Scanning head and electronic equipment
By using a homogenizer made of photoluminescent materials in the fill light of the scanning head, absorbing and emitting light as a whole, the spot problem caused by the fill light lamp in the prior art is solved, and better scanning quality and image recognition accuracy are achieved.
Patent Information
- Application Number
- CN202421362996.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The fill lights in existing scanning equipment can easily cause excessive local light intensity when filling up light, resulting in light spots on the captured images, affecting the scanning effect.
A scanning head is designed, and its fill light includes a lamp holder, a light source and a light homogenizer. The light emitted by the light source is absorbed by the light source and emits light as a whole, forming a larger area of uniform light to avoid the formation of light spots.
Through uniformly dispersed light, the fill light effect is improved, the appearance of light spots is reduced, and the scanning quality of the camera module and the accuracy of subsequent image recognition are improved.
Smart Images
Figure CN222852315U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic equipment, in particular to a scanning head and electronic equipment. Background Art
[0002] The existing scanning pen is provided with a camera for scanning, and during the scanning process, a fill light is used to illuminate the content to be scanned so as to provide fill light for the camera. When the existing fill light is used for fill light, it is easy to cause excessive local light intensity, thereby forming a light spot on the image captured by the camera, affecting the scanning effect. Utility Model Content
[0003] The utility model provides a scanning head and an electronic device, which are used to solve the defect in the prior art that the local illumination intensity of the fill light is too large when filling light, which easily forms a light spot on the captured image and affects the scanning effect.
[0004] In the first aspect, the utility model provides a scanning head, comprising: a shell, a fill light and a camera module, the shell having a scanning window, the camera module being fixed in the shell, the lens of the camera module facing the scanning window to scan the content to be scanned; the fill light is fixed in the shell to provide lighting for the camera module; wherein the fill light comprises a lamp holder, a light source and a light uniforming member, the lamp holder is fixedly connected to the light uniforming member to form an installation cavity, the light source is fixed in the installation cavity, and the light uniforming member is a structural member made of photoluminescent material.
[0005] According to the scanning head of the utility model, the lamp holder has a groove, the light source is fixed in the groove, and the light homogenizing member is fixed at the notch of the groove to seal the groove.
[0006] According to the scanning head of the utility model, the groove is spherical.
[0007] According to the scanning head of the utility model, the light source is located at the bottom of the groove, and the line connecting the light source and the center of the groove is perpendicular to the light homogenizing member.
[0008] According to the scanning head of the utility model, the light averaging member is an optical fiber board.
[0009] According to the scanning head of the utility model, the light-homogenizing member is bonded and fixed to the lamp holder.
[0010] According to the scanning head of the utility model, there are two fill-in lights, and the two fill-in lights are arranged on two opposite sides of the camera module.
[0011] According to the scanning head of the utility model, the housing has a light-transmitting hole, and the lamp holder is inserted into the light-transmitting hole so that the outer surface of the light-distributing member is flush with the opening of the light-transmitting hole;
[0012] And / or, the shell is provided with a camera hole, the lens of the camera module is at least partially inserted into the camera hole, and a transparent plate is installed at the opening of the camera hole.
[0013] According to the scanning head of the utility model, it also includes a connecting plate, and the fill light and the camera module are respectively connected to the connecting plate so as to be electrically connected to the control board.
[0014] In a second aspect, the utility model further provides an electronic device, comprising a housing and the scanning head as described above, wherein the scanning head is installed in the housing.
