CN211723130U - Image detection device - Google Patents
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- CN211723130U CN211723130U CN201922202965.XU CN201922202965U CN211723130U CN 211723130 U CN211723130 U CN 211723130U CN 201922202965 U CN201922202965 U CN 201922202965U CN 211723130 U CN211723130 U CN 211723130U
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Abstract
The utility model provides an image detection device, including a detection module and a lighting module. The detection module comprises a photosensitive element and an optical group. The illumination module is at least partially mounted to the detection module. The illumination module emits at least one waveband light to detect the biological tissue to be detected and excite the autofluorescence of the biological tissue to be detected, the reflected waveband light and the autofluorescence pass through the optical group and are received by the photosensitive element, and the photosensitive element generates a digital image according to the reflected waveband light and the autofluorescence. Therefore, the user can be effectively assisted in biomedical detection.
Description
Technical Field
The utility model relates to a detection device especially relates to an image detection device who mainly uses in the biomedical field.
Background
The detection of oral cancer mainly depends on the experience of doctors and visual judgment, and then the suspicious focus is tracked or sliced, which not only relies heavily on the experience of doctors, but also is difficult to effectively discover the disease for the medical history with the early appearance which is not obviously shown.
In many studies, it has been found that in the development process of oral cancer, substances such as reduced nicotinamide adenine dinucleotide (hereinafter abbreviated as NADH), flavin adenine dinucleotide (hereinafter abbreviated as FAD), collagen, etc. are changed due to angiogenesis. The NADH, FAD and collagen can emit autofluorescence of specific wave band after being irradiated by special spectrum. In addition, it has been documented that growth of cancer cells alters the ratio of NADH to FAD in organisms, which can be used to represent tissue metabolism by appropriate calculation. In order to measure the ratio of NADH to FAD, it is necessary to take an NADH image and an FAD image of a site to be measured, and superimpose the images. Therefore, related measuring instruments have been developed to directly measure the affected part, so as to increase the convenience and accuracy of judgment.
However, in the conventional image detection device product, the special spectrum light source and the photographing device are required, so that the product is too large in size, the oral cavity of the patient cannot be detected, or the mouth of the patient must be greatly opened, and the measurement operation is difficult or cannot be stably performed due to discomfort of the patient. In addition, the existing product only adopts blue light for detection, so that the precision is low; although some products are used with movable filter elements to apply to different biological targets, the movable structure has a durability problem, and requires experience and time to adjust parameters, thereby causing a low detection efficiency. On the other hand, although some products attempt to use optical fiber alone for imaging, they have problems of low signal-to-noise ratio, low optical power, and poor power distribution. Meanwhile, the existing image detection devices of the items generally have the problems of light leakage, low resolution and low Depth of field (Depth of focus), so that doctors often cannot improve the accuracy of correct diagnosis through the help of products.
Therefore, how to develop an image detection apparatus capable of effectively improving the aforementioned drawbacks of the prior art is a problem that remains to be solved.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide an image detecting device to solve and improve the problems and disadvantages of the prior art.
Another objective of the present invention is to provide an image detecting apparatus, which can effectively assist the user in biomedical detection by detecting the arrangement of the detecting module and the illuminating module and detecting the reflected wave band light and the autofluorescence generated by the stimulated biological tissue.
Another object of the present invention is to provide an image detecting apparatus, which is capable of combining multi-spectrum light beams into a channel without configuring moving members, and combining the light splitting elements and the lens assembly to form a light path coupling to an optical fiber, and which has high color mixing performance, and can achieve fast and high-precision detection, and simultaneously effectively improve the light output power and make the light power uniformly distributed, and greatly improve the durability. Furthermore, the utility model discloses use multiunit collimating lens group to ensure output beam's collimation to use band pass filter reinforcing fluorescence detection's excitation efficiency, make the SNR promote by a wide margin, more can reach the efficiency of high depth of field and high resolution simultaneously.
Another object of the present invention is to provide an image detecting device, which has a compact optical structure in the embodiments such as the optical fiber bundle and the ring light source, so that the size of the product can be effectively reduced, and the device can be directly applied to various detecting environments or targets, and can improve the comfort level of the person to be detected.
