Testing tool for light transmitting bundle
By designing a beam guide testing tool including a light source module assembly and a clamping assembly, the problems of low stability and inaccurate beam illuminance detection results are solved, and higher detection accuracy and applicability are achieved.
Patent Information
- Application Number
- CN202421564187.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-04
AI Technical Summary
In the prior art, the detection results of light guide beam illuminance are low and the detection results are inaccurate, which are mainly due to the unfixed position of the light guide beam and the different light source exit angle.
A test tool for light guide light is designed, including light source module assembly and clamping assembly. The light source module assembly fixes the exit angle of the light source by focusing the optical group, and the clamping assembly fixes the position of the light guide beam through the clamping port and the pressing member, so that the relative position between the light source and the light guide beam is fixed.
By fixing the relative position of the light source and the light guide beam, the stability and accuracy of illuminance detection are improved, and the uncertainty of the detection results are avoided. At the same time, the designed test tooling is suitable for testing multi-special light guide beams, which is easy to operate and intuitive to effect.
Smart Images
Figure CN222812553U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of light guide beam detection, in particular to a testing tool for light guide beams. Background Art
[0002] A fiber optic endoscope is a medical device that uses a light guide composed of multiple groups of optical fibers for light guidance and illumination. Its optical performance will directly or indirectly affect the safety of the patient. Therefore, it is very necessary to accurately measure the optical performance indicators of the endoscope. Among them, illumination is an important optical performance indicator. It is expressed by the luminous flux received per unit area, reflecting the degree to which the object is illuminated, mainly the uniformity of illumination. If the illumination cannot fill the field of view, the periphery will be blurred, thus affecting the field of view.
[0003] In the current development and production of fiber optic endoscopes, the illumination test is implemented by first installing the light guide to the insertion part of the endoscope, then using a cold light source device as the light source, and using an illuminance meter to detect the illumination from the insertion port. The detection operation is relatively cumbersome; and there are problems of low stability and inaccurate detection results, which can be specifically manifested in that the position of the light guide installed inside the insertion part is not fixed, mainly because the position of the end face of the light guide relative to the light source and the illuminated surface of the illuminance meter is not fixed, which leads to the non-fixed amount of light received by the illuminated surface of the illuminance meter, and ultimately causes the problem of low stability and inaccurate detection results.
[0004] Therefore, it is of practical value to study a light guide test fixture with stable and accurate illumination detection results. Utility Model Content
[0005] The utility model aims to provide a testing tool for a light guide beam, so as to solve the problems of low stability and inaccurate detection results of illumination in the prior art.
[0006] In order to solve the above technical problems, the utility model provides a test fixture for a light guide beam, comprising: a light source module assembly, the light source module assembly comprising a light source part and a focusing optical group, the focusing optical group being arranged on the emergent light path of the light source part, the focusing optical group being used to converge the light source of the light source part on a fixed emergent angle; a clamping assembly, the clamping assembly forming a clamping space, the penetration direction of the clamping space being toward the light source module assembly, the clamping center of the clamping space being arranged at a preset fixed point on the emergent light path of the light source part, the light source module assembly with the focusing optical group can fix the emergent angle of the light source part, and the clamping assembly can clamp and fix the light guide beam, so that the emergent angle of the light source and the position of the light guide beam are both fixed, and when the detection is repeated, the stability and accuracy of the detection result can be guaranteed.
[0007] In one of the embodiments, the focusing optical group includes a sleeve, a coupling lens and a light guide cone; the coupling lens and the light guide cone are arranged in the sleeve, and both ends of the sleeve are connected; along the output light path of the light source component, the coupling lens and the light guide cone are arranged in sequence; the light source component, the coupling lens and the light guide cone are arranged coaxially, and after being provided with the coupling lens and the light guide cone, the output light angle of the light source component can be fixed, thereby avoiding the problem of inaccurate detection caused by different output angles of the light source.
[0008] In one embodiment, two ends of the light guide cone are respectively a wide end face and a narrow end face, the wide end face is arranged adjacent to the coupling lens, the narrow end face is arranged away from the coupling lens, and the wide end face is arranged at the focusing point of the coupling lens.
