CN212628099U - camera equipment - Google Patents

Abstract

An imaging device, comprising a filter assembly and a photosensitive device, the filter assembly includes a front concave lens, a middle convex lens and a back convex lens arranged in sequence, the main optical axis of the front concave lens, the main optical axis of the middle convex lens and the main optical axis of the back convex lens Collinear arrangement, the front concave lens is used to convert the converging scattered light into the first beam of parallel light, and the focal point of the middle convex lens and the focal point of the rear convex lens are arranged at the same point, so that the first beam of parallel light is converted into a beam for illuminating the photosensitive device. The second beam of parallel light on the photosensitive surface, and the cross-sectional area of the first beam of parallel light is larger than the cross-sectional area of the second beam of parallel light; there are multiple groups of filter components, and the main optical axes of these groups of filter components are arranged in parallel, and The effective imaging area of any group of filter components can be covered by the effective imaging area of its adjacent filter components. Doping ambient noise can be distinguished significantly in its imaging images.

Description

Image pickup apparatus

Technical Field

The utility model relates to a camera equipment technical field, concretely relates to camera equipment.

Background

In some occasions, more floating dust exists in the environment or haze exists for a long time, so that more noise exists in an imaging image of the camera equipment, and the image recognition effect and the recognition efficiency are influenced.

Patent document CN207352265U describes a camera module including: a prism; a first convex lens disposed at one side of the triangular prism; the concave lens is arranged on one side, away from the triangular prism, of the first convex lens; the second convex lens is arranged on one side, away from the first convex lens, of the concave lens; the driving device is connected with the concave lens and is used for driving the concave lens to move in the direction of the optical axis of the concave lens; wherein an optical axis of the first convex lens, an optical axis of the concave lens, and an optical axis of the second convex lens coincide. The high-power optical zoom function is realized mainly by adjusting the positions of the concave lens, the first convex lens and the second convex lens.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a camera equipment to the solution is applied to the technical problem that the image quality is influenced to the miscellaneous point of doping environment in camera equipment's the formation of image in adverse circumstances.

The technical scheme of the utility model is that:

the camera shooting equipment comprises a light filtering component and a photosensitive device, wherein the light filtering component comprises a front concave lens, a middle convex lens and a rear convex lens which are sequentially arranged, a main optical axis of the front concave lens, a main optical axis of the middle convex lens and a main optical axis of the rear convex lens are arranged in a collinear mode, the front concave lens is used for converting convergent scattered light into a first beam of parallel light, a focus of the middle convex lens and a focus of the rear convex lens are arranged in a concurrent mode, so that the first beam of parallel light is converted into a second beam of parallel light which is used for irradiating a photosensitive surface of the photosensitive device, and the cross-sectional area of the first beam of parallel light is larger than that of the second beam of parallel light; the optical filtering components are provided with a plurality of groups, the main optical axes of the optical filtering components are arranged in parallel, and the effective image capturing area of any one group of optical filtering components can be covered by the effective image capturing area of the adjacent optical filtering component.

Preferably, the light filtering component further comprises a light shielding wall body arranged between the light filtering components, and the light shielding wall body is used for connecting adjacent front concave lenses, or used for connecting adjacent middle convex lenses, or used for connecting adjacent rear convex lenses.

Preferably, the light filtering component further comprises a light shielding shell, the front concave lens, the middle convex lens, the rear convex lens and the photosensitive device are all statically connected with the light shielding shell, and a light transmission window used for enabling light rays to be irradiated on the photosensitive surface of the photosensitive device through the light filtering component is arranged at the corresponding position of the light shielding shell.

Further, still including being used for forming the dust separation light-passing board of printing opacity window, preceding concave lens convex lens back convex lens with photosensitive device sets up the dust separation light-passing board with the sealed intracavity that the shading casing formed.

Preferably, the photosensitive device includes at least one of a CCD photosensitive element and a CMOS photosensitive element.

