Transmittance detecting device

Abstract

The utility model belongs to lens detection technical field discloses the transmittance detection device, including the lens base, the through -hole base and the counterweight base that set gradually, and detachable connection between two adjacent, the lens can be disassembled and installed in the lens base, the through -hole base is provided with the light hole and is passed in, the axis of lens base, the through -hole base and the counterweight base three coincides with the axis of lens, and the light hole is located on the axis of lens. The utility model discloses through the lens base fixed lens, and set up the light hole on the through -hole base for transmittance detection, and the lens base, the through -hole base and the counterweight base three detachable connection, can set up into several specifications with the lens base and the through -hole base, to be applicable to the installation of different lenses, and utilize the size of the light hole of different specifications through -hole base change, realize different detection effect, to this improves the utilization of whole device, reduces the measurement cost.

Description

Technical Field

[0001] This utility model relates to the field of lens testing technology, and in particular to a transmittance testing device. Background Technology

[0002] Lens transmittance is an indicator that measures the actual efficiency of light transmission through a lens. It is particularly important in optical lens testing, and a higher transmittance value indicates a stronger ability to utilize light and better image quality. In existing measurement techniques, auxiliary measuring fixtures are typically used to perform one-to-one measurements on each lens. Specifically, because fixed-focus lenses have different threaded interfaces and varying parameters, multiple auxiliary measuring fixtures are needed to test each lens individually when measuring transmittance. This not only limits the applicability of the measuring fixtures but also makes it difficult to distinguish between them due to the large number of fixtures. Correspondingly, there are certain requirements for the size of the light-transmitting aperture used in the measurement, but existing fixtures are difficult to manufacture for this purpose. Therefore, how to ensure that the measuring device is suitable for lenses of different specifications and can utilize light-transmitting apertures of different sizes for testing, effectively improving fixture utilization and reducing measurement costs, is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0003] The purpose of this invention is to provide a transmittance detection device to ensure that the measuring device is applicable to lenses of different specifications and can be used for detection with light-transmitting apertures of different sizes, thereby effectively improving fixture utilization and reducing measurement costs.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A transmittance detection device for measuring the light transmittance of a lens, wherein the transmittance detection device includes:

[0006] A lens base, a through-hole base, and a counterweight base are arranged sequentially, and adjacent pairs are detachably connected. The lens is detachably installed in the lens base. A light-transmitting hole is provided through the through-hole base. The axes of the lens base, the through-hole base, and the counterweight base coincide with the axis of the lens, and the light-transmitting hole is located on the axis of the lens.

[0007] Optionally, the spacing between the lens base, the through-hole base, and the counterweight base is adjustable.

[0008] Alternatively, adjacent pairs of the lens base, the through-hole base, and the counterweight base may be screwed together.

[0009] Optionally, the lens base is provided with a receiving groove and a connecting limiting groove that communicate with each other along its axial direction, and the lens passes through the receiving groove and is connected and limited in the connecting limiting groove.

[0010] Optionally, the lens base has a protrusion along its axial direction and facing the through hole base, and the protrusion has a through hole through it along the axial direction of the lens base. The through hole and the axis of the light-transmitting hole are on the same straight line, and the through hole 101 is connected to the connecting limiting groove 103.

[0011] Optionally, the light-transmitting hole includes a guide hole and a light hole that communicate with each other. The guide hole is disposed on the side of the light-transmitting hole base facing the lens base, and the light hole is disposed through the light-transmitting hole base.

[0012] Alternatively, the guide hole is configured as a tapered hole, and the cross-sectional area of ​​the tapered hole gradually decreases as it approaches the light hole along the axial direction of the through hole base.

[0013] Optionally, the counterweight base is provided with a connecting portion and an extension portion extending along the axial direction of the counterweight base. The connecting portion and the extension portion are provided with an optical path channel through the axial direction of the counterweight base. The top of the extension portion is provided with an opening, and the optical path channel is connected to the light-transmitting hole and the opening.

[0014] Optionally, it also includes support bases, two of which are disposed opposite each other below the lens base, the through-hole base, and the counterweight base.

[0015] Optionally, the support base is provided with an inclined support surface, and the support surfaces of the two support bases are inclined from top to bottom in a direction close to each other, with the outer sides of the lens base, the through hole base and the counterweight base abutting against the support surface.