To achieve the above objective, a preferred embodiment of the present invention provides an image detecting device, which includes a detecting module and an illuminating module. The detection module comprises at least one photosensitive element and an optical group; an illumination module at least partially mounted to the detection module; the illumination module emits at least one waveband light to detect a biological tissue to be detected and excite an autofluorescence of the biological tissue to be detected, the reflected waveband light and the autofluorescence pass through the optical group and are received by the photosensitive element, and the photosensitive element generates a digital image according to the reflected waveband light and the autofluorescence.
In one embodiment, the illumination module includes a fiber bundle and a light-gathering portion, wherein a first end of the fiber bundle is disposed at the light-gathering portion, a second end of the fiber bundle is disposed at the detection module, and a plurality of circular optical fibers are disposed around a circumference of the detection module at the second end. Further, each of the optical fibers is a polymer optical fiber or a silica optical fiber.
In one embodiment, the illumination module includes a light source system, the light source system includes a light source and a collimating lens set, and the band light is emitted from the light source and penetrates through the collimating lens set to the optical fiber bundle, so as to be emitted to the biological tissue to be measured through the optical fiber bundle.
In this embodiment, the illumination module further includes a band pass filter disposed between the collimating lens group and the fiber bundle to pass a specific wavelength band of the wavelength band light.
In one embodiment, the lighting module includes: a first light source system including a first light source and a first collimating lens group, wherein the first light source emits a first band light; a second light source system including a second light source and a second collimating lens group, wherein the second light source emits a second band light; a third light source system including a third light source and a third collimating lens group, wherein the third light source emits a third wavelength band light; a first light splitting element corresponding to the first light source and the second light source and arranged between the optical fiber bundle and the first collimating lens group; the second light splitting element corresponds to the first light source and the third light source and is arranged between the optical fiber bundle and the first light splitting element; a coupling lens set arranged between the optical fiber bundle and the second light splitting element; a first band-pass filter disposed between the first collimating lens set and the first light splitting element; the second band-pass filter is arranged between the second collimating lens group and the first light splitting element; the first waveband light sequentially penetrates through the first collimating lens group, the first band-pass filter, the first light splitting element, the second light splitting element and the coupling lens group to the optical fiber bundle, the second waveband light sequentially penetrates through the second collimating lens group and the second band-pass filter, is reflected by the first light splitting element, then penetrates through the second light splitting element and the coupling lens group to the optical fiber bundle, and the third waveband light sequentially penetrates through the third collimating lens group, is reflected by the second light splitting element, and then penetrates through the coupling lens group to the optical fiber bundle.
In this embodiment, the first light source is a blue light diode, the second light source is an uv light diode, the third light source is a yellow light diode, the first band of light is blue light or blue light laser, the second band of light is uv light or uv light laser, the third band of light is yellow light or yellow light laser, the first light splitting element is a dichroic mirror, and the second light splitting element is a beam splitter.
In this embodiment, the first light splitting element has a first coating and the second light splitting element has a second coating.
In this embodiment, the arrangement direction of the second light source and the second collimating lens group is perpendicular to the arrangement direction of the first light source and the first collimating lens group, and is parallel to the arrangement direction of the third light source and the third collimating lens group.
In this embodiment, the first light source, the second light source and the third light source are each independently turned on or off, or simultaneously turned on or off.
In one embodiment, the illumination module includes an annular light source, and the annular light source is sleeved on the detection module.
In this embodiment, the ring light source includes a plurality of diodes, the number of the plurality of diodes is even, and the plurality of diodes are symmetrically distributed on the ring light source. Further, the plurality of diodes include a plurality of blue light diodes, a plurality of ultraviolet light diodes and a plurality of white light diodes, and the number of each of the plurality of blue light diodes, the plurality of ultraviolet light diodes and the plurality of white light diodes is even.
In this embodiment, the illumination module includes a filter element, and the filter element is sleeved on the annular light source. The bandpass wavelength of the excitation light filter needs to be compatible with the corresponding diode light source.
In an embodiment, the detection module further includes a first housing and a second housing, the first housing has an opening, the photosensitive element is disposed in the first housing, the optical group is disposed in the first housing and partially penetrates through the opening, and the second housing is matched with the first housing and seals the first housing.
In this embodiment, the detecting module further includes a mounting tube having a first tube and a second tube, the illuminating module is at least partially mounted on the first tube, the second tube is disposed on the optical assembly, and the second tube has a sealing portion that is sealed with the opening.
In one embodiment, the detection module includes a plurality of photosensitive elements, and the optical group includes a plurality of beam splitting elements and a plurality of band pass filters, so as to separate the band light and the autofluorescence into a plurality of light beams with different bands and guide the light beams to the plurality of photosensitive elements for sensing respectively.
