CN211227306U - Optical lens piece coating machine - Google Patents
Optical lens piece coating machine Download PDFInfo
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- CN211227306U CN211227306U CN201922385745.5U CN201922385745U CN211227306U CN 211227306 U CN211227306 U CN 211227306U CN 201922385745 U CN201922385745 U CN 201922385745U CN 211227306 U CN211227306 U CN 211227306U
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- lens
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- vacuum chamber
- disc
- adjusting rod
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Abstract
The utility model discloses an optical lens coating machine, including real empty room (4), put evaporation boat (3), lens mounting disc (1) that correspond with evaporation boat (3) in real empty room (4), its characterized in that: the lens mounting disc (1) is mounted at the lower end of the height adjusting rod (2), and the upper end of the height adjusting rod (2) is mounted at the top of the inner cavity of the vacuum chamber (4); the space between the lens mounting disc (1) and the evaporation boat (3) is adjusted by adjusting the mounting position of the lens mounting disc (1) relative to the height adjusting rod (2). The utility model discloses a connect altitude mixture control pole on the peg of lens mounting disc, realize the adjustability of lens mounting disc mounted position, can suitably reduce the mounting height of lens mounting disc when needs, shorten the distance between lens mounting disc and the evaporation boat, under the prerequisite of ensureing coating film homogeneity and coating film quality, shorten the coating film time, improve coating film efficiency, suitable using widely.
Description
Technical Field
The utility model relates to the technical field of optical lens piece coating equipment, in particular to an optical lens piece coating machine which coats an optical film layer on a lens base material to form an optical lens piece.
Background
An optical lens coating machine in the prior art generally comprises a lens mounting disc, an evaporation boat, a vacuum chamber and the like, wherein the lens mounting disc is fixedly mounted at the top of an inner cavity of the vacuum chamber through a hanging rod, the evaporation boat is arranged at the bottom of the vacuum chamber, the distance between the lens mounting disc and the evaporation boat is fixed and cannot be adjusted, a coating material in the evaporation boat is heated, evaporated and upwards diffused during coating, when the lens mounting disc contacts a lens substrate on the lens mounting disc, an optical film is formed on the surface of the lens substrate, because the higher the concentration of the vaporized film material at the position closer to the evaporation boat is, the faster the coating speed is, but the problem of uneven film growth easily occurs at the same time, in order to ensure the uniformity of coating, the lens mounting disc is usually arranged at the position farther from the evaporation boat, so that uniform films can be coated when different coating materials and coating processes are adopted, but the, the film coating efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an optical lens coating machine for coating an optical film layer on a lens base material to form an optical lens aiming at the problems in the prior art; this optical lens coating machine can adjust the interval between lens mounting disc and the evaporation boat as required, under the prerequisite of guaranteeing coating film homogeneity and coating film quality, shortens the coating film time, improves coating film efficiency.
The utility model aims at solving through the following technical scheme:
the utility model provides an optical lens coating machine, includes real empty room, has placed the evaporation boat in real empty room, the lens mounting disc that corresponds with the evaporation boat, its characterized in that: the lens mounting disc is arranged at the lower end of the height adjusting rod, and the upper end of the height adjusting rod is arranged at the top of the inner cavity of the vacuum chamber; the space between the lens mounting disc and the evaporation boat is adjusted by adjusting the mounting position of the lens mounting disc relative to the height adjusting rod.
The height adjusting rod comprises a sleeve at the lower part and a rod handle at the upper part, a connecting hole is formed in the top end of the rod handle, and the height adjusting rod is fixed to the top of the inner cavity of the vacuum chamber through the connecting hole; the top that is equipped with the peg on a plurality of regulation holes and the lens mounting disc is equipped with the mounting hole down from last on the sheathed tube wall of hollow sleeve pipe, and after the peg inserted the sleeve pipe, through the cooperation of bolt, mounting hole and corresponding regulation hole, can be with lens mounting disc and altitude mixture control pole fixed connection.
The lens mounting disc comprises a hanging rod and a disc body which are integrally formed, wherein the top end of the hanging rod is provided with a mounting hole, and the bottom end of the hanging rod is fixedly connected with the circle center of the circular disc body.
A plurality of through holes are distributed on the disc body of the lens mounting disc, the diameter of each through hole is smaller than that of the lens base material, a lens base material to be coated is placed on each through hole, and the coating surface of the lens base material faces downwards.