[0016] The beneficial effects of this utility model are:

[0017] In this invention, adjacent pairs of the lens base, through-hole base, and counterweight base are detachably connected, allowing for quick assembly and disassembly, and enabling categorized storage of the three components. Specifically, the lens is detachably mounted on the lens base, and a light-transmitting hole is provided through the through-hole base. The detachable connection between the lens base, through-hole base, and counterweight base allows for the creation of several specifications of both the lens base and through-hole base to accommodate different lenses. By using different specifications of through-hole bases to change the size of the light-transmitting hole, different detection effects can be achieved, thereby improving the utilization rate of the entire device and reducing measurement costs. Specifically, the axes of the lens base, through-hole base, and counterweight base coincide with the axis of the lens, and the light-transmitting hole is located on the lens axis, allowing the light beam to pass smoothly and ensuring the accuracy of transmittance detection. Attached Figure Description

[0018] Figure 1 This is an isometric schematic diagram of the transmittance detection device described in an embodiment of the present invention;

[0019] Figure 2 This is another isometric schematic diagram of the transmittance detection device described in this embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional schematic diagram of the transmittance detection device described in an embodiment of the present invention;

[0021] Figure 4 This is an isometric schematic diagram of the lens base in the transmittance detection device described in this embodiment of the utility model;

[0022] Figure 5 This is another isometric view of the lens base in the transmittance detection device described in this embodiment of the utility model;

[0023] Figure 6 This is a cross-sectional schematic diagram of the lens base in the transmittance detection device described in this embodiment of the utility model;

[0024] Figure 7 This is an isometric schematic diagram of the through-hole base in the transmittance detection device described in this embodiment of the utility model;

[0025] Figure 8 This is another isometric view of the through-hole base in the transmittance detection device described in this embodiment of the utility model;

[0026] Figure 9 This is a cross-sectional schematic diagram of the through-hole base in the transmittance detection device described in this embodiment of the utility model;

[0027] Figure 10 This is a structural diagram of the counterweight base in the transmittance detection device described in this embodiment of the utility model;

[0028] Figure 11 This is a side view of the counterweight base in the transmittance detection device described in this embodiment of the utility model.

[0029] In the picture:

[0030] 100 - Lens; 10 - Lens mount; 20 - Through-hole mount; 30 - Counterweight mount; 40 - Support base;

[0031] 11-Boss; 111-First step; 112-Second step; 12-First clearance groove; 13-First connecting ring; 131-First connecting surface; 101-Through hole; 102-Annular space; 103-Connecting limiting groove; 104-Accommodation groove;

[0032] 21-Guide hole; 22-Second connecting ring; 221-Second connecting surface; 23-Second clearance groove; 24-Third connecting ring; 241-Third connecting surface; 25-Third clearance groove; 201-Light hole; 202-Accommodation space;

[0033] 31-Fourth connecting ring; 311-Fourth connecting surface; 32-Connecting part; 33-Extension part; 34-Fourth clearance groove; 301-Optical path channel; 302-Opening;

[0034] 401 - Support surface. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The technical solution of this embodiment will be further described below with reference to the accompanying drawings and specific implementation methods.

[0039] like Figures 1-11As shown, this embodiment provides a transmittance detection device, including a lens base 10, a through-hole base 20, a counterweight base 30, and a support base 40. A lens 100 is detachably mounted in the lens base 10 for transmitting light through different lenses 100. Optionally, the lens base 10, through-hole base 20, and counterweight base 30 are detachably connected, and their axes coincide with the axis of the lens 100 to ensure stable mounting of the lens 100 and accuracy of the transmitted light beam. Specifically, in this embodiment, the lens base 10, through-hole base 20, and counterweight base 30 are placed on the support base 40 to ensure stability during the detection process. Exemplarily, two support bases 40 are provided, facing each other and located below the lens base 10, through-hole base 20, and counterweight base 30, to provide lateral limiting support to their bottoms and prevent movement of the lens 100 during the detection process. Furthermore, the distance between the lens base 10, the through hole base 20, and the counterweight base 30 is adjustable, thereby adjusting the light transmission distance of the lens 100 during testing.

[0040] like Figures 1-3 As shown, in this embodiment, the lens base 10, through-hole base 20, and counterweight base 30 are arranged sequentially along the axial direction of the lens 100, and adjacent units are connected by threads to achieve a detachable connection for easy classification and storage. Specifically, in this embodiment, the lens base 10 is provided in various specifications to suit different specifications of the lens 100, ensuring stable installation. Furthermore, the through-hole base 20 is also provided in various specifications, and the aperture of the light-transmitting hole in different specifications of the through-hole base 20 is different. Thus, by replacing the through-hole base 20, the transmittance of the lens 100 in different holes can be detected, resulting in more accurate detection results.