In one embodiment, the photosensitive element is a complementary metal oxide semiconductor, a photosensitive coupling element or a photodiode.
To achieve the above object, a preferred embodiment of the present invention provides an image detecting apparatus for detecting a biological tissue to be detected irradiated by a band light and excited by the band light to generate an autofluorescence, including: a plurality of photosensitive elements; and an optical group including a plurality of light splitting elements and a plurality of band pass filters, wherein the band light and the autofluorescence are separated into a plurality of light beams with different bands by the plurality of light splitting elements and the plurality of band pass filters and guided to the plurality of light sensing elements for sensing respectively.
To achieve the above objective, a preferred embodiment of the present invention provides an image detecting device, which includes a detecting module, an optical fiber bundle and an illuminating module. The detection module comprises a plurality of photosensitive elements and an optical group; a fiber bundle having a first end and a second end, wherein the second end is mounted to the detection module; a lighting module, wherein the first end is disposed at the lighting module, and the lighting module comprises: a first light source system including a first light source and a first collimating lens group, wherein the first light source emits a first band light; a second light source system including a second light source and a second collimating lens group, wherein the second light source emits a second band light; a third light source system including a third light source and a third collimating lens group, wherein the third light source emits a third wavelength band light; a first light splitting element corresponding to the first light source and the second light source and arranged between the optical fiber bundle and the first collimating lens group; the second light splitting element corresponds to the first light source and the third light source and is arranged between the optical fiber bundle and the first light splitting element; a coupling lens set arranged between the optical fiber bundle and the second light splitting element; a first band-pass filter disposed on the first collimating lens set and the first light splitting element; the second band-pass filter is arranged between the second collimating lens group and the first light splitting element; wherein, the first waveband light sequentially penetrates the first collimating lens set, the first band-pass filter, the first beam splitting element, the second beam splitting element and the coupling lens set to the optical fiber bundle, the second waveband light sequentially penetrates the second collimating lens set, the second band-pass filter, is reflected by the first beam splitting element, then penetrates the second beam splitting element and the coupling lens set to the optical fiber bundle, and the third waveband light sequentially penetrates the third collimating lens set, is reflected by the second beam splitting element, and then penetrates the coupling lens set to the optical fiber bundle; the first wavelength band light, the second wavelength band light and the third wavelength band light pass through the optical fiber bundle, are emitted to a biological tissue to be detected from the second end to be detected, and excite the autofluorescence of the biological tissue to be detected, and the reflected first wavelength band light, the reflected second wavelength band light, the reflected third wavelength band light and the autofluorescence are separated into a plurality of light beams with different wavelength bands by the optical group and are guided to the photosensitive elements to be respectively sensed.
The beneficial effects of the utility model reside in that, the utility model provides an image detection device is through the collocation of detecting module and lighting module to spontaneous fluorescence that produces is surveyed to the wave band light that receives the reflection and the biological tissue that awaits measuring, can assist the user to carry out the biomedical detection effectively. Furthermore, by using the multi-spectrum light beam, combining the multi-spectrum light beam into a channel without a configured moving part, and matching the light splitting element and the lens group to form a light path to be coupled to the optical fiber, the multi-spectrum light source has high color mixing performance, can achieve quick and high-precision detection, simultaneously effectively improves the light output power, uniformly distributes the light power, and greatly improves the durability.
Drawings
Fig. 1 is a schematic structural diagram of an image detection apparatus according to an embodiment of the present invention.
Fig. 2 is a top view of a lighting device according to an embodiment of the present invention.
Fig. 3 is an exploded schematic view of a detecting device according to an embodiment of the present invention.
Fig. 4 is a schematic view of a combined structure of a detecting device according to an embodiment of the present invention.
