Periscopic module base capable of reducing stray light interference

Abstract

The utility model relates to a periscopic module base capable of reducing stray light interference. The periscopic module base comprises a base, an accommodating space is formed in the base; the base comprises a base metal plate and a base main body which is injected on the base metal plate through an embedding injection molding process; an anti-reflection layer positioned in the accommodating space is arranged on the first plane of the base metal plate; the base metal plate is blackened, namely the anti-reflection layer is arranged, the light refractive index is reduced, and the purpose of reducing stray light is achieved. Meanwhile, the anti-reflection layer is thin, so that the space can be saved, and the occupation of the accommodating space is avoided; furthermore, compared with the traditional black mylar film pasting process, the production process provided by the anti-reflection layer has the advantage that the manual film pasting cost is more saved; and the connection between the base metal plate and the base main body is more stable, so that the size of the accommodating space is effectively ensured under the condition of ensuring the structural strength.

Description

Technical Field

[0001] The utility model relates to the field of optical imaging, in particular to a periscope module base for reducing stray light interference. Background Art

[0002] The periscope lens structure usually includes two parts, namely the lens part and the prism part, wherein the prism part is arranged at the front end of the periscope part, and the imaging chip is arranged at the rear end of the lens part, and the light is reflected by the prism part and enters the lens part.

[0003] The stray light problem of the periscope lens motor of the mobile phone will cause the image to be damaged. At present, the process of pasting black Mylar sheet is mostly used to solve it, but the Mylar sheet is relatively thick and does not meet the needs of the current thin and light design of motor products. Therefore, it is necessary to find a thinner material to solve the problem of high reflectivity of the base. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a periscope module base which reduces stray light interference.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0006] A periscope module base for reducing stray light interference comprises a base; a containing space is formed in the base; the base comprises a base metal plate and a base body injected onto the base metal plate by an embedded injection molding process; an anti-reflection layer located in the containing space is provided on the first plane of the base metal plate; the thickness of the anti-reflection layer is 0 to 200 μm.

[0007] Furthermore, a plurality of first protrusions extending in a direction away from the first plane are disposed on the first plane.

[0008] Furthermore, a plurality of extension arms flush with the first plane are disposed on the first plane; and a plurality of second protrusions located on the same side of the first plane and extending in a direction away from the first plane are disposed on the extension arms.

[0009] Furthermore, a plurality of third protrusions flush with the first plane are provided on the first plane; and limiting grooves are formed between adjacent third protrusions.

[0010] Furthermore, the other side of the base metal plate relative to the first plane is a second plane; the second plane and the bottom surface of the base body are located in the same plane.

[0011] Furthermore, the anti-reflection layer is black.

[0012] Furthermore, the anti-reflection layer is a sprayed layer.

[0013] Furthermore, the anti-reflection layer is an ink layer.

[0014] Furthermore, the anti-reflection layer is a physical vapor deposition thin film layer.

[0015] Furthermore, the anti-reflection layer is a chemical oxidation layer.

[0016] The beneficial effects of the utility model are: the base metal plate is blackened, that is, an anti-reflection layer is set to reduce the refractive index of light, thereby reducing stray light. At the same time, the anti-reflection layer has a thinner thickness, which can save space and avoid occupying the accommodation space; further, the production process brought by the anti-reflection layer saves more labor patch costs than the traditional process of pasting black Mylar sheets; the connection between the base metal plate and the base body is also more stable, and the size of the accommodation space is effectively guaranteed while ensuring the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is an exploded view of a periscope module including the base of the utility model;

[0019] Figure 2 It is an exploded view of the base of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the base of the utility model;

[0021] Description of reference numerals:

[0022] 100, base; 101, accommodating space; 110, base metal plate; 111, first plane; 112, second plane; 113, first protrusion; 114, extension arm; 115, second protrusion; 116, third protrusion;

