CN220327540U - Image acquisition structure and color comparator - Google Patents
Image acquisition structure and color comparator Download PDFInfo
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- CN220327540U CN220327540U CN202321331750.8U CN202321331750U CN220327540U CN 220327540 U CN220327540 U CN 220327540U CN 202321331750 U CN202321331750 U CN 202321331750U CN 220327540 U CN220327540 U CN 220327540U
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Abstract
The utility model provides an image acquisition structure and a color comparator, wherein the image acquisition structure comprises: an image acquisition component; the positioning base is provided with a preprocessing module, and the preprocessing module is connected with the image acquisition assembly and is used for preprocessing an image signal transmitted from the image sensor; the telescopic assembly is arranged on the positioning base at one end, the other end of the telescopic assembly is connected with the image acquisition assembly, the telescopic assembly comprises a voice coil motor, and the voice coil motor drives the telescopic assembly to extend or retract so as to drive the image acquisition assembly to move to complete focusing; according to the utility model, through the voice coil motor and the matched structural design, the rapid and uniform focusing mechanical movement is realized, the imaging quality is improved, more accurate colorimetric information is further obtained, and the problem that the imaging is influenced due to uneven deflection of two sides caused by an electric focusing scheme of a single-side power source in the handheld photographing equipment in the medical imaging field in the existing scheme is solved.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an image acquisition structure and a color comparator.
Background
With the increasing importance of people on oral health, porcelain prostheses have become the first treatment mode for common diseases such as tooth defects, dentition defects or deletions of patients. The porcelain restoration is characterized by restoration of the morphological function of the tooth body, strong fracture resistance, vivid color and appearance, stable color and luster and strong wear resistance. Among them, color coordination is an important factor affecting the beauty of the teeth and the restoration.
In clinic, the traditional color selection method mainly adopts artificial color selection, the artificial color selection is usually carried out by dentists through a contrast color plate, and the subjective impression of human eyes, ambient light environment and other environmental factors have great influence on the color selection result; in order to improve color selection accuracy, the color selection method in the prior art mostly adopts a color comparator to select colors, the color comparator mainly adopts a computer color selection technical principle, color data of a colorimetric plate are made into a database, and the color data of dental images of a patient are searched according to a color difference searching principle, but in the handheld photographing equipment in the medical imaging field of the existing scheme, an electric focusing function is currently realized by adopting a mode of driving an image acquisition module by a stepping motor, but due to the structural limitation of the stepping motor, the stepping motor can only be installed on one side of a mechanical structure for driving the image acquisition module, and the other side only plays a role of a guide rail and has no power source; therefore, when the stepping motor drives the image acquisition module to move forwards and backwards, the device deflects unevenly left and right, and the imaging effect is affected; meanwhile, after the image acquisition module moves forwards and backwards for a long time, the gap between the side without the power source and the image acquisition module can be gradually increased, and the imaging effect is gradually deteriorated.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model is to provide an image acquisition structure and a color comparator, which solve the problem that in a handheld photographing device in the medical imaging field of the existing scheme, two sides are unevenly deflected due to an electric focusing scheme using a single-side power source, so that imaging is affected.
In order to solve the above technical problems, the present utility model provides an image acquisition structure, including:
an image acquisition component;
the positioning base is provided with a preprocessing module, and the preprocessing module is connected with the image acquisition assembly and is used for preprocessing image signals transmitted from the image acquisition assembly;
the telescopic assembly, the one end of telescopic assembly set up in on the positioning base, the other end with the image acquisition subassembly links to each other, telescopic assembly includes voice coil motor, through voice coil motor drives telescopic assembly extends or contracts, and then the drive the image acquisition subassembly advances or retreats in order to accomplish and focus.
As a more preferable scheme, the telescopic assembly further comprises a connecting mechanism for connecting the voice coil motor and the image acquisition assembly.
As a more preferable scheme, the connecting mechanism is fixed with the voice coil motor through a screw and is connected with the image acquisition assembly through an adhesive mode.
As a more preferable scheme, the connecting mechanism is made of polyethylene, and the connecting mechanism made of polyethylene has very good insulating property while meeting the structural strength, so that the image acquisition assembly can be effectively prevented from being damaged by high current or static electricity.
As a more preferable scheme, the preprocessing module comprises a signal conversion chip for converting the image information into the LVDS differential signals, and the characteristics of the LVDS differential signals, such as high speed, low noise, long distance and high accuracy, are utilized to prepare for further transmission of the subsequent signals.
As a more preferable scheme, the preprocessing module is connected with the image acquisition assembly through a soft flat cable, and interference when the image acquisition assembly is driven to stretch by the stretching assembly is reduced by using a connecting mode of the soft flat cable.
As a more preferable mode, the image acquisition assembly includes a circuit substrate and an image sensor disposed on the circuit substrate.
As a more preferable scheme, the image sensor adopts a CMOS sensor, and the CMOS sensor has the characteristics of high resolution, high bit depth and small pixels.
