阅读说明：本技术 镀膜治具及镀膜伞具 (Film coating jig and film coating umbrella ) 是由 吕留芳 林茂剑 周慧平 李明 于 2021-03-11 设计创作，主要内容包括：一种镀膜治具,包括第一板和第二板,所述第一板上设置有多个第一通孔,所述第二板上设置有多个与所述第一通孔对应的第二通孔,所述第一通孔和所述第二通孔共同构成定位孔,所述第一板和第二板形状相适配,所述第一板的长宽比为1.03～1.17,所述定位孔在所述镀膜治具上交错排列。本发明还提供一种镀膜伞具。所述镀膜治具和所述镀膜伞具能有效提升镀膜效率。(The utility model provides a coating jig, includes first board and second board, be provided with a plurality of first through-holes on the first board, be provided with a plurality of on the second board with the second through-hole that first through-hole corresponds, first through-hole with the second through-hole constitutes the locating hole jointly, first board and second board shape looks adaptation, the aspect ratio of first board is 1.03 ~ 1.17, the locating hole is in staggered arrangement on the coating jig. The invention also provides a film-coated umbrella. The coating jig and the coating umbrella can effectively improve the coating efficiency.)

1. A coating jig comprises a first plate and a second plate, wherein a plurality of first through holes are formed in the first plate, a plurality of second through holes corresponding to the first through holes are formed in the second plate, and the first through holes and the second through holes jointly form positioning holes.

2. The plating jig of claim 1, wherein the array of positioning holes comprises a plurality of rows arranged in a first direction and columns arranged in a second direction, the first direction being parallel to the first side of the first plate, the second direction forming an acute angle with the first side.

3. The coating fixture according to claim 1, wherein at least one positioning hole intersects with a circumferentially adjacent positioning hole.

4. The coating fixture according to claim 1, wherein an intersection line exists between the first through holes or between the second through holes, and a thickness of the thinnest portion of the other side of the first plate or the second plate from the intersection line along the optical axis direction is 1.4mm to 1.5 mm.

5. A film-coating umbrella provided with a plurality of jig fixing holes, wherein each jig fixing hole is used for fixing the film-coating jig of any one of claims 1 to 4, and the length-width ratio of the jig fixing hole is 1.03-1.27.

6. The coated umbrella of claim 5, wherein the coated umbrella has a fan shape with a central angle of 36 to 40 degrees.

7. The coated umbrella of claim 6, wherein the ratio of the width of the proximal shaft end of the coated umbrella to the width and length of the fixture fixing hole is 1:1: 1.15.

8. The coated umbrella of claim 7, wherein the arrangement of the fixture fixing holes comprises: the coating umbrella comprises a first line, a second line and a third line which are sequentially arranged from the shaft end to the direction far away from the shaft center, wherein the number of the first jig fixing holes of the first line is one, the number of the second line and the third line are two, the width directions of the jig fixing holes of the first line and the second line are perpendicular to the angular bisector of the coating umbrella, and the width direction of the jig fixing holes of the third line is parallel to the angular bisector of the coating umbrella.

9. The coated umbrella of claim 8, wherein the arrangement of fixture fixing holes further comprises a fourth row and a fifth row sequentially disposed on a side of the third row away from the axis, the number of fixture fixing holes in the fourth row is three, the number of fixture fixing holes in the fifth row is three, and the arrangement directions of the fixture fixing holes in the fourth row and the fifth row are the same as the third row.

10. The coated umbrella of claim 8, wherein the arrangement of fixture fixing holes further comprises a fourth row and a fifth row sequentially disposed on a side of the third row away from the axis, the number of fixture fixing holes in the fourth row is three, the number of fixture fixing holes in the fifth row is four, and the arrangement directions of the fixture fixing holes in the fourth row and the fifth row are the same as the first row.

11. The coated umbrella of claim 8, wherein the arrangement of fixture fixing holes further comprises a fourth row and a fifth row sequentially disposed on a side of the third row away from the axis, the number of fixture fixing holes of the fourth row is three, the number of fixture fixing holes of the fifth row is four, the arrangement direction of the fixture fixing holes of the fourth row is the same as that of the third row, and the arrangement direction of the fixture fixing holes of the fifth row is the same as that of the first row.

Technical Field

The invention relates to the technical field of lens coating equipment, in particular to a coating jig and a coating umbrella.