[0023] 117, limiting groove; 120, base body; 121, bottom surface; 130, anti-reflection layer; 200, first carrier; 300, second carrier; 400, top cover; 410, light inlet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a periscope module base for reducing stray light interference, wherein the base 100 is used to carry a first carrier 200 and a second carrier 300 arranged side by side; the first carrier 200 is used to install a lens module, so that the lens module can move along the optical axis direction of the lens module in the base 100, and more specifically, a containing space 101 is provided in the base 100, and the first carrier 200 moves along the optical axis direction of the lens module in the containing space 101; at least one side of the first carrier 200 is provided with a driving magnet, and the inner side surface of the containing space 101 is provided with a driving coil corresponding to the driving magnet, and the driving coil cooperates with the driving magnet to drive the lens module to move along the optical axis direction; an adsorption magnet (not shown in the figure) is provided at the bottom of the first carrier 200; the adsorption magnet acts on the bottom of the containing space 101 to generate an adsorption force to strengthen the connection between the first carrier 200 and the base 100; the bottom of the containing space 101 refers to the interaction between the base metal plate 110 and the adsorption magnet;

[0028] A complete periscope mod, such as Figure 1 As shown, a second carrier 300 is also arranged in the accommodating space 101. The second carrier 300 and the first carrier 200 are arranged side by side in the accommodating space 101. The second carrier 300 is used to install a prism module, and drives the prism module to move in different directions under the drive of a corresponding driving mechanism; a top cover 400 is sleeved on the top of the base 100 to form a complete periscope module; a light inlet 410 opposite to the second carrier 300 is provided on the top cover 400, and light enters the prism module in the second carrier 300 through the light inlet 410, and then enters the imaging chip at the rear end of the displacement first carrier 200 along the optical axis direction;

[0029] In one embodiment, if Figure 2 As shown, the base 100 includes a base metal plate 110 and a base body 120; the base body 120 is formed on the base metal plate 110 by an embedded injection process; an anti-reflection layer 130 located in the accommodating space 101 is provided on the first plane 111 of the base metal plate 110; the first plane 111 is arranged relative to the accommodating space 101 and is located at the bottom of the accommodating space 101; by arranging the anti-reflection layer 130 on the first plane 111, the influence of stray light on imaging can be effectively avoided, and at the same time, the base metal plate 110 and the base body 120 are formed by the embedded injection process to reduce the space occupied by the base 100; and the anti-reflection layer 130 can effectively reduce the thickness; in a specific production process, the anti-reflection layer 130 is firstly arranged on the first plane 111 of the base metal plate 110, and then the base body 120 is formed by the embedded injection process, which has the advantages of low cost, high production efficiency and good stability compared with the prior art of later attaching black Mylar film;

[0030] In one embodiment, the anti-reflection layer 130 is a spray coating, which is usually set to black. Through the spraying process, a special coating is sprayed onto the surface of the metal part to reduce the reflectivity of the metal part surface, reduce the glossiness, and better fit the base metal plate 110;

[0031] In one embodiment, the anti-reflection layer 130 is an ink layer, and the ink is black. The ink is pressed onto the surface of the metal part by a pad printing head to print the required matte pattern.

[0032] In one embodiment, the anti-reflection layer 130 is a physical vapor deposition thin film layer, which is formed by electroplating a black coating on a metal surface by PVD to perform matte treatment;

[0033] In one embodiment, the anti-reflection layer 130 is a chemical oxidation layer, which forms an oxide film on the metal surface through a chemical solution, so that the metal surface presents a uniform black color, achieving a matte effect;

[0034] In one embodiment, the thickness of the anti-reflection layer 130 is preferably 0-40 μm, such as 10 μm, 20 μm, or 30 μm;

[0035] In one embodiment, if Figure 2 As shown, the first plane 111 is provided with a plurality of first protrusions 113 extending in a direction away from the first plane 111. When the first protrusions 113 are formed into the base body 120 by an embedded injection molding process, the stability of the connection between the first protrusions 113 and the base body 120 can be effectively enhanced;

