CN217957185U - Image sensor with a plurality of pixels - Google Patents
Image sensor with a plurality of pixels Download PDFInfo
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- CN217957185U CN217957185U CN202222277412.2U CN202222277412U CN217957185U CN 217957185 U CN217957185 U CN 217957185U CN 202222277412 U CN202222277412 U CN 202222277412U CN 217957185 U CN217957185 U CN 217957185U
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Abstract
The utility model provides an image sensor. The image sensor includes: a frame body; the circuit board is arranged in the frame body; the lens structures are arranged in the frame body and are arranged at intervals with the circuit board, the number of the lens structures is multiple, and the lens structures are sequentially arranged along the scanning direction; the photoelectric conversion chips are arranged in one-to-one correspondence with the lens structures; the light source structure, image sensor's detection object plane is located the outside of framework and is located one side that the lens structure keeps away from the circuit board, the light source structure is located between framework and the detection object plane, the light source structure includes main illuminating part and compensation illuminating part, at least one side of main illuminating part is provided with the compensation illuminating part, the range density of the compensation illuminating part of one side is less than the range density of main illuminating part, the slope of light source structure sets up to the light slope that makes the light source structure transmission shines on detecting the object plane. The problem that an image sensor in the prior art is uneven in brightness is solved.
Description
Technical Field
The utility model relates to a photoelectric equipment technical field particularly, relates to an image sensor.
Background
With the continuous progress of technology and the growing demand of the market for low cost products, machine vision has increasingly increased penetration rate in industry due to its unique advantages. In modern mass production, quality detection of products and quality control in the production process are of great importance, and machine vision equipment can be applied in industry, such as printing quality detection, appearance detection of mechanical parts, appearance detection of product packages and the like. The machine vision technology is gradually ascended at the key position of the manufacturing industry due to the advantages of high resolution, high accuracy, high speed, objectivity, repeatability, reliability and the like, the intelligent process of industrial development is promoted, and the machine vision technology has higher market demand.
The types of machine vision equipment are various, and an image sensor is taken as an example. Based on the requirement of the industrialized market, an image sensor for imaging by multiple lenses is designed. In the actually scanned images, it is found that the four corner positions of each image are the darkest regions, which results in too large brightness difference and uneven brightness of the final image, and is not favorable for the subsequent image algorithm correction.
That is, the related art image sensor has a problem of non-uniformity in luminance.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide an image sensor to solve the problem of uneven brightness of the image sensor in the prior art.
In order to achieve the above object, the present invention provides an image sensor, including: a frame body; the circuit board is arranged in the frame body; the lens structures are arranged in the frame body and are arranged at intervals with the circuit board, the number of the lens structures is multiple, and the lens structures are sequentially arranged along the scanning direction; the photoelectric conversion chips are arranged on the circuit board and positioned on the surface of one side, facing the lens structures, of the circuit board, the photoelectric conversion chips are multiple, and the multiple photoelectric conversion chips and the multiple lens structures are arranged in a one-to-one correspondence mode; the light source structure, image sensor's detection object plane is located the outside of framework and is located one side that the lens structure keeps away from the circuit board, the light source structure is located between framework and the detection object plane, the light source structure includes main illuminating part and compensation illuminating part, at least one side of main illuminating part is provided with the compensation illuminating part, the range density of the compensation illuminating part of one side is less than the range density of main illuminating part, the slope of light source structure sets up to the light slope that makes the light source structure transmission shines on detecting the object plane.
Furthermore, the light source structure extends along the scanning direction, the main light-emitting pieces are multiple, the main light-emitting pieces are arranged at intervals along the scanning direction, the compensation light-emitting pieces are multiple, the two sides of the main light-emitting pieces are provided with the compensation light-emitting pieces, and the arrangement direction of the compensation light-emitting pieces on the same side is the same as that of the main light-emitting pieces.
Furthermore, the lens structure is correspondingly provided with compensation light-emitting pieces at four corner positions of a scanned image on the object detection surface; and/or a plurality of scanning images of the lens structures on the detection object plane are sequentially spliced, and a group of shared compensation light-emitting pieces are correspondingly arranged at the splicing positions of two adjacent scanning images in the plurality of scanning images.
Further, the main light emitting element and the compensation light emitting element are both LEDs.
