Regional optical coating fixture

Abstract

The utility model provides a regional optical coating fixture which comprises a clamping plate, the clamping plate comprises a first end face and a second end face which are opposite to each other, the first end face of the clamping plate is provided with a clamping groove used for placing an optical element, and the clamping groove is provided with a coating hole used for evaporation; the connecting rod is arranged on the first end face of the clamping plate, and the connecting rod penetrates through the film coating hole and extends to the side, provided with the second end face, of the clamping plate; and the baffle is connected with the connecting rod in a relatively movable manner, and the baffle is connected to the part, located on the side, provided with the second end face, of the clamping plate, of the connecting rod. According to the regional optical coating fixture, the baffle plate can be arranged on one side of the second end surface through the connecting rod, so that direct contact between the baffle plate and an optical element is avoided, and the polished surface of the optical element is protected from being damaged.

Description

Technical Field

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

[0002] The coating requirements for optical components are a crucial technical specification, necessitating the use of fixtures to position and stabilize them during the coating process. As demand for optical components increases, so too do the coating requirements. Existing optical components do not require full coating of the entire surface. This is especially true for optical components with through-holes, which require shielding during the coating process to prevent coating from forming inside the through-holes.

[0003] In existing technology, through-holes in optical components are typically shielded using items such as baffles. During the coating process, the baffles are placed on the optical component to block the through-holes. After coating, the baffles' own weight and other factors can cause marks on the optical component where they come into contact, affecting the quality of the finished optical component. Utility Model Content

[0004] The utility model provides a regional optical coating fixture, which is used to solve the problem in the prior art that the optical element is marked with a mark due to the gravity of the baffle itself.

[0005] The utility model provides a regional optical coating fixture, comprising:

[0006] A card board, the card board comprising a first end face and a second end face opposite to each other, the first end face of the card board being provided with a card slot for placing an optical element, the card slot being provided with a coating hole for evaporation;

[0007] a connecting rod, the connecting rod being provided on the first end surface of the card plate, and the connecting rod extending through the coating hole to the side of the card plate where the second end surface is provided;

[0008] A baffle is connected to the connecting rod so as to be relatively movably connected, and the baffle is connected to a portion of the connecting rod located on a side of the clamping plate where the second end surface is provided.

[0009] According to a regional optical coating fixture provided by the present invention, the regional optical coating fixture further includes a first connecting block, the first connecting block is arranged on the first end surface, and the connecting rod is connected to the first connecting block so as to be relatively movably.

[0010] According to a regional optical coating fixture provided by the present invention, a slide groove is provided on the first end surface, and the first connecting block is arranged in the slide groove and is connected to the clamping plate in a relatively slidable manner.

[0011] According to a regional optical coating fixture provided by the present invention, the first connecting block is provided with a plurality of mounting positions along a direction perpendicular to the first end face, and the connecting rod is connected to one of the plurality of mounting positions.

[0012] According to a regional optical coating fixture provided by the utility model, the connecting rod includes a first rod segment, a second connecting block and a second rod segment, the first rod segment is connected to the first end face on the clamping plate, the first rod segment is connected to the second rod segment through the second connecting block, and the second rod segment is passed through the coating hole.

[0013] According to a regional optical coating fixture provided by the present invention, the second connecting block is provided with a plurality of connecting holes, and the plurality of connecting holes are provided on a plurality of different sides of the second connecting block, and the plurality of connecting holes are used to connect the first rod segment with the second rod segment.

[0014] According to a regional optical coating fixture provided by the present invention, the connecting rod includes a first rod segment and a second rod segment, and the first rod segment and the second rod segment are connected and fixed so as to be rotatable relative to each other.

[0015] According to the regional optical coating fixture provided by the present invention, a take-in and put-out hole is further provided on the card plate along the edge of the card slot.

[0016] According to the regional optical coating fixture provided by the utility model, the connecting rod is threadedly connected to the first connecting block.

[0017] According to the regional optical coating fixture provided by the present invention, the distance between the baffle and the optical element in the slot is less than 0.5 mm.

[0018] The utility model provides a regional optical coating fixture. A connecting rod is provided on a fixture plate and inserted into a coating hole. After being installed on a first end surface, a portion of the connecting rod can still be located on one side of a second end surface. A baffle is connected to the portion of the connecting rod located on one side of the second end surface, enabling the baffle to block the second end surface. Because the baffle is connected via the connecting rod and provides support, the baffle's own weight is offset by the connecting rod, thereby resolving the problem of the baffle imprinting on optical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the regional optical coating fixture provided by the utility model.

