Optical glass coating clamp and tray

Abstract

The utility model relates to the technical field of glass coating, in particular to an optical glass coating clamp which sequentially comprises an upper cover plate, a mask plate, a positioning plate and a bottom plate from top to bottom. The optical glass is arranged on the bottom plate, the positioning plate is suitable for positioning the optical glass, the mask plate is provided with a hollow pattern, the hollow pattern directly faces the optical glass, and the upper cover plate is suitable for being connected with the bottom plate and pressing the optical glass, the positioning plate and the mask plate. According to the utility model, the coating quality of optical glass can be improved through the positioning plate and the mask plate; the utilization efficiency of the clamp is improved by installing four pieces of optical glass; and the tray is used for bearing more optical glass coating films, so that high coating efficiency is provided.

Description

Technical Field

[0001] This utility model relates to the field of glass coating technology, specifically to an optical glass coating fixture and tray. Background Technology

[0002] Optical glass is a highly homogeneous type of glass, making it a material used in optical components such as lenses and prisms. Optical coating refers to the process of depositing one or more layers of metal or dielectric thin films onto the surface of optical glass. The purpose of coating optical glass surfaces is to reduce or increase light reflection, beam splitting, color separation, filtering, polarization, and other requirements. Vacuum coating equipment is commonly used for coating.

[0003] Chinese Patent CN115677232B describes an optical glass coating fixture. In use, a magnetic slip ring is fitted onto the top of the optical glass to be coated. When the optical glass with the magnetic slip ring is placed into the clamping ring, the magnetic slip ring, which is slidably connected to the bottom of the clamping ring, moves upward by the magnetic attraction between the two magnetic slip rings, causing them to overcome the elastic force of the return spring and approach each other, thereby initially clamping the optical glass in the clamping ring. At the same time, as the two magnetic slip rings approach each other, the insertion plate is gradually inserted into the insertion slot, causing the air bladder in the storage slot to be pressurized and overflow from the first overflow slot, thereby achieving the purpose of flexibly clamping the side of the optical glass.

[0004] Existing patented technologies primarily address the issue of flexibly clamping optical glass. However, customers now have higher requirements for the coating position on optical glass, such as wanting the metal film pattern of the lens to be in the center of the lens.

[0005] If existing coating equipment is used, in actual use, some patterns with very fine lines are not easily formed on the processed lenses, which can easily lead to broken lines or unclear patterns due to insufficient reflectivity. Therefore, higher requirements are placed on the fixtures of the coating equipment during the coating process. Utility Model Content

[0006] The purpose of this invention is to provide an optical glass coating fixture and tray to solve the problems existing in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an optical glass coating fixture, the fixture comprising, from top to bottom, an upper cover plate, a mask plate, a positioning plate and a base plate, the optical glass being disposed on the base plate, the positioning plate being suitable for positioning the optical glass, the mask plate having a hollow pattern facing the optical glass, and the upper cover plate being suitable for connecting with the base plate and pressing the optical glass, the positioning plate and the mask plate together.

[0008] Through the above technical solution, the positioning plate fixes the optical glass to the base plate, preventing the optical glass from easily shifting or shaking during the coating equipment's rotation. The perforated pattern on the mask plate faces the optical glass, allowing the coating pattern to be formed at designated positions on the optical glass, meeting customer needs. Finally, the top cover plate is fastened to the base plate, precisely pressing the mask plate to prevent it from shaking. This ensures accurate coating of the optical glass and improves the stability of the coating pattern lines, thereby enhancing the coating quality.

[0009] Furthermore, the optical glass has a horizontal cross-section, which has an arc portion and a flat bottom; the upper cover plate, positioning plate, and bottom plate are respectively provided with a slot, a positioning groove, and a placement groove with the same shape as the horizontal cross-section, and the slot, positioning groove, and placement groove are all provided with an arc portion and a flat bottom, the flat bottom being suitable for positioning the placement direction of the convex lens; the convex lens, the slot, the positioning groove, and the placement groove are located on the same vertical central axis.

[0010] Through the above technical solution, the optical glass used in this embodiment is a lens with a horizontal bottom. Therefore, the top cover plate, positioning plate, and bottom plate are all provided with slots, positioning grooves, and placement grooves that are the same shape as the lens. Simultaneously, the flat bottoms of the slots, positioning grooves, and placement grooves can be used to position the lens's placement direction, avoiding worker errors. The slots, positioning grooves, and placement grooves are all the same size, and their overlap is consistent when stacked vertically.