The vacuum chamber is of a hollow cylindrical cavity structure, a circular revolution disc is arranged at the top of an inner cavity of the vacuum chamber and is connected with the top of the inner cavity of the vacuum chamber through a revolution shaft, and the revolution shaft can drive the revolution disc to rotate around the central shaft.
The central axis position of the revolution disc is superposed with the central axis position of the vacuum chamber, the diameter of the revolution disc is smaller than the inner diameter of the vacuum chamber, and the revolution shaft is positioned at the central axis positions of the revolution disc and the vacuum chamber.
The height adjusting rod is connected with the revolution plate, a plurality of rotary mounting seats are uniformly arranged on the revolution plate along the circumferential direction, the top end of the height adjusting rod is connected with the rotary mounting seats, the rotary mounting seats drive the height adjusting rod to rotate around the central axis of the height adjusting rod, and meanwhile, the height adjusting rod drives the lens mounting disc to rotate synchronously with the height adjusting rod.
The revolution plate drives the height adjusting rod to revolve around the central shaft of the vacuum chamber, and meanwhile, the rotary mounting seat on the revolution plate drives the height adjusting rod to rotate around the self central shaft of the revolution plate, so that the lens mounting plate rotates around the self central shaft of the revolution plate and revolves around the central shaft of the vacuum chamber under the driving of the height adjusting rod.
The vacuum chamber is provided with a cabin door for replacing the lens mounting disc and the coating material.
The vacuum chamber is matched with a vacuum pump, the vacuum pump is used for vacuumizing the vacuum chamber before the coating machine operates, and coating is started when the vacuum degree in the vacuum chamber reaches a preset value, so that the lens coating is carried out in a vacuum state.
When the coating machine operates, the evaporation boat heats the coating material to evaporate and diffuse the coating material upwards, the heated and gasified coating material particles are transmitted to the lens base material by the evaporation boat, and the gas-phase coating material particles are condensed, nucleated, grown and formed on the surface of the lens base material after reaching the surface of the lens base material, so that the coating of the optical film is realized.
The distance between the lens base material and the coating material in the evaporation boat has direct influence on the coating speed, and the longer the distance is, the longer the gasified coating material needs to be diffused; on the contrary, the shorter the distance that the vaporized coating material needs to be diffused, the shorter the coating time, but the too short distance is not feasible, because the higher the concentration of the vaporized coating material at the position closer to the evaporation boat is, the too fast the growth speed of the coating material on the surface of the lens substrate is, and the problem of uneven coating thickness is easily generated, thereby affecting the coating quality. In order to reduce the coating time and improve the coating efficiency while ensuring the coating quality, a proper distance is required between the evaporation boat and the lens substrate. Because the film layer materials and the film layer structures which need to be plated on different batches of lenses are different, the distances between the evaporation boat and the lens base materials are also different, in order to realize the optimal film plating effect, the height of the lens mounting plate in the vacuum chamber needs to be adjusted through the height adjusting rod, and therefore the distance between the evaporation boat and the lens base materials is adjusted, the evaporation boat and the lens base materials can be located at proper positions when different lenses are plated, the film plating quality is guaranteed, and the film plating time is shortened.
Compared with the prior art, the utility model has the following advantages:
the utility model discloses a connect altitude mixture control pole on the peg of lens mounting disc, realize the adjustability of lens mounting disc mounted position, can suitably reduce the mounting height of lens mounting disc when needs, shorten the distance between lens mounting disc and the evaporation boat, under the prerequisite of ensureing coating film homogeneity and coating film quality, shorten the coating film time, improve coating film efficiency, suitable using widely.
Drawings
FIG. 1 is a schematic cross-sectional structure diagram of the film plating machine of the present invention;
FIG. 2 is a cross-sectional view of the lens mounting plate of the present invention;
FIG. 3 is a front view of the height adjusting lever of the present invention;
FIG. 4 is a sectional view of the height adjusting lever of the present invention;
fig. 5 is the schematic view of the lens mounting plate and height adjusting rod combined mounting structure of the present invention.