[0009] In one of the embodiments, the preset fixed point is the position where the light guide beam is subjected to the maximum illumination of the emitted light of the light source component. When the light guide beam is at the position of maximum illumination, the accuracy of the test can be guaranteed.
[0010] In one of the embodiments, the clamping assembly is provided with a clamping port and a clamping member that can be approached or moved away from the clamping port, the clamping member is provided with a clamping head, the clamping head is lockably arranged on the clamping port, and the clamping space is formed between the clamping port and the clamping head.
[0011] In one embodiment, the test fixture is provided with a mounting base; the light source module assembly and the clamping assembly are provided on the mounting base; the aperture of the clamping opening is linearly narrowed along the direction adjacent to the mounting base, and the linearly narrowed clamping opening is designed to adapt to light guides of different specifications, thereby enabling testing of light guides of multiple specifications.
[0012] In one of the embodiments, the clamping end face of the clamping head is provided with a buffer portion, and the buffer portion can produce a slight deformation after being subjected to force. The setting of the buffer portion can prevent the light guide beam from being damaged / deformed during the clamping process, can better clamp the light guide beam, and can adapt to light guide beams of different specifications.
[0013] In one embodiment, the clamping member also includes a first connecting rod, a second connecting rod, a third connecting rod and a clamping seat body; one end of the first connecting rod is rotatably connected to the clamping seat body, and the other end of the first connecting rod is installed with the clamping head; the second connecting rod is rotatably connected to the clamping seat body; one end of the third connecting rod is rotatably connected to the first connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod; the rotation of the second connecting rod is used to put the clamping head in a locked state or an unlocked state, and the quick-clamp-like design that rotates to the dead point can ensure that the clamping head can clamp the guide light beam in the clamping opening.
[0014] In one embodiment, the test fixture also includes a moving component; the clamping component is fixed on the moving component, and the moving component is used to move the clamping space in three axes. The moving component with three-axis movement can ensure that the light guide beam in the clamping space is moved to a preset fixed point with maximum illumination even if light guide beams of different specifications are replaced, thereby ensuring the effectiveness of the test.
[0015] The more prominent beneficial effects of the utility model are as follows:
[0016] 1. Since the present solution is provided with a focusing optical group, the focusing optical group is arranged on the output light path of the light source component, after the light source component emits light, the light source of the light source component is converged and emitted at a fixed output angle, and since the present solution is provided with a clamping component, the clamping component is provided with a clamping port, and a clamping member that can be close to or away from the clamping port, the clamping member is provided with a clamping head, and the clamping head is arranged on the clamping port in a lockable manner, a clamping space is formed between the clamping port and the clamping head, and a clamping center of the clamping space is arranged at a preset fixed point on the output light path of the light source component, so when it is applied, the light guide beam and the light source will be tested in a relatively fixed position relationship, avoiding the problem of non-fixed assembly position of the light guide beam in the prior art.
[0017] Second, since the clamping assembly provided in this solution has a clamping opening whose diameter is linearly narrowed in the direction adjacent to the mounting base, and is equipped with a clamping end face with a buffer portion, and a moving assembly is provided to realize three-axis movement of the clamping space, it is possible to realize the testing of light guide beams of various specifications.
[0018] 3. Since this solution uses tooling to replace the original technical solution, it can realize the illumination test of the light guide beam separately and optimize the test process; it is suitable for testing light guide beams of multiple specifications; the test operation is convenient and the test effect is intuitive.
[0019] To sum up, this solution avoids the situation where the position of the light guide beam is not fixed and the emission angles of the light source are different by fixing the output light angle of the light source, the position of the light guide beam, and the relative position between the light source and the light guide beam, thereby effectively solving the problems of low stability and inaccurate detection results of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 This is a schematic diagram of the overall structure provided by the preferred embodiment of the utility model Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the overall structure provided by the preferred embodiment of the utility model Figure 2 ;
[0023] Figure 3 It is a cross-sectional schematic diagram of a light source module assembly provided in a preferred embodiment of the utility model;
[0024] Figure 4 It is a partial cross-sectional schematic diagram of a clamping assembly provided in a preferred embodiment of the utility model.