[0011] Furthermore, the upper cover plate has four evenly distributed slots; the positioning plate has four evenly distributed positioning slots; and the bottom plate has four evenly distributed placement slots.

[0012] With the above technical solution, one fixture can hold four lenses for simultaneous coating, which improves both coating quality and coating efficiency.

[0013] Furthermore, the perforated pattern on the mask plate is evenly distributed in four groups.

[0014] The above technical solution allows four sets of cutout patterns to correspond to four lenses. The four sets of cutout patterns can be the same or different patterns to meet customer needs.

[0015] Furthermore, pin holes are distributed on both sides of the cover plate, the mask plate, the positioning plate, and the bottom plate.

[0016] Using the above technical solution, pins on both sides are first inserted into the base plate to guide and position the placement of the positioning plate and mask plate.

[0017] Furthermore, screw holes are distributed around the top cover plate, the mask plate, the positioning plate, and the bottom plate.

[0018] With the above technical solution, screws are first inserted and fixed on the base plate, and then tightened after the top cover plate is pressed on.

[0019] Based on the above-mentioned technical problems, this utility model also provides a second technical solution: a tray suitable for optical glass coating fixtures, the tray including a base and a wall, the base having a plurality of mounting slots, the mounting slots being suitable for placing the above-mentioned optical glass coating fixtures, and the wall having symmetrical slots on both sides for connecting rotating shafts.

[0020] Through the above technical solution, the tray can simultaneously support more optical glass for coating. Furthermore, the coating equipment can rotate the tray, allowing coating vapor from the vacuum coating equipment to fall onto the optical glass from all sides, embedding the perforated pattern and forming a pattern on the surface of the optical glass.

[0021] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model can improve the coating quality of optical glass through the positioning plate and the mask plate; the smooth fixture reduces the contamination or adsorption of vapor with coating material, so that the vapor with coating material is adsorbed on the optical glass as much as possible, thereby improving the coating quality; the installation of four optical glasses improves the utilization efficiency of the fixture; and the tray carries more optical glass coatings to provide high coating efficiency. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the upper cover plate structure;

[0024] Figure 2 This is a schematic diagram of the mask structure;

[0025] Figure 3 This is a schematic diagram of the positioning plate structure;

[0026] Figure 4 This is a schematic diagram of the base plate structure;

[0027] Figure 5 This is a schematic diagram of the actual lens;

[0028] Figure 6 This is a schematic diagram of the actual tray.

[0029] In the diagram, 1 is the top cover plate; 11 is the slot; 2 is the mask plate; 21 is the hollow pattern; 3 is the positioning plate; 31 is the positioning groove; 4 is the bottom plate; 41 is the placement groove; 5 is the optical glass; 51 is the arc part; 52 is the flat bottom; 6 is the pin hole; and 7 is the screw hole. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] Example 1

[0032] like Figure 1 - Figure 5 As shown in Embodiment 1, an optical glass coating fixture includes, from top to bottom, an upper cover plate 1, a mask plate 2, a positioning plate 3, and a base plate 4. Optical glass 5 is disposed on the base plate 4, and the positioning plate 3 is used to position the optical glass 5. The mask plate 2 is placed above the positioning plate 3 and has a perforated pattern 21 facing the optical glass 5 to form a coating pattern. The upper cover plate 1 is used to connect with and press the optical glass 5, the positioning plate 3, and the mask plate 2 together to form a single unit.

[0033] In this embodiment 1, the top cover plate 1, mask plate 2, positioning plate 3, and bottom plate 4 are all treated with a cleaning process similar to semiconductor etching. The fixture surface left after etching is clean, without residues or contaminants, which is beneficial for subsequent coating processes.

[0034] The optical glass 5 can be a lens, prism, mirror, etc. In this embodiment 1, the optical glass 5 is exemplified by a lens.

[0035] Based on the above, the lens in this embodiment 1 has a horizontal cross-section, which has an arc portion 51 and a flat bottom 52. Accordingly, the upper cover plate 1, the positioning plate 3, and the bottom plate 4 are respectively provided with slots 11, positioning grooves 31, and placement grooves 41, all having the same shape as the horizontal cross-section. Each slot 11, positioning groove 31, and placement groove 41 has an arc portion 51 and a flat bottom 52. The flat bottom 52 is suitable for positioning the placement direction of the convex lens, and the convex lens, slot 11, positioning groove 31, and placement groove 41 are located on the same vertical central axis and are stacked neatly.