[0021] Figure 2 This is a schematic diagram of the regional optical coating fixture and optical elements provided by the present invention after assembly.

[0022] Figure 3 This is a cross-sectional view of the regional optical coating fixture and optical element provided by the utility model after assembly.

[0023] Figure 4 It is an exploded view of the connecting rod provided by the utility model.

[0024] Figure 5 It is a schematic diagram of the optical element provided by the utility model.

[0025] Reference numerals:

[0026] 1. Card plate; 11. First end surface; 12. Second end surface; 13. Card slot; 14. Coating hole; 15. Slide slot; 16. Pick-up and drop hole;

[0027] 2. Connecting rod; 21. First rod segment; 22. Second connecting block; 23. Second rod segment;

[0028] 3. Baffle;

[0029] 4. First connection block;

[0030] 5. Optical components. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] The following combination Figure 1The present invention describes a regional optical coating fixture, comprising: a card board 1, a connecting rod 2, and a baffle 3. The card board 1 includes a first end face 11 and a second end face 12. The first end face 11 of the card board 1 defines a card slot 13 for placing an optical element 5, and the card slot 13 defines a coating hole 14 for evaporation. The connecting rod 2 is provided on the first end face 11 of the card board 1 and extends through the coating hole 14 to the second end face 12. The baffle 3 is connected to the connecting rod 2 so as to be relatively movably connected. The baffle 3 is connected to the portion of the connecting rod 2 located on one side of the second end face 12.

[0033] Please refer to Figure 1 and Figure 2 In this embodiment, the card board 1 is a flat plate. The card board 1 is mainly used to provide a flat mounting surface so that the optical element 5 can be placed on the card board 1. In this embodiment, a card slot 13 is provided on the card board 1. The shape and size of the card slot 13 correspond to the shape and size of the optical element 5 to be coated, so that the optical element 5 to be coated can be placed exactly in the card slot 13. The optical element 5 to be coated is in contact with the inner wall of the card slot 13 (without considering tolerances). The optical element 5 to be coated is limited by the card slot 13. Therefore, during the coating process, the optical element 5 to be coated is limited by the card slot 13, which can prevent the optical element 5 to be coated from shaking and keep the optical element 5 to be coated stable.

[0034] Because the coating material needs to be evaporated onto the optical element 5 during the coating process, there must be no obstruction between the optical element 5 to be coated and the coating material. In this embodiment, a coating hole 14 is provided in the card slot 13, and the coating hole 14 is a through hole. After the optical element 5 to be coated is placed in the card slot 13, the bottom of the optical element 5 to be coated contacts the coating material through the coating hole 14, thereby completing the coating. Therefore, the optical element 5 to be coated is placed in the card slot 13 with the polished surface facing the coating hole 14.

[0035] Furthermore, the shape of the coating hole 14 corresponds to the shape of the area on the optical element 5 that needs to be coated, and the area of ​​the coating hole 14 corresponds to the area of ​​the area on the optical element 5 that needs to be coated, so that only the area on the optical element 5 that needs to be coated is coated, and no additional coating area is generated.

[0036] Please refer to Figure 1 and Figure 2In this embodiment, the first end face 11 is above the card board 1, and the second end face 12 is below the card board 1. After the optical element 5 to be coated is placed in the card slot 13 of the first end face 11, the optical element 5 in the card slot 13 is coated upward from the side of the second end face 12 below. Therefore, in this embodiment, the connecting rod 2 is installed on the first end face 11, and then the connecting rod 2 passes through the coating hole 14 so that the connecting rod 2 is partially located on the side of the card board 1 where the second end face 12 is provided. Then the baffle 3 is installed on the connecting rod 2 on the same side as the second end face 12, so that the baffle 3 can be used to block the area of ​​the optical element 5 that does not need to be coated during the coating process. And the baffle 3 can move relative to the connecting rod 2, so that the baffle 3 can move along the connecting rod 2 to a suitable distance from the optical element 5.

[0037] like Figure 5 As shown, the optical element 5 targeted by the present invention is a special optical element 5 with a through hole. Because the through hole of the optical element 5 is opened in the coating area of ​​the optical element 5, the through hole position needs to be shielded during the coating process to prevent the through hole from being coated.