Background

At present, with the development of science and technology, optical lenses have been widely applied to the technical fields of digital cameras, mobile phones, projectors, video cameras, and the like, and optical lenses need to ensure higher purity, transparency, uniformity, and the like in the production process, and various methods are adopted in the industry to manufacture optical lenses to meet the demands of the market on optical lenses with different specifications. Generally, the coating process is one of the important steps in the subsequent processing, and the coating refers to coating a single layer or multiple layers of thin films on the surface of an optical element by a physical or chemical method, and using the interference effect generated by incident, reflected and transmitted light rays at the interface of the thin films to achieve the effects of focusing, collimating, filtering, reflecting and refracting.

Due to the large demand for optical lenses, mass production is often required to meet the demand for optical lenses in order to reduce cost and improve efficiency. When manufacturing lenses in batch, how to effectively improve the batch production efficiency is a goal of the industry to pursue consistent efforts. The existing two common coating umbrellas OTFC1800 coating umbrella and OTFC1550 coating umbrella have long coating jig, are easy to bend and shake, and have low utilization rate and few lenses processed at one time.

Disclosure of Invention

In view of the above, a need exists for a film coating jig and a film coating umbrella, which can effectively improve the film coating efficiency.

The utility model provides a coating jig, includes first board and second board, be provided with a plurality of first through-holes on the first board, be provided with a plurality of on the second board with the second through-hole that first through-hole corresponds, first through-hole with the second through-hole constitutes the locating hole jointly, first board and second board shape looks adaptation, the aspect ratio of first board is 1.03 ~ 1.17, the locating hole is in staggered arrangement on the coating jig.

The locating holes are staggered, the gaps among the locating holes can be fully utilized, and therefore the locating holes are arranged as many as possible.

In a further embodiment, the array of alignment holes comprises a plurality of rows aligned in a first direction parallel to the first side of the first plate and columns aligned in a second direction at an acute angle to the first side. The arrangement can make full use of the gap between the positioning holes, so that the positioning holes are arranged as many as possible.

In a further embodiment, at least one of the positioning holes forms an intersection with a circumferentially adjacent positioning hole. The distance between the axes of the positioning holes can be reduced by the arrangement, so that the positioning holes are arranged on the panel as many as possible.

In a further embodiment, each of the first through holes and the second through holes has an isosceles trapezoid cross section, a side close to the second board and combined with the first board is a short side of the isosceles trapezoid, and a side far away from the second board and combined with the first board is a long side of the isosceles trapezoid. The isosceles trapezoid design is favorable for fully exposing the effective film coating surface of the lens.

In a further embodiment, there is an intersection line between the first through holes or between the second through holes, and the thickness from the intersection line to the thinnest point of the other side of the first plate or the second plate along the optical axis direction is 1.4mm to 1.5 mm. So set up and enable the structural stability that can also guarantee coating film tool under the prerequisite that coating film tool satisfies the quantity maximize of locating hole has ensured coating film tool's shaping yield.

In a further embodiment, a fool-proof structure is arranged on one side of the coating jig and used for limiting the installation direction of the coating jig. Fool-proof structure can effectively avoid the wrong direction of installation, promotes assembly efficiency.

In a further embodiment, a side of the second plate facing the first plate is provided with a boss structure protruding from the periphery of the second through hole. The boss structure is deeply positioned, so that the lens can be effectively prevented from inclining and jumping in the positioning hole, the lens is more stable in the coating jig, and the coating yield is improved.

In a further embodiment, the height of the boss structure in a direction perpendicular to the second plate is 0.12-0.18 mm. So set up boss structure can ensure that the boss stretches into in the first through-hole, can also reduce the spaciousness in the locating hole when improving first board through-hole degree of depth, can guarantee the lens is stable fix in the first through-hole, can effectively avoid tearing open the dish in-process because the shake leads to the lens to jump out from the locating hole, nevertheless close the dish back lens spaciousness in the through-hole axial great, lead to the lens to rock, slope in the locating hole.

In a further embodiment, the distance between the side of the lens close to the second plate and the side of the second plate facing the first plate is 0.01 mm-0.05 mm. So set up and can effectively avoid the lens to be pressed by the coating film tool and receive the damage.

In a further embodiment, the difference between the minimum diameter of the positioning hole and the diameter of the lens is 0.04-0.06 mm. So set up and can effectively avoid lens and locating hole pore wall to interfere and receive the damage.

A film coating umbrella is provided with a plurality of jig fixing holes, each jig fixing hole is used for fixing the film coating jig, and the length-width ratio of each jig fixing hole is 1.03-1.27. The aspect ratio setting can effectively improve the utilization rate of the film coating umbrella and set up as many fixture fixing holes as possible, thereby improving the film coating efficiency.