Fig. 5 is a schematic view of a combined structure of a detecting device according to another embodiment of the present invention. The reference numbers are as follows:
1: image detection device
2: lighting module
21: photosensitive element
22: optical group
23: first shell
231: opening of the container
24: second shell
25: mounting tube
251: a first pipe body
252: second tube
2521: sealing part
3: detection module
31: optical fiber bundle
311: first end
312: second end
313: optical fiber
32: light-gathering part
33: first band pass filter
34: second band-pass filter
35: first light splitting element
36: second light splitting element
37: coupling lens group
38: annular light source
39: light filtering element
4: first light source system
41: first light source
42: first collimating lens group
5: second light source system
51: second light source
52: second collimating lens group
6: third light source system
61: third light source
62: third collimating lens group
L1: light of the first wavelength band
L2: light of the second wavelength band
L3: light of a third wavelength band
Detailed Description
Some exemplary embodiments that embody the features and advantages of the present invention will be described in detail in the description of the later sections. It is to be understood that the invention is capable of modification in various ways, all without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
Please refer to fig. 1, fig. 2 and fig. 3, in which fig. 1 is a schematic structural diagram of an image detection apparatus according to an embodiment of the present invention, fig. 2 is a schematic structural view of an illumination apparatus according to an embodiment of the present invention, and fig. 3 is an exploded schematic structural diagram of a detection apparatus according to an embodiment of the present invention. As shown in fig. 1, 2 and 3, according to an embodiment of the present invention, the image detection apparatus 1 includes a detection module 2 and an illumination module 3. The detecting module 2 includes at least one photosensitive element 21 and an optical group 22. The illumination module 3 is at least partially installed in the detection module 2, and emits at least one band of light to detect the biological tissue to be detected and excite the autofluorescence of the biological tissue to be detected, the reflected band of light and the autofluorescence pass through the optical group 22 and are received by the photosensitive element 21, and the photosensitive element 21 generates a digital image according to the reflected band of light and the autofluorescence. Therefore, the user can be effectively assisted in biomedical detection.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 4 is a schematic view of a combination structure of a detecting device according to an embodiment of the present invention. As shown in fig. 1 to 4, the illumination module 3 of the image detecting apparatus 1 of the present invention includes an optical fiber bundle 31 and a light-gathering portion 32, wherein the first end 311 of the optical fiber bundle 31 is disposed at the light-gathering portion 32, the second end 312 of the optical fiber bundle 31 is mounted at the detection module 2, a plurality of circular optical fibers 313 are disposed at the second end 312 around the circumference of the detection module 2, and each optical fiber 313 is a polymer optical fiber or a quartz optical fiber. Of course, the optical fiber bundle 31 can be regarded as an independent component from the detection module 2 and the illumination module 3, and it should be noted that the first end 311 of the optical fiber bundle 31 is disposed on the illumination module 3, and the second end 312 is disposed on the detection module 2.
Please refer to fig. 1 and fig. 2 again. As shown in fig. 1 and 2, the illumination module 3 of the image detection apparatus 1 of the present invention includes a light source system, the light source system includes a light source and a collimating lens group, and the light source system, the light source and the collimating lens group are shown by a first optical system 4, a first light source 41 and a first collimating lens group 42 in fig. 2. Further, the wavelength band light is shown as first wavelength band light L1 in fig. 2. The first wavelength band light L1 is emitted from the first light source 41 and penetrates the first collimating lens group 42 to the fiber bundle 31 to be emitted to the biological tissue to be measured through the fiber bundle 31.
Further, the lighting module 3 of the present invention may further include a band pass filter, which is shown as a first band pass filter 33 in fig. 2, and the first band pass filter 33 is disposed between the first collimating lens group 42 and the optical fiber bundle 31, so as to pass a specific wavelength band of the first wavelength band light L1.
According to the utility model discloses the framework, the utility model discloses still provide an image detection device embodiment of configuration multifrequency spectrum light beam, in this embodiment, the multifrequency spectrum light beam is merged in a passageway and image detection device does not have the configuration moving member to collocation beam splitting component and battery of lens form the light path coupling to optic fibre. Please refer to fig. 1 to 3. The utility model discloses an illumination module 3 of image detection device 1 includes first light source system 4, second light source system 5, third light source system 6, first band pass filter 33, second band pass filter 34, first light splitting component 35, second light splitting component 36 and coupling lens group 37. The first light source system 4 includes a first light source 41 and a first collimating lens group 42, wherein the first light source 41 emits light of a first wavelength band L1. The second light source system 5 includes a second light source 51 and a second collimating lens group 52, wherein the second light source 51 emits a second wavelength band light L2. The third light source system 6 includes a third light source 61 and a third collimating lens group 62, wherein the third light source 61 emits a third wavelength band light L3. The first light splitting element 35 corresponds to the first light source 41 and the second light source 42 and is disposed between the optical fiber bundle 31 and the first collimating lens group 42. The second light splitting element 36 corresponds to the first light source 41 and the third light source 61 and is disposed between the optical fiber bundle 31 and the first light splitting element 35. The coupling lens group 37 is disposed between the optical fiber bundle 31 and the second beam splitter 36. The first bandpass filter 33 is disposed between the first collimating lens group 42 and the first light splitting element 35. The second band pass filter 34 is disposed between the second collimating lens group 52 and the first light splitting element 35.