Further, the light source structure includes: a light source frame; a light source substrate disposed within the light source frame; the main light-emitting piece and the compensation light-emitting piece are carried on the light source substrate, the main light-emitting piece and the compensation light-emitting piece are arranged at intervals, and light emitting surfaces of the main light-emitting piece and the compensation light-emitting piece are located on the same plane.
Furthermore, the compensation light-emitting pieces on different sides are arranged oppositely, and the compensation light-emitting pieces on the same side are arranged at equal intervals.
Further, the interval between two adjacent main light-emitting pieces in the plurality of main light-emitting pieces is more than or equal to 0.6mm and less than or equal to 1mm; and/or the interval between two adjacent compensating light-emitting pieces in the plurality of compensating light-emitting pieces on the same side is greater than or equal to 12.5mm and less than or equal to 13.5mm.
Further, the image sensor further comprises a spherical lens, and the spherical lens is arranged on the compensation light-emitting piece and is positioned on the light-emitting side of the compensation light-emitting piece.
Further, the diameter of the spherical lens is larger than or equal to the size of the compensation light-emitting piece.
Furthermore, the light emitting surfaces of the main light emitting piece and the compensation light emitting piece are positioned on the same plane, and the distance between the main light emitting piece and the detection object surface is more than or equal to 40mm and less than or equal to 50mm; the distance between the compensation light-emitting piece and the object detection surface is more than or equal to 40mm and less than or equal to 50mm.
Furthermore, the light source structure also comprises an oxidation coating, and the outer wall surface of the light source frame is provided with the oxidation coating.
By applying the technical scheme of the utility model, the image sensor comprises a frame body, a circuit board, a lens structure, a photoelectric conversion chip and a light source structure, wherein the circuit board is arranged in the frame body; the lens structures are arranged in the frame body and are arranged at intervals with the circuit board, the number of the lens structures is multiple, and the lens structures are sequentially arranged along the scanning direction; the photoelectric conversion chips are mounted on the circuit board and positioned on the surface of one side of the circuit board, which faces the lens structures, the photoelectric conversion chips are multiple, and the multiple photoelectric conversion chips are arranged in one-to-one correspondence with the multiple lens structures; the detection object plane of the image sensor is located outside the frame body and located on one side, far away from the circuit board, of the lens structure, the light source structure is located between the frame body and the detection object plane, the light source structure comprises a main light-emitting piece and a compensation light-emitting piece, at least one side of the main light-emitting piece is provided with the compensation light-emitting piece, the arrangement density of the compensation light-emitting piece on one side is smaller than that of the main light-emitting piece, and the light source structure is obliquely arranged so that light emitted by the light source structure is obliquely irradiated on the detection object plane.
Through setting up the framework for the framework provides the mounted position for circuit board, lens structure and photoelectric conversion chip, has improved the reliability in utilization of circuit board, lens structure, photoelectric conversion chip, has guaranteed image sensor's structural stability. The lens structures are sequentially arranged along the scanning direction, so that the image sensor adopts a mode of splicing the lens structures to realize the scanning of a strip-shaped image, the scanning area is increased, and the requirement of large-area scanning can be met. The photoelectric conversion chip is carried on the circuit board and is located on one side surface of the circuit board towards the lens structure, the photoelectric conversion chip is multi-disc, multi-disc photoelectric conversion chip and a plurality of lens structure one-to-one setting, the setting makes the circuit board provide the circuit for the photoelectric conversion chip like this, realize the transmission of signal, multi-disc photoelectric conversion chip and a plurality of lens structure one-to-one setting, so that the image information that lens structure department transmitted can be received to the photoelectric conversion chip, make the photoelectric conversion chip carry out the accumulation of electric charge when being used for the sensitization, convert light signal into the signal of telecommunication, with the transmission and the conversion of realization signal, guarantee image transmission's stability. The light source structure is located between the frame body and the detection object surface, the light source structure provides the light source for detecting the object surface, the light source structure includes main illuminating part and compensation illuminating part, at least one side of main illuminating part is provided with the compensation illuminating part, the light source structure slope sets up, so that the light slope of light source structure transmission shines on detecting the object surface, the central point of a plurality of lens structures that main illuminating part corresponds when shining on detecting the object surface puts at the image on the detection object surface, in order to guarantee that the luminance at image center is higher, be provided with the compensation illuminating part through at least one side at main illuminating part, make the compensation illuminating part play the effect of compensation luminance, so that what make the compensation illuminating part corresponding when shining on detecting the object surface is the bight position of a plurality of lens structures image on detecting the object surface, thereby carry out luminance compensation to image edge dark region, thereby avoid the dark condition in center bright edge, the luminance homogeneity of image has been improved greatly, the degree of difficulty of follow-up image processing has been reduced.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:
FIG. 1 shows a schematic diagram of a prior art image sensor;
FIG. 2 shows a scanned image of the image sensor of FIG. 1;
fig. 3 shows a schematic diagram of an image sensor of an alternative embodiment of the invention;
FIG. 4 is a schematic view showing the arrangement of the main light emitting element and the compensation light emitting element on the one light source structure of FIG. 3;
fig. 5 shows a schematic diagram of an image sensor according to another alternative embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a frame body; 20. a circuit board; 30. a lens structure; 40. a photoelectric conversion chip; 50. a light source structure; 51. a light source frame; 52. a light source substrate; 53. a main light emitting member; 54. a compensating light emitting member; 55. a spherical lens; 60. detecting an object surface; 61. corner position.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; similarly, "inner and outer" refer to the inner and outer relative to the contours of the components themselves for ease of understanding and description, but the above directional terms are not intended to limit the invention.