[0036] In one embodiment, the other side of the base metal plate 110 relative to the first plane 111 is a second plane 112; Figure 3 As shown, the second plane 112 and the bottom surface 121 of the base body 120 are located in the same plane; that is, the base body 120 is a structure arranged on the circumference of the base metal plate 110 by an embedded injection molding process, the thickness of the base metal plate 110 is the thickness of the base 100 here, and the base metal plate 110 is arranged opposite to the first carrier 200. Such a structural design can ensure that the thickness of the base 100 here is as thin as possible, that is, the space occupied is reduced, and the base metal plate 110 can ensure the strength of the structure here; the first protrusions 113 are usually arranged at intervals along the circumference of the base metal plate 110 to ensure the connection strength between the base metal plate 110 and the base body 120;

[0037] In one embodiment, the first plane 111 is provided with a plurality of extension arms 114 that are flush with the first plane 111; the extension arms 114 are provided with a plurality of second protrusions 115 that are located on the same side of the first plane 111 and extend away from the first plane 111; the extension arms 114 can further increase the connection area with the base body 120, thereby improving stability and strength; Figure 3 As shown, one end surface of the extension arm 114 connected to the second plane 112 is located in the same plane as the bottom surface 121 of the base body 120, which can facilitate embedded injection molding. The base body 120 is mainly wrapped around the other end surface of the extension arm 114 and the circumferential outer edge area of ​​the first plane 111;

[0038] In one embodiment, a plurality of third protrusions 116 flush with the first plane 111 are provided on the first plane 111, and limiting grooves 117 are formed between the third protrusions 116; the structure formed when the limiting grooves 117 are connected to the base body 120 can form an interlocking structure with the base body 120, thereby reducing the possibility of displacement of the base metal plate 110.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A periscope module base for reducing stray light interference, characterized in that: The invention comprises a base (100); a containing space (101) is formed in the base (100); the base (100) comprises a base metal plate (110) and a base body (120) which is injected onto the base metal plate (110) by an embedded injection molding process; an anti-reflection layer (130) located in the containing space (101) is provided on a first plane (111) of the base metal plate (110); the thickness of the anti-reflection layer (130) is 0 to 200 μm.

2. A periscope module base for reducing stray light interference according to claim 1, characterized in that: A plurality of first protrusions (113) extending in a direction away from the first plane (111) are provided on the first plane (111).

3. The periscope module base for reducing stray light interference according to claim 1, characterized in that: The first plane (111) is provided with a plurality of extension arms (114) which are flush with the first plane (111); the extension arms (114) are provided with a plurality of second protrusions (115) which are located on the same side of the first plane (111) and extend in a direction away from the first plane (111).

4. The periscope module base for reducing stray light interference according to claim 1, characterized in that: A plurality of third protrusions (116) flush with the first plane (111) are provided on the first plane (111); and limiting grooves (117) are formed between adjacent third protrusions (116).

5. The periscope module base for reducing stray light interference according to claim 1, characterized in that: The other side of the base metal plate (110) relative to the first plane (111) is a second plane (112); the second plane (112) and the bottom surface (121) of the base body (120) are located in the same plane.

6. A periscope module base for reducing stray light interference according to any one of claims 1 to 5, characterized in that: The anti-reflection layer (130) is black.

7. A periscope module base for reducing stray light interference according to claim 6, characterized in that: The anti-reflection layer (130) is a sprayed layer.

8. The periscope module base for reducing stray light interference according to claim 6, characterized in that: The anti-reflection layer (130) is an ink layer.

9. A periscope module base for reducing stray light interference according to claim 6, characterized in that: The anti-reflection layer (130) is a physical vapor deposition thin film layer.

10. A periscope module base for reducing stray light interference according to claim 6, characterized in that: The anti-reflection layer (130) is a chemical oxidation layer.

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