CN217546140U

CN217546140U - Camera module

Info

Publication number: CN217546140U
Application number: CN202221052835.8U
Authority: CN
Inventors: 刘志华; 吴双成
Original assignee: Sunwin Hubei Optoelectronic Technology Co Ltd
Current assignee: Sunwin Hubei Optoelectronic Technology Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-10-04
Anticipated expiration: 2032-05-05

Abstract

The utility model relates to a camera module, including base plate, light filter, lens cone, the light filter is fixed in the lens cone, be fixed with the sensitization chip on the up end of base plate, the sensitization chip is connected with the base plate electricity, and the sensitization chip is located light filter lower extreme, its characterized in that: the optical filter is characterized in that a square opening window is arranged at the upper end of the lens barrel, a glass sheet is fixed at the square opening window at the upper end of the lens barrel, the square opening window is sealed, a nano-column lens is fixed in the lens barrel, and the nano-column lens is located between the glass sheet and the optical filter. The utility model discloses a camera is conventional module thin on the side relatively at present, and camera formation of image luminance is even unanimous, does not receive the light inlet quantity of aperture size influence.

Description

Camera module

Technical Field

The utility model belongs to the technical field of the camera, concretely relates to camera module.

Background

The mobile phone camera module lens has the advantages that 7 lenses are achieved at present, the limitation is reached, the increase of the lenses can lead the height of the lens to be increased, the back of the mobile phone protrudes too high, the existing lens realizes light gathering and scattering through geometric optics of a conventional geometric aspheric lens, and light penetrates through the lens and is transmitted to the surface of a photosensitive chip, as shown in figure 1, the end face of the conventional camera lens is small at present, the lens is circular, the windowing of the end face of the lens is also circular, and the end face of the lens is of a circular structure, as shown in figure 2.

Disclosure of Invention

The utility model provides a camera module, it adopts square windowing cooperation nanometer post lens can make the camera current conventional module relatively thin partially, and camera formation of image luminance is even unanimous, does not receive the light inlet quantity of light ring size influence.

The utility model discloses a realize like this: the utility model discloses a camera module, including base plate, light filter, lens cone, the light filter is fixed in the lens cone, be fixed with the sensitization chip on the up end of base plate, the sensitization chip is connected with the base plate electricity, and the sensitization chip is located the light filter lower extreme, the lens cone upper end is equipped with square windowing, the square windowing department of lens cone upper end is fixed with the glass piece, seals square windowing, the lens cone internal fixation has the nanometer post lens, the nanometer post lens is located between glass piece and the light filter.

Further, the lens barrel is square in shape.

Further, the lens barrel is of a stepped square structure in appearance; the step square structure comprises a first square lens barrel section, a second square lens barrel section and a third square lens barrel section which are sequentially connected from bottom to top, the shape length of the first square lens barrel section, the second square lens barrel section and the third square lens barrel section is gradually decreased, the shape width of the first square lens barrel section, the second square lens barrel section and the third square lens barrel section is gradually decreased, a first horizontal step surface is formed between the vertical side wall of the first square lens barrel section and the vertical side wall of the second square lens barrel section, a second horizontal step surface is formed between the vertical side wall of the second square lens barrel section and the vertical side wall of the third square lens barrel section, and the upper end face of the third square lens barrel section is provided with a square window.

Further, from the bottom up is equipped with first rectangle cavity, second rectangle cavity, third rectangle cavity in proper order in the lens cone, and the length of first rectangle cavity, second rectangle cavity, third rectangle cavity is steadilyd decrease in proper order, and the width of first rectangle cavity, second rectangle cavity, third rectangle cavity is steadilyd decrease in proper order, makes form first step, second step, third step in proper order from the bottom up in the lens cone, the light filter is fixed on the horizontal step face of first step, the nanopillar lens is fixed on the horizontal step face of second step, and the glass piece is fixed on the horizontal step face of third step.

Furthermore, the optical filter is fixedly bonded on the horizontal step surface of the first step, the nano-column lens is fixedly bonded on the horizontal step surface of the second step, and the glass sheet is fixedly bonded on the horizontal step surface of the third step.

Further, the glass sheet is square; the optical filter is square; the nano-pillar lens is square.

Furthermore, the edge of the upper end face of the glass sheet is provided with a silk-screen layer to form an annular silk-screen area, and the middle of the annular silk-screen area is a light-transmitting area.

