CN-121978813-A - Angle-adjustable optical transmission device

CN121978813ACN 121978813 ACN121978813 ACN 121978813ACN-121978813-A

Abstract

The invention discloses an angle-adjustable optical transmission device which comprises a shell, an upper optical path pipeline, a spherical angle adjusting piece, a lower optical path pipeline and a fastening piece, wherein one end of the upper optical path pipeline is arranged in the spherical angle adjusting piece, the other end of the upper optical path pipeline extends to the outer side of the spherical angle adjusting piece, the fastening piece comprises an upper portion and a lower portion, the upper portion is used for at least partially bearing the spherical angle adjusting piece to form a first optical path channel, the lower portion is used for connecting the lower optical path pipeline to form a second optical path channel, the spherical angle adjusting piece can rotate relative to the fastening piece to adjust the angle of the first optical path channel relative to the second optical path channel, and the shell is used for locking the fastening piece and the spherical angle adjusting piece. The optical transmission device provided by the invention not only can adapt to the angle adjustment requirement of optical path transmission, but also can adjust the angle of the optical path channel in a narrow or shape-limited installation environment without additional elbow or foldback space, thereby improving the space adaptability.

Inventors

HE SONGPING
HUAN QING
YU XIAODONG
MA RUISONG
HUANG YUANZHI

Assignees

中国科学院物理研究所

Dates

Publication Date: 20260505
Application Date: 20260123

Claims (10)

1. The angle-adjustable optical transmission device is characterized by comprising a shell, an upper optical path pipeline, a spherical angle adjusting piece, a lower optical path pipeline and a fastener, wherein: One end of the upper light path pipeline is arranged in the spherical angle adjusting piece, and the other end of the upper light path pipeline extends to the outer side of the spherical angle adjusting piece; The fastener includes an upper portion configured to at least partially carry the spherical angle adjuster to form a first optical path and a lower portion configured to connect the lower optical path to form a second optical path; The spherical angle adjuster is rotatable relative to the fastener to adjust the angle of the first optical path channel relative to the second optical path channel; the housing is configured to lock the fastener and the spherical angle adjuster.
2. The optical transmission device of claim 1, wherein the fastener is threadably coupled to the housing interior.
3. The optical transmission device according to claim 1, wherein the spherical angle adjusting member is provided with an internal threaded through hole, the outer peripheral surface of the upper optical path pipe is provided with a threaded section, and the upper optical path pipe is connected into the spherical angle adjusting member by screwing the threaded section and the internal threaded through hole.
4. The optical transmission device according to claim 1, wherein a first pressing member is provided between the spherical angle adjusting member and the fastener and the housing, one side of the first pressing member is attached to the spherical surface of the spherical angle adjusting member, and the other side of the first pressing member is respectively abutted to the fastener and the housing.
5. The optical transmission device according to claim 1, wherein a second pressing member is provided between the spherical angle adjusting member and the housing, one side of the second pressing member is attached to the spherical surface of the spherical angle adjusting member, and the other side is abutted to the housing.
6. The optical transmission device of claim 1, wherein the lower optical conduit is threadably connected to the fastener to secure the lower optical conduit and form the second optical path channel.
7. The optical transmission device according to claim 1, wherein the surface gloss of the inner wall of the upper optical path pipe, the inner wall of the fastener, and the inner wall of the lower optical path pipe is 70 to 90GU, and the roughness Ra is 0.1 μm or less.
8. The optical transmission device of claim 1, wherein the upper optical conduit is adjusted at an angle of ±30° relative to the fastener.
9. The optical transmission device of claim 1, further comprising an optical path support fixture comprising a base and a cylinder integrally connected to the base, the cylinder having a central through hole extending axially therethrough, and a sidewall of the cylinder being provided with an axially extending slot.
10. The optical transmission device according to claim 9, wherein the lower optical path tube is disposed in the central through hole, and a clip is disposed outside the cylinder and tightened to fix the lower optical path tube.

Description

Angle-adjustable optical transmission device Technical Field The invention belongs to the field of optical signal acquisition and transmission, and particularly relates to an angle-adjustable optical transmission device. Background The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art to aid in the understanding of the present disclosure. Where there is no evidence that related information has been disclosed prior to the filing date of the present application, the related information should not be considered prior art. In the field of optical signal acquisition and transmission, stable conduction and flexible layout of optical paths are key for improving the adaptability of a system and the quality of signals. At present, besides the optical fiber transmission scheme with high cost and severe requirements on the installation environment, most scenes adopt a sealed optical channel to collect and transmit optical signals, wherein pipeline transmission is the mainstream choice due to simple structure and controllable cost. However, the traditional pipeline type optical path transmission scheme has the obvious technical defects that firstly, the inner wall of a pipeline is usually only subjected to basic processing, the surface smoothness is insufficient, the inner wall is extremely easy to diffuse reflection in the transmission process of an optical signal, so that a large amount of optical energy is lost, the transmission intensity and the signal to noise ratio of the optical signal are seriously reduced, the scene requirements of high-precision optical detection, signal acquisition in a vacuum environment and the like on high optical transmission efficiency are difficult to meet, secondly, the traditional optical path pipeline is of a rigid structure with a fixed angle, the transmission angle is completely limited, the trend of an optical path cannot be flexibly adjusted according to actual working conditions, and a plurality of elbow switching pieces are additionally arranged in a narrow installation space, a special-shaped cavity or a complex optical path system needing to bypass obstacles, so that the assembly complexity and the light leakage risk of the system are increased, the multi-stage loss of the optical signal is further increased, and the stability and the integration level of the whole optical path are greatly reduced. In addition, in special fields such as ultra-high vacuum optical detection, film deposition monitoring, the material of conventional optical path pipeline does not possess vacuum compatibility, and easy release gas destroys the vacuum environment in the use, and the optical path flange angle adjustment demand in the inside limited space of vacuum cavity also can't be adapted to its fixed angle's design simultaneously, is difficult to satisfy the accurate optical signal acquisition requirement of this kind of high-end equipment. In summary, the existing pipeline optical path transmission scheme has the defects of low-loss transmission, flexible angle adjustment and special working condition suitability, and becomes a key bottleneck for restricting the development of the optical acquisition system to high precision, high integration and multiple scenes. Disclosure of Invention Therefore, the invention aims to overcome the defects in the prior art and provide an angle-adjustable optical transmission device, and the invention aims to be realized by the following technical scheme: An angle-adjustable optical transmission device comprises a shell, an upper optical path pipeline, a spherical angle adjusting piece, a lower optical path pipeline and a fastening piece, wherein one end of the upper optical path pipeline is arranged in the spherical angle adjusting piece, the other end of the upper optical path pipeline extends to the outer side of the spherical angle adjusting piece, the fastening piece comprises an upper portion and a lower portion, the upper portion is used for at least partially bearing the spherical angle adjusting piece to form a first optical path channel, the lower portion is used for connecting the lower optical path pipeline to form a second optical path channel, the spherical angle adjusting piece can rotate relative to the fastening piece to adjust the angle of the first optical path channel relative to the second optical path channel, and the shell is used for locking the fastening piece and the spherical angle adjusting piece. In some embodiments, the fastener is threadably connected to the housing interior. In some embodiments, the spherical angle adjusting member is provided with an internal threaded through hole, the outer peripheral surface of the upper optical path pipe is provided with a threaded section, and the upper optical path pipe is connected into the spherical angle adjusting member through screwing of the threaded section and the internal threaded through