In a further embodiment, the coated umbrella is in a sector shape, and the included angle of the sector shape is 35-42 degrees. According to the arrangement, the utilization rate of the film coating umbrella can be effectively improved, and as many jig fixing holes as possible are arranged, so that the film coating efficiency is improved. If the angle is too small, the number of the coating umbrella sectors required to be loaded in the same coating machine is too large, and if the angle is too large, the number of the coating jigs loaded on the single-sector coating umbrella is too large, the quality is too large, and the loading is difficult.

In a further embodiment, the ratio of the width of the near-shaft end of the film-coated umbrella to the width and the length of the jig fixing hole is 1:1: 1.15. According to the arrangement, the utilization rate of the film coating umbrella can be effectively improved, and as many jig fixing holes as possible are arranged, so that the film coating efficiency is improved.

In a further embodiment, the arrangement of the jig fixing holes includes: the coating umbrella comprises a first line, a second line, a third line and a fourth line which are sequentially arranged from the shaft end near the coating umbrella to the direction far away from the shaft center, wherein the number of first jig fixing holes of the first line is one, the number of jig fixing holes of the second line and the number of jig fixing holes of the third line are two, the width directions of the jig fixing holes of the first line and the second line are perpendicular to the angular bisector of the coating umbrella, and the width direction of the jig fixing holes of the third line is parallel to the angular bisector of the coating umbrella. According to the umbrella, the utilization rate of the single fan of the umbrella can be effectively improved, the structural strength and the shape of the umbrella are maintained, and meanwhile, as many fixture fixing holes as possible can be formed, so that the film coating efficiency is improved.

In a further embodiment, the arrangement of the jig fixing holes further includes a fourth row and a fifth row sequentially disposed on a side of the third row away from the axis, the number of the jig fixing holes of the fourth row is three, the number of the jig fixing holes of the fifth row is three, and the arrangement directions of the jig fixing holes of the fourth row and the jig fixing holes of the fifth row are the same as the third row. According to the umbrella, the utilization rate of the single fan of the umbrella can be effectively improved, the structural strength and the shape of the umbrella are maintained, and meanwhile, as many fixture fixing holes as possible can be formed, so that the film coating efficiency is improved.

In a further embodiment, the arrangement of the jig fixing holes further includes a fourth row and a fifth row sequentially disposed on a side of the third row away from the axis, the number of the jig fixing holes of the fourth row is three, the number of the jig fixing holes of the fifth row is four, and the arrangement directions of the jig fixing holes of the fourth row and the jig fixing holes of the fifth row are the same as the arrangement direction of the jig fixing holes of the first row. According to the umbrella, the utilization rate of the single fan of the umbrella can be effectively improved, the structural strength and the shape of the umbrella are maintained, and meanwhile, as many fixture fixing holes as possible can be formed, so that the film coating efficiency is improved.

In a further embodiment, the arrangement of the jig fixing holes further includes a fourth row and a fifth row which are sequentially disposed on one side of the third row away from the axis, the number of the jig fixing holes in the fourth row is three, the number of the jig fixing holes in the fifth row is four, the arrangement direction of the jig fixing holes in the fourth row is the same as that of the third row, and the arrangement direction of the jig fixing holes in the fifth row is the same as that of the first row. According to the umbrella, the utilization rate of the single fan of the umbrella can be effectively improved, the structural strength and the shape of the umbrella are maintained, and meanwhile, as many fixture fixing holes as possible can be formed, so that the film coating efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a conventional film-coated umbrella.

Fig. 2 is a schematic structural diagram of a conventional coating jig.

Fig. 3a is a schematic structural diagram of a film-coated umbrella according to a first embodiment of the present invention.

Fig. 3b is a schematic structural diagram of a film-coated umbrella according to a second embodiment of the present invention.

Fig. 3c is a schematic structural diagram of a film-coated umbrella according to a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a coating fixture according to a first embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a coating fixture according to a second embodiment of the present invention.

Fig. 6a is a schematic structural diagram of a first side of a first plate according to an embodiment of the present invention.

Fig. 6b is a schematic view of the structure of the second side of the first plate shown in fig. 6 a.

Fig. 7a is a sectional view along a-a of the first plate shown in fig. 6a and 6 b.

Fig. 7B is a partially enlarged view of a portion B of fig. 7 a.

Fig. 8a is a schematic structural diagram of a third side of a second plate according to an embodiment of the present invention.

Fig. 8b is a schematic view of a fourth side of the second plate shown in fig. 8 a.

Fig. 9a is a sectional view along a-a of the second plate shown in fig. 8a and 8 b.

Fig. 9B is a partially enlarged view of a portion B of fig. 9 a.

Fig. 10a is a cross-sectional structural view of a coating fixture according to a third embodiment of the present invention.

Fig. 10b is a partial enlarged view of fig. 10 a.

