Lens light transmittance distribution scanning compensation system

Abstract

The utility model relates to the technical field of optical lens testing equipment, in particular to a lens light transmittance distribution scanning compensation system, which comprises a base and an integrating sphere assembly arranged on the base, a light source assembly is connected to the upper portion of the base through a support and located above the integrating sphere assembly. Wherein a frame is fixedly installed above the integrating sphere assembly, a first frame is arranged on the inner side of the frame in a moving mode in the first direction, and a second frame is arranged on the inner side of the first frame in a moving mode in the second direction. When the to-be-detected lens is placed on the bearing frame, the plane position of the lens can be adjusted, so that the position of the to-be-detected lens is subjected to compensation adjustment in the actual detection process, and meanwhile, multi-position sampling test is performed, so that the accuracy of light transmittance detection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of optical lens testing equipment technology, and in particular to a lens transmittance distribution scanning compensation system. Background Technology

[0002] Optical lenses play a crucial role in many fields, such as eyeglasses, cameras, microscopes, and telescopes. Light transmittance is a key parameter for evaluating the quality of optical lenses, as it directly affects the lens's image quality and optical performance.

[0003] Traditional transmittance testing methods typically rely on a fixed-position testing instrument. These devices emit light through a light source, which then passes through the lens under test and enters an integrating sphere. The light signal is then analyzed by a spectrometer to obtain the transmittance value, such as the full-spectrum transmittance tester disclosed in Chinese Patent Publication No. CN216208558U.

[0004] However, traditional testing instruments can usually only perform single-point testing on lenses and cannot compensate for the position of the lens under test. If multi-point sampling is to be achieved, the position of the lens needs to be manually moved for compensation, which is inefficient and prone to introducing human error.

[0005] Based on this, in order to improve the accuracy of lens detection, we propose a lens transmittance distribution scanning compensation system. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to perform single-point testing and the inability to compensate for the position of the lens under test, and to propose a lens transmittance distribution scanning compensation system.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Design a lens transmittance distribution scanning compensation system, including:

[0009] The base and the integrating sphere assembly mounted on the base;

[0010] A light source assembly is connected to the base via a bracket, and the light source assembly is located above the integrating sphere assembly;

[0011] The integrating sphere assembly has a frame fixedly mounted on its upper part, a first frame that moves along a first direction on the inner side of the frame, a second frame that moves along a second direction on the inner side of the first frame, and a carrier frame that is detachably connected to the inner side of the second frame. The carrier frame has a through hole opposite to the light inlet of the integrating sphere assembly.

[0012] Furthermore, a first screw is threadedly connected to the side of the frame, and one end of the first screw is rotatably connected to the first frame;

[0013] A slot is also provided on the side of the frame, in which a second screw is placed. The second screw is threadedly connected to the first frame and its end is rotatably connected to the second frame.

[0014] Furthermore, a first spring is fixedly installed on the inner side of the first frame and the frame, and a second spring is fixedly installed on the inner side of the second frame and the first frame.

[0015] Furthermore, the second frame has a stepped opening in the middle, and the support frame is placed in the stepped opening, wherein a snap-fit ​​component is provided between the stepped opening and the support frame.

[0016] Furthermore, the snap-fit ​​assembly includes two guide rods fixedly installed in the stepped opening, with the top end of the guide rod passing through the upper part of the support frame, and a positioning glass bead embedded on the outside of the guide rod, the telescopic end of the positioning glass bead stopping on the upper side of the support frame.

[0017] Furthermore, a spring telescopic rod assembly is fixedly installed on the inner side of the stepped opening, and the bottom of the bearing frame has an avoidance opening to avoid the spring telescopic rod assembly.

[0018] The beneficial effects of the lens transmittance distribution scanning compensation system proposed in this utility model are as follows: the movable first frame and second frame designed in this utility model are used to control the movement of the carrier frame in the plane. When the lens to be tested is placed on the carrier frame, the plane position of the lens can be adjusted to compensate for the position of the lens to be tested during the actual testing process. At the same time, multi-position sampling test is carried out to ensure the accuracy of transmittance detection. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the second frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model.

