Film coating clamp for concentric double-cylindrical optical filter and assembly method of film coating clamp

Abstract

The invention belongs to the field of optical filter film coating clamps, and particularly relates to a film coating clamp for a concentric bicylindrical optical filter and an assembling method of the film coating clamp, and the film coating clamp comprises a concentric bicylindrical optical filter substrate (1), a slide glass disc (2) and a supporting base (3); a cylindrical hole site (4) is arranged in the middle area of the slide glass disc (2); a circular ring column (5) is arranged on the support base (3) corresponding to the cylindrical hole site (4); a threaded hole (6) is formed in the edge area of the slide glass disc (2); positioning holes (7) are formed in the positions, corresponding to the threaded holes (6), of the supporting base (3); and the supporting base (3) is fixedly connected with the slide tray (2) through the positioning holes (7) and the threaded holes (6). According to the device, a mechanical device can be conveniently embedded into a hole site and is supported and conveyed, identification and judgment in the conveying direction are facilitated, on the premise that effective supporting is achieved, the film falling phenomenon of a coating film can be effectively controlled, the probability of scratching a substrate is greatly reduced, and coating of concentric double-cylinder optical filter products is facilitated.

Description

Technical Field

[0001] The invention belongs to the field of filter coating fixtures, and in particular relates to a coating fixture for a concentric double-cylindrical filter and an assembly method thereof. Background Art

[0002] During the preparation of the filter, the transparent substrate needs to be coated. The process is to place the filter substrate in the coating fixture, and then place the fixture in the rotating platform of the coating machine for coating via a conveyor. There are many filter coating fixtures on the market, most of which are square or circular filters and prism filters. For example, the patent number CN 209352786U is a stable square coating fixture. For example, the patent number CN 206538466U is a large-size circular thin film fixture. For example, the patent number CN212175046 U is a prism coating fixture. However, for the coating fixture of concentric double cylindrical filters, no inventions or invention patents with similar structures and related papers have been found. Summary of the invention

[0003] The present invention aims to overcome the shortcomings of the prior art and provide a coating fixture for concentric double cylindrical filters. It has good support stability, is convenient for the mechanical device to be embedded in the hole and to support and transmit, is conducive to identification and judgment in the transmission direction, and can effectively control the film shedding phenomenon of the coating on the premise of achieving effective support, greatly reducing the probability of scratching the substrate, and facilitating the coating of the concentric double cylindrical filter product.

[0004] Another object of the present invention is to provide an assembly method for a concentric double-cylindrical filter coating fixture.

[0005] To solve the above technical problems, the present invention is achieved as follows: A coating fixture for a concentric double cylindrical filter comprises a concentric double cylindrical filter substrate, a carrier plate and a support base; a cylindrical hole is provided in the middle area of ​​the carrier plate; a circular ring column is provided on the support base at a position corresponding to the cylindrical hole; the concentric double cylindrical filter substrate is vertically placed in the cylindrical hole in the carrier plate, and then supported by the circular ring column of the support base; a threaded hole is provided in the edge area of ​​the carrier plate; a positioning hole is provided on the support base at a position corresponding to the threaded hole; the support base is fixedly connected to the carrier plate via the positioning hole and the threaded hole.

[0006] Furthermore, a direction identification notch is provided on the lateral side of the outer circle of the wafer carrier.

[0007] Furthermore, a limiting edge is laterally arranged on the outer circle of the wafer carrier support base.

[0008] Furthermore, an annular supporting hole is provided at the bottom of the supporting base.

[0009] Furthermore, the number of the annular supporting holes is 3, and they are arranged in a triangle.

[0010] The assembly method of the above-mentioned concentric double cylindrical filter coating fixture includes the following steps: vertically placing the concentric double cylindrical filter substrate into the cylindrical hole in the carrier plate; then supporting the support base through the circular ring column of the support base, and finally locking and vertically fixing it from top to bottom through the positioning hole of the support base and the threaded hole of the carrier plate by means of threaded nails.

[0011] Compared with the prior art, the present invention has the following characteristics: (1) The present invention proposes to design a coating fixture for a concentric double cylindrical filter, and the purpose of facilitating the coating of the concentric double cylindrical filter product is achieved through the mechanical fixture device.

[0012] (2) The annular support holes can ensure that the contact area of ​​the rear surface of the substrate is reduced while achieving effective support, greatly reducing the probability of scratching the substrate compared to the overall supporting surface.

[0013] (3) The three annular support holes form a triangular shape, which has good support stability and is convenient for mechanical devices to be embedded in the holes for support and transmission. The number of holes in different directions is different, which is convenient for identification and judgment in the transmission direction.

[0014] (4) The positioning holes of the support base and the threaded holes of the carrier plate are locked by screws, which not only meets the convenience of screw alignment and positioning, but also can effectively tighten the threads.

[0015] (5) Tighten the screws from the positioning hole of the support base to the threaded hole of the carrier plate to ensure that the screw cap is on one side of the support base and not on the coating surface. Therefore, the phenomenon of easy film falling caused by the screw cap on the upper side can be effectively reduced.

[0016] (6) The direction identification notch is used to facilitate identification of the transmission direction.

[0017] (7) The limiting edges can facilitate the identification and fixation of the fixture in the right direction to prevent shaking.

[0018] (8) Innovative structure of the carrier plate, concentric double cylindrical filter substrate, and support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. The protection scope of the present invention is not limited to the following description.

[0020] Figure 1 It is a schematic diagram of the overall assembly of the present invention; Figure 2 It is a cross-sectional view of a concentric double-cylindrical filter substrate of the present invention; Figure 3 A top view of the wafer carrier of the present invention; Figure 4 It is a front cross-sectional view of the wafer carrier of the present invention; Figure 5 A top view of the support base of the present invention; Figure 6 It is a front cross-sectional view of the support base of the present invention.

