Lens test dispensing device

Abstract

The utility model discloses a lens test dispensing device, and relates to the technical field of lens production. The device comprises a fixing part, the inner diameter of which is matched with the outer diameter of the image side of a lens main cylinder, and the fixing part is used for pressing a target lens in the lens main cylinder; the connecting part is used for being connected with an imaging equipment interface; the fixing part comprises a light through hole; the plurality of dispensing holes are formed in the side surface of the fixing part and are used for dispensing and fixing a target lens in the main cylinder; the internal thread structure is arranged on the inner side face, connected with the lens main barrel, of the fixing part and matched with the external thread of the main barrel. According to the lens testing and dispensing device provided by the utility model, the lens is temporarily fixed for testing and imaging, so that the lens can be dispensed after passing the test, the imaging yield is improved, and the dispensing efficiency is also improved.

Description

Technical Field

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

[0002] Because some lenses have small outer diameters and limited space, and it is necessary to ensure that the optical path is not affected, the lenses cannot be fixed to the main barrel using the conventional clamping method. Instead, they need to be fixed to the main barrel using adhesive.

[0003] Because lens elements within the lens barrel require specific air gaps, if the lens elements are not pressed firmly and secured with adhesive, the air gaps between them cannot be guaranteed, affecting focal length and image sharpness. Therefore, current manufacturing processes for adhesive-coated lenses involve applying adhesive first and then testing the image quality. However, if the image quality fails to meet standards after adhesive curing, disassembly and reassembly are necessary. This disassembly and reassembly process involves a solvent-based adhesive process, which can easily lead to lens failure and defects in the appearance of structural components. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a lens testing adhesive dispensing device, which temporarily fixes the lens for testing and imaging, so that the lens can be glued after the test is passed, thereby improving the imaging yield and dispensing efficiency.

[0005] This utility model is implemented as follows:

[0006] A lens testing adhesive dispensing device, comprising:

[0007] The fixing part has an inner diameter that matches the outer diameter of the image side of the lens main barrel, and is used to press the target lens into the lens main barrel;

[0008] The connector is used for interface connection with imaging equipment;

[0009] The fixing part includes:

[0010] One light aperture;

[0011] Multiple dispensing holes are located on the side of the fixing part to dispense and fix the target lens into the main barrel.

[0012] The internal thread structure is located on the inner side of the fixing part where it connects to the lens main barrel, and matches the external thread of the main barrel.

[0013] Furthermore, the diameter of the target lens is less than or equal to the diameter of the imaging device interface, and the connecting part is an external thread structure provided on the outer side of the fixing part that connects with the imaging device interface.

[0014] Furthermore, the diameter of the target lens is larger than the diameter of the imaging device interface, the outer diameter of the connecting part is smaller than the outer diameter of the fixing part, and the outer surface of the connecting part is provided with an external thread structure that matches the imaging device interface.

[0015] Furthermore, the imaging device is a projector, and the external thread structure is an imperial thread.

[0016] Furthermore, the internal thread structure is a national standard thread.

[0017] Furthermore, the inner side of the light-transmitting hole of the fixing part also includes a protruding structure for pressing the target lens into a designated position inside the lens barrel.

[0018] Furthermore, the protrusion structure is annular.

[0019] Furthermore, the fixing part includes four or six adhesive holes.

[0020] Furthermore, the fixing part also includes auxiliary disassembly holes for assisting in the connection or disassembly of the testing adhesive dispensing device and the lens main barrel.

[0021] The advantages of this utility model are:

[0022] By setting a fixing part to press the target lens into the lens barrel, and setting a connecting part that matches the interface of the imaging equipment, temporary lens fixing test imaging is achieved. This allows the lens to be fixed by dispensing glue through the dispensing hole after the test is passed, which improves the imaging yield and dispensing efficiency. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of a lens structure that uses adhesive to fix the lens element to the main barrel.

[0025] Figure 2 This is one of the structural schematic diagrams of the device of this utility model;

[0026] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure;

[0027] Figure 4 This is the second structural schematic diagram of the device of this utility model;

[0028] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure;

[0029] Figure 6 This is a schematic diagram illustrating the working principle of this utility model. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings and specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Please see Figure 1 The lens shown has an unrestricted outer diameter on the left side of the lens barrel, allowing for increased wall thickness to be used to create a threaded retainer ring to secure the lens. The right side of the lens barrel has a smaller outer diameter, and due to the influence of the optical path, the inner diameter is limited in wall thickness, which is insufficient to create a retainer ring to fix the lens inside the lens barrel. Therefore, the rightmost lens needs to be fixed to the main barrel by dispensing adhesive. The rightmost lens is the target lens for the lens testing dispensing device 100.

[0034] Please see Figures 2 to 5 As shown, this embodiment provides a lens testing adhesive dispensing device 100, including:

[0035] The fixing part 1 has an inner diameter that matches the outer diameter of the image side of the lens main barrel 200, and is used to press the target lens into the lens main barrel 200.

[0036] Connecting part 2 is used to connect to the imaging device interface 300;

[0037] The fixing part 1 includes:

[0038] One light-transmitting aperture 11;

[0039] Multiple dispensing holes 12 are provided on the side of the fixing part 1 for dispensing and fixing the target lens into the main barrel 200; such as Figure 2The fixing part 1 shown includes four glue dispensing holes 12; as shown Figure 4 The fixing part 1 shown includes six dispensing holes 12; other numbers of dispensing holes 12 can also be provided as needed.