The present utility model also provides a color comparator comprising:
the lighting structure comprises a light inlet and a light outlet;
the image acquisition structure is arranged at the light outlet and is used for receiving incident light emitted from the lighting structure;
and the processing unit is connected with the preprocessing module and is used for receiving signals sent by the preprocessing module.
As a more preferable scheme, the color comparator further comprises a lens module, wherein the lens module is arranged in the lighting structure, and incident light enters the lighting structure through the light inlet and passes through the lens module and then is emitted from the light outlet.
As described above, the image acquisition structure and the color comparator of the present utility model have the following beneficial effects: when the image acquisition structure is used, the voice coil motor directly drives the image acquisition assembly to focus, so that the whole image acquisition assembly moves forwards and backwards more uniformly during focusing, more accurate image distance control is realized, and the imaging quality is improved; meanwhile, the image acquisition structure of the utility model sets the preprocessing module on the positioning base, so that the load of the image acquisition assembly is reduced, and the voice coil motor can more easily and uniformly drive the image acquisition assembly, thereby improving the imaging quality; when the color comparator adopting the image acquisition structure is used, incident light is emitted from the light outlet and is injected into the image acquisition assembly, the image acquisition assembly processes light information into an electric signal and sends the electric signal to the preprocessing module, the preprocessing module further processes the electric signal and transmits the electric signal to the processing unit, the processing unit screens out the color closest to the primary color of the image according to the image information and a related color selection algorithm, and meanwhile, due to the characteristics of simple structure, small volume, high speed, high acceleration response speed and the like of the voice coil, the corresponding color comparator can further reduce the equipment size and weight, improve portability and usability, and simultaneously improve focusing speed and imaging quality, and a user can screen out more accurate colors through the color comparator; the image acquisition structure and the colorimeter realize quicker and more uniform focusing mechanical movement through the voice coil motor and the matched structural design, improve imaging quality, further obtain more accurate colorimetric information, and solve the problem that in the hand-held photographing equipment in the medical imaging field of the existing scheme, the deflection of two sides is uneven and imaging is influenced due to the adoption of an electric focusing scheme of a single-side power source.
Drawings
Fig. 1 shows a schematic view of an image acquisition structure of the present utility model.
Description of element reference numerals
1. Image acquisition assembly
11. Circuit substrate
12. Image sensor
2. Positioning base
3. Telescopic assembly
4. Soft flat cable
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, but rather by the claims, unless otherwise indicated, and unless otherwise indicated, all changes in structure, proportions, or otherwise, used by those skilled in the art, are included in the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
As shown in fig. 1, the present utility model provides an image acquisition structure including:
an image acquisition assembly 1;
the positioning base 2 is provided with a preprocessing module, and the preprocessing module is connected with the image acquisition assembly 1 and is used for preprocessing image signals transmitted from the image acquisition assembly 1;
the telescopic assembly 3, the one end of telescopic assembly 3 set up in on the positioning base 2, the other end with image acquisition assembly 1 links to each other, telescopic assembly 3 includes voice coil motor, through voice coil motor drives telescopic assembly 3 extends or contracts, and then the drive image acquisition assembly 1 advances or retreats in order to accomplish focusing.
When the image acquisition structure is used, the voice coil motor directly drives the image acquisition assembly 1 to focus, so that the whole image acquisition assembly 1 moves forwards and backwards more uniformly during focusing, more accurate image distance control is realized, and the imaging quality is improved; meanwhile, the image acquisition structure of the utility model sets the preprocessing module on the positioning base 2, so that the load of the image acquisition assembly 1 is reduced, and therefore, the voice coil motor can more easily and uniformly drive the image acquisition assembly 1, thereby improving the imaging quality.
In this embodiment, the telescopic assembly 3 further includes a connection mechanism for connecting the voice coil motor and the image capturing assembly 1.
In this embodiment, the connection mechanism is fixed to the voice coil motor by a screw, and is connected to the image acquisition assembly 1 by an adhesive manner.
In this embodiment, the connection mechanism is made of polyethylene, and the connection mechanism made of polyethylene has very good insulation performance while meeting the structural strength, so that the image acquisition assembly 1 can be effectively prevented from being damaged by high current or static electricity.
In this embodiment, the preprocessing module includes a signal conversion chip, which is configured to convert image information into LVDS differential signals, and prepare for further transmission of subsequent signals by using characteristics of the LVDS differential signals that can be transmitted at a high rate, with low noise, in a long distance, and with high accuracy.
In this embodiment, as shown in fig. 1, the preprocessing module is connected with the image acquisition component 1 through a flexible flat cable 4, and interference when the telescopic component 3 drives the image acquisition component 1 to stretch is reduced by using a connection mode of the flexible flat cable 4; further, in this embodiment, the flexible flat cable 4 includes two groups, and symmetry respectively set up in image acquisition subassembly 1 both sides, so further guarantee through voice coil motor drive when image acquisition subassembly 1, the atress on image acquisition subassembly 1 both sides is even, guarantees the effect of focusing, promotes imaging quality.