The size of the silk-screen area is set according to the requirement, and the size requirements of the silk-screen area are different according to different photosensitive chips and are determined through experiments.

Furthermore, the glass sheet is fixed in the lens barrel and is positioned on the bottom surface of a top plate of the lens barrel; the top plate of the lens barrel is provided with a square window, and the outer edge of the square window is provided with a chamfer inclined plane.

The utility model discloses following beneficial effect has: the end face of the lens is a square window, and the inner structure of the lens is provided with a sectional step assembled glass sheet, a nano-column lens and an optical filter, so that the camera of the utility model is thinner than the current conventional module, and the imaging brightness of the camera is uniform and consistent, and the light inlet quantity is not influenced by the size of the light ring.

The utility model discloses a surperficial glass piece needs add the silk screen printing, and the glass piece plays the surface protection effect, prevents external fish tail and the dirty direct formation of image black dot that forms at super lens surface formation of image of super lens, increases the silk screen printing and can prevent the veiling glare problem that the lens cone terminal surface edge of windowing leads to. The size of the silk-screen area is set according to the requirement, and the size requirements of the silk-screen area are different according to different photosensitive chips and are determined through experiments.

Drawings

FIG. 1 is a schematic diagram of the optical path principle of a conventional geometric lens;

fig. 2 is a schematic structural view of a conventional lens module (the lens end face is a circular structure);

FIG. 3 is a schematic diagram of the optical path principle of the nanopillar lens;

fig. 4 is a schematic structural diagram of a camera module according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a camera module according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a glass sheet according to an embodiment of the present invention.

In the attached drawing, 1 is a substrate, 2 is a photosensitive chip, 3 is a lens barrel, 31 is a square window, 32 is a first rectangular cavity, 33 is a second rectangular cavity, 34 is a third rectangular cavity, 4 is an optical filter, 5 is a nano-column lens, 51 is a nano-column, 6 is a glass sheet, 61 is an annular silk-screen area, and 62 is a light-transmitting area.

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.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 3 to 6, the embodiment discloses a camera module, which includes a substrate 1, a light filter 4, and a lens barrel 3, wherein the light filter 4 is fixed in the lens barrel 3, a photosensitive chip 2 is fixed on an upper end surface of the substrate 1, the photosensitive chip 2 is electrically connected with the substrate 1, the photosensitive chip 2 is located at a lower end of the light filter 4, a square opening window 31 is arranged at an upper end of the lens barrel 3, a glass sheet 6 is fixed at the square opening window 31 at an upper end of the lens barrel 3, the square opening window 31 is sealed, a nano-column lens 5 for gathering light to the surface of the photosensitive chip 2 through a nano-column 51 (nano light guide column) is fixed in the lens barrel 3, and the nano-column lens 5 is located between the glass sheet 6 and the light filter 4.

Further, the lens barrel 3 is square in shape.

Further, the lens barrel 3 is of a stepped square structure; the square structure of ladder includes 3 sections of first square lens cone, 3 sections of second square lens cone, 3 sections of third square lens cone that from the bottom up connected gradually, 3 sections of first square lens cone, 3 sections of second square lens cone, the appearance length of 3 sections of third square lens cone is steadilyd decrease in proper order, 3 sections of first square lens cone, 3 sections of second square lens cone, the appearance width of 3 sections of third square lens cone is steadilyd decrease in proper order, form first horizontal step face between the vertical lateral wall of 3 sections of first square lens cone and the vertical lateral wall of 3 sections of second square lens cone, form second horizontal step face between the vertical lateral wall of 3 sections of second square lens cone and the vertical lateral wall of 3 sections of third square lens cone, the up end of 3 sections of third square lens cone is equipped with square opening window 31.

Further, from the bottom up is equipped with first rectangle cavity 32, second rectangle cavity 33, third rectangle cavity 34 in proper order in lens cone 3, and the length of first rectangle cavity 32, second rectangle cavity 33, third rectangle cavity 34 diminishes in proper order, and the width of first rectangle cavity 32, second rectangle cavity 33, third rectangle cavity 34 diminishes in proper order, makes first step, second step, third step of from the bottom up formation in proper order in the lens cone 3, light filter 4 fixes on the horizontal step face of first step, nanopillar lens 5 is fixed on the horizontal step face of second step, and glass piece 6 is fixed on the horizontal step face of third step.