[0040] The internal thread structure 13 is provided on the inner side of the fixing part 1 where it connects with the lens main barrel 200, and matches the external thread of the lens main barrel 200.

[0041] Preferably, the inner surface of the light-transmitting hole 11 of the fixing part 1 further includes at least one protruding structure 14 for pressing the target lens into a designated position within the lens main barrel 200. The protruding structure 14 can be annular, a cylinder with multiple protrusions of equal height, or other structures that achieve the same effect.

[0042] Preferably, the fixing part further includes an auxiliary disassembly hole (not shown) for assisting in the connection or disassembly between the lens testing adhesive dispensing device and the lens main barrel. It can be set on the side of the fixing part 1. A specially customized tool is inserted into the auxiliary disassembly hole and rotated to make the lens testing adhesive dispensing device 100 tightly connected to the lens main barrel 200 and easy to remove after the test is completed.

[0043] In one possible implementation, such as Figure 2 and Figure 3 As shown, when the diameter of the target lens is less than or equal to the diameter of the imaging device interface 300, the connecting part 2 is an externally threaded structure 21 provided on the outer side of the fixing part 1 that connects to the imaging device interface 300. To ensure the placement of the dispensing hole 12, this method can also be used when the diameter of the target lens is slightly larger than the diameter of the imaging device interface 300.

[0044] In another possible implementation, such as Figure 4 and Figure 5 As shown, when the diameter of the target lens is larger than the diameter of the imaging device interface 300, the outer diameter of the connecting part 2 is smaller than the outer diameter of the fixing part 1, and the outer surface of the connecting part 2 is provided with an external thread structure 21 that matches the imaging device interface 300. This implementation method can be used when the diameter of the target lens is significantly larger than the diameter of the imaging device interface 300, and the connecting part 2 does not obstruct the dispensing position.

[0045] Preferably, the imaging device is a projector, and the external thread structure 21 is an imperial thread, as current projector interfaces are all 1-inch external threads. The internal thread structure 13 is a national standard thread, adapted to different lens specifications according to different lens sizes and focal length requirements.

[0046] Please refer to Figure 6 The working principle of this utility model is as follows:

[0047] 1. Place the target lens inside the lens barrel 200, and then tightly connect the fixing part 1 of the lens testing adhesive dispensing device 100 to the lens barrel 200 through the matching of the thread structure, so that the target lens is pressed tightly inside the lens barrel 200.

[0048] 2. Connect the connecting part 2 to the imaging device interface 300 via a threaded structure, and then perform an imaging test;

[0049] 3. If the test passes, remove the connecting part 2 from the imaging device interface 300 and apply glue through each glue dispensing hole 12 to fix the lens inside the main tube 200; after the lens is fixed, remove the lens test glue dispensing device 100.

[0050] 4. If the test fails, remove the connector 2 directly from the imaging device interface 300 without applying glue, and then remove the lens test glue application device 100. At this time, the target lens has not been glued and can be removed directly for rework.

[0051] This invention uses a fixing part to press the target lens into the main barrel of the lens, and a connecting part that matches the interface of the imaging equipment to achieve temporary lens fixation for test imaging. This allows the lens to be fixed by dispensing glue through the dispensing hole after the test is passed, which improves both the imaging yield and the dispensing efficiency.

[0052] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A lens testing adhesive dispensing device, characterized in that, include: The fixing part has an inner diameter that matches the outer diameter of the image side of the lens main barrel, and is used to press the target lens into the lens main barrel; The connector is used for interface connection with imaging equipment; The fixing part includes: One light-transmitting aperture; Multiple dispensing holes are located on the side of the fixing part to dispense and fix the target lens into the main barrel. The internal thread structure is located on the inner side of the fixing part that connects to the lens main barrel, and matches the external thread of the lens main barrel.

2. The apparatus according to claim 1, characterized in that: The diameter of the target lens is less than or equal to the diameter of the imaging device interface, and the connecting part is an external thread structure provided on the outer side of the fixing part that connects with the imaging device interface.

3. The apparatus according to claim 1, characterized in that: The diameter of the target lens is larger than the diameter of the imaging device interface, the outer diameter of the connecting part is smaller than the outer diameter of the fixing part, and the outer surface of the connecting part is provided with an external thread structure that matches the imaging device interface.

4. The apparatus according to claim 2 or 3, characterized in that: The imaging device is a projector, and the external thread structure is an imperial thread.

5. The apparatus according to claim 1, characterized in that: The internal thread structure is a national standard thread.

6. The apparatus according to claim 1, characterized in that: The inner side of the light-transmitting hole of the fixing part also includes a protruding structure for pressing the target lens into a designated position inside the lens barrel.

7. The apparatus according to claim 6, characterized in that: The protruding structure is ring-shaped.

8. The apparatus according to claim 1, characterized in that: The fixing part includes four or six adhesive holes.

9. The apparatus according to claim 1, characterized in that: The fixing part also includes auxiliary disassembly holes for assisting in the connection or disassembly of the testing adhesive dispensing device and the lens main barrel.

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