Lens film coating plate

Abstract

A lens coating plate comprises a base, the base is of a rectangular structure, a containing groove is formed in the center of the base, driving devices are installed on the periphery of the containing groove, telescopic rods are installed on the driving devices, fixing blocks are installed at the other ends of the telescopic rods, and lenses are fixed through inward extrusion of the fixing blocks; according to the utility model, the fixed block is arranged to fix the lens, the curved block can adapt to the fixation of the lenses in different shapes in the bulges and the curved block arranged on the fixed block, and the gaps between the bulges can ventilate and dissipate heat in the coating process in the extruding and supporting process of the bulges, so that the uniform heat at the edge of the lens is ensured; and lens bursting caused by lens coating heat concentration is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lens coating, in particular to a lens coating plate. Background Art

[0002] With the development of science and technology, optical lenses have been widely developed and used in digital cameras, mobile phones, projectors, cameras and other technical fields. Optical lenses need to ensure high purity and uniformity during the production process. Coating is one of the important steps in lens processing.

[0003] When coating lenses, the lenses are usually placed in a high-temperature vacuum environment, and the coating plate needs to be fixed firmly to ensure uniform coating of the lenses. However, when the fixing device in the traditional coating plate is used to fix the lenses, the surrounding area of ​​the fixed lens will cause the local temperature of the lens to be too high as the coating time increases. The local high temperature may cause the lens to burst, thereby reducing the coating efficiency.

[0004] Therefore, in order to ensure that the lens is normally coated and the lens temperature does not burst due to excessive local temperature, this design proposes a lens coating plate. Utility Model Content

[0005] The utility model aims to provide a lens coating plate.

[0006] A lens coating plate comprises: a base, the base structure being a rectangular structure, wherein a placement slot is provided at the center of the base, a driving device is installed around the placement slot, a telescopic rod is installed on the driving device, and a fixing block is installed at the other end of the telescopic rod, and the lens is fixed by squeezing the fixing block inward.

[0007] Preferably, a concave circular surface is provided in the middle portion of the placement groove, and the outer edge structure of the placement groove is a square structure.

[0008] Preferably, the driving device has a built-in micro motor, and the micro motor controls the extension and contraction of the telescopic rod. The number of the driving devices is four, and the driving devices are symmetrically installed.

[0009] Preferably, the fixing block structure is an arc-shaped structure, and the surface of the fixing block is covered with a soft rubber sleeve.

[0010] Preferably, the fixing block includes: a curved block and a protrusion, the curved block structure is an arc-shaped structure and has elasticity, the inner side of the curved block is provided with a protrusion, and the protrusion structure is a tooth-like structure.

[0011] The beneficial effects of the above scheme are:

[0012] The utility model fixes the lens by arranging a fixing block. At the same time, among the protrusions and curved blocks arranged on the fixing block, the curved block can adapt to the fixation of lenses of different shapes. During the extrusion and support process of the protrusion, the gap among the protrusion can be ventilated and dissipated in the coating, thereby ensuring uniform heat distribution at the edge of the lens and preventing the lens from bursting due to concentrated heat in the lens coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the top structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the fixed block structure of the utility model;

[0016] Figure 4 This is a bottom view structural diagram of the fixed block of the utility model;

[0017] In the figure: 1, base; 2, driving device; 3, placement slot; 4, fixing block; 41, curved block; 42, protrusion; 5, telescopic rod. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0019] like Figure 1 、 Figure 2 As shown, a lens coating plate comprises: a base 1, the base 1 having a rectangular structure, wherein a placement slot 3 is provided at the center of the base 1, a driving device 2 is installed around the placement slot 3, a telescopic rod 5 is installed on the driving device 2, and a fixing block 4 is installed at the other end of the telescopic rod 5, and the fixing block 4 is pressed inward to fix the lens;

[0020] When working, it is only necessary to place the lens in the placement groove 3, and then drive the telescopic rod 5 through the driving device 2 to move, and press the fixing block 4 against the edge of the lens to fix the lens.

