CN213748262U - High-precision folding and reversing mechanism of optical machine - Google Patents
High-precision folding and reversing mechanism of optical machine Download PDFInfo
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- CN213748262U CN213748262U CN202023173613.5U CN202023173613U CN213748262U CN 213748262 U CN213748262 U CN 213748262U CN 202023173613 U CN202023173613 U CN 202023173613U CN 213748262 U CN213748262 U CN 213748262U
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Abstract
The utility model discloses a reflection mechanism is rolled over to high accuracy ray apparatus, including referring to arm optic fibre, collimating mirror, first pyramid prism, second pyramid prism and speculum, plated the antireflection coating on first pyramid prism's the plane of projection, the antireflection coating has been plated to the first half of second pyramid prism's the plane of projection, and the latter half is the polished surface, and the internal reflection membrane has been plated to one of them side of speculum, and the opposite side is polished surface, and the polished surface of speculum is in the same place with second pyramid prism's polished surface butt joint after-fixing. The utility model discloses a trans can guarantee that the speculum remains clean throughout in speculum and the second cone prism adoption veneer to reduce and adjust the degree of difficulty, save time and manpower to during the light that this mode can guarantee to reach the speculum was in the former way anti-return entering optic fibre under the nearly lossless condition, very big improvement like this the utilization ratio and the regulation precision of light energy.
Description
Technical Field
The utility model relates to a reflection mechanism is rolled over to high accuracy ray apparatus belongs to the optical equipment field.
Background
The Michelson interferometer is a precise optical instrument designed and manufactured for researching 'ether' drift by the cooperation of Michelson and Morel in the physical scientist in the 1883. It uses partial amplitude method to produce double light beams to realize interference. By adjusting the interferometer, it is possible to generate interference fringes of equal thickness and also to generate interference fringes of equal inclination. Mainly used for measuring length and refractive index.
The refraction and reflection mechanism is shown in figure 1 and comprises a reference arm optical fiber, a collimating mirror, a first pyramid prism, a second pyramid prism and a reflecting mirror, wherein the optical fiber is emergent from the reference arm optical fiber and is changed into collimated light after being collimated by a collimating lens, and the collimated light sequentially enters the first pyramid prism and the second pyramid prism, then reaches the reflecting mirror and then returns to the reference arm optical fiber. The reflector is separated from the second pyramid prism, antireflection films are arranged on the projection surface of the second pyramid prism and the projection surface of the first pyramid prism, and the reflection film of the reflector is positioned on one side close to the second pyramid prism.
Because the diameter of the optical fiber is extremely small, in the micron order, a slight deviation in the X, Y direction of the light returning to the optical fiber will cause optical energy loss, that is, the mirror and the second tapered prism are separated, as shown in fig. 1, the sensitivity of the mirror is high, and after reflection of the mirror, due to the deviation of a slight angle, the reflected light is propagated over a long distance, so that it is extremely difficult to debug that the reflected light just enters the optical fiber, which consumes a lot of time and labor.
SUMMERY OF THE UTILITY MODEL
To the technical problem mentioned above, an object of the utility model is to provide a reflection mechanism is rolled over to high accuracy ray apparatus. The utilization rate and the regulation precision of light energy are improved, and the regulation is convenient.
In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a high accuracy ray apparatus refraction and reflection mechanism, is including referring to arm optic fibre, collimating mirror, first pyramid prism, second pyramid prism and speculum, and optic fibre becomes collimated light after the collimation of collimation lens from referring to arm optic fibre outgoing, collimated light arrives the speculum after getting into first pyramid prism and second pyramid prism in proper order, then returns to get into and refer to arm optic fibre, its characterized in that: the reflection reducing coating is plated on the projection surface of the first pyramid prism, the reflection reducing coating is plated on the upper half portion of the projection surface of the second pyramid prism, the polishing surface is arranged on the lower half portion of the projection surface of the second pyramid prism, the internal reflection coating is plated on one side of the reflector, the polishing surface is arranged on the other side of the reflector, and the polishing surface of the reflector and the polishing surface of the second pyramid prism are fixedly connected together after being in butt joint.
In the scheme, the method comprises the following steps: and the polished surface of the reflector is glued with the polished surface of the second pyramid prism.
