CN217127321U

CN217127321U - Lens protection film

Info

Publication number: CN217127321U
Application number: CN202122627412.6U
Authority: CN
Inventors: 夏超进; 吴双成; 阙磊
Original assignee: Sunwin Hubei Optoelectronic Technology Co Ltd
Current assignee: Sunwin Hubei Optoelectronic Technology Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-08-05
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a camera lens protection film technical field provides a camera lens protection film, include by lower supreme wheat that sets gradually and draw layer, silica gel layer, two-sided glue film and PET layer, the wheat is drawn the layer and is located the border department on silica gel layer, in the silica gel layer extremely the sunken recess that forms of PET layer direction, the tank bottom of recess extends to the lower surface department on PET layer. The utility model discloses a lens protection film, which protects the lens from the adverse effects of external scratches and the like; the protective film does not have the abnormalities of protective film delamination, adhesive residue and the like in a normal film tearing test under the environmental scenes of specified constant temperature, low-temperature storage and the like.

Description

Lens protection film

Technical Field

The utility model relates to a camera lens protection film technical field specifically is a camera lens protection film.

Background

The development of a mobile phone camera module is directly promoted by the update of the mobile phone industry, and in the development process, a lens unthreaded hole protective film at the head of the camera module is an auxiliary material which is necessary for protecting the camera module before the module is shipped and transported to a mobile phone; the main effect prevents that the unthreaded hole from being scraped colored or greasy dirt and dust pollution unthreaded hole for protection lens surface lens and terminal surface on the camera module, prevents that the visible device in surface from appearing scraping colored influence complete machine outward appearance. The material stromatolite is roughly become by three to four layers of different function's material composition to ordinary conventional PET protection film, and the protection film protection of this structure is owing to receive the material ageing at the in-process that uses at present, perhaps during the external force of protection film separation module, can appear protection film raw materials layering, leads to partial silica gel foreign matter to glue and glues and make the module terminal surface produce the outward appearance dirty, needs to carry out secondary maintenance, and this is unusual leads to the module yield to descend promptly and also influences terminal installation efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lens protection film can solve the partial defect among the prior art at least.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a lens protection film, includes by lower supreme mylar layer, silica gel layer, two-sided adhesive layer and the PET layer that sets up of stromatolite in proper order, mylar layer is located the border department on silica gel layer, in silica gel layer extremely the sunken recess that forms of PET layer direction, the tank bottom of recess extends to the lower surface department on PET layer.

Further, the silica gel layer, two-sided glue film and the PET layer all is incandescent lamp column structure, incandescent lamp column structure have annular portion and in the outside extension that extends of annular portion, the Mylar layer is located on the extension of incandescent lamp column structure.

Further, the thickness of the PET layer is 0.05mm, and the antistatic property is 10 ⁵ ～10 ¹⁰ Omega is between.

Furthermore, the thickness of the double-sided adhesive layer is 0.05mm, and the bonding force is 800-1000 g.

Furthermore, the thickness of the silica gel layer is 0.06mm, and the bonding force is 800-1000 g.

Further, the Mylar layer has a thickness of 0.05mm and a bonding strength of 850 + -150 g.

Compared with the prior art, the beneficial effects of the utility model are that: a lens protective film protects a lens from adverse effects such as external scratches; the protective film does not have the abnormalities of protective film delamination, adhesive residue and the like in a normal film tearing test under the environmental scenes of specified constant temperature, low-temperature storage and the like.

Drawings

Fig. 1 is a plan view of a conventional lens protective film;

fig. 2 is a bottom view of a conventional lens protective film;

fig. 3 is a side sectional view of a conventional lens protective film;

fig. 4 is a top view of a lens protection film according to an embodiment of the present invention;

fig. 5 is a bottom view of a lens protection film according to an embodiment of the present invention;

fig. 6 is a side cross-sectional view of a lens protection film according to an embodiment of the present invention;