Wherein: 1-lens mounting plate; 11-hanging rod; 12-a tray body; 13-mounting holes; 2, adjusting a height rod; 21-a shank; 22-a sleeve; 23-connecting hole; 24-an adjustment hole; 3-evaporating boat; 4-vacuum chamber; 5-revolution plate; 51-a revolution axis; 52-rotating the mount.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-5: an optical lens coating machine comprises a lens mounting disc 1, a height adjusting rod 2, an evaporation boat 3 and a vacuum chamber 4. Height adjusting rod 2 sets up at the inner chamber top of real empty room 4, and lens mounting disc 1 is connected with height adjusting rod 2, and lens mounting disc 1 is used for fixed lens substrate, and the evaporation boat 3 of setting in real empty room 4 bottom is used for placing coating material and heats coating material and makes its evaporation. There is a section of hollow sleeve 22 on altitude mixture control pole 2, embolias wherein with peg 11 of lens mounting disc 1, there is mounting hole 13 at the top of peg 11, has the regulation hole 24 that corresponds the setting with mounting hole 13 on the sleeve 22 lateral wall of altitude mixture control pole 2, through the cooperation of bolt, mounting hole 13 and regulation hole 24, can be with lens mounting disc 1 and altitude mixture control pole 2 fixed connection.
As shown in fig. 2, the lens mounting plate 1 includes two parts, namely a hanging rod 11 and a plate body 12, wherein one end of the hanging rod 11 is provided with a mounting hole 13, the other end of the hanging rod is fixedly connected with the center of a circle of the circular plate body 12, and the hanging rod 11 and the plate body 12 are integrally formed. A plurality of lens through holes are uniformly distributed on the lens mounting disc 1, the diameter of each through hole is slightly smaller than that of a lens base material, a lens base material to be coated can be placed on each lens through hole, and the coating surface of the lens base material faces downwards.
As shown in fig. 3, 4 and 5, the height adjusting rod 2 comprises two sections, one section is a solid rod handle 21, the other section is a hollow sleeve 22, wherein the top end of the rod handle 21 is provided with a connecting hole 23 for connecting with the top of the vacuum chamber 4, the hollow sleeve 22 is used for connecting with the hanging rod 11 of the mounting plate 1, the hanging rod 11 can be inserted into the sleeve 22, the side wall of the sleeve 22 is provided with a plurality of adjusting holes 24 which are arranged in parallel along the length direction, and the hanging rod 11 can be correspondingly connected with different adjusting holes 24 through bolts when the inserting depth is different. The deeper the hanging rod 11 is inserted, the longer the superposed section of the height adjusting rod 2 and the hanging rod 11 is, and the shorter the combined length of the height adjusting rod and the hanging rod 11 is; conversely, the shallower the depth of insertion of the hanging bar 11, the shorter the overlapping section of the height adjusting bar 2 and the hanging bar 11, and the longer the combined length thereof. Therefore, the height of the installation position of the lens installation disc 1 in the vacuum chamber 4 can be adjusted by combining the lens installation disc 1 and the height adjusting rod 2.
As shown in fig. 1, the vacuum chamber 4 is a hollow cylindrical cavity structure, a circular revolution plate 5 is arranged at the top of an inner cavity of the vacuum chamber 4, the position of a central axis of the revolution plate 5 coincides with the position of a central axis of the vacuum chamber 4, the diameter of the revolution plate 5 is smaller than the inner diameter of the vacuum chamber 4, the revolution plate 5 is connected with the top of the vacuum chamber 4 through a revolution shaft 51, the revolution shaft 51 is located at the positions of the central axes of the revolution plate 5 and the vacuum chamber 4, and the revolution shaft 51 can drive the revolution plate 5 to rotate around the central. Height-adjusting pole 2 is connected with revolution dish 5, evenly is provided with a plurality of (usually four) rotatory mount pad 52 along the circumferencial direction on the revolution dish 5, and height-adjusting pole 2's top is connected with rotatory mount pad 52, and rotatory mount pad 52 drives height-adjusting pole 2 around its central axis rotation, and then drives lens mounting disc 1 rather than synchronous rotation through height-adjusting pole 2. Since the revolution plate 5 drives the height adjustment lever 2 to revolve around the central axis of the vacuum chamber, and the rotation mounting seat 52 on the revolution plate 5 drives the height adjustment lever 2 to rotate around its own central axis, the lens mounting plate 1 revolves around the central axis of the vacuum chamber 4 while rotating around its own central axis under the drive of the height adjustment lever 2.