[0015] In the scanning head and electronic equipment of the utility model, the lamp holder of the fill light and the light uniformizing member together form an installation cavity, the light source is arranged in the installation cavity, and the light uniformizing member is located on the side of the installation cavity facing the scanning window. After the light emitted by the light source is absorbed by the light uniformizing member made of photoluminescent material, the light uniformizing member can emit light as a whole, the light emitting area is larger, the light is more evenly dispersed, it is not easy to form a light spot on the scanned image, the fill light effect is better, it is beneficial to improve the scanning quality of the camera module and the accuracy of subsequent image recognition, and effectively solves the defect in the prior art that the local light intensity of the fill light is too large when filling light, which is easy to form a light spot on the captured image and affect the scanning effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 It is a structural schematic diagram of the scanning head provided by the utility model;
[0018] Figure 2 It is a cross-sectional view of the fill light provided by the utility model;
[0019] Reference numerals:
[0020] 1. Scanning head;
[0021] 11. housing; 111. scanning window;
[0022] 12. Fill light; 121. Lamp holder; 122. Light source; 123. Light equalizing member; 124. Mounting cavity;
[0023] 13. Camera module; 14. Connecting plate; 15. Observation plate. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in 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 creative work are within the scope of protection of the utility model.
[0025] The term "first" or "second" in the specification and claims of the utility model may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.
[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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.
[0028] Combine the following Figure 1-Figure 2 The scanning head of the utility model is described.
[0029] like Figure 1 and Figure 2As shown, a scanning head 1 of the utility model includes: a shell 11, a fill light 12 and a camera module 13. The shell 11 has a scanning window 111, the camera module 13 is fixed in the shell 11, and the lens of the camera module 13 faces the scanning window 111 to scan the content to be scanned. The fill light 12 is fixed in the shell 11 to provide lighting for the camera module 13. Among them, the fill light 12 includes a lamp holder 121, a light source 122 and a light evenly distributed component 123, the lamp holder 121 and the light evenly distributed component 123 are fixedly connected to form an installation cavity 124, the light source 122 is fixed in the installation cavity 124, and the light evenly distributed component 123 is a structural component made of photoluminescent material.
[0030] In the present embodiment, it is understandable that a housing cavity is formed in the housing 11 to accommodate and protect the camera module 13 and the fill light 12. By providing a scanning window 111 connecting the housing cavity and the outside on the housing 11, the camera module 13 can scan the content to be scanned through the scanning window 111, and the fill light 12 can also fill light to the scanning position through the scanning window 111. At the same time, the fill light 12 includes a lamp holder 121 to fix the light source 122 and the light equalizer 123, wherein the lamp holder 121 and the light equalizer 123 are surrounded to form an installation cavity 124, and the light source 122 is arranged in the installation cavity 124, and the light source 122 can emit light to the light equalizer 123. The light equalizer 123 is made of photoluminescent material, and after absorbing the light emitted by the light source 122, the light equalizer 123 can be excited and emit light as a whole. The side of the light evenly distributed element 123 away from the installation cavity 124 is oriented toward the scanning window 111, so that the light emitted by the light evenly distributed element 123 can pass through the scanning window 111 to supplement the scanning position of the camera module 13. The light-emitting area of the light evenly distributed element 123 is larger, and the light is more evenly dispersed, and it is not easy to form a light spot on the scanned image, so that the image quality obtained by the scanning of the camera module 13 is better, which is conducive to improving the accuracy of subsequent image recognition.
[0031] The scanning head 1 of the utility model is provided with a camera module 13 and a fill light 12 in a housing 11. The camera module 13 can scan the content to be scanned through the scanning window 111 on the housing 11, and the fill light 12 can fill light for the camera module 13 to improve the scanning quality. At the same time, the lamp holder 121 and the light-distributing member 123 of the fill light 12 are surrounded to form a mounting cavity 124. The light source 122 is arranged in the mounting cavity 124, and the light-distributing member 123 is located on the side of the mounting cavity 124 facing the scanning window 111. After the light emitted by the light source 122 is absorbed by the light-distributing member 123 made of photoluminescent material, the light-distributing member 123 can emit light as a whole, with a larger luminous area, more evenly dispersed light, and less likely to form a light spot on the scanned image. The fill light effect is better, which is conducive to improving the scanning quality of the camera module 13 and the accuracy of subsequent image recognition, and effectively solves the defect in the prior art that the local light intensity of the fill light is too large when filling light, and it is easy to form a light spot on the captured image, which affects the scanning effect.