The utility model has the advantages that:

1. the utility model discloses in, preceding concave lens are used for making convergence scattered light transform to a first bundle of parallel light, like this, when array and intensive setting preceding concave lens, concave lens get for instance the region all can cover partial or whole rather than adjacent preceding concave lens get for instance the region before each, according to the propagation principle of light, the light that same floating dust sheltered from is after the filtering of the filtering subassembly of different groups, correspond the formation of image in the different positions of formation of image, and the point of getting image face is continuous, it is after the filtering of the filtering subassembly of different groups, it can not change at the position relation of formation of image in the formation of image to correspond the formation of image. Therefore, doped environment noise points can be distinguished remarkably, the environment noise points doped in the imaging image of the camera equipment are filtered through the joint of the image obtained by the photosensitive device, and the adverse effect of the environment noise points can be reduced by repeatedly identifying the same area when image identification software is utilized. The convex lens and the rear convex lens are matched, so that the first beam of parallel light is converted into the second beam of parallel light for irradiating on the photosensitive surface of the photosensitive device, and the sectional area of the first beam of parallel light is larger than that of the second beam of parallel light, thereby being beneficial to reducing the area requirement of the photosensitive device, and being capable of filtering the adverse effect of scattered light which is not on the light path on an imaging image by strictly limiting a light filtering path. If leave back convex lens, though only can realize gathering of light through convex lens still, its formation of image is unbalance on photosensitive surface of photosensitive device, and the utility model discloses a convex lens cooperates with back convex lens, can avoid this phenomenon.

2. The shading wall body can more effectively prevent scattered light from irradiating on the photosensitive device through the light-transmitting piece, and the light-shielding wall body also forms a part of the filtering component.

3. The shading shell can also effectively prevent scattered light from irradiating on the photosensitive device through the light-transmitting piece, and the shading shell is used for fixing the filtering component and the photosensitive device and also forms a part of the filtering component.

4. The dust-proof light-passing board and the shading shell are matched to form a sealed cavity, so that the maintenance difficulty of the light filtering component can be reduced, dust is prevented from being adhered to the light-passing component, and the difficulty of cleaning the light filtering component can be reduced.

5 CCD light sensing element's sensitization principle is line-by-line scanning formula formation of image, and it is effectual to the formation of image of parallel light, that is to say, it with the utility model discloses a filtering component cooperation, the proportion relation unbalance of the formation of image of formation of image is little. The CMOS imaging element has a surface imaging principle, which is not good for spherical light but does not have adverse effects on parallel light.

Drawings

Fig. 1 is a front view of the camera device of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is an illustration of the image capturing plane corresponding to the light filtering component on the imaging plane during the image capturing device.

Fig. 4 is a schematic cross-sectional view of the filter assembly at a section B-B of fig. 3 taken on an image plane.

The reference number indicates, 10-light-shading shell, 11-dust-proof light-transmitting plate, 12-detachable connecting piece, 13-light-shading wall body, 21-front concave lens, 22-middle convex lens, 23-back convex lens and 3-photosensitive device.

Detailed Description

The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.

The utility model discloses a camera equipment includes filtering component and photosensitive device 3.

Referring to fig. 1-2, the filter assembly includes a front concave lens 21, a middle convex lens 22, and a rear convex lens 23, which are sequentially disposed, in each set of filter assembly, a main optical axis of the front concave lens 21, a main optical axis of the middle convex lens 22, and a main optical axis of the rear convex lens 23 are disposed collinearly, the front concave lens 21 is configured to convert the convergent scattered light into a first beam of parallel light, a focal point of the middle convex lens 22 is disposed in a same point with a focal point of the rear convex lens 23, so that the first beam of parallel light is converted into a second beam of parallel light for irradiating on the photosensitive surface of the photosensitive device 3, and a cross-sectional area of the first beam of parallel light is greater than a cross-sectional area of the second beam of parallel light.