[0038] Therefore, the assembly process of the regional optical coating fixture and the optical element 5 provided in this embodiment includes the following steps: first, the optical element 5 to be coated is placed in the card slot 13. At this time, the coating area of ​​the optical element 5 to be coated is aligned with the coating hole 14, and the through hole of the optical element 5 is also aligned with the coating hole 14. Then, the connecting rod 2 is passed through the through hole and the coating hole 14 of the optical element 5, so that the connecting rod 2 has a portion located on the first end face 11 side and a portion located on the second end face 12 side. After passing through, the connecting rod 2 is connected to the first end face 11 to maintain the stability of the connecting rod 2. Then, the baffle 3 is aligned with the non-coating area of ​​the optical element 5, and the baffle 3 is connected to the portion of the connecting rod 2 located on the second end face 12 side, so that the non-coating area of ​​the optical element 5 is shielded by the baffle 3.

[0039] In the present invention, the connecting rod 2 is installed on the upper first end face 11 by extending from the top through the interior of the optical element 5 and the coating hole 14 to the bottom, thereby avoiding unnecessary obstruction of the coating area by the connecting rod 2. Because the connecting rod 2 needs to extend to the through-hole position in the coating area, when the connecting rod 2 extends from the installation position to the through-hole position, the connecting rod 2 will pass through the coating area, thereby obstructing the coating area. In this embodiment, by arranging the connecting rod 2 at the top and then passing through the optical element 5, the situation in which the connecting rod 2 causes unnecessary obstruction of the coating area is avoided. Then, the baffle 3 is installed through the connecting rod 2, so that the connecting rod 2 provides a supporting force to offset the gravity of the baffle 3, thereby solving the problem of jamming caused by the contact between the baffle 3 and the optical element 5.

[0040] In one embodiment, the regional optical coating fixture further includes a first connecting block 4, which is disposed on the first end surface 11, and the connecting rod 2 is movably connected to the first connecting block 4. In one embodiment, the connecting rod 2 is threadedly connected to the first connecting block 4.

[0041] like Figure 1 As shown, a first connecting block 4 is provided on the first end surface 11 near the slot 13. Because the first connecting block 4 is used to mount the connecting rod 2, placing the first connecting block 4 near the slot 13 can shorten the distance between the first connecting block 4 and the optical element 5, thereby shortening the length of the connecting rod 2. Furthermore, because the through-holes of different optical elements 5 are located in different positions, the connecting rod 2 and the first connecting block 4 are connected to each other in a relatively movable manner in this embodiment. This allows the position of the connecting rod 2 to be adjusted according to the actual position of the through-holes when facing different optical elements 5.

[0042] Furthermore, in this embodiment, a threaded connection is used between the connecting rod 2 and the first connecting block 4. Because the threaded connection can keep the connecting rod 2 and the first connecting block 4 relatively stable, in the absence of external force driving or when the external force driving direction is wrong, it can be ensured that the connecting rod 2 will not be relatively displaced after being connected to the first connecting block 4. Then, when it is necessary to adjust the position of the connecting rod 2, it is only necessary to rotate the connecting rod 2, and the relative position between the connecting rod 2 and the first connecting block 4 can be adjusted through threaded transmission. Because the first connecting block 4 and the card plate 1 remain relatively fixed, and the optical element 5 and the card plate 1 remain relatively fixed, the relative position between the connecting rod 2 and the first connecting block 4 can be adjusted, that is, the relative position between the connecting rod 2 and the optical element 5 can be adjusted. And the use of a threaded connection can also make the movement of the connecting rod 2 more stable and the movement of the connecting rod 2 more precise.

[0043] In one embodiment, a sliding groove 15 is formed on the first end surface 11 , and the first connecting block 4 is disposed in the sliding groove 15 and is connected to the clamping plate 1 in a relatively slidable manner.

[0044] like Figure 1 As shown, the slide groove 15 is formed on the side of the first end surface 11 near the latch groove 13, which can also shorten the distance between the first connecting block 4 and the optical element 5, thereby shortening the length of the connecting rod 2. The first connecting block 4 is then slidably connected within the slide groove 15, so that the sliding of the first connecting block 4 drives the connecting rod 2 to slide together, and the relative position of the connecting rod 2 is further adjusted. In this embodiment, the first connecting block 4 drives the connecting rod 2 to slide together, further improving the applicability of the entire device.

[0045] In one embodiment, the first connecting block 4 is provided with a plurality of mounting positions along a direction perpendicular to the first end surface 11 , and the connecting rod 2 is connected to one of the plurality of mounting positions.