[0021] like Figure 2 As shown, specifically, the middle portion of the placement groove 3 is provided with a circular curved concave surface, and the outer edge structure of the placement groove 3 is a square structure;

[0022] Since the lens has a curvature, the convex position of the lens is aligned with the position in the placement groove 3 during the placement process, so the lens can fit tightly, further stabilizing the lens, preventing the lens from sliding during the coating process, and facilitating the fixation of the lens.

[0023] like Figure 1As shown, specifically, the driving device 2 has a built-in micro motor, and the micro motor controls the extension and shortening of the telescopic rod 5. The driving device 2 is four in number and is symmetrically installed. The driving device 2 is used to control the extension and shortening of the telescopic rod 5, thereby controlling the squeezing force of the fixed block 4 on the lens.

[0024] Specifically, the fixing block 4 has an arc-shaped structure, and the surface of the fixing block 4 is covered with a soft rubber sleeve; the added rubber sleeve can make the contact between the fixing block 4 and the lens soft, preventing the fixing block 4 from damaging the edge of the lens due to hard contact between the fixing block 4 and the lens.

[0025] like Figure 3 、 Figure 4 As shown, specifically, the fixing block 4 includes: a curved block 41 and a protrusion 42. The curved block 41 is an arc-shaped structure with elasticity. The inner side of the curved block 41 is provided with a protrusion 42. The protrusion 42 is a tooth-like structure.

[0026] During operation, the fixing block 4 squeezes and fixes the lens under the control of the telescopic rod 5, and the protrusion 42 will contact the edge of the lens. When the contact is a curved edge, the curved structure of the fixing block 4 can well wrap and fix the side of the lens. When the contacted edge of the lens is a straight line, the protrusion 42 will separate when squeezing the straight edge of the lens, so that the curved block 41 will unfold. During the squeezing process, the curved block 41 unfolds to adapt to the fixation of the straight edge. At the same time, when the fixation is completed and the coating is performed, the gap in the middle of the protrusion 41 can help ventilation, avoid heat concentration at the edge of the lens, and improve the yield rate of lens coating.

[0027] Working principle:

[0028] A lens coating plate comprises: a base 1, a drive device 2, a placement slot 3, a fixing block 4, and a telescopic rod 5. When in operation, a lens to be coated is placed in the placement slot 3, and the drive device 2 controls the telescopic rod 5 to control the fixing block 4 to squeeze the side edge of the lens. During the squeezing and fixing process, if the lens has an arc-shaped edge, the fixing block 4 can play a wrapping role to further stabilize the lens. At the same time, the gap between the protrusions 42 can help dissipate heat. When the lens has a straight edge, the curved block 41 will expand under the action of pressure, and the gap between the protrusions 42 will increase, which is beneficial to the heat dissipation of the lens during coating. At the same time, this device can adapt to the coating of lenses of different shapes, thereby improving the efficiency of coating.

Claims

1. A lens coating plate, comprising: A base (1) is a rectangular structure, characterized in that a placement groove (3) is provided at the center of the base (1), a driving device (2) is installed around the placement groove (3), a telescopic rod (5) is installed on the driving device (2), and a fixing block (4) is installed at the other end of the telescopic rod (5), and the lens is fixed by pressing the fixing block (4) inward.

2. A lens coating plate according to claim 1, characterized in that: The middle portion of the placement groove (3) is provided with a circular curved surface concave therein, and the outer edge structure of the placement groove (3) is a square structure.

3. The lens coating plate according to claim 1, wherein: The driving device (2) has a built-in micro motor, and the micro motor controls the extension and contraction of the telescopic rod (5). The number of the driving devices (2) is four, and the driving devices (2) are symmetrically installed.

4. The lens coating plate according to claim 1, wherein: The fixed block (4) has an arc-shaped structure, and the surface of the fixed block (4) is covered with a soft rubber sleeve.

5. The lens coating plate according to claim 4, characterized in that: The fixed block (4) comprises: a curved block (41) and a protrusion (42); the curved block (41) is an arc-shaped structure and has elasticity; the protrusion (42) is provided on the inner side of the curved block (41); and the protrusion (42) is a tooth-like structure.

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