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CN-224216927-U - Detachable infrared optical filter module

CN224216927UCN 224216927 UCN224216927 UCN 224216927UCN-224216927-U

Abstract

The utility model discloses a detachable infrared optical filtering module, and relates to the field of optical components. The detachable infrared optical filtering module comprises a mounting ring, wherein one side of the mounting ring is fixedly connected with a threaded ring, an infrared optical filter is arranged in the mounting ring, one side, close to the threaded ring, of the mounting ring is provided with a ring-shaped bulge, the detachable infrared optical filtering module further comprises a shell, the shell is fixedly connected to the mounting ring at equal intervals, the mounting ring is provided with an embedded groove matched with the shell, the infrared optical filter is effectively prevented from shifting and loosening when optical equipment works, the infrared optical filter is always in a precise working position, the stability and the accuracy of filtering of infrared optical signals are ensured, the quality of imaging or detection results are improved, compared with the traditional fixing mode, the time for maintaining and replacing the optical filter is greatly shortened, the operation difficulty is reduced, the flexible adjustment of a user according to different scenes is facilitated, and the integral use efficiency and the suitability of the module are improved.

Inventors

  • LIU WEI
  • XU XIANFU
  • XU YUN

Assignees

  • 上海双祥光学科技有限公司

Dates

Publication Date
20260508
Application Date
20250718

Claims (6)

  1. 1. Detachable infrared optics light filtering module, a serial communication port, including collar (1), one side fixedly connected with screwed ring (101) of collar (1), be provided with infrared light filter (2) in collar (1), one side that is close to screwed ring (101) inside collar (1) is provided with round annular protruding (102), still includes: The shell (4) is fixedly connected to the mounting ring (1) at equal intervals in circumference, and an embedded groove matched with the shell (4) for use is formed in the mounting ring (1); The T-shaped sliding rod (401) is connected in the shell (4) in a sealing sliding way; The triangular limiting blocks (5) are circumferentially distributed on the inner side of the mounting ring (1) at equal intervals, and one ends of the T-shaped sliding rods (401) extending out of the shell (4) are fixedly connected with the adjacent triangular limiting blocks (5) respectively; The tensioning spring (402) is arranged in the shell (4), and two ends of the tensioning spring are fixedly connected with the shell (4) and the T-shaped sliding rod (401) respectively; The pneumatic assembly is used for controlling the triangular limiting block (5) to retract into the embedded groove and is arranged on the mounting ring (1).
  2. 2. The detachable infrared optical filtering module according to claim 1, wherein the pneumatic assembly comprises a communicating pipe (403) and an arc-shaped air bag (404) filled with saturated gas, a plurality of the shells (4) are mutually communicated through the communicating pipe (403), the arc-shaped air bag (404) is fixedly connected to the shells (4), and the arc-shaped air bag (404) is communicated with the adjacent shells (4) through a gas pipe (405).
  3. 3. The detachable infrared optical filter module according to claim 1, characterized in that the number of the housing (4) and the triangular limiting block (5) is at least 3.
  4. 4. The detachable infrared optical filter module according to claim 1, wherein a sealing ring (3) is fixedly connected to one side of the annular protrusion (102) near the near infrared filter (2).
  5. 5. The detachable infrared optical filtering module according to claim 4, wherein the sealing ring (3) is an annular air bag filled with saturated gas, and a protective rubber pad (501) is fixedly connected to one side of the triangular limiting block (5) close to the near infrared filter (2).
  6. 6. The detachable infrared optical filter module according to claim 5, wherein the sealing ring (3) and the protective rubber pad (501) are both silicon rubber sheets.

Description

Detachable infrared optical filter module Technical Field The utility model belongs to the technical field of optical components, and particularly relates to a detachable infrared optical filtering module. Background In optical imaging, spectrum analysis, security and protection monitoring and other devices, an infrared optical filter is a core component for realizing light filtration of a specific wave band, a traditional filter is usually fixed in the device in a gluing, threaded compression ring or bolt fastening mode and the like, so that a structure which is not detachable or difficult to detach is formed, for example, part of the filter device is directly bonded with a mounting seat by smearing epoxy resin glue on the edge of the filter, or a plurality of groups of screws are used for compressing the filter in a circumferential direction from the outer side so as to ensure the stability of the filter in a light path. However, such fixing manner is easily affected by dust pollution, optical film aging and the like after the optical filter is used for a long time, and needs to be cleaned or replaced regularly, but the disassembly process is complicated and even the optical filter can be damaged due to the adhesive or multi-screw fastening structure, and when the optical filters with different cut-off wavelengths need to be replaced in different application scenes (such as day-night switching of security monitoring and band adjustment of a spectrometer), the traditional structure is difficult to be quickly adapted, and needs to be replaced integrally or time-consuming operation by means of professional tools. Disclosure of utility model The present utility model is directed to overcoming the deficiencies of the prior art and providing a removable infrared optical filter module that overcomes or at least partially solves the above-mentioned problems. The detachable infrared optical filtering module comprises a mounting ring, wherein one side of the mounting ring is fixedly connected with a threaded ring, an infrared optical filter is arranged in the mounting ring, one side, close to the threaded ring, of the mounting ring is provided with a ring-shaped bulge, the detachable infrared optical filtering module further comprises a shell, a T-shaped sliding rod, triangular limiting blocks, tensioning springs and pneumatic components, wherein the shell is fixedly connected with the T-shaped sliding rod, the embedded grooves are formed in the mounting ring at equal intervals in circumference, the T-shaped sliding rod is connected in the shell in a sealing sliding mode, the triangular limiting blocks are distributed on the inner side of the mounting ring at equal intervals in circumference, one ends, extending out of the shell, of the T-shaped sliding rod are respectively fixedly connected with the adjacent triangular limiting blocks, and the pneumatic components are used for controlling the triangular limiting blocks to retract into the embedded grooves and are mounted on the mounting ring. Further, the pneumatic assembly comprises a communicating pipe and an arc-shaped air bag filled with saturated gas, the plurality of shells are communicated with each other through the communicating pipe, the arc-shaped air bag is fixedly connected to the shells, and the arc-shaped air bag is communicated with the adjacent shells through a gas pipe. In order to guarantee the limiting effect on the infrared filter conveniently, the number of the shell and the triangular limiting blocks is at least 3. In order to be convenient for block vapor dust, furthermore, the annular bulge is close to the side fixedly connected with sealing washer of near infrared light filter. In order to further improve the sealing effect and the buffering effect, further, the sealing ring is an annular air bag filled with saturated gas, and a protective rubber pad is fixedly connected to one side of the triangular limiting block, which is close to the near infrared filter. In order to ensure the sealing effect and the service life of the sealing ring and the protective rubber pad, the sealing ring and the protective rubber pad are both silicon rubber sheets. By adopting the technical scheme, the infrared filter has the advantages that the infrared filter can be uniformly applied with force from the circumferential direction through the cooperation of the pneumatic component and the mechanical structure (the T-shaped sliding rod, the triangular limiting block and the tensioning spring), the infrared filter is firmly fixed, the annular protrusion is combined for limiting, the infrared filter is effectively prevented from being shifted and loosened when the optical equipment works (such as expansion and contraction caused by vibration and temperature change of the equipment), the infrared filter is ensured to be always in a precise working position, the filtering stability and accuracy of infrared optical signals are ensured, and the imaging or detection