CN2603521Y - Injection Molded Image Sensor Module - Google Patents

Abstract

An injection molding image sensor module. In order to provide an image sensor module with accurate assembly and positioning and improved signal receiving precision, the utility model is provided, which comprises an image sensor, an injection molding body and a lens cone with external threads; the image sensor comprises a substrate, a flange layer arranged on the substrate, an image sensing chip electrically connected to the substrate, and a light-transmitting layer covering the flange; the injection molding body wraps the image sensor and is provided with a first end surface, a second end surface and an accommodating chamber formed on the first end surface, and the accommodating chamber is internally provided with an internal thread which corresponds to the external thread of the lens cone and is in screw connection with the external thread of the lens cone; the lens cone is provided with an external thread and a hollow area, and the hollow area is provided with a through hole and an aspheric lens from top to bottom; the lens cone is directly screwed in the containing chamber of the injection molding body.

Description

Injection Molded Image Sensor Module

technical field

The utility model belongs to an image sensor module, in particular to an injection molding image sensor module.

Background technique

As shown in FIG. 1 , a conventional image sensor module includes a lens base 10 , a lens barrel 20 and an image sensor 30 .

The mirror base 10 has an upper end surface 12 , a lower end surface 14 , and an accommodating chamber 16 penetrating from the upper end surface 12 to the lower end surface 14 and forming an internal thread 18 .

The lens barrel 20 is provided with an external thread 22 corresponding to the internal thread 18 of the accommodating chamber 16 of the lens base 10 and screwed therein. There are a light-transmitting area 24 , an aspheric lens 26 and an infrared filter lens 28 from top to bottom. The lens barrel 20 is accommodated in the accommodating chamber 16 by the upper end surface 12 of the lens base 10 , and is screwed with the inner thread 18 of the lens base 10 .

The image sensor 30 has a first surface 32 and a second surface 34 , and the first surface 32 is provided with a transparent layer 36 .

The image sensor 30 is adhered and fixed on the lower end surface 14 of the lens base 10 through the light-transmitting layer 36, and by adjusting the depth of the screwing of the lens barrel 20 and the lens base 10, the aspheric lens 26 of the lens barrel 20 and the The focal length between the transparent layers 36 of the image sensor 30 .

However, in the conventional image sensor module, the light-transmitting layer 36 of the image sensor 30 must be accurately positioned in the accommodating chamber 16 of the mirror base 10, otherwise the received optical signal will be shifted. picture.

Contents of the invention

The purpose of the utility model is to provide an injection molding image sensor module with accurate assembly positioning and improved signal receiving accuracy.

The utility model includes an image sensor, an injection molded body and a lens barrel with external threads; the image sensor includes a substrate, a flange layer arranged on the substrate, an image sensing chip electrically connected to the substrate and covered on the convex The light-transmitting layer on the edge; the injection molded body covers the image sensor, and it is provided with first and second end surfaces and an accommodating chamber formed on the first end surface. Screwed internal thread; lens barrel is provided with external thread and hollowed out area, and the hollowed area is provided with through holes and aspherical lenses from top to bottom; lens barrel is directly screwed into the housing chamber of the injection molded body.

in:

The light-transmitting layer is light-transmitting glass.

There is an infrared filter mirror in the hollow area of the lens barrel.

Because the utility model includes an image sensor, an injection molded body and a lens barrel with external threads; the image sensor includes a substrate, a flange layer arranged on the substrate, electrically connected to the substrate, an image sensing chip and covered on the The light-transmitting layer on the flange; the injection molded body covers the image sensor, which is provided with first and second end surfaces and an accommodating chamber formed on the first end surface. The inner thread is screwed together; the lens barrel is provided with an outer thread and a hollow area, and the hollow area is provided with through holes and aspheric lenses from top to bottom; the lens barrel is directly screw-locked in the accommodating chamber of the injection molded body. During manufacturing, industrial materials are used to form an injection molded body by injection molding to cover the image sensor after packaging, so that the light-transmitting layer of the image sensor can be precisely positioned with the injection molded body; and by The injection-molded accommodation chamber on the injection molding body and the internal thread formed in the accommodation chamber allow the lens barrel to be directly screw-locked in the accommodation chamber of the injection molding body, so that the light-transmitting layer of the image sensor can be connected to the lens barrel Precisely align the position so that it can receive the light signal accurately, thereby improving the conventional image sensor module. In the case of poor reception: not only the assembly and positioning are accurate, but also the accuracy of signal reception is improved, so as to achieve the purpose of the utility model.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a conventional image sensor module structure.