[0041] like Figures 4-6 As shown, optionally, a boss 11 protrudes from the lens base 10 along the axial direction of the lens base 10 and toward the through-hole base 20. A first step 111 and a second step 112 are spaced apart inside the boss 11, and a through-hole 101 is provided through the boss 11 along the axial direction of the lens base 10. Exemplarily, the first step 111 and the inner wall of the boss 11 form a receiving groove 104, and the second step 112 and the inner wall of the boss 11 form a connecting limiting groove 103. The receiving groove 104 and the connecting limiting groove 103 are interconnected. Specifically, the connecting limiting groove 103 and the receiving groove 104 are arranged along the axial direction of the lens base 10, and the inner diameter of the receiving groove 104 is larger than the inner diameter of the connecting limiting groove 103, and the inner diameter of the connecting limiting groove 103 is larger than the inner diameter of the through-hole 101, to limit the installation of the lens 100. Exemplarily, the connecting limiting groove 103 and the through-hole 101 are interconnected for light beam transmission. Combination Figure 3As shown, the lens 100 passes through the receiving groove 104 and is connected to and confined in the connecting limiting groove 103. Exemplarily, the lens 100 is screwed to the side wall of the connecting limiting groove 103, thereby fixing the position of the lens 100 through the connecting limiting groove 103 to prevent it from moving, and allowing the receiving groove 104 to avoid interference with the external structure of the lens 100 during installation.

[0042] like Figure 5 and Figure 6 As shown, the lens base 10 has an annular space 102 on the outer side of the boss 11, and the inner wall of the annular space 102 is recessed with a first clearance groove 12. The lens base 10 also has a first connecting ring 13, located on the side of the first clearance groove 12 away from the boss 11. Optionally, the first clearance groove 12 is an annular groove. For example, the inner diameter of the first connecting ring 13 is smaller than the inner diameter of the first clearance groove 12 but larger than the inner diameter of the annular space 102, thus forming a third step at the connection between the first clearance groove 12 and the annular space 102 to limit the through-hole base 20. Specifically, the inner wall of the first connecting ring 13 is a first connecting surface 131, and the first connecting surface 131 has an internal thread, so that the through-hole base 20 is screwed onto the first connecting surface 131 and can be limited at the third step. Further, the top surface of the boss 11 can abut against the end face of the through-hole base 20 to ensure stable beam transmission.

[0043] like Figures 7-9 As shown, in this embodiment, a light-transmitting hole is provided through the through-hole base 20, and the light-transmitting hole is located on the axis of the lens 100 to ensure the accuracy of the light transmittance detection of the lens 100. Specifically, when the through-hole base 20 is screwed into the lens base 10, the axes of the through-hole 101 and the light-transmitting hole are located on the same straight line, and the through-hole 101 is connected to the connecting limiting groove 103 to ensure that after the lens 100 is placed in the lens base 10, the center of the lens 100, the center of the through-hole 101, and the center of the light-transmitting hole are all on the same straight line, so that the light beam can pass through the through-hole 101 and the light-transmitting hole in sequence along the straight line for detection.

[0044] Optionally, the light-transmitting aperture includes a guide hole 21 and a light hole 201 that are interconnected. The guide hole 21 is disposed on the side of the through-hole base 20 facing the lens base 10, and the light hole 201 is disposed through the through-hole base 20 to facilitate alignment. For example, the guide hole 21 is configured as a tapered hole, and as it gradually approaches the light hole 201 along the axial direction of the through-hole base 20, the cross-sectional area of ​​the tapered hole gradually decreases until it is equal to that of the light hole 201. Thus, the guide hole 21 allows for pre-alignment of the central axis of the lens 100 when it is placed, and then adjustment is made to align the central axis of the lens 100 with the light hole 201, ensuring the accuracy of light path transmission. Further, the through-hole base 20 is provided with a second connecting ring 22, and the outer side of the second connecting ring 22 is configured as a second connecting surface 221. For example, the second connecting surface 221 is provided with an external thread, and the external thread of the second connecting surface 221 matches the internal thread of the first connecting surface 131. Thus, the second connecting ring 22 is screwed onto the first connecting ring 13, thereby realizing a detachable connection between the lens base 10 and the through hole base 20.

