CN111061025A - Gluing and curing process of optical lens - Google Patents
Gluing and curing process of optical lens Download PDFInfo
- Publication number
- CN111061025A CN111061025A CN201911289904.XA CN201911289904A CN111061025A CN 111061025 A CN111061025 A CN 111061025A CN 201911289904 A CN201911289904 A CN 201911289904A CN 111061025 A CN111061025 A CN 111061025A
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- Prior art keywords
- lens
- curing
- gluing
- optical lens
- glue
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0486—Operating the coating or treatment in a controlled atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a gluing and curing process of an optical lens, which comprises the following steps: s1, preparing materials: cleaning a gluing surface of a lens of the optical lens, centering the lens, placing the centered lens of the optical lens to be glued on a black rubber plate, and regularly arranging the black rubber plate on a conveyor belt; s2, dispensing: dispensing glue on the gluing surface of the lens, wherein the diameter of the glue is 1.5mm-11mm, the number of the glue dispensed on one surface is 1-5, and the glue is UV curing glue; s3, transferring materials; s4, curing; s5, removing edge sealing strips; s6, epitaxial treatment; s7, epitaxial polishing; and S8, cleaning. The invention can provide the sufficient curing time for the UV curing colloid, so that the UV curing colloid is sufficiently cured, the bonding and curing stability of the lenses is ensured, the service life of the optical lens is prolonged, the application range of the optical lens is improved, and the generation of bubbles among the lenses after the bonding and curing is finished is avoided.
Description
Technical Field
The invention belongs to the technical field of optical lens gluing and curing, and particularly relates to a gluing and curing process of an optical lens.
Background
The optical lens is an essential component in a machine vision system, directly influences the quality of imaging quality and influences the realization and effect of an algorithm. The optical lens can be divided into a short-focus lens, a middle-focus lens and a long-focus lens from the focal length; wide-angle, standard and telephoto lenses are arranged according to the field size; the structure is divided into a fixed aperture fixed focus lens, a manual aperture fixed focus lens, an automatic aperture fixed focus lens, a manual zoom lens, an automatic aperture motorized zoom lens, an electric three-variable (aperture, focal length and focus are all variable) lens and the like. For a camera, the quality of a lens is always a key factor influencing the imaging quality, and a digital camera is certainly not an example, although the requirement on the optical resolution of the lens is lower in principle due to the limited CCD resolution of the digital camera; on the other hand, the imaging area of the digital camera is small (because the digital camera is imaged on the CCD, and the area of the CCD is much smaller than that of the film of the conventional 35mm camera), so that a lens is required to ensure a certain imaging quality. For example, for a certain subject, the horizontal direction requires 200 pixels to reproduce its details perfectly, if the imaging width is 10mm, a lens with an optical resolution of 20 lines/mm is sufficient, and if the imaging width is 1mm, the optical resolution of the lens must be more than 200 lines/mm. On the other hand, the traditional film is sensitive to ultraviolet rays, a UV mirror is often required to be additionally arranged for external photographing, the CCD is sensitive to infrared rays, and the imaging quality can be greatly improved by adding a special coating or an external filter to the lens. The physical aperture of the lens must be considered, and regardless of the relative aperture, the larger the physical aperture, the larger the luminous flux, the better the digital camera can receive and control the light, and the better the imaging quality. Some manufacturers of lenses for commercial or household digital cameras use relatively good lenses. The Fuji camera adopts a professional Fuji lens with 170 line/millimeter resolution, and the built-in novel Fuji lens is clearer than most SLR lenses. Not only the quality of image shooting is ensured in precision, but also the lens error rate reaches 0.3 percent which is surprising and is 2/3 percent lower than that of a common digital camera. In addition, in some digital cameras, two lens modes of long-distance and wide-angle are provided. This is also a reference index when you select a digital camera. In a conventional digital camera, a wide-angle lens is