[0023] In the diagram: 1. Base; 2. Integrating sphere assembly; 3. Light source assembly; 4. Frame; 41. Slot; 5. First frame; 51. First screw; 52. First spring; 6. Second frame; 61. Second screw; 62. Second spring; 63. Step opening; 64. Spring telescopic rod assembly; 7. Bearing frame; 71. Through hole; 72. Clearance opening; 8. Snap-fit ​​assembly; 81. Guide rod; 82. Positioning glass bead. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-4 As one embodiment of this utility model, a lens transmittance distribution scanning compensation system is disclosed. The system includes a base 1 and an integrating sphere assembly 2 mounted on the base 1. The integrating sphere assembly 2 includes an integrating sphere, an optical fiber mounted on the integrating sphere, and a spectrometer electrically connected to the light source. The light source is output to the integrating sphere through the material being tested, and the optical fiber outputs the collected optical fiber signal to the spectrometer to realize transmittance detection. The specific principle has been disclosed in the prior art and will not be elaborated here.

[0026] A light source assembly 3 is connected to the base 1 via a bracket. The light source assembly 3 is used to provide an incident light source. Its specific structure is described in the prior art and will not be described in detail here. The light source assembly 3 is located above the integrating sphere assembly 2.

[0027] The integrating sphere assembly 2 is fixedly mounted on the top of a frame 4. A first frame 5 moves along a first direction on the inner side of the frame 4. A second frame 6 moves along a second direction on the inner side of the first frame 5. A carrier frame 7 is detachably connected to the inner side of the second frame 6. The carrier frame 7 has a through hole 71 opposite to the light inlet of the integrating sphere assembly 2.

[0028] It should be noted that the first direction and the second direction mentioned in this embodiment are two mutually perpendicular directions. Specifically, the first direction mentioned in this embodiment is along the overall length direction of the integrating sphere assembly 2, and the second direction is along the width direction of the integrating sphere assembly 2. In this way, by adopting adjustable movement in two directions, the position of the lens under test can be compensated and adjusted during the actual testing process, and multiple positions can be sampled and tested to ensure the accuracy of the transmittance test.

[0029] In some embodiments, the frame 4 of the present invention is threadedly connected to a first screw 51 on its side, and one end of the first screw 51 is rotatably connected to the first frame 5.

[0030] A slot 41 is also provided on the side of the frame 4, and a second screw 61 is placed in the slot 41. The second screw 61 is threadedly connected to the first frame 5 and its end is rotatably connected to the second frame 6.

[0031] In other words, during the actual adjustment process, the first frame 5 can be displaced by rotating the first screw 51, and the second frame 6 will follow suit. Therefore, in this embodiment, a slot 41 is opened on the side of the frame 4 to ensure that the second screw 61 can move synchronously. Of course, when it is necessary to adjust the second position of the bearing frame 7, the position of the second frame 6 can be adjusted by rotating the second screw 61, so as to drive the bearing frame 7 to move back and forth.

[0032] Preferably, in this embodiment, a first spring 52 is fixedly installed on the inner side of the first frame 5 and the frame 4, and a second spring 62 is fixedly installed on the inner side of the second frame 6 and the first frame 5. The first spring 52 and the second spring 62 are used to provide a certain pulling force during the process of pulling back the first frame 5 and the second frame 6, thereby improving the ease of control over the first frame 5 and the second frame 6.

[0033] Furthermore, in this embodiment, the second frame 6 has a stepped opening 63 in the middle, and the carrier frame 7 is placed in the stepped opening 63. A snap-fit ​​component 8 is provided between the stepped opening 63 and the carrier frame 7. The snap-fit ​​component 8 is used to realize the detachable connection of the carrier frame 7. In this way, when the width of the lens to be tested is smaller than the diameter of the through hole 71 of the current carrier frame 7, the carrier frame 7 can be replaced by disassembling to meet the carrying requirements of different lenses.