As shown in fig. 1 and 2, are schematic diagrams of a prior art image sensor. Fig. 1 is a schematic diagram of a prior art image sensor. As shown in fig. 2, the scanned image of the image sensor in fig. 1 shows the effect before correction. In the view of a scanned image, the corner position 61 of each image corresponds to the darkest region of the image, so that the difference between the brightness of the central region of the image and the brightness of the corner position 61 is too large, the brightness of the image is not uniform, and the subsequent image algorithm processing is influenced. The imaging effect of 6 images is shown.
In order to solve the problem that the image sensor in the prior art has the luminance inhomogeneous, the utility model provides an image sensor.
As shown in fig. 3 to 5, the image sensor includes a frame body 10, a circuit board 20, a lens structure 30, a photoelectric conversion chip 40, and a light source structure 50, the circuit board 20 being disposed within the frame body 10; the lens structures 30 are arranged in the frame body 10 and spaced from the circuit board 20, the number of the lens structures 30 is multiple, and the multiple lens structures 30 are sequentially arranged along the scanning direction; the photoelectric conversion chips 40 are carried on the circuit board 20 and are positioned on the surface of one side of the circuit board 20 facing the lens structures 30, the photoelectric conversion chips 40 are multiple, and the multiple photoelectric conversion chips 40 and the multiple lens structures 30 are arranged in a one-to-one correspondence manner; the detection object surface 60 of the image sensor is located outside the frame body 10 and on one side of the lens structure 30 away from the circuit board 20, the light source structure 50 is located between the frame body 10 and the detection object surface 60, the light source structure 50 includes a main light emitting element 53 and a compensation light emitting element 54, at least one side of the main light emitting element 53 is provided with the compensation light emitting element 54, the arrangement density of the compensation light emitting element 54 on one side is smaller than that of the main light emitting element 53, and the light source structure 50 is obliquely arranged so that light emitted by the light source structure 50 obliquely irradiates on the detection object surface 60.
Through setting up framework 10 for framework 10 provides the mounted position for circuit board 20, lens structure 30 and photoelectric conversion chip 40, has improved the reliability in utilization of circuit board 20, lens structure 30, photoelectric conversion chip 40, has guaranteed image sensor's structural stability. The lens structures 30 are sequentially arranged along the scanning direction, so that the image sensor of the present application adopts a manner of splicing the lens structures 30 to scan a strip-shaped image, thereby increasing the scanning area and meeting the requirement of large-area scanning. The photoelectric conversion chip 40 is carried on the circuit board 20 and is located on a side surface of the circuit board 20 facing the lens structures 30, the photoelectric conversion chip 40 is a plurality of chips, the plurality of photoelectric conversion chips 40 and the plurality of lens structures 30 are arranged in a one-to-one correspondence manner, so that the circuit board 20 provides a circuit for the photoelectric conversion chip 40 to realize signal transmission, the plurality of photoelectric conversion chips 40 and the plurality of lens structures 30 are arranged in a one-to-one correspondence manner, so that the photoelectric conversion chip 40 can receive image information transmitted from the lens structures 30, the photoelectric conversion chip 40 is used for accumulating charges while being sensitive to light, an optical signal is converted into an electrical signal, signal transmission and signal conversion are realized, and the stability of image transmission is ensured. The light source structure 50 is located between the frame 10 and the object plane 60, the light source structure 50 provides a light source for the object plane 60, the light source structure 50 includes a main light emitting element 53 and a compensation light emitting element 54, at least one side of the main light emitting element 53 is provided with the compensation light emitting element 54, the light source structure 50 is obliquely arranged so that light emitted by the light source structure 50 is obliquely irradiated on the object plane 60, the main light emitting element 53 irradiates on the object plane 60 and corresponds to a central position of an image of the lens structures 30 on the object plane 60, so as to ensure that the brightness of the center of the image is high, the compensation light emitting element 54 is provided on at least one side of the main light emitting element 53, so that the compensation light emitting element 54 plays a role of compensating the brightness, so that the compensation light emitting element 54 irradiates on the object plane 60 and corresponds to corner positions 61 of the images of the lens structures 30 on the object plane 60, thereby performing brightness compensation on the dark area of the edge of the image, thereby avoiding the situation that the brightness of the center is bright and the edge is dark, greatly improving the brightness uniformity of the image, and reducing the difficulty of subsequent image processing.