a photographing lens having a focal length shorter than a standard lens, a viewing angle larger than the standard lens, a focal length longer than a fisheye lens, and a viewing angle smaller than the fisheye lens. The wide-angle lens is divided into a common wide-angle lens and an ultra wide-angle lens. The focal length of a common wide-angle lens of a 135 camera is generally 38-24 mm, and the visual angle is 60-84 degrees; the focal length of the super wide-angle lens is 20-13 mm, and the visual angle is 94-118 degrees. The wide-angle lens has short focal length and large visual angle, so that a scene with a large area can be shot in a short shooting distance range. Therefore, the method is widely used for shooting wind photographic works in large scenes. In the photographic creation, the wide-angle lens is used for shooting, and the following effects can be obtained: firstly, the spatial depth sense of a photographic picture can be increased; secondly, the depth of field is long, and the scene before and after the shot subject can be clearly reproduced on the picture. Therefore, most modern pocket automatic cameras (commonly called fool cameras) adopt a common wide-angle lens of 38-35 mm; thirdly, the coverage area of the lens is large, and the range of the shot scenery is wide; fourthly, the scenery shot at the same shooting distance is smaller than the image of the scenery shot by using a standard lens in the picture; fifth, the defects of perspective distortion and image distortion are likely to occur in the screen, and the shorter the focal length of the lens, the closer the shooting distance is, the more significant such defects are. The same ordinary wide-angle lens as an ordinary 35mm camera is mostly used in commercial-grade digital cameras, and due to the advantages of deep depth of field, wide shooting range and the like, when the digital camera is selected, the digital camera with the same performance can have a wide angle and a long-distance digital camera, and the performance is better.
The existing gluing and curing process of the optical lens cannot completely ensure that the curing environment is completely dry when the lens is glued and cured, bubbles exist between the lenses after gluing and curing are easily caused, the ultraviolet radiation time and the ultraviolet radiation intensity are not uniform during the existing curing, the optimal curing time of a UV curing colloid cannot be reached, and the service life of the optical lens is not prolonged.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a gluing and curing process of an optical lens.
In order to achieve the purpose, the invention provides the following technical scheme:
a gluing and curing process of an optical lens comprises the following steps:
s1, preparing materials: cleaning a gluing surface of a lens of the optical lens, centering the lens, placing the centered lens of the optical lens to be glued on a black rubber plate, and regularly arranging the black rubber plate on a conveyor belt;
s2, dispensing: dispensing glue on the gluing surface of the lens, wherein the diameter of the glue is 1.5mm-11mm, the number of the glue dispensed on one surface is 1-5, and the glue is UV curing glue;
s3, transferring materials: bonding the bonding surfaces of the two lenses, bonding the edge sealing strip at the epitaxial position of the bonded lens, irradiating by ultraviolet rays for 3-6s, and conveying the lenses to a nitrogen circulating chamber by a conveying belt;
s4, curing: completely curing the UV curing colloid on the lens by using ultraviolet radiation for 40-65 s, wherein the wavelength of the ultraviolet is 320-400 nm;
s5, removing edge sealing strips: conveying the cured lens out of the nitrogen circulating chamber through a conveying belt, and removing the edge sealing strips;
s6, epitaxial treatment: carrying out epitaxial treatment on the cemented lens, and removing UV curing colloid overflowing from the cemented position;
s7, epitaxial polishing: cleaning the extension of the cemented lens, and polishing the cemented lens by using polishing equipment with a soft grinding head;
s8, cleaning: and wiping the glued lens extension and the lens surface by using alcohol by using cleaning cloth to obtain the finished product of the optical lens.
Preferably, the centering in S1 is performed by automatically centering the cemented lens, and a black optical damping cloth of 0.5-0.9mm is arranged between the black rubber plate in S1 and the lens to be cemented.
Preferably, the cold resistance of the glue in the S2 is-40 ℃ to-70 ℃, and the heat resistance is 40 ℃ to 70 ℃.
Preferably, the conveying speed of the conveyor belt in the S1 is 200 +/-5 n/min.