In the above structure, there is no correlation between the number of the evaporation boats 3 and the number of the lens mounting plates 1, the number of the evaporation boats 3 is determined by the kind of the coating material, and generally, one evaporation boat is required for each coating material, and only the evaporation boat where the coating material to be evaporated is located is heated each time when the coating is actually performed. Although the number of the evaporation boats 3 does not correspond to the number of the lens mounting disks 1, the positions where the evaporation boats 3 are mounted are related to the lens mounting disks 1, and the evaporation boats 1 should be mounted on a path where the center of the circle of the lens mounting disk 3 travels during revolution, and may be slightly deviated, but may not be deviated too far.
In addition, a hatch door is arranged on the vacuum chamber 4 for replacing the lens mounting disc 1 and the coating material. The vacuum chamber 4 is provided with a vacuum pump matched with the vacuum chamber, the vacuum pump is firstly used for vacuumizing the vacuum chamber 4 before the coating machine runs, and coating is started when the vacuum degree in the vacuum chamber 4 reaches a preset value, so that the coating of the lens base material is carried out in a vacuum state. Hatches and vacuum pumps are not referenced in the drawings, but they exist as a general technical knowledge.
When the coating machine of the invention operates, the evaporation boat 3 heats the coating material to evaporate and diffuse the coating material upwards, the heated and gasified coating material particles are transmitted to the surface of the lens base material on the lens mounting disc 1 by the evaporation boat 3, and the gas phase coating material particles are condensed, nucleated, grown and formed on the surface of the lens base material after reaching the surface of the lens base material, thereby realizing the coating of the optical film layer.
Specifically, the coating machine completes the coating process through the following steps:
(1) placing the lens base material on the hole position of the lens mounting disc 1 with the film coating surface of the lens base material facing downwards;
(2) the method comprises the following steps of (1) sending a lens mounting disc 1 into a vacuum chamber 4, connecting the lens mounting disc 1 with a height adjusting rod 2, selecting a proper hole position of an adjusting hole 24 on a sleeve 22 of the height adjusting rod 2, and connecting a hanging rod 11 of the lens mounting disc 1 with the height adjusting rod 2 through a bolt to enable the lens mounting disc 1 to be in a proper height position;
(3) putting the coating material into an evaporation boat 3;
(4) closing the hatch door of the vacuum chamber 4, starting a vacuum pump to vacuumize the vacuum chamber 4, and closing the vacuum pump when the vacuum degree reaches a preset value;
(5) starting the film coating machine, enabling the lens mounting disc 1 to rotate around the central shaft of the lens mounting disc and revolve around the central shaft of the vacuum chamber 4 at the same time, and enabling each lens base material to be in full contact with the gasified film coating molecules;
(6) and starting the coating machine, heating the coating material by the evaporation boat 3, evaporating and diffusing the coating material upwards, and condensing, nucleating, growing and forming a film on the surface of the lens substrate after the coating material reaches the surface of the lens substrate, thereby realizing the coating of the optical film layer.
The distance between the lens mounting disc 1 and the evaporation boat 3 has direct influence on the coating speed, and the longer the distance is, the longer the gasified coating material needs to be diffused; on the contrary, the shorter the distance that the vaporized coating material needs to be diffused, the shorter the coating time, but the quality of the coating film will be reduced if the distance is too short, because the higher the concentration of the vaporized coating material is, the faster the coating material is condensed on the surface of the lens substrate, the problem of uneven coating thickness is easily generated, and the quality of the coating film is affected. In order to reduce the coating time as much as possible and improve the coating efficiency while ensuring the coating quality, it is necessary to provide an appropriate distance between the evaporation boat 3 and the lens mounting plate 1. Because the film layer materials and the film layer structures which need to be plated on different batches of lenses are different, the optimal distance between the evaporation boat 3 and the lens mounting disc 1 is also different, in order to realize better film plating effect, the height of the lens mounting disc 1 in the vacuum chamber 4 needs to be adjusted through the height adjusting rod 2, so that the distance between the evaporation boat 3 and the lens base material is adjusted, the lens mounting disc can be positioned at a proper position when different lenses are plated, the film plating quality is ensured, and the film plating time is shortened.