[0045] Furthermore, the through-hole base 20 is also provided with a third connecting ring 24, and a third connecting surface 241 is provided inside the third connecting ring 24. Specifically, a second clearance groove 23 is provided between the second connecting ring 22 and the third connecting ring 24. Optionally, the second clearance groove 23 is configured as an annular groove. Exemplarily, the inner diameter of the second clearance groove 23 is smaller than the outer diameter of the second connecting ring 22, and the outer diameter of the second connecting ring 22 is smaller than the outer diameter of the third connecting ring 24, thereby forming a fourth step at the connection between the second clearance groove 23 and the third connecting ring 24 to abut against the lens base 10. Specifically, the second connecting surface 221 of the second connecting ring 22 is screwed to the first connecting surface 131 of the first connecting ring 13, and when the side of the through-hole base 20 abuts against the end face of the boss 11, the outer end face of the first connecting ring 13 can abut against the fourth step to achieve limiting. For example, the outer diameter of the third connecting ring 24 is the same as the outer diameter of the first connecting ring 13, so as to ensure that there is no protrusion on the outside when the lens base 10 is connected to the through hole base 20.

[0046] like Figure 8 and Figure 9As shown, the through-hole base 20 has an internal accommodating space 202 for placing the counterweight base 30. Specifically, the inner wall of the accommodating space 202, located inside the third connecting ring 24, has a third clearance groove 25 recessed. Optionally, the third clearance groove 25 is an annular groove. Exemplarily, the inner diameter of the third connecting ring 24 is smaller than the inner diameter of the third clearance groove 25, and the inner diameter of the third clearance groove 25 is larger than the inner diameter of the accommodating space 202, thereby forming a fifth step at the connection between the third clearance groove 25 and the accommodating space 202 to limit the counterweight base 30. Specifically, the inner wall of the third connecting ring 24 is a third connecting surface 241, and the third connecting surface 241 is provided with an internal thread. The counterweight base 30 is screwed onto the third connecting surface 241 and can be limited at the fifth step to achieve the limiting effect.

[0047] like Figure 10 and Figure 11 As shown, the counterweight base 30 is provided with a fourth connecting ring 31, a connecting portion 32, and an extension portion 33. Specifically, the connecting portion 32 is configured as a ring structure, and its two sides are respectively connected to the fourth connecting ring 31 and the extension portion 33. Exemplarily, the extension portion 33 extends along the axial direction of the counterweight base 30, and the fourth connecting ring 31, the connecting portion 32, and the extension portion 33 are arranged in a light path channel 301 along the axial direction of the counterweight base 30. The top of the extension portion 33 is provided with an opening 302. After the lens base 10, the through-hole base 20, and the counterweight base 30 are installed, the opening 302 is placed facing upwards, thereby connecting the light-transmitting hole and the opening 302 through the light path channel 301, so that the operator can observe the situation of the lens 100 transmitting light through the light-transmitting hole onto the card through the opening 302. Exemplarily, the card is placed on the side of the counterweight base 30 away from the through-hole base 20.

[0048] Optionally, the outer surface of the fourth connecting ring 31 is configured as a fourth connecting surface 311, and an external thread is provided on the fourth connecting surface 311. Specifically, the external thread of the fourth connecting surface 311 mates with the internal thread of the third connecting surface 241 of the third connecting ring 24, thereby realizing the screw connection between the through-hole base 20 and the counterweight base 30. Further, a fourth clearance groove 34 is recessed between the fourth connecting ring 31 and the connecting part 32. Optionally, the fourth clearance groove 34 is an annular groove. Exemplarily, the inner diameter of the fourth clearance groove 34 is smaller than the outer diameter of the fourth connecting ring 31, and the outer diameter of the fourth connecting ring 31 is smaller than the outer diameter of the connecting part 32, thereby forming a sixth step at the connection between the fourth clearance groove 34 and the connecting part 32, which abuts against the through-hole base 20. Specifically, when the outer end face of the fourth connecting ring 31 abuts against the fifth step, the connecting part 32 facing the inner end face of the fourth connecting ring 31 can abut against the outer end face of the third connecting ring 24, thereby achieving a limiting position. For example, the outer diameter of the connecting part 32 is the same as the outer diameter of the third connecting ring 24, so as to ensure that there is no protrusion on the outside when the through hole base 20 is connected to the counterweight base 30.