Preferably, a heating device and a thermometer are arranged in the nitrogen circulating chamber, the temperature in the nitrogen circulating chamber is controlled to be 45-55 ℃, and a tin foil paper layer is arranged on the inner wall of the nitrogen circulating chamber.
Preferably, the lens gluing in S3 is performed in a dust-free environment.
Preferably, in S6, the excess UV curable adhesive is removed by using a hard grinding head.
Preferably, the step S7, the epitaxial polishing is performed by using a polishing machine with a rubber polishing wheel.
Preferably, the cleaning cloth in S8 is an ultra-fine fiber cloth, and the alcohol is 75% alcohol.
The invention has the technical effects and advantages that: compared with the traditional gluing and curing process, the gluing and curing process for the optical lens can provide the UV curing glue body for sufficient curing time, so that the UV curing glue body is cured sufficiently, the gluing and curing stability of the lenses is ensured, the service life of the optical lens is prolonged, the application range of the optical lens is widened, and bubbles are prevented from being generated between the lenses after the gluing and curing are finished.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
Example 1
A gluing and curing process of an optical lens comprises the following steps:
s1, preparing materials: cleaning a gluing surface of a lens of the optical lens, centering the lens, placing the centered lens of the optical lens to be glued on a black rubber plate, and regularly arranging the black rubber plate on a conveyor belt;
s2, dispensing: dispensing glue on the gluing surface of the lens, wherein the diameter of the glue is 1.5mm-11mm, the number of the glue dispensed on one surface is 1-5, and the glue is UV curing glue;
s3, transferring materials: bonding the bonding surfaces of the two lenses, bonding the edge sealing strip at the epitaxial position of the bonded lens, irradiating by ultraviolet rays for 3-6s, and conveying the lenses to a nitrogen circulating chamber by a conveying belt;
s4, curing: completely curing the UV curing colloid on the lens by using ultraviolet radiation for 40s, wherein the wavelength of the ultraviolet is 320 nm;
s5, removing edge sealing strips: conveying the cured lens out of the nitrogen circulating chamber through a conveying belt, and removing the edge sealing strips;
s6, epitaxial treatment: carrying out epitaxial treatment on the cemented lens, and removing UV curing colloid overflowing from the cemented position;
s7, epitaxial polishing: cleaning the extension of the cemented lens, and polishing the cemented lens by using polishing equipment with a soft grinding head;
s8, cleaning: and wiping the glued lens extension and the lens surface by using alcohol by using cleaning cloth to obtain the finished product of the optical lens.
Through the centering in S1, the cemented lens is adopted for automatic centering, and the black optical damping cloth with the thickness of 0.5-0.9mm is arranged between the black rubber plate in S1 and the lens to be cemented. The cold resistance of the glue in the S2 is-40 ℃ to-70 ℃, the heat resistance is 40 ℃ to 70 ℃, and the service life of the optical lens can be prolonged and the application range of the optical lens can be widened through the heat resistance and the cold resistance of the glue. And the conveying speed of the conveyor belt in the step S1 is 200 +/-5 n/min, and the conveying speed of the conveyor belt is higher than the conveying speed of the conveyor belt. The nitrogen circulating chamber is internally provided with a heating device and a thermometer, the temperature in the nitrogen circulating chamber is controlled to be 45-55 ℃, and the inner wall of the nitrogen circulating chamber is provided with a tin foil paper layer. The lens bonding in S3 is performed in a dust-free environment. And in the S6, removing the redundant UV curing colloid by using a hard grinding head. And in the step S7, polishing by adopting a polishing machine with a rubber polishing wheel. The cleaning cloth in the S8 is superfine fiber cloth, and the alcohol is 75% alcohol.