The light rays are emitted from the reference arm optical fibers, and are changed into collimated light after being collimated by the collimating lens, and the collimated light enters the first pyramid prism and the second pyramid prism and finally reaches the reflector. The pyramid prism has the characteristic that incident light is parallel to emergent light, and the reflector has the characteristic of original path reflection, so that light reaching the reflector can be reflected back to the reference arm optical fiber in the original path and finally enters the reference arm optical fiber.
The upper half part of the projection surface of the second pyramid prism is high-transmittance, and the lower half part of the projection surface of the second pyramid prism is a polished surface without coating and is glued with the reflector, so that the reflection surface of the reflector is parallel to the projection surface of the pyramid prism in height. Thus, a variable for debugging is omitted, and the feasibility of the project is greatly increased.
The utility model discloses following beneficial effect has: the utility model discloses a speculum and second cone prism adopt veneer, internal reflection formula can guarantee that the speculum remains clean all the time, reduce and adjust the degree of difficulty, save time and manpower to during the light that the speculum can be guaranteed to arrive was returned to the former way under the nearly lossless condition and is got into optic fibre, very big improvement like this the utilization ratio and the regulation precision of light energy.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is a schematic structural diagram (incident light) of the present invention.
Fig. 3 is a schematic structural diagram (emergent light) of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
example 1
The upper, lower, left, right, back, front, etc. of the utility model only represent the orientation in the drawing. Not the absolute position of the product.
As shown in fig. 2-3, the high-precision optical-mechanical refraction and reflection mechanism includes a reference arm optical fiber 1, a collimator 2, a first pyramid prism 3, a second pyramid prism 4, and a reflector 5, the optical fiber exits from the reference arm optical fiber 1, becomes collimated light after being collimated by a collimating lens 2, the collimated light sequentially enters the first pyramid prism 3 and the second pyramid prism 4 and reaches the reflector 5, and then returns to the reference arm optical fiber 1, an antireflection film 6 is plated on a projection surface of the first pyramid prism 3, an antireflection film 6 is plated on an upper half portion of a projection surface of the second pyramid prism 4, a lower half portion is a polishing surface, an internal reflection film 7 is plated on one side of the reflector 5, a polishing surface is formed on the other side of the reflector 5, and the polishing surface of the reflector 5 is fixed together after being abutted with the polishing surface of the second pyramid prism 4. For example, the polished surface of mirror 5 is glued to the polished surface of second corner cube 4.
The present invention is not limited to the above embodiments, and those skilled in the art can understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (2)
1. The utility model provides a high accuracy ray apparatus refraction and reflection mechanism, is including referring to arm optic fibre, collimating mirror, first pyramid prism, second pyramid prism and speculum, and optic fibre becomes collimated light after the collimation of collimation lens from referring to arm optic fibre outgoing, collimated light arrives the speculum after getting into first pyramid prism and second pyramid prism in proper order, then returns to get into and refer to arm optic fibre, its characterized in that: the reflection reducing coating is plated on the projection surface of the first pyramid prism, the reflection reducing coating is plated on the upper half portion of the projection surface of the second pyramid prism, the polishing surface is arranged on the lower half portion of the projection surface of the second pyramid prism, the internal reflection coating is plated on one side of the reflector, the polishing surface is arranged on the other side of the reflector, and the polishing surface of the reflector and the polishing surface of the second pyramid prism are fixedly connected together after being in butt joint.
2. The high-precision optical machine refraction and reflection mechanism according to claim 1, wherein: and the polished surface of the reflector is glued with the polished surface of the second pyramid prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023173613.5U CN213748262U (en) | 2020-12-25 | 2020-12-25 | High-precision folding and reversing mechanism of optical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023173613.5U CN213748262U (en) | 2020-12-25 | 2020-12-25 | High-precision folding and reversing mechanism of optical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213748262U true CN213748262U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023173613.5U Active CN213748262U (en) | 2020-12-25 | 2020-12-25 | High-precision folding and reversing mechanism of optical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213748262U (en) |
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2020
- 2020-12-25 CN CN202023173613.5U patent/CN213748262U/en active Active
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