[0032] Specifically, in some embodiments, Figure 2 As shown, the lamp holder 121 has a groove, the light source 122 is fixed in the groove, and the light homogenizing member 123 is fixed at the notch of the groove to seal the groove.
[0033] In this embodiment, a groove is provided in the lamp holder 121, and the light uniformizer 123 is sealed in the groove, so that the light uniformizer 123 and the lamp holder 121 are surrounded by a mounting cavity 124, and the light source 122 is fixed in the groove. Part of the light emitted by the light source 122 toward the groove wall will be reflected by the groove wall and emitted toward the light uniformizer 123, so as to improve the utilization rate of the light energy emitted by the light source 122, and improve the light intensity while ensuring that the supplementary light emitted by the light uniformizer 123 is evenly dispersed. The structure is simple, convenient and practical.
[0034] It is understandable that, in a specific embodiment, the light source 122 is a point light source, and the light homogenizing member 123 is a light homogenizing plate enclosed in the notch of the groove. After absorbing the light of the light source 122, the light homogenizing member 123 is excited and emits light as a whole, thereby converting the point light source into a surface light source, and the emitted light is more evenly dispersed, avoiding excessive local light intensity during fill light, forming a light spot on the scanned image, and affecting the scanned image quality and subsequent recognition effect.
[0035] Optionally, in some embodiments, Figure 2 As shown, the groove is spherical.
[0036] In this embodiment, after receiving the light emitted by the light source 122 in the groove, the spherical groove can reflect more light toward the light homogenizer 123, so that the light emitted by the light homogenizer 123 is stronger and has a better effect under the same power of the light source 122.
[0037] Optionally, the groove wall of the groove can be a reflective surface to enhance the reflection effect. Under the same power light source 122, the reflectivity of the reflective surface is higher, and the light reflected to the light homogenizer 123 is stronger, so that the light emitted by the light homogenizer 123 is stronger. Further, the groove wall of the groove can be a mirror surface, and the groove wall of the entire groove forms a concave mirror. The light source 122 can be set at the focal position of the concave mirror. The concave mirror can not only reflect the light emitted by the light source 122 to the light homogenizer 123 at the notch, but also reflect the light emitted by the light source 122 to the mirror surface as light perpendicular to the plane where the light homogenizer 123 is located.
[0038] Optionally, there can be multiple light sources 122, and the multiple light sources 122 are evenly arranged around the spherical surface, wherein the vertical distance between each light source 122 and the plane where the light homogenizing element 123 is located is the same, so that the light emitted by the light source 122 can be evenly and symmetrically emitted to the light homogenizing element 123, thereby making the light emitted by the light homogenizing element 123 more uniform.
[0039] Optionally, in some embodiments, Figure 2 As shown, the light source 122 is located at the bottom of the groove, and the line connecting the light source 122 and the center of the groove is perpendicular to the light homogenizing member 123 .
[0040] In this embodiment, by arranging the light source 122 at the bottom of the groove, and the line connecting the light source 122 and the center of the groove is perpendicular to the light homogenizer 123, the light source 122 can be directly opposite the center of the light homogenizer 123, so that the light emitted by the light source 122 can be evenly and symmetrically emitted to the light homogenizer 123, thereby making the light emitted by the light homogenizer 123 more uniform.
[0041] Optionally, the light homogenizing member 123 may be one or more of an optical fiber plate, a manganese activated fluoride phosphor plate, a europium activated sulfide-based phosphor plate, and a quantum dot material plate.
[0042] In some specific embodiments, the light homogenizing member 123 is an optical fiber board. The optical fiber board can transmit the light received toward one side of the installation cavity 124 to the other side through total reflection and emit it outward for fill light. The light loss during the transmission process in the optical fiber board is small, so that the light intensity of the fill light to the outside can be guaranteed, and then the fill light effect can be guaranteed, so as to improve the scanning effect of the camera module 13 and the subsequent image recognition accuracy.