In this embodiment, as shown in fig. 1, the image capturing assembly 1 includes a circuit substrate 11 and an image sensor 12 disposed on the circuit substrate 11.
In this embodiment, the image sensor 12 is a CMOS sensor, which has the characteristics of high resolution, high bit depth, and small pixels.
The present utility model also provides a color comparator comprising:
the lighting structure comprises a light inlet and a light outlet;
the image acquisition structure is arranged at the light outlet and is used for receiving incident light emitted from the lighting structure;
and the processing unit is connected with the preprocessing module and is used for receiving signals sent by the preprocessing module.
When the color comparator adopting the image acquisition structure is used, incident light is emitted from the light outlet and is injected into the image acquisition assembly, the image acquisition assembly 1 processes light information into an electric signal and sends the electric signal to the preprocessing module, the preprocessing module further processes the electric signal and transmits the electric signal to the processing unit, the processing unit screens out the color closest to the primary color of the image according to the image information and a related color selection algorithm, and meanwhile, due to the characteristics of simple structure, small volume, high speed, high acceleration response speed and the like of the voice coil, the corresponding color comparator can further reduce the equipment size and weight, improve portability and usability, and simultaneously improve focusing speed and imaging quality, and a user can screen out more accurate colors through the color comparator.
In this embodiment, the color comparator further includes a lens module, the lens module is disposed in the lighting structure, and incident light enters the lighting structure through the light inlet and passes through the lens module, and then exits from the light outlet.
Still further, when the color comparator of the present embodiment is used to photograph teeth and extract color comparison information, the image sensor 12 of the color comparator of the present embodiment employs a CMOS sensor to satisfy the requirements of small tooth imaging range, high accuracy, and the like.
In summary, the image acquisition structure and the colorimeter realize quicker and more uniform focusing mechanical movement through the voice coil motor and the matched structural design, improve imaging quality, further obtain more accurate colorimetric information, and solve the problem that in the handheld photographing equipment in the medical imaging field of the existing scheme, the deflection of two sides is uneven due to the adoption of an electric focusing scheme of a single-side power source, so that imaging is influenced. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. An image acquisition structure, comprising:
an image acquisition assembly (1);
the positioning base (2) is provided with a preprocessing module, and the preprocessing module is connected with the image acquisition assembly (1) and is used for preprocessing image signals transmitted from the image acquisition assembly (1);
the telescopic assembly (3), one end of telescopic assembly (3) set up in on positioning base (2), the other end with image acquisition subassembly (1) link to each other, telescopic assembly (3) include voice coil motor, through voice coil motor drives telescopic assembly (3) extend or retract, and then the drive image acquisition subassembly (1) advance or retreat in order to accomplish and focus.
2. The image acquisition structure of claim 1, wherein: the telescopic component (3) further comprises a connecting mechanism for connecting the voice coil motor and the image acquisition component (1).
3. The image acquisition structure of claim 2, wherein: the connecting mechanism is fixed with the voice coil motor through a screw and is connected with the image acquisition assembly (1) through an adhesive mode.
4. The image acquisition structure of claim 2, wherein: the connecting mechanism is made of polyethylene.
5. The image acquisition structure of claim 1, wherein: the preprocessing module comprises a signal conversion chip for converting image information into LVDS differential signals.
6. The image acquisition structure of claim 1, wherein: the preprocessing module is connected with the image acquisition assembly (1) through a soft flat cable (4).
7. The image acquisition structure of claim 1, wherein: the image acquisition assembly (1) comprises a circuit substrate (11) and an image sensor (12) arranged on the circuit substrate (11).
8. The image acquisition structure of claim 7, wherein: the image sensor (12) is a CMOS sensor.
9. A color comparator, comprising:
the lighting structure comprises a light inlet and a light outlet;
the image capturing structure of any one of claims 1 to 8, disposed at the light outlet for receiving incident light rays emitted from the light collecting structure;
and the processing unit is connected with the preprocessing module and is used for receiving signals sent by the preprocessing module.
10. The color comparator according to claim 9, wherein: the color comparator also comprises a lens module, wherein the lens module is arranged in the lighting structure, and incident light enters the lighting structure through the light inlet and passes through the lens module, and then is emitted from the light outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321331750.8U CN220327540U (en) | 2023-05-29 | 2023-05-29 | Image acquisition structure and color comparator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321331750.8U CN220327540U (en) | 2023-05-29 | 2023-05-29 | Image acquisition structure and color comparator |
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| Publication Number | Publication Date |
|---|---|
| CN220327540U true CN220327540U (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321331750.8U Active CN220327540U (en) | 2023-05-29 | 2023-05-29 | Image acquisition structure and color comparator |
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| CN (1) | CN220327540U (en) |
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2023
- 2023-05-29 CN CN202321331750.8U patent/CN220327540U/en active Active
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