Description of the main elements

Film-coated umbrella 1,90

Jig fixing hole 10

Coating jig 2,92

Main body 20

Locating hole 200,920

Fixing structure 201

First side 202

First plate 21

First via 210

First portion 2100

Second part 2101

First side 211

Second side 212

First edge 213

Second plate 23

Second via 230

Third side 231

Fourth side 232

Second edge 233

Boss structure 234

Lens 3 to be coated

Void 921

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The term "vertical" and similar expressions are used herein for illustrative purposes only. The terms "first" and "second" are used merely for distinguishing between element names and do not denote any order.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. The embodiments of the present invention are described in detail with reference to the drawings, and for convenience of illustration, the drawings showing the partial structure of the device are not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention.

The coating jig in the embodiment of the invention is used for fixing the optical lens to coat the optical lens. Each film coating jig is provided with a plurality of positioning holes, and each film coating umbrella is provided with a plurality of film coating jigs, so that the film coating operation of a plurality of optical lenses can be realized at one time.

The existing film coating jig is mostly rectangular, and the film coating space of the film coating umbrella is not utilized to the maximum extent. Please refer to fig. 1 and 2, which are schematic structural views of a conventional film-coating umbrella and a film-coating fixture disposed on the film-coating umbrella. The coating umbrella 90 is approximately fan-shaped, and a plurality of rectangular coating jigs 92 are arranged on the coating umbrella 90. Rectangular coating film tool is because length is great, and the back of moulding plastics is crooked easily, and easy deformation after toasting is held easily and is shaken. As can be seen from the figure, a plurality of blank areas on the film-coated umbrella 90 are not fully utilized. The coating jig 92 is provided with a plurality of positioning holes 920 arranged in a rectangular array, and as can be seen from the figure, gaps 921 between four adjacent positioning holes 920 are not well utilized.

The coating jig provided by the embodiment of the invention adopts the square shape with the preset length-width ratio, the length value is relatively small, the positioning holes on the square coating jig are arranged in a staggered manner, the gaps between the adjacent positioning holes are fully utilized, and the distance between the axes of the adjacent positioning holes is reduced, so that the space of the coating jig is utilized to the maximum extent, and the space utilization rate of the coating umbrella can also be improved by the arrangement of the square coating jig on the coating umbrella.

The following describes the coating jig and the coating umbrella in further detail with reference to the accompanying drawings.

Please refer to fig. 3a, fig. 3b, fig. 3c and fig. 4, which are schematic structural diagrams of a coating umbrella 1 and a coating fixture 2 according to an embodiment of the present invention. The film-coated umbrella 1 is approximately fan-shaped. Usually, a plurality of film coating umbrellas are arranged in the film coating equipment, and in order to maximize the utilization of space, the fan-shaped design is convenient for the arrangement and combination of the plurality of film coating umbrellas into a circle and is convenient for rotation control during film coating. In the embodiment shown in fig. 3a, the coated umbrella 1 has an axis O, and when the coated umbrellas 1 are enclosed into a circle, the coated umbrellas 1 have a common axis O and can rotate around the axis O.

In some embodiments, the central angle of the fan shape of the coated umbrella 1 can be 36 to 40 degrees, such as 38 degrees as shown in fig. 3 a. The angle setting can effectively improve the utilization rate of the film coating umbrella 1, and the jig fixing holes are arranged as many as possible, so that the film coating efficiency is improved. If the angle is too small, the number of the coating umbrella sectors required to be loaded in the same coating machine is too large, the maximization of the number of the coating jigs assembled on the coating umbrella sectors is not facilitated, and if the angle is too large, the number of the coating jigs loaded on the single-sector coating umbrella sectors is too large, the quality is too large, and the loading is not easy.

The coating umbrella 1 is provided with a plurality of jig fixing holes 10, the jig fixing holes 10 are matched with the coating jigs 2 in shape, and each jig fixing hole 10 is used for fixing one coating jig 2. Each jig fixing hole 10 is substantially square, the length of the jig fixing hole 10 may be 90.1cm to 106.1cm, the width may be 83.6cm to 87.5cm, and the aspect ratio of the jig fixing hole 10 is 1.03 to 1.27. The arrangement can effectively improve the space utilization rate of the film coating umbrella 1, and the jig fixing holes 10 are arranged as many as possible.

In some embodiments, the ratio of the width w of the coating umbrella 1 at the near shaft end to the width and the length of the jig fixing hole is 1:1: 1.15. For example, the width w of the proximal shaft of the film-coated umbrella 1 can be 86cm, the width of the jig fixing hole can be 86.5cm, and the length can be 99 cm. The coating umbrella can effectively improve the utilization rate of the coating umbrella, and the fixture fixing holes are arranged as many as possible, so that the coating efficiency is improved.