[0025] The reference numerals are as follows:
[0026] 1. Light source module assembly; 10. Light source component; 11. Focusing optical group; 110. Sleeve; 111. Coupling lens; 112. Light guide cone; 2. Clamping assembly; 20. Test concave block; 200. Clamping port; 21. Pressing member; 210. First connecting rod; 211. Second connecting rod; 212. Third connecting rod; 213. Pressing seat; 214. Pressing head; 3. Moving assembly; 4. Mounting base; 5. Light guide beam. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0028] In order to solve the above problems, this solution proposes a test fixture for light guide, please refer to Figures 1 to 4 , including a light source module assembly 1 and a clamping assembly 2, the light source module assembly 1 including a light source 10 and a focusing optical group 11, the focusing optical group 11 is arranged on the exit light path of the light source 10, and the focusing optical group 11 is used to converge the light source of the light source 10 at a fixed exit angle; the clamping assembly 2 is provided with a clamping port 200, and a clamping member 21 that can approach or move away from the clamping port 200, the clamping member 21 is provided with a clamping head 214, the clamping head 214 is arranged on the clamping port 200 in a lockable manner, and a clamping space is formed between the clamping port 200 and the clamping head 214, and the clamping The penetration direction of the space is toward the light source module assembly 1, and the clamping center of the clamping space is set at a preset fixed point on the output light path of the light source component 10. When in use, the light guide beam 5 is set on the clamping port 200, and then the clamping head 214 is locked on the clamping port 200 through the foldable clamping member 21, thereby achieving the fixation of the light guide beam 5. Since the light guide beam is fixed at the preset fixed point of the output light path, the light source component 10 is started, the light source will shine on one end of the light guide beam 5, and the illuminance is detected by using an illuminance meter at the other end of the light guide beam 5, thereby completing the detection of the light guide beam 5.
[0029] After adopting this setting method, the present scheme can achieve the purpose of testing the illumination of the guide light beam separately before the guide light beam is installed inside the light guide hose and the insertion tube, and the present device has the following advantages: the focusing optical group 11 fixes the angle of the output light source of the light source component 10, the clamping mouth 200 and the clamping head 214 fix the guide light beam, and after the clamping center of the clamping space is set at a preset fixed point on the output light path of the light source component 10, it can ensure that the output light path of the light source component 10 and the guide light beam are in a fixed position, avoiding the problem of different light transmitted to the guide light beam during repeated tests, and effectively improving the stability of the test results and the accuracy of the test results.
[0030] like Figure 1 and Figure 2 As shown, the test fixture of the light guide beam also includes a moving component 3, on which a clamping component 2 is fixed. The moving component 3 is used to move the clamping space in three axes. After adopting this setting, the light guide beam can be moved to a preset fixed point through the moving component 3.
[0031] Specifically, Figure 1 and Figure 2 As shown, the moving assembly 3 includes a lateral moving group for lateral movement, a longitudinal moving group for longitudinal movement and a vertical moving group for vertical movement. It should be understood that there are various ways of moving the group, including but not limited to linear movement methods such as screw movement, slider movement, and cylinder movement. Technical personnel in this field can choose according to actual needs.
[0032] Exemplarily, the transverse moving group is mounted on the longitudinal moving group, the longitudinal moving group is mounted on the vertical moving group, and the clamping assembly 2 is mounted on the vertical moving group.
[0033] like Figure 1 and Figure 2 As shown, the light guide light testing tool further includes a mounting base 4 , on which the light source module assembly 1 , the moving assembly 3 and the clamping assembly 2 are arranged.
[0034] Regarding the light source module component 1, Figure 3 As shown, the light source module assembly 1 can simulate the light source that provides the cold light source working state of the endoscope. The light source module assembly 1 includes a light source component 10 and a focusing optical group 11. The light source component 10 and the focusing optical group 11 are both fixed to the mounting base 4 of the test fixture through a frame.