It should be noted that the frame 10 is preferably made of a metal material, such as AL, to increase the heat dissipation effect. Each photoelectric conversion chip 40 is in the direction in which the optical axis of the corresponding lens structure 30 extends, to ensure stability of image transmission. The light source structure 50 further includes an oxide coating, the outer wall surface of the light source frame 51 is provided with an oxide coating, the oxide coating is a white oxide coating, and by setting the white oxide coating, the light emitting effect of the light source structure 50 can be improved, and the brightness is improved.
As shown in fig. 3, the light source structure 50 is disposed on both sides of the frame 10 to provide a light source illumination of a certain area for the object plane 60.
Specifically, the light source structure 50 extends along the scanning direction, the number of the main light-emitting members 53 is plural, the plurality of main light-emitting members 53 are arranged at intervals along the scanning direction, the number of the compensation light-emitting members 54 is plural, the plurality of compensation light-emitting members 54 are arranged on both sides of the main light-emitting members 53, and the arrangement direction of the plurality of compensation light-emitting members 54 on the same side is the same as the arrangement direction of the plurality of main light-emitting members 53. The arrangement density of the compensation light emitting members 54 at one side is less than that of the main light emitting members 53, that is, the number of the compensation light emitting members 54 at one side is less than that of the main light emitting members 53, and since the compensation light emitting members 54 are arranged in the present application to perform brightness compensation on the corner position 61 of the scanned image of each lens structure 30, in practical application, the number of the compensation light emitting members 54 at one side does not need to be the same as that of the main light emitting members 53, and only the compensation light emitting members 54 need to be correspondingly arranged at the corner position 61 of the scanned image, so that the problem of uneven brightness of the scanned image can be solved, the number of the compensation light emitting members 54 can be saved, and the purpose of saving cost can be achieved.
As shown in fig. 4, a specific arrangement of the main light emitting members 53 and the compensation light emitting members 54 of the light source structure 50 is shown. The plurality of main light-emitting members 53 are arranged at intervals along the scanning direction, the lens structure 30 is provided with the compensation light-emitting members 54 at the four corner positions 61 of the scanned image on the object detection surface 60, that is, each lens structure 30 is provided with the compensation light-emitting members 54 at the four corner positions 61 of each scanned image on the object detection surface 60, and since the plurality of scanned images of the plurality of lens structures 30 on the object detection surface 60 are sequentially spliced, when the compensation light-emitting members 54 are arranged, a common group of compensation light-emitting members 54 is arranged at the splicing position of two adjacent scanned images in the plurality of scanned images. Taking fig. 4 as an example, for 6 sub-scanning images of 6 lens structures 30 on the object plane 60, the number of the compensation light-emitting members 54 on both sides of the main light-emitting member 53 is 7, that is, the compensation light-emitting members 54 at two corner positions 61 of the splicing position of two adjacent scanning images are shared. The brightness of the four corner positions 61 of each image is increased by providing compensating illuminators 54. Of course, in other alternative embodiments, the number of the compensation light emitting members 54 at the corner position 61 may be increased, and is not limited to 1, for example, the number of the compensation light emitting members 54 at each corner position 61 may be greater than or equal to 2.