[0021] In the figure: 1. Concentric double cylindrical filter substrate; 2. Carrying plate; 3. Support base; 4. Cylindrical hole; 5. Ring column; 6. Threaded hole; 7. Positioning hole; 8. Direction identification notch; 9. Limiting edge; 10. Annular support hole; 11. Support edge; 12. Edge protective chamfer. DETAILED DESCRIPTION

[0022] The following is combined with Figures 1 to 6 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be a central component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] See also Figures 1 to 6As shown, a coating fixture for concentric double cylindrical filters comprises a concentric double cylindrical filter substrate 1, a carrier plate 2 and a support base 3; a cylindrical hole 4 is provided in the middle area of ​​the carrier plate 2; a circular column 5 is provided on the support base 3 at a position corresponding to the cylindrical hole 4; the concentric double cylindrical filter substrate 1 is vertically placed in the cylindrical hole 4 in the carrier plate 2, and then supported by the circular column 5 of the support base 3; a threaded hole 6 is provided in the edge area of ​​the carrier plate 2; a positioning hole 7 is provided on the support base 3 at a position corresponding to the threaded hole 6; the support base 3 is fixedly connected to the carrier plate 2 through the positioning hole 7 and the threaded hole 6. In the present invention, a direction identification notch 8 is provided on the side of the outer aid of the carrier plate 2. In the present invention, a limiting edge 9 is provided on the outer aid of the carrier plate 2 support base 3 in the horizontal direction. In the present invention, an annular support hole 10 is provided at the bottom of the support base 3. The number of the annular support holes 10 in the present invention is 3, and they are arranged in a triangle.

[0024] like Figure 1 As shown, it is a schematic diagram of the assembly of the concentric double-cylindrical filter substrate, which includes a concentric double-cylindrical filter substrate 1, a carrier plate 2, and a support base 3. The concentric double-cylindrical filter substrate 1 is vertically placed in the cylindrical hole 4 in the carrier plate 2, and then supported by the circular column 5 of the support base 3, and finally locked and fixed vertically from top to bottom by screws through the positioning hole 7 of the support base 3 and the threaded hole 6 of the carrier plate 2, and the assembly can be completed.

[0025] like Figure 2 As shown in the figure, it is a front cross-sectional view of the substrate of the concentric double cylindrical filter. Figure 3 The figure shows a top view of the carrier plate 2. It includes a double cylindrical hole 4, a threaded hole 6, a direction identification notch 8, a limiting edge 9 and a supporting edge 11. The double cylindrical hole 4 is used to place the concentric double cylindrical filter substrate 1, the threaded hole 6 is used for the screw to lock and fix vertically from top to bottom, the direction identification notch 8 is used to facilitate the identification of the transmission direction, and the limiting edge 9 can fix the fixture in the direction to prevent shaking. The supporting edge 11 is used to support and fix the position of the film holder. Figure 4 As shown in FIG. 2 , it is a front cross-sectional view of the wafer carrier plate 2. Figure 5 As shown, it is a top view of the support base 3. It includes a circular column 5, a positioning hole 7, an annular support hole 10, a limiting edge 9, and an edge protection chamfer 12. The circular column 5 supports the concentric double cylindrical filter substrate 1, the positioning hole 7 is used for the screw to lock and fix vertically from top to bottom, and the supporting annular support hole 10 is used for the mechanical device to be embedded in the hole position and support and transport. The limiting edge 9 can fix the fixture in direction to prevent shaking. The edge protection chamfer 12 is used to prevent scratches during contact.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concentric double cylindrical filter coating fixture, characterized in that: The invention comprises a concentric double-cylindrical filter substrate (1), a carrier plate (2) and a support base (3); a cylindrical hole (4) is provided in the middle region of the carrier plate (2); a circular ring column (5) is provided on the support base (3) at a position corresponding to the cylindrical hole (4); the concentric double-cylindrical filter substrate (1) is vertically inserted into the cylindrical hole (4) in the carrier plate (2), and then supported by the circular ring column (5) of the support base (3); a threaded hole (6) is provided in the edge region of the carrier plate (2); a positioning hole (7) is provided on the support base (3) at a position corresponding to the threaded hole (6); the support base (3) is fixedly connected to the carrier plate (2) via the positioning hole (7) and the threaded hole (6).

2. The concentric double cylindrical filter coating fixture according to claim 1, characterized in that: A direction identification notch (8) is provided on the side of the outer circle of the wafer carrier plate (2).

3. The concentric double cylindrical filter coating fixture according to claim 2, characterized in that: Limiting edges (9) are provided transversely on the outer circumferences of the wafer carrier plate (2) and the supporting base (3).

4. The concentric double cylindrical filter coating fixture according to claim 3, characterized in that: An annular supporting hole (10) is provided at the bottom of the supporting base (3).

5. The concentric double cylindrical filter coating fixture according to claim 4, characterized in that: The number of the annular support holes (10) is 3, and they are arranged in a triangle.

6. A method for assembling the concentric double-cylindrical filter coating fixture as claimed in claims 1 to 6, characterized in that: The method comprises the following steps: vertically placing a concentric double-cylindrical filter substrate (1) into a cylindrical hole (4) in a carrier plate (2); supporting the support base (3) by means of a circular ring column (5) of the support base (3); and finally locking and vertically fixing the support base (3) from top to bottom by means of a screw through a positioning hole (7) of the support base (3) and a threaded hole (6) of the carrier plate (2).

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