[0035] For the above-mentioned light source 10, if Figure 3 As shown, the light source 10 is fixed on the mounting base 4 of the test fixture through a frame, and the emitted light of the light source 10 is aligned with the focusing optical group 11 .
[0036] Exemplarily, the light source 10 is an LED light source.
[0037] For the above-mentioned focusing optical group 11, if Figure 3 As shown, the focusing optical group 11 is fixed on the mounting base 4 of the test fixture through a frame, and the focusing optical group 11 includes a sleeve 110, a coupling lens 111 and a light guide cone 112; the sleeve 110 is provided with a coupling lens 111 and a light guide cone 112, and both ends of the sleeve 110 are through; along the output light path of the light source 10, the coupling lens 111 and the light guide cone 112 are arranged in sequence; the light source 10, the coupling lens 111 and the light guide cone 112 are coaxially arranged. After adopting this arrangement, the light path emitted by the light source 10 is aggregated through the coupling lens 111 and the light guide cone 112, so that the output light angle of the light source 10 is fixed while simulating a cold light source.
[0038] The light guide cone 112, such as Figure 3 As shown, the two ends of the light guide cone 112 are respectively a wide end face and a narrow end face. Figure 3 The left side end face, narrow section face Figure 3 On the right side, the wide end face is arranged adjacent to the coupling lens 111, the narrow end face is arranged away from the coupling lens 111, and the wide end face is arranged at the focusing point of the coupling lens 111. After adopting this arrangement, the taper of the light guide column can further focus light, and the light guide cone 112 can further converge the light emitted from the coupling lens 111.
[0039] The above-mentioned light guide is fixed at a preset fixed point of the outgoing light path. The preset fixed point is the point where the light guide is subject to the maximum illumination of the outgoing light of the light source 10. After adopting this setting method, after the light guide moves to the point of maximum illumination, the illumination test of the light guide is more accurate.
[0040] It should be noted that regarding the acquisition of maximum illumination: the same type of light guide beam needs to be adjusted and tested multiple times during the first test. When the maximum illumination is found, the position of the three-axis displacement platform is recorded. Subsequent replacement of the same light guide beam for testing can be directly installed according to the recorded position. When replacing a different type of light guide beam, the above operations need to be repeated to obtain the preset position.
[0041] Regarding the clamping assembly 2, Figure 2 As shown, the clamping assembly 2 includes a test concave block 20 and a pressing member 21 , and the test concave block 20 and the pressing member 21 are installed on a mounting base 4 of the test fixture through a moving assembly 3 .
[0042] For the above-mentioned test concave block 20, if Figure 2 and Figure 4 As shown, the test concave block 20 is fixed on the moving assembly 3, and a clamping opening 200 is provided on the test concave block 20. The clamping opening 200 faces upward (i.e., away from the mounting base 4), and the diameter of the clamping opening 200 is linearly narrowed along the direction adjacent to the mounting base 4, i.e., from the section Figure 4From the top, the clamping opening 200 is arranged in a V-shape. After adopting this arrangement, the linearly narrowed clamping opening 200 is designed to adapt to light guides of different specifications, and can realize the testing of light guides of multiple specifications.
[0043] For the above-mentioned pressing member 21, Figure 2 As shown, the clamping member 21 can be locked on the test concave block 20, and the clamping member 21 includes a first connecting rod 210, a second connecting rod 211, a third connecting rod 212, a clamping seat body 213 and a clamping head 214. The clamping seat body 213 is fixed on the test concave block 20, one end of the first connecting rod 210 is rotatably connected to the clamping seat body 213, and the other end of the first connecting rod 210 is installed with the clamping head 214; the second connecting rod 211 is rotatably connected to the clamping seat body 213; one end of the third connecting rod 212 is rotatably connected to the first connecting rod 210, and the other end of the third connecting rod 212 is rotatably connected to the second connecting rod 211; the second connecting rod 211 is rotatably connected to the clamping seat body 213; one end of the third connecting rod 212 is rotatably connected to the first connecting rod 210, and the other end of the third connecting rod 212 is rotatably connected to the second connecting rod 211; The rotation of the connecting rod 211 is used to put the clamping head 214 in a locked state or an unlocked state. After adopting this setting, when the user flips the second connecting rod 211 away from the clamping head 214, the first connecting rod 210 is unlocked, driving the clamping head 214 to unlock and move away from the clamping mouth 200. When the user flips the second connecting rod 211 to a vertical position in the direction of the clamping head 214, the first connecting rod 210 is in a dead point locking state, and the clamping head 214 is locked above the clamping mouth 200. After the light guide beam is loaded into the clamping mouth 200, the clamping head 214 can clamp the light guide beam in the clamping mouth 200.