Example 2
A gluing and curing process of an optical lens comprises the following steps:
s1, preparing materials: cleaning a gluing surface of a lens of the optical lens, centering the lens, placing the centered lens of the optical lens to be glued on a black rubber plate, and regularly arranging the black rubber plate on a conveyor belt;
s2, dispensing: dispensing glue on the gluing surface of the lens, wherein the diameter of the glue is 1.5mm-11mm, the number of the glue dispensed on one surface is 1-5, and the glue is UV curing glue;
s3, transferring materials: bonding the bonding surfaces of the two lenses, bonding the edge sealing strip at the epitaxial position of the bonded lens, irradiating by ultraviolet rays for 1-2s, and conveying the lenses to a nitrogen circulating chamber by a conveying belt;
s4, curing: completely curing the UV curing colloid on the lens by using ultraviolet radiation 65s, wherein the wavelength of the ultraviolet is 400 nm;
s5, removing edge sealing strips: conveying the cured lens out of the nitrogen circulating chamber through a conveying belt, and removing the edge sealing strips;
s6, epitaxial treatment: carrying out epitaxial treatment on the cemented lens, and removing UV curing colloid overflowing from the cemented position;
s7, epitaxial polishing: cleaning the extension of the cemented lens, and polishing the cemented lens by using polishing equipment with a soft grinding head;
s8, cleaning: and wiping the glued lens extension and the lens surface by using alcohol by using cleaning cloth to obtain the finished product of the optical lens.
By adopting the self-centering of the cemented lens in the centering in the S1, the black optical damping cloth of 0.5-0.9mm is arranged between the black rubber plate in the S1 and the lens to be cemented. The cold resistance of the glue in the S2 is-40 to-70 ℃, and the heat resistance is 40 to 70 ℃. The conveying speed of the conveyor belt in the S1 is 200 +/-5 n/min. The temperature in the nitrogen circulating chamber is controlled to be 45-55 ℃, and the inner wall of the nitrogen circulating chamber is provided with a tin foil paper layer. By the step of S3, the lens gluing is performed in a dust-free environment. In the step S6, the excess UV curable adhesive is removed by using a hard grinding head. By the step S7, the epitaxial polishing is performed by using a polishing machine with a rubber polishing wheel. In the step S8, the cleaning cloth is ultra-fine fiber cloth, and the alcohol is 75% alcohol.
Through the study on the two groups of embodiments, the optical lens produced by the gluing and curing process in the embodiment 2 has wider application environment and higher quality under the conditions of two different ultraviolet illumination time and illumination intensity.
In summary, the following steps: compared with the traditional gluing and curing process, the UV curing glue on the lens is completely cured by using ultraviolet radiation for 65s, the wavelength of the ultraviolet is 400nm, the UV curing glue can be provided for sufficient curing time, the UV curing glue is fully cured, the gluing and curing stability of the lens is ensured, the service life of the optical lens is prolonged, the application range of the optical lens is improved, and the drying of the environment in the gluing process can be ensured by the matched use of a nitrogen circulating chamber, a tin foil paper layer and a thermometer, so that bubbles are not easy to appear on the finished optical lens.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A gluing and curing process for an optical lens is characterized by comprising the following steps:
s1, preparing materials: cleaning a gluing surface of a lens of the optical lens, centering the lens, placing the centered lens of the optical lens to be glued on a black rubber plate, and regularly arranging the black rubber plate on a conveyor belt;
s2, dispensing: dispensing glue on the gluing surface of the lens, wherein the diameter of the glue is 1.5mm-11mm, the number of the glue dispensed on one surface is 1-5, and the glue is UV curing glue;
s3, transferring materials: bonding the bonding surfaces of the two lenses, bonding the edge sealing strip at the epitaxial position of the bonded lens, irradiating by ultraviolet rays for 3-6s, and conveying the lenses to a nitrogen circulating chamber by a conveying belt;
s4, curing: completely curing the UV curing colloid on the lens by using ultraviolet radiation for 40-65 s, wherein the wavelength of the ultraviolet is 320-400 nm;
s5, removing edge sealing strips: conveying the cured lens out of the nitrogen circulating chamber through a conveying belt, and removing the edge sealing strips;
s6, epitaxial treatment: carrying out epitaxial treatment on the cemented lens, and removing UV curing colloid overflowing from the cemented position;
s7, epitaxial polishing: cleaning the extension of the cemented lens, and polishing the cemented lens by using polishing equipment with a soft grinding head;
s8, cleaning: and wiping the glued lens extension and the lens surface by using alcohol by using cleaning cloth to obtain the finished product of the optical lens.