[0043] Optionally, the light homogenizing member 123 may be detachably connected to the lamp holder 121 , so that the light homogenizing member 123 and the light source 122 can be disassembled, assembled, and replaced.
[0044] Optionally, in some embodiments, the light homogenizing member 123 is bonded and fixed to the lamp holder 121 .
[0045] In this embodiment, the light evenly distributed member 123 is bonded to the lamp holder 121, so that the connection between the light evenly distributed member 123 and the lamp holder 121 becomes more secure. At the same time, there is no need to set a complicated connection structure between the light evenly distributed member 123 and the lamp holder 121, so that the structure of the light evenly distributed member 123 and the lamp holder 121 becomes more compact, which is beneficial to reducing the size of the entire fill light 12.
[0046] Specifically, Figure 2 As shown, the light uniformizing member 123 is a light uniformizing plate, and the lamp holder 121 has a groove. The size of the light uniformizing plate is slightly larger than the notch of the groove. When the light uniformizing member 123 is installed on the lamp holder 121, the middle part of the light uniformizing member 123 corresponds to the notch closed in the groove, and the edge part of the light uniformizing member 123 can be pre-glued so that the edge part and the outer wall of the lamp holder 121 at the edge of the notch are bonded to each other. The structure is simple and the operation is convenient.
[0047] Optionally, in some embodiments, there are two fill lights 12 , and the two fill lights 12 are disposed on opposite sides of the camera module 13 .
[0048] In this embodiment, a fill light 12 is provided on each of the two opposite sides of the camera module 13, so that the scanning position at which the lens of the camera module 13 is aimed can be illuminated more evenly, thereby preventing the scanning position from being illuminated too strongly on one side and forming a light spot on the scanned image, thereby improving the quality of the scanned image and the accuracy of subsequent image recognition.
[0049] Furthermore, the distances between the two fill lights 12 and the camera module 13 are equal.
[0050] Optionally, there may be multiple fill lights 12 , and the multiple fill lights 12 are arranged around the camera module 13 .
[0051] In some embodiments not shown, the housing 11 has a light-transmitting hole, and the lamp holder 121 is inserted into the light-transmitting hole so that the outer surface of the light-homogenizing member 123 is flush with the opening of the light-transmitting hole.
[0052] In this embodiment, a light-transmitting hole is provided on the housing 11, and the light-transmitting hole is used to accommodate and fix the lamp holder 121. The inner wall of the light-transmitting hole fits with the side wall of the lamp holder 121, so that the lamp holder 121 is more stable and not easy to shake, thereby making the fill light effect more stable. At the same time, the outer surface of the light-distributing member 123 is flush with the opening of the light-transmitting hole to hide the gap structure of the light-transmitting hole, so that the outer wall of the housing 11 is smoother and more beautiful.
[0053] Optionally, in some embodiments, the housing 11 is provided with a camera hole, a lens of the camera module 13 is at least partially inserted into the camera hole, and a transparent plate is installed at the opening of the camera hole.
[0054] In this embodiment, by setting a camera hole on the housing 11, the hole wall of the camera hole fits with the side wall of the lens, making the lens more stable and less likely to shake, thereby improving the quality of the scanned image. At the same time, by installing a transparent plate at the hole opening of the camera hole, the lens of the camera module 13 can shoot and scan through the transparent plate, and the transparent plate can close the hole opening of the camera hole to play a role in dust protection; in addition, the transparent plate can also make the pore structure of the camera hole less obvious, making the outer wall of the housing 11 smoother and more beautiful.
[0055] In some embodiments, Figure 2 As shown, the scanning head 1 further includes a connecting plate 14, and the fill light 12 and the camera module 13 are respectively connected to a connecting plate 14 so as to be electrically connected to the control board.
