Lens processing method

Abstract

The present invention provides a lens processing method. The lens processing method includes the step of processing a lens barrel, and the step of processing the lens barrel includes: after the lens barrel mold is closed, it is loaded into an injection molding machine, and then the hot-melted mixed raw materials are injected into the lens barrel mold through the nozzle of the injection molding machine to form the lens barrel, along the axis direction of the lens barrel, the lens barrel includes a first barrel body and a second barrel body connected to the first barrel body, a step surface is formed between the outer wall of the first barrel body and the outer wall of the second barrel body, and the outer wall of the first barrel body has a notch, after the hot-melted mixed raw materials are cooled and formed to form the lens barrel, the mold is opened at the notch, and the lens barrel is taken out from the lens barrel mold. The present invention effectively solves the problem in the prior art that the lens is prone to produce gold edges or whitening, which affects the user's visual experience.

Description

[0001] This application is a divisional application of the patent application submitted to the State Intellectual Property Office of China on January 3, 2020, with application number 202010006273.2 and invention name “Lens Processing Method”. Technical Field

[0002] The present invention relates to the technical field of lens processing, and in particular to a lens processing method. Background Art

[0003] Currently, in order to make the appearance of a camera produce a black visual effect, it is usually necessary to perform a black plating operation on the camera.

[0004] However, in the prior art, a mold opening operation is usually performed at the large bell mouth of the lens barrel, which results in the camera being easily gold-rimmed or whitened after the black plating operation, which affects the user's visual experience. Summary of the invention

[0005] The main purpose of the present invention is to provide a lens processing method to solve the problem in the prior art that the lens is prone to produce golden edges or whitening, which affects the user's visual experience.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a lens processing method, comprising the steps of processing a lens barrel, the steps of processing the lens barrel comprising: after the lens barrel mold is closed, it is loaded into an injection molding machine, and then the hot-melt mixed raw materials are injected into the lens barrel mold through the nozzle of the injection molding machine to form the lens barrel, along the axial direction of the lens barrel, the lens barrel comprises a first barrel body and a second barrel body connected to the first barrel body, a step surface is formed between the outer wall of the first barrel body and the outer wall of the second barrel body, and the outer wall of the first barrel body has a notch, after the hot-melt mixed raw materials are cooled and formed to form the lens barrel, the mold is opened at the notch, and the lens barrel is taken out from the lens barrel mold.

[0007] Furthermore, the notch is an annular groove, and the depth of the annular groove is less than or equal to 0.2 mm.

[0008] Furthermore, along the central axis direction of the first cylinder, the outer wall of the first cylinder includes a first wall surface and a second wall surface, the outer diameter of the second wall surface is greater than the outer diameter of the first wall surface, and a gap is formed between the first wall surface and the second wall surface.

[0009] Furthermore, the difference between the outer diameter of the second wall surface and the outer diameter of the first wall surface is less than or equal to 0.02 mm.

[0010] Furthermore, an extension portion extending toward the central axis of the first barrel is provided on the inner wall of the first barrel, and the lens processing method also includes the step of assembling the lens group and the lens barrel, and the step of assembling the lens group and the lens barrel includes: installing the lens group in the lens barrel so that the lens group and the extension portion are limited and stopped.

[0011] By applying the technical solution of the present invention, along the axial direction of the lens barrel, the lens barrel includes a first barrel body and a second barrel body connected to the first barrel body, a step surface is formed between the outer wall of the first barrel body and the outer wall of the second barrel body, and the outer wall of the first barrel body has a notch. After the mixed raw materials after hot melting are cooled and formed into a lens barrel, the mold is opened at the notch and the lens barrel is taken out from the lens barrel mold.

[0012] In this way, compared with the prior art of opening the mold at the large bell mouth of the lens barrel, the lens processing method in the present application can avoid the generation of gold edges or whitening on the lens barrel during the black plating process, thereby solving the problem in the prior art that the lens is prone to generate gold edges or whitening and affecting the user's visual experience, thereby improving the user's visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0014] Figure 1 A schematic diagram showing the internal structure of a lens according to an embodiment of the lens processing method of the present invention; and

[0015] Figure 2 Shows Figure 1 An enlarged schematic diagram of point B of the lens in FIG.

[0016] The above drawings include the following reference numerals:

[0017] 10. First cylinder; 11. Extension portion; 12. Notch; 13. First wall surface; 14. Second wall surface; 20. Second cylinder; 31. Step surface; 40. Lens group. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0020] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0021] In order to solve the problem in the prior art that lenses are prone to produce golden edges or whitening, which affects the user's visual experience, the present application provides a lens processing method.

[0022] like Figure 1 and Figure 2 As shown, the lens processing method includes the steps of processing the lens barrel, and the steps of processing the lens barrel include:

[0023] After the lens barrel mold is closed, it is loaded into an injection molding machine, and then the hot-melt mixed raw materials are injected into the lens barrel mold through the nozzle of the injection molding machine to form the lens barrel. Along the axial direction of the lens barrel, the lens barrel includes a first barrel body 10 and a second barrel body 20 connected to the first barrel body 10. A step surface 31 is formed between the outer wall of the first barrel body 10 and the outer wall of the second barrel body 20. The outer wall of the first barrel body 10 has a notch 12. After the hot-melt mixed raw materials are cooled and formed to form the lens barrel, the mold is opened at the notch 12 to take the lens barrel out of the lens barrel mold.

