reflecting plane of the inner prism and one reflecting plane of the outer prism, and the light beam can be reflected at right angles on the other reflecting plane, thereby reducing the difficulty in assembling and adjusting the light path needing right angle turning.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a schematic perspective view of a combined optical prism according to an embodiment;
FIG. 2 is a schematic diagram illustrating an adjustment of an optical path of a combined optical prism according to an embodiment;
FIG. 3 is a schematic diagram illustrating another optical path adjustment of the combined optical prism according to the embodiment;
fig. 4 is an exploded view of the combined optical prism according to the embodiment.
In the figure:
10. an outer prism; 11. a groove; 20. an inner prism; 21. a rotating end; 22. a reflective end; 3. a reflection plane; 31. an outer prism reflection plane; 32. a reflective end reflective plane; 4. a reflective film.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings.
As shown in fig. 1-4, embodiments provided for by the present utility model.
The embodiment of the utility model provides a combined optical prism, which comprises an outer prism 10 and an inner prism 20;
one end of the outer prism 10 is provided with a groove 11, the inner prism 20 is provided with a rotating end 21, and the rotating end 21 is accommodated in the groove 11;
the rotating end 21 rotates in the groove 11 to adjust the degree of an included angle between a reflecting plane 3 of the inner prism 20 and a reflecting plane 3 of the outer prism 10;
a reflecting plane 3 of the inner prism 20 forms an angle of 45 ° with a reflecting plane 3 of the outer prism 10, and the same incident light beam can be reflected perpendicularly on one of the reflecting planes 3 and at right angles on the other reflecting plane 3.
In this embodiment, referring to fig. 1, 2 and 4, one end of the outer prism 10 is provided with a groove 11, the inner prism 20 is provided with a rotating end 21, the rotating end 21 is accommodated in the groove 11, and the rotating end 21 can freely rotate in the groove 11, that is, the rotating end 21 can rotate along one end face of the outer prism 10 provided with the groove 11, so as to adjust the degree of an included angle between a reflecting plane 3 of the inner prism 20 and a reflecting plane 3 of the outer prism 10, and when the included angle between the reflecting plane 3 of the inner prism 20 and the reflecting plane 3 of the outer prism 10 is adjusted to be 45 degrees, the same incident beam can be reflected vertically on one reflecting plane 3, and can be reflected at right angles on the other reflecting plane 3, so that a right angle turning optical path can be conveniently obtained.
In one embodiment, the outer prism 10 is a cube prism.
In this embodiment, referring to fig. 1, the outer prism 10 is configured as a cube prism, and the bottom surface and the top surface thereof are perpendicular to the side surfaces, so that the rotating end 21 can horizontally rotate on the end surface of the outer prism 10, and a 45 ° included angle between the reflecting plane 31 of the outer prism and the reflecting plane 32 of the reflecting end is quickly obtained.
In one embodiment, the groove 11 is located at the center of one end of the outer prism 10, and the inner wall and the bottom wall of the groove are cylindrical; the rotating end 21 is cylindrical in shape matching the groove 11, and the rotating end 21 rotates along the central axis of the bottom wall of the groove 11.
In this embodiment, referring to fig. 1 and fig. 4, the groove 11 is disposed at the center of the top end surface of the outer prism 10, and the inner wall and the bottom wall thereof are cylindrical, so that the rotating end 21 is convenient to rotate, at this time, the rotating end 21 is also cylindrical matching with the groove 11, and the rotating end 21 of the cylinder can rotate along the central axis of the bottom wall thereof in the groove 11, so as to ensure that no horizontal offset occurs in the rotating process.
In one embodiment, the inner prism 20 is provided with a reflective end 22 at the opposite end to the rotating end 21.
In this embodiment, referring to fig. 1 and 4, the inner prism 20 is provided with a reflective end 22 at the other end opposite to the rotating end 21, so as to serve as a portion of the inner prism 20 for reflecting light, i.e. the reflective end 22 of the inner prism 20 is driven to rotate together during rotation of the rotating end 21 of the inner prism 20, so as to adjust the angle between the reflective plane 32 of the reflective end and the reflective plane 31 of the outer prism.
In one embodiment, the reflective end 22 is cube-shaped.
In this embodiment, referring to fig. 1 and 4, the reflecting end 22 is provided in a cube shape, and the reflecting end 22 is driven to horizontally rotate by the rotating end 21, similar to the shape of the cube outer prism 10, so that the included angle between the reflecting plane 32 of the reflecting end and the reflecting plane 31 of the outer prism can be quickly adjusted to 45 °.
In one embodiment, the center of the bottom surface of the reflective end 22 is coaxially connected with the center of the top surface of the rotary end 21.
In this embodiment, referring to fig. 4, the center of the bottom surface of the reflecting end 22 is coaxially connected with the center of the top surface of the rotating end 21, so that the rotating angle of the rotating end 21 and the reflecting end 22 is kept consistent, therefore, on the end surface of the outer prism 10 contacting the reflecting end 22, scales can be set at the centers of four edges on the surface, and when the side edges of the reflecting end 22 are aligned with the scales at the center, an accurate 45 ° included angle can be obtained.