[0034] Based on the above embodiments, the snap-fit ​​assembly 8 in this embodiment includes two guide rods 81 fixedly installed in the stepped opening 63. The top end of the guide rod 81 passes through the top of the support frame 7, and a positioning glass bead 82 is embedded on the outside of the guide rod 81. The telescopic end of the positioning glass bead 82 stops on the upper side of the support frame 7.

[0035] In addition, to improve the ease of disassembly of the support frame 7, a spring telescopic rod assembly 64 is fixedly installed on the inner side of the stepped opening 63 in this embodiment. The bottom of the support frame 7 has an avoidance opening 72 to avoid the spring telescopic rod assembly 64. The spring telescopic rod assembly 64 includes a telescopic rod and a spring sleeved on the outside of the telescopic rod.

[0036] During installation, the support frame 7 is first placed inside the stepped opening 63, while keeping the guide rod 81 and the support frame 7 interlocked. After the end of the guide rod 81 passes above the support frame 7, the positioning glass bead 82 stops above the support frame 7 to complete the positioning of the support frame 7. During this process, the inner wall of the clearance opening 72 abuts against the telescopic rod to retract it. When disassembling the support frame 7, press the positioning glass bead 82 to retract it inward. At this time, the spring provides a certain counter-pushing force to lift the support frame 7, which can then be freely removed, improving the convenience of replacement.

[0037] In summary, the movable first frame 5 and second frame 6 designed in this utility model are used to control the movement of the carrier frame 7 in the plane. When the lens to be tested is placed on the carrier frame 7, the plane position of the lens can be adjusted to compensate for the position of the lens to be tested during the actual testing process. At the same time, multi-position sampling tests are conducted to ensure the accuracy of the transmittance test.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lens transmittance distribution scanning compensation system, characterized in that, include: Base (1) and integrating sphere assembly (2) mounted on base (1); A light source assembly (3) is connected to the base (1) via a bracket, and the light source assembly (3) is located above the integrating sphere assembly (2); Among them, a frame (4) is fixedly installed on the top of the integrating sphere assembly (2), a first frame (5) is movable along the first direction on the inner side of the frame (4), a second frame (6) is movable along the second direction on the inner side of the first frame (5), and a carrier frame (7) is detachably connected to the inner side of the second frame (6). The carrier frame (7) has a through hole (71) opposite to the light inlet of the integrating sphere assembly (2).

2. The lens transmittance distribution scanning compensation system according to claim 1, characterized in that: The frame (4) is threadedly connected to a first screw (51) on its side, and one end of the first screw (51) is rotatably connected to the first frame (5). A slot (41) is also provided on the side of the frame (4), in which a second screw (61) is placed. The second screw (61) is threadedly connected to the first frame (5), and its end is rotatably connected to the second frame (6).

3. The lens transmittance distribution scanning compensation system according to claim 1, characterized in that: A first spring (52) is fixedly installed on the inner side of the first frame (5) and the frame (4), and a second spring (62) is fixedly installed on the inner side of the second frame (6) and the first frame (5).

4. The lens transmittance distribution scanning compensation system according to claim 1, characterized in that: The second frame (6) has a stepped opening (63) in the middle, and the support frame (7) is placed in the stepped opening (63), wherein a snap-fit ​​component (8) is provided between the stepped opening (63) and the support frame (7).

5. The lens transmittance distribution scanning compensation system according to claim 4, characterized in that: The snap-fit ​​assembly (8) includes two guide rods (81) fixedly installed in the stepped opening (63). The top end of the guide rod (81) passes through the top of the support frame (7). A positioning glass bead (82) is embedded on the outside of the guide rod (81). The telescopic end of the positioning glass bead (82) stops on the upper side of the support frame (7).

6. The lens transmittance distribution scanning compensation system according to claim 5, characterized in that: A spring telescopic rod assembly (64) is also fixedly installed on the inner side of the stepped opening (63), and the bottom of the bearing frame (7) has an avoidance opening (72) to avoid the spring telescopic rod assembly (64).

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