In a further embodiment, the arrangement of the jig fixing holes 10 includes: the coating umbrella comprises a first row, a second row and a third row which are sequentially arranged from the shaft end near the coating umbrella 1 to the direction far away from the shaft center O, wherein the number of the first jig fixing holes 10 in the first row is one, the number of the second row and the third row is two, the width directions of the first row and the second row of jig fixing holes 10 are perpendicular to the angular bisector OO 'of the coating umbrella 1, and the width direction of the third row of jig fixing holes 10 is parallel to the angular bisector OO' of the coating umbrella 1. According to the arrangement, the utilization rate of the single fan of the umbrella can be effectively improved, the structural strength and the shape of the umbrella are maintained, and meanwhile, the jig fixing holes 10 can be arranged as many as possible, so that the film coating efficiency is improved. In the embodiment shown in fig. 3a, 5 rows including a first row 11, a second row 12, a third row 13, a fourth row 14, and a fifth row 15 are arranged in this order from the proximal end toward the direction away from the axial center O. The number of the first fixture fixing holes 10 in the first row is 1, the number of the fixture fixing holes 10 in the second row and the third row is 2, the number of the fixture fixing holes 10 in the fourth row is 3, the number of the fixture fixing holes 10 in the fifth row is 3, the width directions of the fixture fixing holes 10 in the first row and the second row are perpendicular to the angular bisector OO ' of the coating umbrella 1, the width directions of the fixture fixing holes 10 in the third row and the fourth row are parallel to the angular bisector OO ' of the coating umbrella 1, the arrangement directions of the fixture fixing holes 10 in the fifth row are the same as those in the first row, that is, the width directions of the fixture fixing holes 10 in the fifth row are perpendicular to the angular bisector OO ' of the coating umbrella 1.

In the embodiment shown in fig. 3b, 6 rows are arranged in order from the proximal end to the direction away from the axis O, including a first row 11, a second row 12, a third row 13, a fourth row 14, a fifth row 15 and a 6 th row 16. The number of the first fixture fixing holes 10 in the first row 11 is 1, the number of the fixture fixing holes 10 in the second row 12 and the third row 13 is 2, the number of the fixture fixing holes 10 in the fourth row 14 is 3, and the number of the fixture fixing holes 10 in the fifth row 15 and the number of the fixture fixing holes 10 in the 6 th row 16 are 4 and 5 respectively. The width directions of the jig fixing holes 10 of the first row 11 and the second row 12 are perpendicular to an angular bisector OO ' of the coating umbrella 1, the width directions of the jig fixing holes 10 of the third row 13 and the fourth row 14 are parallel to the angular bisector OO ' of the coating umbrella 1, and the arrangement directions of the jig fixing holes 10 of the fifth row 15 and the sixth row 16 are the same as the first row 11, that is, the width directions of the jig fixing holes 10 of the fifth row 15 and the sixth row 16 are perpendicular to the angular bisector OO ' of the coating umbrella 1.

In the embodiment shown in fig. 3c, 6 rows are arranged in order from the proximal end to the direction away from the axial center, including a first row 11, a second row 12, a third row 13, a fourth row 14, a fifth row 15, and a 6 th row 16. The number of the first fixture fixing holes 10 in the first row 11 is 1, the number of the fixture fixing holes 10 in the second row 12 and the third row 13 is 2, the number of the fixture fixing holes 10 in the fourth row 14 is 3, and the number of the fixture fixing holes 10 in the fifth row 15 and the 6 th row 16 are 4. The width directions of the jig fixing holes 10 of the first row 11 and the second row 12 are perpendicular to the angular bisector OO' of the film-coated umbrella 1, the width direction of the jig fixing holes 10 of the third row 13 is parallel to the angular bisector OO' of the film-coated umbrella 1, the width direction of the fourth row 14 of jig fixing holes 10 is perpendicular to the angular bisector OO' of the film-coated umbrella 1 (i.e. the same direction as the arrangement direction of the first row 11 of jig fixing holes 10), the arrangement direction of the fifth row 15 of jig fixing holes 10 is the same as the arrangement direction of the first row 11, namely, the width direction of the jig fixing holes 10 of the fifth row 15 is vertical to the angular bisector OO' of the film coating umbrella 1, in the jig fixing holes 10 of the sixth row 16, the width directions of the two jig fixing holes 10 close to the left side and the right side are parallel to the angular bisector OO 'of the film-coating umbrella 1, and the width directions of the two jig fixing holes 10 in the middle are perpendicular to the angular bisector OO' of the film-coating umbrella 1. Thus, compared with the embodiment shown in fig. 3b, fig. 3c has one fewer fixture fixing holes 10, and the interval between the fixture fixing holes 10 is increased, which is beneficial to enhancing the structural strength of the film-coated umbrella 1.