In one embodiment, both the outer prism 10 and the reflective end 22 are cube-shaped; the height of the side wall of the groove 11 is one half of the length of the edge of the outer prism 10, and the diameter of the circular bottom wall of the groove 11 is one half of the length of the edge of the outer prism 10.
In this embodiment, referring to fig. 1, fig. 2 and fig. 4, the outer prism 10 and the reflecting end 22 are both in the shape of an regular cube, and each surface of the regular cube has the same size, so that subsequent processing is convenient, that is, two identical regular cubes can be processed simultaneously in the production process, one for manufacturing the outer prism 10 and the other for manufacturing the reflecting end 22, and materials can be saved. The height of the side wall of the groove 11 is set to be one half of the length of the edge of the outer prism 10, and the diameter of the circular bottom wall of the groove 11 is set to be one half of the length of the edge of the outer prism 10, at which time the inner space of the groove 11 is large enough so that the cylindrical rotating end 21 is also thick enough to prevent the rotating end 21 to which it is connected from breaking during rotation when the reflecting end 22 is adjusted.
In one embodiment, the reflective surface 3 of the outer prism 10 and the reflective end 22 each have a reflective film 4 thereon.
In the present embodiment, the reflection films 4 are provided on the reflection planes 3 of the outer prism 10 and the reflection end 22 for increasing the reflectivity of all the reflection planes 3.
In one embodiment, the reflective film 4 is a reflective aluminum film or a reflective silver film.
In the present embodiment, in the selection of the reflective film 4, a reflective aluminum film or a reflective silver film is used, and the loss of the optical path can be reduced due to its good reflectance.
In one embodiment, the edge length of reflective end 22 is 1.4 times the edge length of outer prism 10.
In this embodiment, referring to fig. 2 and 3, the edge length of the reflecting end 22 is 1.4 times that of the outer prism 10, that is, the edge length of the reflecting end 22 is approximately ∈2 times that of the outer prism 10, the size of the cube of the reflecting end 22 is slightly smaller than that of the cube of the outer prism 10, and when the edge of the reflecting end 22 is aligned with the center of the edge of the contact surface of the outer prism 10, a gap is left, and a center scale is provided at the center of the four edges on the end surface of the outer prism 10 contacted with the reflecting end 22, so that the alignment can be performed conveniently and accurately by the gap.
It is apparent that the embodiments described above are only some embodiments of the present application, but not all embodiments, the preferred embodiments of the present application are given in the drawings, but not limiting the patent scope of the present application. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing, or equivalents may be substituted for elements thereof. All equivalent structures made by the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the protection scope of the application.
Claims (10)
1. A combined optical prism, which is characterized by comprising an outer prism and an inner prism;
one end of the outer prism is provided with a groove, and the inner prism is provided with a rotating end which is accommodated in the groove;
the rotating end rotates in the groove, and the degree of an included angle between a reflecting plane of the inner prism and a reflecting plane of the outer prism is adjusted;
an included angle between a reflecting plane of the inner prism and a reflecting plane of the outer prism is 45 degrees, and the same incident light beam can be vertically reflected on one reflecting plane and can be reflected at right angles on the other reflecting plane.
2. A combined optical prism as claimed in claim 1 wherein the outer prism is a cube prism.
3. A combined optical prism according to claim 2, wherein the groove is located at the center of one end of the outer prism, and the inner wall and the bottom wall of the groove are cylindrical;
the rotating end is cylindrical and matched with the groove, and the rotating end rotates along the central axis of the bottom wall of the groove.
4. A combined optical prism as claimed in claim 3, wherein the other end of the inner prism opposite to the rotating end is provided with a reflecting end.
5. A combined optical prism as claimed in claim 4 wherein the reflective end is cube-shaped.
6. A combined optical prism as claimed in claim 5, wherein the center of the bottom surface of the reflecting end is coaxially connected with the center of the top surface of the rotating end.
7. The combination optical prism of claim 6 wherein the outer prism and the reflective end are both cube-shaped;
the height of the side wall of the groove is one half of the length of the outer prism, and the diameter of the circular bottom wall of the groove is one half of the length of the outer prism.
8. The combination optical prism of claim 7 wherein the reflective surfaces of the outer prism and the reflective end each have a reflective film thereon.
9. The combination optical prism of claim 8, wherein the reflective film is a reflective aluminum film or a reflective silver film.
10. A combined optical prism as claimed in claim 7, wherein the length of the reflecting end is 1.4 times the length of the outer prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320776139.XU CN219202032U (en) | 2023-04-11 | 2023-04-11 | Combined optical prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320776139.XU CN219202032U (en) | 2023-04-11 | 2023-04-11 | Combined optical prism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219202032U true CN219202032U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320776139.XU Active CN219202032U (en) | 2023-04-11 | 2023-04-11 | Combined optical prism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219202032U (en) |
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2023
- 2023-04-11 CN CN202320776139.XU patent/CN219202032U/en active Active
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