Furthermore, the optical filter 4 is fixedly bonded on the horizontal step surface of the first step, the nanorod lens 5 is fixedly bonded on the horizontal step surface of the second step, and the glass sheet 6 is fixedly bonded on the horizontal step surface of the third step.

Further, the glass sheet 6 is square; the optical filter 4 is square; the nano-pillar lens 5 is square.

Further, the glass sheet 6 is fixed in the lens barrel 3 and is positioned on the bottom surface of the top plate of the lens barrel 3; a square opening window 31 is arranged on the top plate of the lens barrel 3, and a chamfer inclined plane is arranged at the outer edge of the square opening window 31.

The nano-column lens 5 is of a plane structure, and a nano light guide column is arranged inside the nano-column lens to gather light to the surface of the photosensitive chip 2. The external light is parallel light, so the end face window of the lens is in accordance with the square window 31 of the chip photosensitive area, the end face structure of the module lens is in a square structure, and the size of the square is changed according to the change of pixels.

As shown in fig. 6, further, a silk-screen layer is disposed on an edge of an upper end surface of the glass sheet 6 to form an annular silk-screen area 61, and a light-transmitting area 62 is disposed in the middle of the annular silk-screen area 61. The utility model discloses a 6 needs of surperficial glass pieces add the silk screen printing, and 6 play surface protection effects of glass pieces prevent external fish tail and the dirty direct formation of image black point that forms on super lens surface to super lens, increase the silk screen printing and can prevent that 3 terminal surfaces of lens cone from windowing the miscellaneous light problem that the edge leads to. The size of the silk-screen area is set according to the requirement, and the size requirements of the possible silk-screen areas of different photosensitive chips 2 are different and are determined through experiments. The light transmitting area 62 is smaller than the square opening window area.

The end face of the lens is a square window 31, and the inner structure of the lens is provided with a sectional step assembly glass sheet 6, a nano-column lens 5 and an optical filter 4, so that the camera of the utility model is thinner than the conventional module at present, and the imaging brightness of the camera is uniform and consistent, and the light inlet quantity is not influenced by the size of the light ring.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a camera module, includes base plate, light filter, lens cone, the light filter is fixed in the lens cone, be fixed with sensitization chip on the up end of base plate, sensitization chip is connected with the base plate electricity, and sensitization chip is located the light filter lower extreme, its characterized in that: the optical filter is characterized in that a square opening window is arranged at the upper end of the lens barrel, a glass sheet is fixed at the square opening window at the upper end of the lens barrel, the square opening window is sealed, a nano-column lens is fixed in the lens barrel, and the nano-column lens is located between the glass sheet and the optical filter.

2. The camera module of claim 1, wherein: the lens cone is square in shape.

3. The camera module of claim 2, wherein: the lens cone is of a stepped square structure; the step square structure comprises a first square lens barrel section, a second square lens barrel section and a third square lens barrel section which are sequentially connected from bottom to top, the shape length of the first square lens barrel section, the second square lens barrel section and the third square lens barrel section is gradually decreased, the shape width of the first square lens barrel section, the second square lens barrel section and the third square lens barrel section is gradually decreased, a first horizontal step surface is formed between the vertical side wall of the first square lens barrel section and the vertical side wall of the second square lens barrel section, a second horizontal step surface is formed between the vertical side wall of the second square lens barrel section and the vertical side wall of the third square lens barrel section, and the upper end face of the third square lens barrel section is provided with a square window.

4. The camera module of claim 1, 2 or 3, wherein: the optical filter is fixed on the horizontal step surface of the first step, the nano-column lens is fixed on the horizontal step surface of the second step, and the glass sheet is fixed on the horizontal step surface of the third step.

5. The camera module of claim 4, wherein: the optical filter is fixedly bonded on the horizontal step surface of the first step, the nanorod lens is fixedly bonded on the horizontal step surface of the second step, and the glass sheet is fixedly bonded on the horizontal step surface of the third step.

6. The camera module of claim 1, wherein: the glass sheet is square; the optical filter is square; the nano-pillar lens is square.

7. The camera module of claim 1, wherein: the edge of the upper end face of the glass sheet is provided with a silk-screen layer to form an annular silk-screen area, and the middle of the annular silk-screen area is a light transmission area.

8. The camera module of claim 1, wherein: the glass sheet is fixed in the lens cone and is positioned on the bottom surface of the top plate of the lens cone; the top plate of the lens barrel is provided with a square window, and the outer edge of the square window is provided with a chamfer inclined plane.