The above embodiments are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea provided by the present invention all fall within the protection scope of the present invention; the technology not related to the utility model can be realized by the prior art.
Claims (8)
1. The utility model provides an optical lens coating machine, includes vacuum chamber (4), has placed evaporation boat (3), lens mounting disc (1) that correspond with evaporation boat (3) in vacuum chamber (4), its characterized in that: the lens mounting disc (1) is mounted at the lower end of the height adjusting rod (2), and the upper end of the height adjusting rod (2) is mounted at the top of the inner cavity of the vacuum chamber (4); the space between the lens mounting disc (1) and the evaporation boat (3) is adjusted by adjusting the mounting position of the lens mounting disc (1) relative to the height adjusting rod (2).
2. The optical lens coating machine of claim 1 wherein: the height adjusting rod (2) comprises a sleeve (22) at the lower part and a rod handle (21) at the upper part, a connecting hole (23) is formed in the top end of the rod handle (21), and the height adjusting rod (2) is fixed to the top of the inner cavity of the vacuum chamber (4) through the connecting hole (23); the top that peg (11) was gone up to being equipped with a plurality of regulation holes (24) and lens mounting disc (1) from last to being equipped with down on the casing wall of hollow sleeve pipe (22) is equipped with mounting hole (13), behind peg (11) inserted sleeve pipe (22), through the cooperation of bolt, mounting hole (13) and corresponding regulation hole (24), can be with lens mounting disc (1) and altitude mixture control pole (2) fixed connection.
3. An optical lens coater according to claim 1 or 2, wherein: the lens mounting disc (1) comprises a hanging rod (11) and a disc body (12) which are integrally formed, wherein a mounting hole (13) is formed in the top end of the hanging rod (11), and the bottom end of the hanging rod is fixedly connected with the circle center of the circular disc body (12).
4. The optical lens coating machine of claim 3 wherein: a plurality of through holes are distributed on the disc body (12) of the lens mounting disc (1), the diameter of each through hole is smaller than that of the lens base material, a lens base material to be coated is placed on each through hole, and the coating surface of each lens base material faces downwards.
5. The optical lens coating machine of claim 1 wherein: the vacuum chamber (4) is of a hollow cylindrical cavity structure, a circular revolution plate (5) is arranged at the top of an inner cavity of the vacuum chamber (4), the revolution plate (5) is connected with the top of the inner cavity of the vacuum chamber (4) through a revolution shaft (51), and the revolution shaft (51) can drive the revolution plate (5) to rotate around a central shaft.
6. The optical lens coating machine of claim 5 wherein: the central axis position of the revolution disc (5) is superposed with the central axis position of the vacuum chamber (4), the diameter of the revolution disc (5) is smaller than the inner diameter of the vacuum chamber (4), and the revolution shaft (51) is positioned at the central axis positions of the revolution disc (5) and the vacuum chamber (4).
7. An optical lens coater according to claim 5 or 6, wherein: the height adjusting rod (2) is connected with the revolution plate (5), a plurality of rotary mounting seats (52) are uniformly arranged on the revolution plate (5) along the circumferential direction, the top end of the height adjusting rod (2) is connected with the rotary mounting seats (52), the rotary mounting seats (52) drive the height adjusting rod (2) to rotate around the central axis of the height adjusting rod, and meanwhile, the height adjusting rod (2) drives the lens mounting disc (1) to rotate synchronously with the lens mounting disc.
8. The optical lens coater of claim 7 wherein: the revolution disc (5) drives the height adjusting rod (2) to revolve around the central axis of the vacuum chamber (4), and meanwhile, the rotating installation seat (52) on the revolution disc (52) drives the height adjusting rod (2) to rotate around the self central axis, so that the lens installation disc (1) rotates around the self central axis and revolves around the central axis of the vacuum chamber (4) under the driving of the height adjusting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385745.5U CN211227306U (en) | 2019-12-26 | 2019-12-26 | Optical lens piece coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385745.5U CN211227306U (en) | 2019-12-26 | 2019-12-26 | Optical lens piece coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211227306U true CN211227306U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922385745.5U Active CN211227306U (en) | 2019-12-26 | 2019-12-26 | Optical lens piece coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211227306U (en) |
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2019
- 2019-12-26 CN CN201922385745.5U patent/CN211227306U/en active Active
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