[0036] To increase the number of lenses coated, four slots 11 are evenly distributed on the top cover plate 1, four positioning slots 31 are evenly distributed on the positioning plate 3, and four placement slots 41 are evenly distributed on the bottom plate 4. Four sets of perforated patterns 21 are evenly distributed on the mask plate 2. Thus, one set of clamps can hold four lenses. In this embodiment 1, the pattern on the mask plate 2 is a center indicator.

[0037] Based on the above, pin holes 6 are distributed on both sides of the upper cover plate 1, mask plate 2, positioning plate 3, and bottom plate 4 for installing pins. Screw holes 7 are distributed around the upper cover plate 1, mask plate 2, positioning plate 3, and bottom plate 4 for installing screws and tightening.

[0038] The operating principle of this embodiment 1 is as follows: First, lay the base plate 4 flat and insert pins on both sides. Then, place four lenses into the placement groove 41 of the base plate 4. When placing them, align the flat bottom 52 of the lens with the flat bottom 52 of the placement groove 41. Then, align the positioning plate 3 with the pins, ensuring that the flat bottom 52 of the positioning groove 31 is aligned with the flat bottom 52 of the placement groove 41 of the base plate 4. Because the lens has a certain thickness, the positioning groove 31 fits snugly against the lens wall, preventing the lens from moving back and forth or left and right. Then, place the mask plate 2 on the lens, ensuring that the cutout pattern 21 faces the lens. Finally, close the top cover plate 1 and tighten the screws around it to secure the top cover plate 1 and the base plate 4 clamp.

[0039] Example 2

[0040] Example 2 discloses a tray suitable for optical glass coating fixtures, such as Figure 6 As shown, the tray includes a base and walls. The base has several mounting slots suitable for placing optical glass coating fixtures. The walls have symmetrically positioned slots for connecting rotating shafts. Example 2 allows for the simultaneous coating of more than fifty lenses.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No markings in the claims should be construed as limiting the scope of the claims.

Claims

1. An optical glass coating fixture, comprising, from top to bottom, an upper cover plate (1), a mask plate (2), a positioning plate (3), and a base plate (4), characterized in that, Optical glass (5) is disposed on the base plate (4), the positioning plate (3) is used to position the optical glass (5), the mask plate (2) is provided with a hollow pattern (21), the hollow pattern (21) is facing the optical glass (5), and the upper cover plate (1) is used to connect with the base plate (4) and press the optical glass (5), the positioning plate (3) and the mask plate (2).

2. The optical glass coating fixture according to claim 1, characterized in that, The optical glass (5) has a horizontal cross-section, which has an arc portion (51) and a flat bottom (52). The upper cover plate (1), the positioning plate (3), and the bottom plate (4) are respectively provided with a slot (11), a positioning groove (31), and a placement groove (41) with the same shape as the horizontal cross-section. The slot (11), the positioning groove (31), and the placement groove (41) are all provided with an arc portion (51) and a flat bottom (52). The flat bottom (52) is suitable for positioning the placement direction of the convex lens. The convex lens, the slot (11), the positioning groove (31), and the placement groove (41) are located on the same vertical central axis.

3. The optical glass coating fixture according to claim 2, characterized in that, The upper cover plate (1) has four slots (11) evenly distributed; the positioning plate (3) has four positioning grooves (31) evenly distributed; and the bottom plate (4) has four placement grooves (41) evenly distributed.

4. The optical glass coating fixture according to claim 3, characterized in that, The perforated pattern (21) on the mask plate (2) is evenly distributed in four groups.

5. The optical glass coating fixture according to claim 1, characterized in that, Pin holes (6) are distributed on both sides of the cover plate, the mask plate (2), the positioning plate (3) and the bottom plate (4).

6. The optical glass coating fixture according to claim 5, characterized in that, Screw holes (7) are distributed around the top cover plate (1), the mask plate (2), the positioning plate (3) and the bottom plate (4).

7. A tray suitable for optical glass coating fixtures, characterized in that, The tray includes a base and a wall. The base has several mounting slots, which are suitable for placing the optical glass (5) coating fixture as described in any one of claims 1 to 6. The wall has symmetrical slots on both sides for connecting the rotating shaft.

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