The first waveband light L1 sequentially passes through the first collimating lens assembly 42, the first bandpass filter 33, the first beam splitter 35, the second beam splitter 36, and the coupling lens assembly 37 to the optical fiber bundle 31. The light L2 in the second wavelength band sequentially passes through the second collimating lens assembly 52 and the second band-pass filter 34, is reflected by the first beam splitter 35, and then passes through the second beam splitter 36 and the coupling lens assembly 37 to the fiber bundle 31. The third wavelength band light L3 sequentially passes through the third collimating lens assembly 62, is reflected by the second beam splitting element 36, and then passes through the coupling lens assembly 37 to the fiber bundle 31. Then, the first wavelength band light L1, the second wavelength band light L2, and the third wavelength band light L3 are emitted from the second end 312 to the biological tissue to be detected through the optical fiber bundle 31, and the autofluorescence of the biological tissue to be detected is excited, and the reflected first wavelength band light L1, the reflected second wavelength band light L2, the reflected third wavelength band light L3, and the autofluorescence are separated into a plurality of light beams with different wavelength bands by the optical group 22 and guided to the light sensing element 21 for sensing respectively. It is worth mentioning that the present invention employs three collimating lens groups to ensure the collimation of the output beam, which is crucial for uniform illumination. Furthermore, because the utility model discloses an image detection device does not have the moving member, belongs to static state design and more durable, and light signal can not mix together yet. The problems of cross-talk effects and background noise can be minimized.
Since the most important detection light sources in biomedical detection are mainly blue light, ultraviolet light and white light, the image detection apparatus 1 preferably provides the three light sources, wherein the white light may be a combination of blue light and yellow light. In some embodiments, the first light source 41 is a blue diode, the second light source 51 is a uv diode, and the third light source 61 is a yellow diode. The diode can be a laser diode, and thus the first band light L1 is blue light or blue light laser, the second band light L2 is ultraviolet light or ultraviolet light laser, and the third band light L3 is yellow light or yellow light laser. The first light splitting element 35 is a Dichroic Mirror (Dichroic Mirror), and the second light splitting element 36 is a Beam splitter (Beam splitter), but not limited thereto.
Preferably, the first light splitting element 35 has a first coating, and the second light splitting element 36 has a second coating, and the first coating and the second coating can partially reflect and partially refract light with specific wavelengths, so that light beams with specific wavelength bands can be transmitted, refracted or reflected.
In some embodiments, the arrangement direction of the second light source 51 and the second collimating lens group 52 is perpendicular to the arrangement direction of the first light source 41 and the first collimating lens group 42. The arrangement direction of the second light source 51 and the second collimating lens group 52 is parallel to the arrangement direction of the third light source 61 and the third collimating lens group 62. Further, the lighting module 3 may include at least one power source, at least one driving circuit, and at least one heat dissipation member for controlling the light source, and the number thereof may vary according to actual needs. Therefore, the first light source 41, the second light source 51 and the third light source 61 can be turned on or off independently, or simultaneously. In other words, the operation of the first light source 41, the second light source 51 and the third light source 61 may be a continuous or pulse operation, either individually or in conjunction. Arrange and the mode of operation through foretell light path, make the utility model discloses have high colour mixture performance, can reach quick and the detection of high accuracy, effectively promote light output power simultaneously and make the luminous power distribute uniformly to improve the durability by a wide margin. Furthermore, the utility model discloses use multiunit collimating lens group to ensure output beam's collimation to use band pass filter reinforcing fluorescence detection's excitation efficiency, make the SNR promote by a wide margin, more can reach the efficiency of high depth of field and high resolution simultaneously.