The optical filtering components are provided with a plurality of groups, the main optical axes of the optical filtering components are arranged in parallel, and the effective image capturing area of any one group of optical filtering components can be covered by the effective image capturing area of the adjacent optical filtering component. Referring to fig. 3-4, on the image-taking plane shown in fig. 4, the effective image-taking area of the central set of filter assemblies can be covered by the effective image-taking areas of the adjacent 3 sets to 6 sets of filter assemblies. The effective image capturing area of one set of filter elements at the edge can be covered by the effective image capturing area of the adjacent 3-4 sets of filter elements. The effective image capturing area of one set of the optical filtering assemblies is an image capturing area which can be sensed by the matched photosensitive devices and can be covered by the image capturing areas sensed by one, two or more sets of the photosensitive devices around the effective image capturing area.

Preferably, the filter assembly further comprises light blocking walls 13 for being disposed between the filter assemblies, the light blocking walls 13 being for connecting adjacent front concave lenses 21, or for connecting adjacent convex lenses 22, or for connecting adjacent convex rear lenses 2323.

Preferably, the light filtering assembly further comprises a light shielding shell 10, the front concave lens 21, the middle convex lens 22, the rear convex lens 23 and the photosensitive device 3 are all connected with the light shielding shell 10, and a light transmitting window for enabling light to irradiate on a photosensitive surface of the photosensitive device through the light filtering assembly is arranged at a corresponding position of the light shielding shell 10.

Further, the dust-proof light-transmitting plate 11 for forming the light-transmitting window is further included, and the front concave lens 21, the middle convex lens 22, the rear convex lens 23 and the photosensitive device 3 are arranged in a sealed cavity formed by the dust-proof light-transmitting plate 11 and the light-shielding shell 10.

Preferably, the light sensing device 3 includes at least one of a CCD light sensing element and a CMOS light sensing element.

Referring to fig. 4, the vertical dashed line shown in fig. 4 and the object on the left side thereof are both within the effective image capturing area of the image capturing apparatus.

The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that this description is not exhaustive of all possible embodiments, and that the inventive concepts are presented herein by way of illustration to the extent possible. Without departing from the inventive concept of the present invention and without paying creative labor, the technical features of the above embodiments are combined, the specific parameters are changed by experiment, or the prior art in the technical field is used to carry out the specific implementation manner of conventional replacement formation by the disclosed technical means, which all belong to the content hidden in the present invention.

Claims (5)

1. The camera shooting equipment comprises a filter component and a photosensitive device, and is characterized in that the filter component comprises a front concave lens, a middle convex lens and a rear convex lens which are sequentially arranged, wherein a main optical axis of the front concave lens, a main optical axis of the middle convex lens and a main optical axis of the rear convex lens are arranged in a collinear manner, the front concave lens is used for converting convergent scattered light into a first beam of parallel light, a focus of the middle convex lens and a focus of the rear convex lens are arranged in a concurrent manner, so that the first beam of parallel light is converted into a second beam of parallel light which is used for irradiating a photosensitive surface of the photosensitive device, and the cross-sectional area of the first beam of parallel light is larger than that of the second beam of parallel light; the optical filtering components are provided with a plurality of groups, the main optical axes of the optical filtering components are arranged in parallel, and the effective image capturing area of any one group of optical filtering components can be covered by the effective image capturing area of the adjacent optical filtering component.

2. The image capture device of claim 1, wherein the filter assembly further comprises light blocking walls for positioning between the filter assemblies, the light blocking walls for connecting adjacent anterior concave lenses, or for connecting adjacent medial convex lenses, or for connecting adjacent posterior convex lenses.

3. The image capturing apparatus according to claim 1, wherein the filter assembly further includes a light shielding housing, the front concave lens, the middle convex lens, the rear convex lens, and the light sensing device are all statically connected to the light shielding housing, and a light transmitting window is provided at a corresponding position of the light shielding housing, so that light can be irradiated onto a light sensing surface of the light sensing device through the filter assembly.

4. The image pickup apparatus according to claim 3, further comprising a dust-proof light-transmitting plate for forming said light-transmitting window, wherein said front concave lens, said convex lens, said rear convex lens and said light-sensing device are disposed in a sealed chamber formed by said dust-proof light-transmitting plate and said light-shielding case.

5. The image pickup apparatus according to claim 1, wherein the light sensing means includes at least one of a CCD light sensing element and a CMOS light sensing element.

Images