In the embodiment shown in fig. 3a, the coating umbrella 1 can accommodate 11 jig fixing holes 10, in the embodiment shown in fig. 3b, the coating umbrella 1 can accommodate 17 jig fixing holes 10, in the embodiment shown in fig. 3c, the coating umbrella 1 can accommodate 16 jig fixing holes 10, and in the coating umbrella 90 shown in fig. 1, only 11 jig fixing holes can be accommodated, the size of the coating umbrella 90 shown in fig. 1 is substantially the same as that of fig. 3b and 3c, and the size of the coating umbrella 90 shown in fig. 3a is relatively small (the radius of the sector shown in fig. 3a is smaller than that of fig. 3b and 3 c). Therefore, under the same size, the coating umbrella 1 provided by the embodiment of the application can be provided with more jig fixing holes 10, so that more coating jigs 2 can be borne and fixed.

Referring to fig. 4, the coating jigs 2 are substantially square, and it can be seen from the figure that the square coating jigs 2 are connected with each other, so that the gap between the coating jigs 2 is reduced, and the space utilization rate of the coating umbrella 1 is improved.

In some embodiments, the length of the coating jig 2 may range from 90cm to 106cm, and the width may range from 83.5cm to 87.5 cm. The length-width ratio of the coating jig 2 is 1.03-1.17. Through the arrangement of the proportion range, the number of the coating jigs 2 arranged on the coating umbrella 1 and the number of the lens fixing holes arranged on the coating jigs 2 can be further increased. For example, in the embodiment shown in fig. 4, the coating jig 2 has a length of 98cm and a width of 85.5cm, and the number of lens fixing holes that can be formed in the coating jig is 144.

Referring to fig. 4 to 9b, each of the coating jigs 2 includes a main body 20 and a plurality of positioning holes 200 disposed on the main body 20. The main body 20 includes a first plate 21 and a second plate 23 matched with each other, the first plate 21 is provided with a plurality of first through holes 210, the second plate 23 is provided with a plurality of second through holes 230 corresponding to the first through holes 210, and the first through holes 210 and the second through holes 230 together form the positioning hole 200. The positioning holes 200 are staggered on the main body 20 of the coating jig 2. The staggered arrangement reduces the clearance between the positioning holes 200 and improves the space utilization rate of the coating jig 2.

In a preferred embodiment, the positioning holes 200 are uniformly distributed on the main body 20, so as to fully utilize the coating space on the main body 20.

In the embodiment shown in fig. 4, the positioning holes 200 are arranged on the coating jig 2 in a staggered manner, wherein a part of the positioning hole 200 is disposed in a gap between two adjacent positioning holes 200, so that the gap between the positioning holes 200 is fully utilized, and the space utilization rate of the coating jig 2 is improved.

In the embodiment shown in fig. 5, an intersection line is formed between adjacent positioning holes 200, that is, adjacent positioning holes 200 are partially overlapped to form an intersection line l between two adjacent fixing holes. So set up, effectively reduced the space between the locating hole 200, the interval between the adjacent locating hole 200 is dwindled to effectively promote coating film tool 2's space utilization. It is understood that, in some embodiments, the first plate 21 and the second plate 23 are provided with fixing structures for fixing the first plate 21 and the second plate 23, and the positioning holes 200 may be disposed around the fixing structures to ensure that the fixing structures are not occupied and the coating space of the main body 20 is distributed as full as possible. In the embodiment shown in fig. 4 and 5, the first plate 21 and the second plate 23 are provided with fixing structures 201 (e.g., fixing holes and fixing posts) at the centers thereof, and the positioning holes 200 are arranged around the fixing structures 201. It is understood that in other embodiments, the fixing structures 201 are not limited to the embodiment shown in fig. 4, and may be disposed at any other suitable position, one or more fixing structures may be disposed, the positioning holes 200 may be arranged around the fixing structures to form one or more positioning hole 200 clusters, and at least one positioning hole 200 has an intersection line l with the surrounding adjacent positioning hole 200.

In some embodiments, the positioning holes 200 are uniformly arranged to form a row-column array, the array comprising a plurality of rows arranged along a first direction a parallel to the first side edge 202 of the first plate 21 and columns arranged along a second direction b at an acute angle to the first side edge 202. Compared with the existing matrix arrangement, the gap between the positioning holes 200 can be better utilized.