[0046] like Figure 1 As shown, in this embodiment, the connecting rod 2 is mounted via the first connecting block 4. Different optical elements 5 have different heights along a direction perpendicular to the first end face 11, i.e., along the height direction. This, in turn, results in different heights of the through-holes in the optical elements 5. In this embodiment, the first connecting block 4 is provided with multiple mounting positions along the height direction. Each mounting position has a different height, and the connecting rod 2 is mounted and connected to one of these multiple mounting positions. When faced with optical elements 5 of varying heights, a mounting position corresponding to the actual through-hole height can be selected on the first connecting block 4, and the connecting rod 2 can then be installed in the selected mounting position corresponding to the selected height.

[0047] In this embodiment, the applicability of the entire device is improved by providing multiple mounting positions on the first connecting block 4. In addition to being provided along a direction perpendicular to the first end face 11, multiple mounting positions can also be provided on the first connecting block 4 in different directions in different embodiments.

[0048] In one embodiment, the connecting rod 2 includes a first rod segment 21, a second connecting block 22 and a second rod segment 23. The first rod segment 21 is connected to the first end surface 11 on the card plate 1. The first rod segment 21 is connected to the second rod segment 23 through the second connecting block 22. The second rod segment 23 is passed through the coating hole 14.

[0049] Please refer to Figures 1 to 4 In this embodiment, the connecting rod 2 adopts a segmented structure. Because the connecting rod 2 needs to be mounted on the first end surface 11 and then pass through the first end surface 11 to the side with the second end surface 12, the connecting rod 2 needs to be bent. In this embodiment, the connecting rod 2 is divided into a first rod segment 21 and a second rod segment 23. The first rod segment 21 and the second rod segment 23 are then connected to each other at the bend via a second connecting block 22.

[0050] During the assembly process, the second connecting block 22 is first mounted on the first rod segment 21, and then the first rod segment 21 is mounted on the first end surface 11 and inserted into the through hole of the optical element 5. The second rod segment 23 is then inserted into the through hole of the optical element 5 from the second end surface 12 and connected to the second connecting block 22, thereby completing the assembly of the connecting rod 2.

[0051] The segmented structure of the connecting rod 2 provided in this embodiment can make the connecting rod 2 more flexible during assembly and more convenient to assemble with the optical element 5 .

[0052] In one embodiment, the second connecting block 22 is provided with a plurality of connecting holes 24 . The plurality of connecting holes 24 are provided on different sides of the second connecting block 22 . The plurality of connecting holes 24 are used to connect the first rod segment 21 with the second rod segment 23 .

[0053] Please refer to Figure 4 The first rod segment 21 and the second rod segment 23 are connected to the second connecting block 22 by being inserted into different connecting holes 24 of the second connecting block 22. In this embodiment, the through-holes of the optical element 5 are arranged obliquely, so the second connecting block 22 has a connecting hole 24 in each of the two corresponding directions, so that after the first rod segment 21 and the second rod segment 23 are connected, they can pass through the through-holes of the optical element 5. The figure in this embodiment shows two connecting holes 24, but in reality, the second connecting block 22 has connecting holes 24 on different sides. Therefore, when the connecting rod 2 faces different through-holes on different optical elements 5, the first rod segment 21 and the second rod segment 23 are installed in different connecting holes 24 respectively, so that the connecting rod 2 can pass through the through-holes when facing different directions.

[0054] In this embodiment, by providing connection holes 24 on different sides of the second connection block 22 , the first rod segment 21 and the second rod segment 23 can be connected in different connection holes 24 , thereby combining different bending directions between the first rod segment 21 and the second rod segment 23 .

[0055] In one embodiment, the connecting rod 2 includes a first rod segment 21 and a second rod segment 23 , and the first rod segment 21 and the second rod segment 23 are connected and fixed to each other so as to be rotatable relative to each other.

[0056] In this embodiment, the first and second rod segments 21 and 23 are directly connected, using a hinge (not shown). Because the friction within the hinge is sufficiently strong, the first and second rod segments 21 and 23 can remain relatively stationary after being connected. External force can then be applied to rotate the first and second rod segments 21 and 23 to adjust the angle between them. Once adjusted, the friction within the hinge keeps the first and second rod segments 21 and 23 stationary in the absence of external forces.

[0057] like Figure 3 As shown, when the through hole of the optical element 5 is at the current tilt angle, the connecting rod 2 can pass through. However, when the tilt angle of the through hole of the optical element 5 changes, the first rod segment 21 and the second rod segment 23 may abut against the inner wall of the through hole and fail to connect with each other, resulting in the connecting rod 2 being unable to pass through the through hole. In this embodiment, the first rod segment 21 and the second rod segment 23 are connected by a hinge. When the tilt angle of the through hole changes, the angle between the first rod segment 21 and the second rod segment 23 can be adjusted by rotating the first rod segment 21 or the second rod segment 23 so that the bending angle of the first rod segment 21 and the second rod segment 23 corresponds to the tilt angle of the through hole, and the connecting rod 2 can then pass through the through hole.