As shown in fig. 3, the light source structure 50 includes a light source frame 51, a light source substrate 52, and the above-mentioned main light emitting element 53 and compensation light emitting element 54, the light source substrate 52 is disposed in the light source frame 51; the main light emitting members 53 and the compensation light emitting members 54 are mounted on the light source substrate 52, the light source substrate 52 provides a circuit for the main light emitting members 53 and the compensation light emitting members 54, the main light emitting members 53 and the compensation light emitting members 54 are arranged at intervals, the plurality of main light emitting members 53 are arranged at equal intervals linearly, and light emitting surfaces of the main light emitting members 53 and the compensation light emitting members 54 are located on the same plane. The main light emitting member 53 and the compensation light emitting member 54 of the light source structure 50 are both LEDs. The light compensation is performed by the compensation illuminating element 54, so as to balance the brightness difference of the whole image. Further, the number of LEDs at the same corner position 61 may be single or multiple.
It should be noted that the light source frame 51 is preferably made of a metal material to increase the heat dissipation effect. The light source substrate 52 is made of aluminum, so that the heat dissipation effect is increased. Meanwhile, the light source structure 50 is configured to be bilaterally symmetrical, so that the problem of different brightness of the two rows of main light emitting members 53 caused by different optical paths can be further solved. Further, the current of the main light emitting element 53 and the compensation light emitting element 54 is controlled by a pulse control method, so that the light emitting brightness of the main light emitting element 53 and the compensation light emitting element 54 can be better adjusted.
As shown in fig. 4, the compensating light emitting members 54 on different sides are disposed oppositely, and the compensating light emitting members 54 on the same side are disposed at equal intervals. The interval between two adjacent main light emitting members 53 among the plurality of main light emitting members 53 is greater than or equal to 0.6mm and less than or equal to 1mm; the spacing distance of the primary light-emitting members 53 is smaller than that of the compensation light-emitting members 54, the compensation light-emitting members 54 on both sides are arranged at equal linear intervals, the main light rays of the compensation light-emitting members 54 on both sides are concentrated at the corner positions 61 of the scanned images, and preferably, the spacing distance of the compensation light-emitting members 54 is the distance between every two scanned images, that is, in the present embodiment, the spacing between two adjacent compensation light-emitting members 54 in the plurality of compensation light-emitting members 54 on the same side is greater than or equal to 12.5mm and less than or equal to 13.5mm. Wherein the position on the left side directly opposite to the light emitting region of the first compensating light emitting element 54 is at the corner position 61 of the uppermost left corner of the scanned image.
Specifically, the light emitting surfaces of the main light emitting element 53 and the compensation light emitting element 54 are located on the same plane, and the distance between the main light emitting element 53 and the object detecting surface 60 is greater than or equal to 40mm and less than or equal to 50mm; the distance between the compensation light-emitting piece 54 and the object detection surface 60 is more than or equal to 40mm and less than or equal to 50mm. The angles of the compensation light-emitting member 54 and the main light-emitting member 53 should be selected to be light-emitting patterns of the LEDs having small angles. In the embodiment of the present disclosure, the distances from the main light emitting device 53 and the compensation light emitting device 54 to the object plane 60 are determined, so as to adjust the light emitting angles of the main light emitting device 53 and the compensation light emitting device 54 to be within 15 °, and the light efficiency utilization rate of the dark area irradiated to the object plane 60 is the highest.
Fig. 5 is a schematic structural diagram of an image sensor according to another alternative embodiment of the present application. In the present embodiment, the image sensor further includes a ball lens 55, and the ball lens 55 is disposed on the compensation light emitting member 54 and located at the light emitting side of the compensation light emitting member 54. That is, the ball lenses 55 are correspondingly provided on the compensation light emitting members 54 at both sides of the main light emitting member 53. The diameter of the spherical lens 55 is equal to or larger than the size of the compensating light emitting member 54. That is, the projection of the spherical lens 55 on the light source substrate 52 can completely cover the compensating light-emitting member 54, the material of the spherical lens 55 is preferably an optical material with good light transmittance, such as PMMA, etc., and by adding the spherical lens 55 to the front end of the compensating light-emitting member 54, the light emitted by the compensating light-emitting member 54 can be further converged, so as to obtain light with a small angle and increase the brightness of the incident scanned image.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An image sensor, comprising:
a frame body (10);
a circuit board (20), the circuit board (20) being disposed within the frame (10);
the lens structures (30) are arranged in the frame body (10) and are arranged at intervals with the circuit board (20), the number of the lens structures (30) is multiple, and the lens structures (30) are sequentially arranged along the scanning direction;
the photoelectric conversion chip (40) is arranged on the circuit board (20) and is positioned on the surface of one side, facing the lens structure (30), of the circuit board (20), the photoelectric conversion chips (40) are multiple, and the multiple photoelectric conversion chips (40) and the multiple lens structures (30) are arranged in a one-to-one correspondence manner;
light source structure (50), image sensor's detection object plane (60) are located the outside of framework (10) and are located lens structure (30) are kept away from one side of circuit board (20), light source structure (50) are located framework (10) with detect between object plane (60), light source structure (50) are including main illuminating part (53) and compensation illuminating part (54), at least one side of main illuminating part (53) is provided with compensation illuminating part (54), one side the array density of compensation illuminating part (54) is less than the array density of main illuminating part (53), light source structure (50) slope sets up, so that the light slope of light source structure (50) transmission is in detect on object plane (60).