Please refer to fig. 6a and fig. 6b, which are schematic structural diagrams of a first side and a second side of a first plate according to an embodiment of the present invention. The first plate 21 comprises a first side 211 joined to the second plate 23 and a second side 212 facing away from the first side 211. The first through hole 210 penetrates the first side 211 and the second side 212, and has an inner diameter gradually increasing from the first side 211 to the second side 212. The second plate 23 comprises a third side 231 joined to the first plate 21 and a fourth side 232 facing away from the third side 231. The second through hole 230 penetrates the third side 231 and the fourth side 232, and the inner diameter thereof gradually increases from the third side 231 to the fourth side 232. Please refer to fig. 7a-7b and fig. 9a-9b, which are schematic cross-sectional views of a first plate 21 and a second plate 23 according to an embodiment of the present invention. Each of the first through hole 210 and the second through hole 230 is shaped like a horn, and the cross section of the inner sidewall thereof is shaped like an isosceles trapezoid, the shorter side of the isosceles trapezoid is close to the first side 211 and the third side 231, and the longer side of the isosceles trapezoid is close to the second side 212 and the fourth side 232. The flared arrangement ensures that the effective coating surface of the lens sandwiched between the first plate 21 and the second plate 23 is sufficiently exposed for coating.

The positioning holes 200 are arranged on the main body 20, when the positioning holes 200 are maximally arranged, an intersection line exists between adjacent positioning holes 200, and at this time, it is further required to ensure that the flared end of each positioning hole 200 (the inner side wall of the first through hole 210 close to the second side 212, and the inner side wall of the second through hole 230 close to the fourth side 232) is not broken, and to achieve this effect, the thickness from the intersection line to the thinnest part of the other side of the first plate 21 or the second plate 23 along the optical axis direction is 1.4mm to 1.5 mm. So set up and enable coating jig 2 can also guarantee coating jig 2's structural stability under the prerequisite of the quantity maximize that coating jig 2 satisfies locating hole 200, has ensured coating jig 2's shaping yield.

In order to provide as many positioning holes 200 as possible on the main body 20, the inclination angle of the isosceles trapezoid should be as small as possible, however, in order to sufficiently expose the effective coating surface of the lens to be coated, the inclination angle of the inclined side of the isosceles trapezoid to the central axis of the positioning hole 200 should be as large as possible. In order to achieve the best balance, in the embodiment of the present application, it is preferable that an included angle between two oblique sides of the isosceles trapezoid is set to be 85 degrees to 90 degrees.

Current coating jig adopts the basin structure, and the basin structure is unfavorable for firm centre gripping to treat the coating film lens in the hole out-of-round that easily leads to the locating hole when the coating jig shaping, and the coating jig that this application embodiment provided does not set up the basin structure, treat that the effective coating film face of coating film lens passes through the horn mouth of locating hole 200 exposes.

In some embodiments, four side edges of the first plate 21 extend out of four first edges 213 from the second side 212 to a direction away from the first side 211, four side edges of the second plate 23 extend out of four second edges 233 from the fourth side 232 to a direction away from the third side 231, and a distal end surface (an end surface away from a side where the first plate 21 and the second plate 23 are combined) of each of the first edges 213 and the second edges 233 is not provided with a notch, so that the dustproof effect can be achieved when multiple sets of lens-mounted film-coating jigs are stacked and baked.

When installing the lens to be coated to the coated umbrella 1, the lens 3 to be coated is first placed on the side of the first plate 21 facing the second plate 23, and the area to be coated of the lens is exposed through the first through hole 210. Then, the second plate 23 is covered on the first plate 21, and the second through holes 230 are in one-to-one correspondence with the first through holes 210. The first plate 21 and the second plate 23 are then fixed. For example, bolts or the like are inserted through fixing holes provided at four corners of the first plate 21 and the second plate 23 to fix the lens 3 to be coated between the first plate 21 and the second plate 23. And finally, installing the film coating jig 2 into the jig fixing hole of the film coating umbrella 1.

In order to prevent the first plate 21 and the second plate 23 from being pressed against the lens 3 to be coated when the first plate 21 and the second plate 23 are closed, the minimum distance d1 between the first plate 21 and the second plate 23 (i.e. the distance between the end surface of the first plate 21 facing the second plate 23 and the end surface of the second plate 23 facing the first plate 21) is slightly larger than the thickness of the lens 3 to be coated. It will be appreciated that the minimum distance d1 between the first plate 21 and the second plate 23 can be designed according to the thickness of the lens 3 to be coated.