[0044] The above-mentioned clamping head 214 has a buffer portion on its clamping end face, and the buffer portion can produce a little deformation after being subjected to force. After adopting this setting method, the light guide beam can be prevented from being damaged / deformed during the clamping process, the light guide beam can be better clamped, and it can adapt to light guide beams of different specifications and sizes.
[0045] In order to make the clamping head 214 further adapt to the needs of light guides of different specifications, the clamping head 214 is installed into the end of the first connecting rod 210 in a threaded connection manner, and the relative fixed position of the clamping head 214 and the first connecting rod 210 can be adjusted by a threaded nut to adapt to the needs of light guides of different specifications.
[0046] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.
Claims
1. A test fixture for a light guide, characterized in that: include: A light source module assembly, the light source module assembly comprising a light source component and a focusing optical group, the focusing optical group being arranged on an outgoing light path of the light source component, and the focusing optical group being used to converge the light source of the light source component at a fixed outgoing angle; A clamping assembly is formed with a clamping space, the penetration direction of the clamping space is toward the light source module assembly, and the clamping center of the clamping space is set at a preset fixed point on the outgoing light path of the light source component.
2. The test tool according to claim 1, characterized in that: The focusing optical group includes a sleeve, a coupling lens and a light guide cone; The coupling lens and the light guide cone are arranged in the sleeve, and both ends of the sleeve are connected; Along the outgoing light path of the light source component, the coupling lens and the light guide cone are arranged in sequence, and the light source component, the coupling lens and the light guide cone are arranged coaxially.
3. The test tool according to claim 2, characterized in that: The two ends of the light guide cone are respectively a wide end face and a narrow end face, the wide end face is arranged adjacent to the coupling lens, the narrow end face is arranged away from the coupling lens, and the wide end face is arranged on the focusing point of the coupling lens.
4. The test tool according to claim 1, characterized in that: The preset fixed point is the location where the light guide beam is illuminated by the maximum illumination of the emitted light of the light source.
5. The test tool according to claim 1, characterized in that: The clamping assembly is provided with a clamping opening and a clamping member that can approach or move away from the clamping opening. The clamping member is provided with a clamping head, which is arranged on the clamping opening in a lockable manner. The clamping space is formed between the clamping opening and the clamping head.
6. The test tool according to claim 5, characterized in that: The test fixture is provided with a mounting base; The light source module assembly and the clamping assembly are arranged on the mounting base; The diameter of the clamping opening is linearly narrowed along a direction adjacent to the mounting base.
7. The test tool according to claim 5, characterized in that: The pressing end surface of the pressing head is provided with a buffer portion, and the buffer portion is used to generate deformation after being subjected to force.
8. The test fixture according to claim 5, characterized in that: The pressing member also includes a first connecting rod, a second connecting rod, a third connecting rod and a pressing seat body; One end of the first connecting rod is rotatably connected to the pressing seat body, and the other end of the first connecting rod is mounted with the pressing head; The second connecting rod is rotatably connected to the pressing seat body; One end of the third connecting rod is rotatably connected to the first connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod; The rotation of the second connecting rod is used to put the pressing head into a locked state or an unlocked state.
9. The test tool according to claim 1, characterized in that: The test fixture also includes a moving component; The clamping assembly is fixed on the moving assembly, and the moving assembly is used to move the clamping space in three axes.