[0049] Specifically, in this embodiment, by setting the first clearance groove 12, the second clearance groove 23, the third clearance groove 25 and the fourth clearance groove 34, a smooth connection between the lens base 10, the through hole base 20 and the counterweight base 30 can be ensured.

[0050] like Figure 11 As shown, in this embodiment, the connecting part 32 and the extension part 33 are an integrated structure, and both have an L-shaped cross-section. Specifically, the opening 302 extends through the side of the extension part 33 away from the connecting part 32 along the axial direction of the counterweight base 30, and the opening 302 is placed facing upwards for easy observation by the operator.

[0051] like Figure 1 and Figure 2 As shown, in this embodiment, two support bases 40 are provided, and each support base 40 has an inclined support surface 401. Specifically, the two support bases 40 are arranged opposite each other, and the two support surfaces 401 are also arranged opposite each other, with the support surfaces 401 of the two support bases 40 inclined from top to bottom in the direction of proximity to each other. Exemplarily, the end of the support surface 401 near the lens base 10, the through hole base 20, and the counterweight base 30 is the lower end, and the end of the support surface 401 away from the lens base 10, the through hole base 20, and the counterweight base 30 is the higher end. Specifically, the outer sides of the lens base 10, the through hole base 20, and the counterweight base 30 abut against the support surface 401, thereby ensuring the stable placement of the lens 100 and improving the stability of the testing process.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A transmittance detection device for measuring the transmittance of a lens (100), characterized in that, The transmittance detection device includes: A lens base (10), a through-hole base (20), and a counterweight base (30) are arranged sequentially, and adjacent parts are detachably connected. The lens (100) is detachably installed in the lens base (10). A light-transmitting hole is provided through the through-hole base (20). The axes of the lens base (10), the through-hole base (20), and the counterweight base (30) coincide with the axis of the lens (100), and the light-transmitting hole is located on the axis of the lens (100).

2. The transmittance detection device according to claim 1, characterized in that, The distance between the lens base (10), the through hole base (20), and the counterweight base (30) is adjustable.

3. The transmittance detection device according to claim 2, characterized in that, The lens base (10), the through hole base (20), and the counterweight base (30) are screwed together between adjacent ones.

4. The transmittance detection device according to claim 1, characterized in that, The lens base (10) is provided with a receiving groove (104) and a connecting limiting groove (103) that are interconnected along its axial direction. The lens (100) passes through the receiving groove (104) and is connected and limited in the connecting limiting groove (103).

5. The transmittance detection device according to claim 4, characterized in that, The lens base (10) has a boss (11) protruding along its axial direction and toward the through hole base (20). The boss (11) has a through hole (101) through it along the axial direction of the lens base (10). The through hole (101) and the axis of the light-transmitting hole are on the same straight line, and the through hole (101) is connected to the connecting limiting groove (103).

6. The transmittance detection device according to claim 1, characterized in that, The light-transmitting hole includes a guide hole (21) and a light hole (201) that are interconnected. The guide hole (21) is disposed on the side of the through-hole base (20) facing the lens base (10), and the light hole (201) is disposed through the through-hole base (20).

7. The transmittance detection device according to claim 6, characterized in that, The guide hole (21) is set as a tapered hole, and as it gradually approaches the light hole (201) along the axial direction of the through hole base (20), the cross-sectional area of ​​the tapered hole gradually decreases.

8. The transmittance detection device according to claim 1, characterized in that, The counterweight base (30) is provided with a connecting part (32) and an extension part (33) extending along the axial direction of the counterweight base (30). The connecting part (32) and the extension part (33) are provided with an optical path channel (301) through the axial direction of the counterweight base (30). The top of the extension part (33) is provided with an opening (302). The optical path channel (301) connects the light-transmitting hole and the opening (302).

9. The transmittance detection device according to claim 1, characterized in that, It also includes support bases (40), two of which are disposed opposite to each other below the lens base (10), the through hole base (20) and the counterweight base (30).

10. The transmittance detection device according to claim 9, characterized in that, The support base (40) is inclined with a support surface (401), and the support surfaces (401) of the two support bases (40) are inclined from top to bottom in the direction of approaching each other. The outer sides of the lens base (10), the through hole base (20) and the counterweight base (30) abut against the support surface (401).

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