[0024] By applying the technical solution of this embodiment, along the axial direction of the lens barrel, the lens barrel includes a first barrel body 10 and a second barrel body 20 connected to the first barrel body 10, a step surface 31 is formed between the outer wall of the first barrel body 10 and the outer wall of the second barrel body 20, and the outer wall of the first barrel body 10 has a notch 12. After the mixed raw materials after hot melting are cooled and formed into a lens barrel, the mold is opened at the notch 12, and the lens barrel is taken out from the lens barrel mold.

[0025] In this way, compared with the prior art of opening the mold at the large bell mouth of the lens barrel, the lens processing method in this embodiment can avoid the generation of gold edges or whitening on the lens barrel during the black plating process, thereby solving the problem in the prior art that the lens is prone to generate gold edges or whitening and affecting the user's visual experience, thereby improving the user's visual experience.

[0026] In this embodiment, Figure 1 The mold opening operation is performed at point A in the figure.

[0027] Optionally, the notch 12 is an annular groove, and the depth of the annular groove is less than or equal to 0.2 mm.

[0028] In this embodiment, along the central axis direction of the first barrel 10, the outer wall of the first barrel 10 includes a first wall surface 13 and a second wall surface 14, the outer diameter of the second wall surface 14 is greater than the outer diameter of the first wall surface 13, and a gap 12 is formed between the first wall surface 13 and the second wall surface 14. In this way, the above arrangement makes the processing of the gap 12 easier and simpler, reducing the processing cost of the lens. At the same time, opening the mold at the gap 12 can prevent the lens barrel from producing gold edges or whitening during the black plating process, thereby improving the user's visual experience.

[0029] In this embodiment, the difference between the outer diameter of the second wall surface 14 and the outer diameter of the first wall surface 13 is less than or equal to 0.02 mm. Thus, the above arrangement improves the structural strength of the lens barrel and prolongs the service life of the lens barrel on the one hand; on the other hand, it makes the mold opening of the lens barrel easier and simpler, reducing the difficulty of mold opening.

[0030] In this embodiment, an extension portion 11 extending toward the central axis of the first barrel 10 is provided on the inner wall of the first barrel 10, and the lens processing method further includes the step of assembling the lens group 40 and the barrel, and the step of assembling the lens group 40 and the barrel includes: installing the lens group 40 in the barrel so that the lens group 40 and the extension portion 11 are limited and stopped. In this way, after the barrel is taken out of the barrel mold, the lens group 40 is installed in the barrel so that the lens group 40 and the extension portion 11 are limited and stopped, thereby completing the assembly of the lens.

[0031] Optionally, the lens group 40 includes one or more lenses. When there are multiple lenses, the multiple lenses are spaced apart along the central axis direction of the lens barrel.

[0032] It should be noted that the type of the notch 12 is not limited thereto. In other embodiments not shown in the drawings, the notch is an annular groove, and the groove depth of the annular groove is less than or equal to 0.2 mm. In this way, the above arrangement makes the processing of the notch easier and simpler, and reduces the processing difficulty.

[0033] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0034] Along the axial direction of the lens barrel, the lens barrel includes a first barrel body and a second barrel body connected to the first barrel body, a step surface is formed between the outer wall of the first barrel body and the outer wall of the second barrel body, and the outer wall of the first barrel body has a notch. After the mixed raw materials after hot melting are cooled and formed into a lens barrel, the mold is opened at the notch and the lens barrel is taken out from the lens barrel mold.

[0035] In this way, compared with the prior art of opening the mold at the large bell mouth of the lens barrel, the lens processing method in this embodiment can avoid the generation of gold edges or whitening on the lens barrel during the black plating process, thereby solving the problem in the prior art that the lens is prone to generate gold edges or whitening and affecting the user's visual experience, thereby improving the user's visual experience.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lens processing method, characterized in that: The method comprises the steps of processing a lens barrel, wherein the steps of processing the lens barrel include: The lens barrel mold is assembled and loaded into an injection molding machine, and then the hot-melt mixed raw materials are injected into the lens barrel mold through the nozzle of the injection molding machine to form a lens barrel. Along the axial direction of the lens barrel, the lens barrel comprises a first barrel body (10) and a second barrel body (20) connected to the first barrel body (10), a step surface (31) is formed between the outer wall of the first barrel body (10) and the outer wall of the second barrel body (20), and the outer wall of the first barrel body (10) has a notch (12). After the hot-melt mixed raw materials are cooled and formed to form the lens barrel, the mold is opened at the notch (12) to remove the lens barrel from the lens barrel mold; An extension portion (11) extending towards the central axis of the first barrel (10) is provided on the inner wall of the first barrel (10), and the lens processing method further comprises the step of assembling the lens group (40) and the barrel, the step of assembling the lens group (40) and the barrel comprising: The lens group (40) is installed in the lens barrel so that the lens group (40) and the extension portion (11) are limited and stopped; The notch (12) is an annular groove; Along the central axis direction of the first cylinder (10), the outer wall of the first cylinder (10) comprises a first wall surface (13) and a second wall surface (14); the outer diameter of the second wall surface (14) is greater than the outer diameter of the first wall surface (13); and the notch (12) is formed between the first wall surface (13) and the second wall surface (14); The groove depth of the annular groove is less than or equal to 0.2 mm.

2. The lens processing method according to claim 1, characterized in that: The difference between the outer diameter of the second wall surface (14) and the outer diameter of the first wall surface (13) is less than or equal to 0.02 mm.

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