According to the utility model discloses the framework, the utility model discloses another provide an image detection device embodiment who disposes annular light source. Please refer to fig. 1 and 5, wherein fig. 5 is a schematic view of a combination structure of a detecting device according to another embodiment of the present invention. As shown in fig. 1 and fig. 5, the illumination module 3 includes a ring light source 38, and the ring light source 38 is sleeved on the detection module 2. In this embodiment, the ring light source 38 includes a plurality of diodes 381, the number of the plurality of diodes 381 is even, and the plurality of diodes 381 are symmetrically distributed on the ring light source 38. Specifically, the plurality of diodes include a plurality of blue light diodes, a plurality of ultraviolet light diodes, and a plurality of white light diodes, and the number of each of the plurality of blue light diodes, the plurality of ultraviolet light diodes, and the plurality of white light diodes is an even number. In some embodiments, the lighting module 3 further includes a filter element 39, and the filter element 39 is sleeved on the annular light source 38, there may be a plurality of excitation light filters on the filter element 39, and the bandpass wavelength of the excitation light filters needs to conform to the corresponding diode light source. Since this arrangement is of an integrated design, the overall size of the image detection apparatus can be greatly reduced.
The detailed structure of the detection module of the image detection apparatus of the present invention will be described in detail below. Please refer to fig. 3, fig. 4 and fig. 5. As shown in fig. 3 to 5, the detection module 2 of the image detection apparatus of the present invention includes a photosensitive element 21, an optical set 22, a first housing 23, a second housing 24, and an installation tube 25. The first housing 23 has an opening 231, the photosensitive element 21 is disposed in the first housing 23, the optical group 22 is disposed in the first housing 23 and partially penetrates through the opening 231, and the second housing 24 matches with the first housing 23 and closes the first housing 23. The mounting tube 25 has a first tube 251 and a second tube 252, the illumination module 3 is at least partially mounted on the first tube 251, and the total outer diameter of the first tube 251 and the mounted illumination module 3, such as the optical fiber bundle 31 or the ring light source 38, is preferably 25 to 30 mm, but not limited thereto, since the size is smaller than that of the conventional image detection apparatus, it can be applied to various detection environments, such as being placed in the mouth of a patient, and can eliminate interference from the external environment. The second tube 252 is disposed on the optical set 22, and the second tube 252 has a sealing portion 2521, and the sealing portion 2521 is sealed with the opening 231.
In some embodiments, the detection module 2 includes a plurality of photosensitive elements 21, and the optical set 22 includes a plurality of light splitting elements and a plurality of band pass filters, so as to separate the at least one wavelength band light and the autofluorescence into a plurality of light beams with different wavelength bands and guide the light beams to the plurality of photosensitive elements 21 for sensing respectively. Specifically, the photosensitive element may be a Complementary Metal Oxide Semiconductor (CMOS), a photosensitive coupled device (CCD), or a photodiode (Photo Diode), but is not limited thereto.
Please refer to fig. 1 and fig. 2 again. In some embodiments, the image detection apparatus 1 provided herein is verified that the output power at the working distance of 40 mm can be uniformly distributed within 80 mm in diameter. Further, when applied to human disease detection, the optical power of the ultraviolet light irradiated on the oral cavity meets the specification of the ultraviolet light exposure limit, and meanwhile, the detection can be effectively carried out. In addition, most of the light from the third light source 61 hits the inner wall of the device after being transmitted, so no scattering noise is caused, and the blue light from the first light source 41 is completely transmitted and the yellow light from the third light source 61 is reflected by 100%, so no loss is caused. On the other hand, the maximum depth of field of the image detection apparatus 1 of the present invention can reach 16 mm, which is better than the image detection apparatuses in the market. The image detection apparatus 1 can display extremely high resolution and clear images at different working distances, for example, 30 to 90 mm. Finally, when the first light source 41, the second light source 42 and the third light source 43 are sequentially turned on or off in a time-sequential manner for detection, the total time sequence of the first light source 41, the second light source 42 and the third light source 43 takes less than 1 second in each period, so that rapid detection can be realized.
To sum up, the utility model provides an image detection device is through the collocation of surveying module and lighting module to spontaneous fluorescence that the stimulated emission produced to the wave band light that receives the reflection and the biological tissue that awaits measuring detects, can assist the user to carry out the biomedical detection effectively. Furthermore, by using the multi-spectrum light beam, combining the multi-spectrum light beam into a channel without a configured moving part, and matching the light splitting element and the lens group to form a light path to be coupled to the optical fiber, the multi-spectrum light source has high color mixing performance, can achieve quick and high-precision detection, simultaneously effectively improves the light output power, uniformly distributes the light power, and greatly improves the durability. Furthermore, the utility model discloses use multiunit collimating lens group to ensure output beam's collimation to use band pass filter reinforcing fluorescence detection's excitation efficiency, make the SNR promote by a wide margin, more can reach the efficiency of high depth of field and high resolution simultaneously. In short, the utility model discloses an implementation such as optic fibre bundle and annular light source has compact optical structure for the product size can reduce effectively, with the various detection ring border of direct application or mark, and can promote the comfort level that receives the measuring person.
Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to one skilled in the art that various modifications can be made without departing from the scope of the invention as defined in the appended claims.
Claims (20)
1. An image detection apparatus, characterized by comprising:
a detection module including at least one photosensitive element and an optical group; and
an illumination module at least partially mounted to the detection module;
the illumination module emits at least one waveband light to detect a biological tissue to be detected and excite an autofluorescence of the biological tissue to be detected, the reflected waveband light and the autofluorescence pass through the optical group and are received by the photosensitive element, and the photosensitive element generates a digital image according to the reflected waveband light and the autofluorescence.
2. The image capturing device of claim 1, wherein the illumination module includes a fiber bundle and a light-gathering portion, wherein a first end of the fiber bundle is disposed at the light-gathering portion, a second end of the fiber bundle is mounted to the detection module, and a plurality of circular fibers are disposed around a circumference of the detection module at the second end.
3. The image capturing device of claim 2, wherein the illumination module includes a light source system, the light source system includes a light source and a collimating lens set, and the wavelength band light is emitted from the light source and passes through the collimating lens set to the fiber bundle, so as to be emitted to the biological tissue to be tested through the fiber bundle.
4. The image capturing device of claim 3, wherein the illumination module further comprises a band pass filter disposed between the collimating lens assembly and the fiber bundle to pass a specific wavelength band of the wavelength band of light.
5. The image sensing device as claimed in claim 2, wherein the illumination module comprises:
a first light source system including a first light source and a first collimating lens group, wherein the first light source emits a first band light;
a second light source system including a second light source and a second collimating lens group, wherein the second light source emits a second band light;
a third light source system including a third light source and a third collimating lens group, wherein the third light source emits a third wavelength band light;
a first light splitting element corresponding to the first light source and the second light source and arranged between the optical fiber bundle and the first collimating lens group;
the second light splitting element corresponds to the first light source and the third light source and is arranged between the optical fiber bundle and the first light splitting element;
a coupling lens set arranged between the optical fiber bundle and the second light splitting element;
a first band-pass filter disposed between the first collimating lens set and the first light splitting element; and
the second band-pass filter is arranged between the second collimating lens group and the first light splitting element;
the first waveband light sequentially penetrates through the first collimating lens group, the first band-pass filter, the first light splitting element, the second light splitting element and the coupling lens group to the optical fiber bundle, the second waveband light sequentially penetrates through the second collimating lens group and the second band-pass filter, is reflected by the first light splitting element, then penetrates through the second light splitting element and the coupling lens group to the optical fiber bundle, and the third waveband light sequentially penetrates through the third collimating lens group, is reflected by the second light splitting element, and then penetrates through the coupling lens group to the optical fiber bundle.
6. The image capturing device of claim 5, wherein the first light source is a blue light diode, the second light source is a UV light diode, the third light source is a yellow light diode, the first band of light is a blue or blue laser, the second band of light is a UV or UV laser, the third band of light is a yellow or yellow laser, the first beam splitter is a dichroic mirror, and the second beam splitter is a beam splitter.
7. The image sensor as claimed in claim 5, wherein the first beam splitter element has a first coating and the second beam splitter element has a second coating.
8. The image capturing device as claimed in claim 5, wherein the second light source and the second collimating lens group are arranged in a direction perpendicular to the first light source and the first collimating lens group and parallel to the third light source and the third collimating lens group.
9. The image detecting device as claimed in claim 5, wherein the first light source, the second light source and the third light source are turned on or off independently or simultaneously.
10. The image sensor of claim 2, wherein each of the optical fibers is a polymer optical fiber or a silica optical fiber.
11. The image detecting device of claim 1, wherein the illuminating module includes a ring light source, and the ring light source is disposed around the detecting module.
12. The image capturing device as claimed in claim 11, wherein the ring light source includes a plurality of diodes, the number of the plurality of diodes is even, and the plurality of diodes are symmetrically distributed on the ring light source.