[0058] In this embodiment, the first rod segment 21 and the second rod segment 23 are connected by a hinge, so that the angle between the first rod segment 21 and the second rod segment 23 can be adjusted to accommodate through holes of different angles.

[0059] In one embodiment, a take-in / out hole 16 is further provided on the card board 1 along the edge of the card slot 13. In one embodiment, the distance between the baffle 3 and the optical element 5 in the card slot 13 is less than 0.5 mm.

[0060] like Figure 1 As shown, in this embodiment, the bottom surface of the optical element 5 is rectangular, so the slot 13 is also a corresponding rectangular slot, with a retrieval hole 16 defined at each of the four corners of the slot 13. Because the optical element 5 fits snugly within the slot 13 and fits snugly against the inner wall of the slot 13, the gap between the optical element 5 and the slot 13 is small, making it difficult to remove the optical element 5. In this embodiment, the retrieval holes 16 are defined along the edges of the slot 13, connecting the retrieval holes 16 to the slot 13. This allows the optical element 5 within the slot 13 to be retrieved through the gap provided by the retrieval holes 16.

[0061] Furthermore, when installing the baffle 3, the baffle 3 is installed at a distance of 50.5 mm from the optical element, so that the baffle 3 does not contact the optical element 5 while reducing the distance between the baffle 3 and the optical element 5, thereby preventing the coating material from entering the non-coating area through the gap.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A regional optical coating fixture, characterized in that: include: A card board (1), the card board (1) comprising a first end surface (11) and a second end surface (12) opposite to each other, the first end surface (11) of the card board (1) being provided with a card slot (13) for placing an optical element (5), the card slot (13) being provided with a coating hole (14) for evaporation; a connecting rod (2), the connecting rod (2) being provided on the first end surface (11) of the card plate (1), and the connecting rod (2) passing through the coating hole (14) and extending to a side of the card plate (1) provided with the second end surface (12); A baffle (3) is connected to the connecting rod (2) in a relatively movably manner, and the baffle (3) is connected to a portion of the connecting rod (2) located on a side of the clamping plate (1) provided with the second end surface (12).

2. The regional optical coating fixture according to claim 1, characterized in that: The regional optical coating fixture further comprises a first connecting block (4), the first connecting block (4) being arranged on the first end surface (11), and the connecting rod (2) and the first connecting block (4) being connected in a relatively movably manner.

3. The regional optical coating fixture according to claim 2, characterized in that: The first end surface (11) is provided with a sliding groove (15), and the first connecting block (4) is arranged in the sliding groove (15) and is connected to the clamping plate (1) in a relatively slidable manner.

4. The regional optical coating fixture according to claim 2, characterized in that: Along a direction perpendicular to the first end surface (11), the first connecting block (4) is provided with a plurality of mounting positions, and the connecting rod (2) is connected to one of the plurality of mounting positions.

5. The regional optical coating fixture according to claim 1, characterized in that: The connecting rod (2) comprises a first rod segment (21), a second connecting block (22) and a second rod segment (23); the first rod segment (21) is connected to the first end surface (11) on the clamping plate (1); the first rod segment (21) is connected to the second rod segment (23) via the second connecting block (22); and the second rod segment (23) is passed through the coating hole (14).

6. The regional optical coating fixture according to claim 5, characterized in that: The second connecting block (22) is provided with a plurality of connecting holes (24), the plurality of connecting holes (24) being provided on a plurality of different side surfaces of the second connecting block (22), and the plurality of connecting holes (24) being used to connect the first rod segment (21) with the second rod segment (23).

7. The regional optical coating fixture according to claim 1, characterized in that: The connecting rod (2) comprises a first rod segment (21) and a second rod segment (23); the first rod segment (21) and the second rod segment (23) are connected and fixed in a relatively rotatable manner.

8. The regional optical coating fixture according to claim 1, characterized in that: Along the edge of the card slot (13), a take-in / out hole (16) is also provided on the card plate (1).

9. The regional optical coating fixture according to claim 2, characterized in that: The connecting rod (2) is threadedly connected to the first connecting block (4).

10. The regional optical coating fixture according to claim 1, characterized in that: The distance between the baffle (3) and the optical element (5) in the slot (13) is less than 0.5 mm.

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