[0056] In this embodiment, the fill light 12 and the camera module 13 are respectively connected to the corresponding connecting plates 14, on which the corresponding power supply and control circuits of the fill light 12 or the camera module 13 are mounted, and the connecting plates 14 are used to communicate with the control board, so that when the scanning head 1 is installed on an electronic device, the connecting plates 14 corresponding to the fill light 12 and the camera module 13 are connected to the control circuit of the electronic device, so that the electronic device can control the fill light 12 and the camera module 13.
[0057] Specifically, the connecting board 14 may be a PCB board.
[0058] Optionally, in some embodiments, Figure 1 As shown, the housing 11 of the scanning head 1 is also provided with an observation board 15, which is located on the front of the scanning head 1, so that the user can view the content to be scanned through the observation board 15. An indicator mark is provided on the board surface of the observation board 15. Specifically, the indicator mark can be an indicator line or a light bar, so that the user can align the scanning head 1 with the content to be scanned. For example, the observation board 15 can be a transparent board, and the indicator mark is formed on the transparent board by pasting an indicator bar or printing an indicator line.
[0059] On the other hand, the utility model further provides an electronic device, comprising a housing and a scanning head 1 provided by any one of the above embodiments, wherein the scanning head is installed in the housing.
[0060] It is easy to understand that the electronic device of this embodiment can be any device with image scanning function, such as a scanning pen, a dictionary pen, a barcode scanning gun, etc. The electronic device has a housing (such as the pen barrel of a scanning pen), and a scanning head 1 is fixedly mounted on the housing for scanning. By using the scanning head 1 of the above embodiment, the electronic device of the utility model also has the advantages of the above scanning head 1, which will not be repeated here. Alternatively, the scanning head can be detachably mounted on the housing.
[0061] It is easy to understand that the electronic device is also provided with a recognition device, which is connected to the camera module 13 for receiving the image scanned by the camera module 13 and recognizing the image to realize the function of the electronic device. For example, the recognition device of the dictionary pen can use optical symbol recognition and embedded translation system to recognize words in the image scanned by the scanning head 1, and query in the word library, and can display the meaning and pronunciation of the corresponding word.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A scanning head, characterized in that: include: A housing, a fill light and a camera module, wherein the housing has a scanning window, the camera module is fixed in the housing, and the lens of the camera module faces the scanning window to scan the content to be scanned; The fill light is fixed in the shell to provide lighting for the camera module; wherein, the fill light includes a lamp holder, a light source and a light-distributing member, the lamp holder and the light-distributing member are fixedly connected to form an installation cavity, the light source is fixed in the installation cavity, and the light-distributing member is a structural member made of photoluminescent material.
2. The scanning head according to claim 1, characterized in that: The lamp holder has a groove, the light source is fixed in the groove, and the light homogenizing member is fixed at the notch of the groove to seal the groove.
3. The scanning head according to claim 2, characterized in that: The groove is spherical.
4. The scanning head according to claim 3, characterized in that: The light source is located at the bottom of the groove, and a line connecting the light source and the center of the groove is perpendicular to the light homogenizing member.
5. The scanning head according to claim 1 or 2, characterized in that: The light-homogenizing member is an optical fiber board.
6. The scanning head according to claim 1, characterized in that: The light-distributing member is bonded and fixed to the lamp holder.
7. The scanning head according to claim 1, characterized in that: There are two fill lights, which are arranged on two opposite sides of the camera module.
8. The scanning head according to any one of claims 1 to 3, characterized in that: The housing has a light-transmitting hole, and the lamp holder is inserted into the light-transmitting hole so that the outer surface of the light-distributing member is flush with the opening of the light-transmitting hole; And / or, the shell is provided with a camera hole, the lens of the camera module is at least partially inserted into the camera hole, and a transparent plate is installed at the opening of the camera hole.
9. The scanning head according to claim 1, characterized in that: It also includes a connecting plate, and the fill light and the camera module are respectively connected to the connecting plate so as to be electrically connected to the control board.
10. An electronic device, characterized in that: The invention comprises a housing and a scanning head as claimed in any one of claims 1 to 9, wherein the scanning head is installed in the housing.