13. The image detecting device of claim 12, wherein the plurality of diodes include a plurality of blue light diodes, a plurality of ultraviolet light diodes and a plurality of white light diodes, and the number of the plurality of blue light diodes, the plurality of ultraviolet light diodes and the plurality of white light diodes is even.
14. The image detecting device of claim 11, wherein the illumination module includes a filter element, and the filter element is disposed around the annular light source.
15. The image detecting device as claimed in claim 1, wherein the detecting module further comprises a first housing and a second housing, the first housing has an opening, the photosensitive element is disposed in the first housing, the optical group is disposed in the first housing and partially penetrates through the opening, and the second housing is matched with the first housing and closes the first housing.
16. The image capturing device of claim 15, wherein the detecting module further comprises a mounting tube having a first tube and a second tube, the illuminating module is at least partially mounted on the first tube, the second tube is disposed around the optics group, and the second tube has a sealing portion that is sealed with the opening.
17. The image detecting device of claim 1, wherein the detecting module includes a plurality of photosensitive elements, and the optical assembly includes a plurality of beam splitting elements and a plurality of band pass filters, so as to separate the band light and the autofluorescence into a plurality of light beams with different bands and guide the light beams to the plurality of photosensitive elements for sensing respectively.
18. The image sensor of claim 1, wherein the photosensitive element is a CMOS, a CCD or a photodiode.
19. An image detecting apparatus for detecting a biological tissue to be detected irradiated with light of a wavelength band and excited by the light of the wavelength band to generate an autofluorescence, comprising:
a plurality of photosensitive elements; and
and the optical group comprises a plurality of light splitting elements and a plurality of band-pass filters, wherein the waveband light and the autofluorescence are separated into a plurality of light beams with different wavebands by the light splitting elements and the band-pass filters and are guided to the photosensitive elements for sensing respectively.
20. An image detection apparatus, characterized by comprising:
the detection module comprises a plurality of photosensitive elements and an optical group;
a fiber bundle having a first end and a second end, wherein the second end is mounted to the detection module;
a lighting module, wherein the first end is disposed at the lighting module, and the lighting module comprises:
a first light source system including a first light source and a first collimating lens group, wherein the first light source emits a first band light;
a second light source system including a second light source and a second collimating lens group, wherein the second light source emits a second band light;
a third light source system including a third light source and a third collimating lens group, wherein the third light source emits a third wavelength band light;
a first light splitting element corresponding to the first light source and the second light source and arranged between the optical fiber bundle and the first collimating lens group;
the second light splitting element corresponds to the first light source and the third light source and is arranged between the optical fiber bundle and the first light splitting element;
a coupling lens set arranged between the optical fiber bundle and the second light splitting element;
a first band-pass filter disposed on the first collimating lens set and the first light splitting element; and
the second band-pass filter is arranged between the second collimating lens group and the first light splitting element;
wherein, the first waveband light sequentially penetrates the first collimating lens set, the first band-pass filter, the first beam splitting element, the second beam splitting element and the coupling lens set to the optical fiber bundle, the second waveband light sequentially penetrates the second collimating lens set, the second band-pass filter, is reflected by the first beam splitting element, then penetrates the second beam splitting element and the coupling lens set to the optical fiber bundle, and the third waveband light sequentially penetrates the third collimating lens set, is reflected by the second beam splitting element, and then penetrates the coupling lens set to the optical fiber bundle;
the first wavelength band light, the second wavelength band light and the third wavelength band light pass through the optical fiber bundle, are emitted to a biological tissue to be detected from the second end to be detected, and excite the autofluorescence of the biological tissue to be detected, and the reflected first wavelength band light, the reflected second wavelength band light, the reflected third wavelength band light and the autofluorescence are separated into a plurality of light beams with different wavelength bands by the optical group and are guided to the photosensitive elements to be respectively sensed.
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| CN113483676A (en) * | 2021-07-07 | 2021-10-08 | 珠海横琴美加澳光电技术有限公司 | Displacement sensing device based on spectrum confocal chromaticity measurement and using method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113483676A (en) * | 2021-07-07 | 2021-10-08 | 珠海横琴美加澳光电技术有限公司 | Displacement sensing device based on spectrum confocal chromaticity measurement and using method |
| CN113483676B (en) * | 2021-07-07 | 2023-03-14 | 珠海横琴美加澳光电技术有限公司 | Displacement sensing device based on spectrum confocal chromaticity measurement and use method |
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