2. The image sensor according to claim 1, wherein the light source structure (50) extends along the scanning direction, the number of the main light emitting members (53) is plural, the number of the main light emitting members (53) is spaced along the scanning direction, the number of the compensation light emitting members (54) is plural, the number of the compensation light emitting members (54) is provided on both sides of the main light emitting members (53), and the arrangement direction of the compensation light emitting members (54) on the same side is the same as the arrangement direction of the number of the main light emitting members (53).
3. The image sensor of claim 1,
the lens structure (30) is provided with the compensation light-emitting piece (54) correspondingly at four corner positions (61) of a scanned image on the detection object surface (60); and/or
And a plurality of scanning images of the lens structures (30) on the detection object surface (60) are spliced in sequence, and a common group of compensation light-emitting pieces (54) are correspondingly arranged at the splicing positions of two adjacent scanning images in the plurality of scanning images.
4. An image sensor as claimed in claim 1, characterized in that the primary light emitter (53) and the compensation light emitter (54) are both LEDs.
5. The image sensor according to claim 1, wherein the light source structure (50) comprises:
a light source frame (51);
a light source substrate (52), the light source substrate (52) being disposed within the light source frame (51);
the main light-emitting piece (53) and the compensation light-emitting piece (54) are carried on the light source substrate (52), the main light-emitting piece (53) and the compensation light-emitting piece (54) are arranged at intervals, and the light-emitting surfaces of the main light-emitting piece (53) and the compensation light-emitting piece (54) are located on the same plane.
6. The image sensor according to claim 2, wherein the compensating light-emitting elements (54) on different sides are arranged opposite to each other, and the compensating light-emitting elements (54) on the same side are arranged at equal intervals.
7. The image sensor of claim 2,
the interval between two adjacent main light-emitting pieces (53) in the plurality of main light-emitting pieces (53) is more than or equal to 0.6mm and less than or equal to 1mm; and/or
The interval between two adjacent compensating light-emitting pieces (54) in the compensating light-emitting pieces (54) on the same side is greater than or equal to 12.5mm and less than or equal to 13.5mm.
8. The image sensor according to claim 1, further comprising a ball lens (55), the ball lens (55) being disposed on the compensation light emitting member (54) and located at a light emitting side of the compensation light emitting member (54).
9. An image sensor as claimed in claim 8, characterized in that the diameter of the spherical lens (55) is greater than or equal to the size of the compensating light emitter (54).
10. An image sensor as claimed in claim 1, characterized in that the light exit surfaces of the main emitter (53) and the compensation emitter (54) lie in the same plane,
the distance between the main luminous piece (53) and the object detection surface (60) is more than or equal to 40mm and less than or equal to 50mm;
the distance between the compensation light-emitting piece (54) and the detection object surface (60) is more than or equal to 40mm and less than or equal to 50mm.
11. The image sensor of claim 5, wherein the light source structure (50) further comprises an oxide coating, and the oxide coating is disposed on an outer wall surface of the light source frame (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277412.2U CN217957185U (en) | 2022-08-29 | 2022-08-29 | Image sensor with a plurality of pixels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277412.2U CN217957185U (en) | 2022-08-29 | 2022-08-29 | Image sensor with a plurality of pixels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217957185U true CN217957185U (en) | 2022-12-02 |
Family
ID=84212284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222277412.2U Active CN217957185U (en) | 2022-08-29 | 2022-08-29 | Image sensor with a plurality of pixels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217957185U (en) |
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2022
- 2022-08-29 CN CN202222277412.2U patent/CN217957185U/en active Active
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