In some embodiments, the first through hole 210 of the base plate 21 comprises a first portion 2100 and a second portion 2101, wherein the first portion 2100 has a bell-mouth structure (i.e., the inner sidewall interface has an isosceles trapezoid structure), and the inner diameter thereof gradually decreases from a direction away from the second plate 23 to a direction close to the second plate 23. The second portion 2101 is a straight cylindrical structure having an inner diameter that is constant from an end near the first portion 2100 to an end near the second plate 23. This arrangement facilitates the attachment of lenses with thinner edges. The height d2 of the second portion 2101 in the direction of the optical axis is 0.05mm to 0.1 mm.

In some embodiments, referring to fig. 10b, in order to prevent the second plate 23 from pressing the lens 3 to be coated, when the lens 3 to be coated is clamped between the first plate 21 and the second plate 23, a distance d3 between a side of the second plate 23 close to the first plate 21 and a side of the second plate 23 facing the first plate 21 may be set to be 0.01mm to 0.05 mm). The distance d4 between the outer edge of the lens 3 to be coated and the inner wall of the positioning hole 200 can be 0.02-0.03mm (i.e. the difference between the minimum diameter of the first through hole 210 and the diameter of the lens is 0.04-0.06 mm).

In some embodiments, the coating fixture 2 is used for coating a lens with a thickness greater than or equal to 0.6mm, and a convex structure is not required to be arranged on the second plate 23.

In some embodiments, when the coating jig 2 is used for coating a lens with a thickness less than 0.6mm, in order to prevent the lens from coming out of the positioning hole 200, a boss structure is protruded on the periphery of the second through hole 230 at a side of the second plate 23 facing the first plate 21. The boss structure is deeply positioned, so that the lens can be effectively prevented from inclining and jumping in the positioning hole 200, the lens is more stable in the coating jig 2, and the coating yield is improved.

Fig. 9a to 9b are schematic cross-sectional views of another coating jig 2 with a boss structure according to an embodiment of the present invention. A boss structure 234 is formed on the third side 231 of the second plate 23 and extends toward the first plate 21. The height of the boss 234 in the direction perpendicular to the second plate 23 is 0.12-0.18 mm. The boss structure 234 highly designs and can ensure that the boss stretches into in the first through-hole 210, can also reduce the spaciousness in the locating hole 200 when improving the degree of depth of first through-hole 210, can guarantee that the lens is stable to be fixed in the first through-hole 210, can effectively avoid tearing open the dish in-process and lead to the lens to jump out owing to the shake, can guarantee again that coating jig 2 discoiled the back, the lens can not jump out from locating hole 200 easily, but close a dish back lens spaciousness is great in the through-hole axial, leads to the lens to rock, slope in locating hole 200. The boss 234 is an annular protrusion disposed around the second through hole 230. It is understood that, in some embodiments, the boss 234 may be two or more protrusions spaced apart from each other and evenly distributed along the outer edge of the second through hole 230. The distance between the end face of the boss 234 close to the first plate 21 and the end face of the first plate 21 facing the second plate 23 can be set to 0.01 mm-0.05 mm, so as to prevent the lens 3 to be coated from being pressed.

It is understood that, in some embodiments, the first plate 21 may also be provided with a boss structure, and the boss structure provided on the first plate 21 may be similar to the boss structure 234, which is not described herein. When the first plate 21 and the second plate 23 are both provided with the boss structures, the distance between the end surface of the boss structure arranged on the first plate 21, which is close to the boss structure 234, and the end surface of the boss structure 234, which faces the first plate 21, can be set to be 0.01 mm-0.05 mm, so that the lens 3 to be coated is prevented from being pressed.

In some embodiments, at least one side of the coating fixture 2 is provided with a fool-proof structure, and the fool-proof structure is used for limiting the installation direction of the coating fixture 2. Therefore, when the film plating jig 2 is arranged in the jig fixing hole 10 of the film plating umbrella 1, the installation direction is not wrong. The fool-proof structure can be a bulge or a groove and other structures arranged on the edge of the coating jig 2. The fool-proof structure can be matched with a corresponding structure on the film-coating umbrella 1 so as to fix the film-coating jig 2 in the jig fixing hole 10. In an embodiment, one of the edges 213 of the first plate 21 of the coating jig 2 has a different structure from the other three edges 213, and correspondingly, the structure of the jig fixing hole 10 engaged with the coating jig 2 is also adapted to the structure of the first plate 21, so that when the first plate 21 is mounted in the jig fixing hole 10 of the coating umbrella 1, since only one edge of the first plate 21 can engage with the sidewall corresponding to the jig fixing hole 10, the coating jig 2 can only be mounted in the jig fixing hole 10 along one direction, thereby effectively avoiding unnecessary damage caused by a wrong mounting direction.