in the reference symbols: 1-mylar layer; 2-a silica gel layer; 3-double-sided adhesive layer; 4-a PET layer; 5-a groove; 6-a ring-shaped portion; 7-an extension.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 4 to 6, an embodiment of the present invention provides a lens protection film, including a mylar layer 1, a silica gel layer 2, a double-sided adhesive layer 3, and a PET layer 4 stacked in sequence from bottom to top, where the mylar layer 1 is disposed at an edge of the silica gel layer 2, a groove 5 is formed in the silica gel layer 2 to the PET layer 4 in a direction concave manner, and a bottom of the groove 5 extends to a lower surface of the PET layer 4. In the embodiment, the lens protection film can protect the lens from being scratched by the outside and other defects by adopting the structural form of each layer of the embodiment; the protective film does not have the abnormalities of protective film delamination, adhesive residue and the like in a normal film tearing test under the environmental scenes of specified constant temperature, low-temperature storage and the like. Specifically, in the prior art, as shown in fig. 1 to fig. 3, the silica gel layer a and the blue mylar layer b are on the same layer, and then the double-sided adhesive layer c is formed thereon, the yellow single-sided mylar layer d is formed above the double-sided adhesive layer c, and the PET layer e is formed above the yellow single-sided mylar layer d, when the hand-tearing handle is grabbed, the double-sided adhesive layer covered by the hand-tearing handle is grabbed, if the silica gel layer a and the lens end face are bonded too tightly, the problem that the silica gel layer a and the double-sided adhesive layer c are separated or the silica gel is remained on the lens end face occurs when the hand-tearing handle is grabbed, but the structure form adopted in this embodiment is that, during normal film tearing, the silica gel layers are peeled together. In addition, the traditional protective film totally adopts five layers, and compared with the embodiment, one more layer is added, so that the cost is increased. In addition, the silicon gel layer 2 is sunken to form a groove 5 in the direction of the PET layer 4, so that a lens light-passing hole can not be shielded, and the silicon gel and the double-sided adhesive tape are not adhered to the lens in a sticky manner. The silica gel layer 2 is attached to the end face of the lens through the PET layer 4, and the PET layer 4 is left on the groove 5 to be capable of penetrating the surface of the lens.

The following are specific examples:

in order to optimize the above scheme, please refer to fig. 4 to 6, the silica gel layer, the double-sided adhesive layer, and the PET layer are all in an incandescent lamp-shaped structure, the incandescent lamp-shaped structure has an annular portion 6 and an extending portion 7 extending outward from the annular portion 6, and the mylar layer 1 is disposed on the extending portion 7 of the incandescent lamp-shaped structure. In this embodiment, the overall structure of the lens protection film is similar to an incandescent lamp, the structural form is the top view and the bottom view of the protection film, the tearing handle, i.e. the extension portion, can be conveniently pinched by fingers, and the mylar layer 1 is arranged on the extension portion.

As the embodiment of the utility model provides an optimization scheme, the thickness on PET layer 4 is 0.05mm, prevents static at 10 ⁵ ～10 ¹⁰ Omega is between. In this example, the PET layer is transparent PET, i.e., ethylene terephthalate. The thickness is set at 0.05mm and is static-proofElectrical setting at 10 ⁵ ～10 ¹⁰ Omega is between.

As the embodiment of the utility model provides an optimization scheme, two-sided adhesive layer 3's thickness is 0.05mm, and the bonding force is between 800 ~ 1000 g. In this embodiment, the thickness of the double-sided adhesive layer is set to 0.05mm, and the adhesion force is set to 800-1000 g.

As the embodiment of the utility model provides an optimization scheme, the thickness on silica gel layer 2 is 0.06mm, and the bonding force is between 800 ~ 1000 g. In this embodiment, the thickness of the silicone layer is set to 0.06mm, and the adhesion is set to 800-1000 g.

As the embodiment of the utility model provides an optimization scheme, the thickness of mylar layer 1 is 0.05mm, and the adhesion is 850 ± 150 g. In this example, the thickness of the silicone gel layer was set to 0.05mm, and the adhesion was set to 850. + -.150 g.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lens protection film characterized in that: include by supreme wheat that sets up in proper order and draw layer, silica gel layer, two-sided adhesive layer and PET layer down, wheat draws the layer to locate the border department on silica gel layer, in silica gel layer extremely the sunken recess that forms of PET layer direction, the tank bottom of recess extends to the lower surface department on PET layer.

2. A lens protective film according to claim 1, wherein: the silica gel layer, two-sided glue film and the PET layer all is incandescent lamp column structure, incandescent lamp column structure have annular portion and in the outside extension that extends of annular portion, the mylar layer is located on the extension of incandescent lamp column structure.

3. A lens protective film according to claim 1, wherein: the thickness of the PET layer is 0.05 mm.

4. A lens protective film according to claim 1, wherein: the thickness of the double-sided adhesive layer is 0.05 mm.

5. A lens protective film according to claim 1, wherein: the thickness of silica gel layer is 0.06 mm.

6. A lens protective film according to claim 1, wherein: the thickness of the mylar layer is 0.05 mm.