2. The gluing and curing process of an optical lens according to claim 1, wherein: the centering in the S1 is performed by automatically centering the cemented lens, and a black optical damping cloth of 0.5-0.9mm is arranged between the black rubber plate in the S1 and the lens to be cemented.
3. The gluing and curing process of an optical lens according to claim 1, wherein: the cold resistance of the glue in the S2 is-40 ℃ to-70 ℃, and the heat resistance is 40 ℃ to 70 ℃.
4. The gluing and curing process of an optical lens according to claim 1, wherein: the conveying speed of the conveyor belt in the S1 is 200 +/-5 n/min.
5. The gluing and curing process of an optical lens according to claim 1, wherein: the nitrogen circulating chamber is internally provided with a heating device and a thermometer, the temperature in the nitrogen circulating chamber is controlled to be 45-55 ℃, and the inner wall of the nitrogen circulating chamber is provided with a tin foil paper layer.
6. The gluing and curing process of an optical lens according to claim 1, wherein: the lens bonding in S3 is performed in a dust-free environment.
7. The gluing and curing process of an optical lens according to claim 1, wherein: and in the S6, removing the redundant UV curing colloid by using a hard grinding head.
8. The gluing and curing process of an optical lens according to claim 1, wherein: and in the step S7, polishing by adopting a polishing machine with a rubber polishing wheel.
9. The gluing and curing process of an optical lens according to claim 1, wherein: the cleaning cloth in the S8 is superfine fiber cloth, and the alcohol is 75% alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911289904.XA CN111061025A (en) | 2019-12-18 | 2019-12-18 | Gluing and curing process of optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911289904.XA CN111061025A (en) | 2019-12-18 | 2019-12-18 | Gluing and curing process of optical lens |
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| Publication Number | Publication Date |
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| CN111061025A true CN111061025A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911289904.XA Pending CN111061025A (en) | 2019-12-18 | 2019-12-18 | Gluing and curing process of optical lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965254A (en) * | 2021-03-31 | 2021-06-15 | 歌尔股份有限公司 | Optical waveguide lens overlapping structure and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688845A (en) * | 2012-05-28 | 2012-09-26 | 舜宇光学(中山)有限公司 | Bending and curing process for optical lens |
| CN103676081A (en) * | 2013-12-19 | 2014-03-26 | 丹阳丹耀光学有限公司 | Gluing early-curing centering device |
| CN104635315A (en) * | 2015-01-28 | 2015-05-20 | 江苏北方湖光光电有限公司 | Method for manufacturing opaque visible light prism component by gluing |
| CN105223702A (en) * | 2015-10-28 | 2016-01-06 | 张家港康得新光电材料有限公司 | There is the device of touch-control and three-D image display function |
-
2019
- 2019-12-18 CN CN201911289904.XA patent/CN111061025A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688845A (en) * | 2012-05-28 | 2012-09-26 | 舜宇光学(中山)有限公司 | Bending and curing process for optical lens |
| CN103676081A (en) * | 2013-12-19 | 2014-03-26 | 丹阳丹耀光学有限公司 | Gluing early-curing centering device |
| CN104635315A (en) * | 2015-01-28 | 2015-05-20 | 江苏北方湖光光电有限公司 | Method for manufacturing opaque visible light prism component by gluing |
| CN105223702A (en) * | 2015-10-28 | 2016-01-06 | 张家港康得新光电材料有限公司 | There is the device of touch-control and three-D image display function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965254A (en) * | 2021-03-31 | 2021-06-15 | 歌尔股份有限公司 | Optical waveguide lens overlapping structure and manufacturing method thereof |
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