Fig. 2 is a schematic sectional view of the structure of the utility model.

Fig. 3 is a schematic sectional view of the exploded structure of the utility model.

Detailed ways

As shown in FIGS. 2 and 3 , the present invention includes an image sensor 40 , an injection molded body 42 and a lens barrel 44 .

The image sensor 40 includes a substrate 46 , a flange layer 48 , an image sensing chip 50 , a plurality of wires 52 and a transparent layer 54 .

The substrate 46 has an upper surface 56 formed with a plurality of first contacts 60 and a lower surface 58 formed with a plurality of second contacts 62 .

The flange layer 48 is disposed on the upper surface 56 of the substrate 46 and forms a groove 64 with the substrate 46 .

The image sensor chip 50 is disposed in the groove 64 and electrically connected to the first contact 60 of the substrate 46 through a plurality of wires 52 .

The light-transmitting layer 54 is light-transmitting glass covering the upper edge of the flange layer 48 so that the image sensing chip 50 receives light signals through the light-transmitting layer 54 .

The injection molded body 42 is industrial plastic covering the image sensor 40 by injection molding. The injection molded body 42 has first and second end surfaces 66 , 68 and an accommodating chamber 70 formed on the first end surface 66 and internally provided with an internal thread 72 .

The second contact 62 of the lower surface 58 of the substrate 46 of the image sensor 40 is exposed from the second end surface 68 of the injection molded body 42 for electrical connection to the printed circuit board. In this way, the image sensor 40 can receive light signals through the accommodating chamber 70 of the injection molded body 42 .

The lens barrel 44 is provided with an external thread 74 and a hollow area 76 corresponding to the internal thread 72 of the injection molded body 42 and screwed. The hollow area 76 is provided with a through hole 78, an aspheric lens 80 and an infrared filter mirror 82 from top to bottom. .

As mentioned above, when the utility model is manufactured, after the image sensor 40 is packaged, it is covered with industrial materials by injection molding to form an injection molded body 42; at this time, the image sensor 40 The light-transmitting layer 54 can be precisely positioned with the injection molded body 42; and through the injection-molded housing chamber 70 on the injection molded body 42 and the internal thread 72 formed in the housing chamber 70, at this time, the lens barrel 44 can be directly screw-locked in the accommodating chamber 70 of the injection molded body 42, so that the light-transmitting layer 54 of the image sensor 40 can be precisely aligned with the lens barrel 44, so that it can receive optical signals accurately, thereby To improve the conventional image sensor module, when the light-transmitting layer of the image sensor is adhered to the lens barrel, it is easy to cause deviation and cause poor light signal reception.

Claims (3)

1, a kind of ejection formation image sensor module, it comprises image sensor and is provided with externally threaded lens barrel; Image sensor comprises substrate, be located at flange layer on the substrate, be electrically connected on substrate Pi image sensing wafer and be covered in photic zone on the flange; Lens barrel is provided with external screw thread and vacancy section, and vacancy section from top to bottom is provided with open-work and aspherical lens; It is characterized in that described image sensor is coated with the ejection formation body; The ejection formation body is provided with first and second end face and is formed at the accommodation chamber of first end face, is provided with internal thread corresponding with the lens barrel external screw thread and that be spirally connected in the accommodation chamber; The direct screw lock of lens barrel is in the accommodation chamber of ejection formation body.

2, ejection formation image sensor module according to claim 1 is characterized in that described photic zone is a transparent glass.

3, ejection formation image sensor module according to claim 1 is characterized in that being provided with in the described lens barrel vacancy section infrared ray optical filtering minute surface.

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