CN107456207B - Fundus camera optical assembly based on mobile equipment - Google Patents
Fundus camera optical assembly based on mobile equipment Download PDFInfo
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- CN107456207B CN107456207B CN201710772729.4A CN201710772729A CN107456207B CN 107456207 B CN107456207 B CN 107456207B CN 201710772729 A CN201710772729 A CN 201710772729A CN 107456207 B CN107456207 B CN 107456207B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 109
- 230000008878 coupling Effects 0.000 claims abstract description 45
- 238000010168 coupling process Methods 0.000 claims abstract description 45
- 238000005859 coupling reaction Methods 0.000 claims abstract description 45
- 238000003384 imaging method Methods 0.000 claims abstract description 18
- 238000005286 illumination Methods 0.000 claims description 39
- 125000006850 spacer group Chemical group 0.000 claims description 17
- 230000003760 hair shine Effects 0.000 claims 1
- 208000006550 Mydriasis Diseases 0.000 abstract description 12
- 239000011521 glass Substances 0.000 abstract description 11
- 201000010099 disease Diseases 0.000 abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000012216 screening Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 40
- 230000003902 lesion Effects 0.000 description 10
- 206010025421 Macule Diseases 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000003086 colorant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 241000227425 Pieris rapae crucivora Species 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000036541 health Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
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- Eye Examination Apparatus (AREA)
Abstract
The invention provides a fundus imaging optical assembly based on mobile equipment, which comprises: an optical attachment comprising a partially reflective surface; the lighting assembly is positioned at one end of the inner part of the outer frame and is connected with the inner wall of the outer frame, the direction of light rays emitted by the lighting assembly faces towards the optical accessory and is perpendicular to the shooting direction of the camera of the mobile equipment, and the light rays emitted by the lighting assembly irradiate on the reflecting surface and form reflected light beams pointing to the glasses in the view field of the camera; the coupling device is detachably connected with the mobile device, positions the optical accessory at a position corresponding to a camera of the mobile device, and fixedly connects the lighting assembly on one side of the optical accessory. The invention can be matched with a plurality of mobile devices with different models, achieves the purpose that common medical personnel and even normal people can take pictures without mydriasis and mydriasis eyeground only by a smart phone, and provides a powerful tool for eyeground screening and eyeground disease monitoring in a wide range.
Description
Technical Field
The invention relates to the field of optical equipment, in particular to a fundus imaging optical assembly based on mobile equipment.
Background
In the medical and health fields, fundus photographs or video recordings are important bases and indicators for assessing eye health and disease extent. Currently, this examination is performed at an ophthalmic clinic using non-portable ophthalmoscopic instruments assisted by optical and computer equipment placed on a cumbersome and expensive support. However, such instruments have proven impractical and have greatly limited fundus examination, particularly in bedridden patients, pediatric patients, disabled patients, or any other patient who cannot physically visit an ophthalmic clinic.
Related systems are viewable on web pages www.welchallyn.com/remotics/iExaminer/index, html.
The popularization and usability of the system is limited due to its expensive, heavy and non-ergonomic nature.
Moreover, the mobile device is used only as an image acquisition device, functionally limiting its use, in particular with respect to the available field of view extension and the consequent accuracy of the examination.
Furthermore, it is very difficult for a non-expert person to use the system. In particular, the support of the mobile device may deviate from the position of the instrument, thus requiring frequent adjustment of the position.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fundus imaging optical assembly based on mobile equipment aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
the invention provides a fundus imaging optical assembly based on mobile equipment, which comprises:
an optical attachment comprising a partially reflective surface;
the illumination assembly is positioned at one end of the inner part of the outer frame and connected with the inner wall of the outer frame, the direction of light rays emitted by the illumination assembly faces towards the optical accessory and is perpendicular to the shooting direction of the camera of the mobile equipment, and the light rays emitted by the illumination assembly irradiate on the reflecting surface and form reflected light beams pointing to the glasses in the view field of the camera;
and the coupling device is detachably connected with the mobile device, positions the optical accessory at a position corresponding to a camera of the mobile device, and fixedly connects the lighting assembly on one side of the optical accessory.
The fundus imaging optical component based on the mobile equipment has the beneficial effects that the fundus imaging optical component based on the mobile equipment can be matched with various mobile equipment with different models to provide various shooting fields of view: 5 degrees, 20 degrees, 40 degrees, 60 degrees and 120 degrees, achieves the purpose that common medical staff and even normal people can take photos without mydriasis and mydriasis eyeground only by a smart phone, and provides a powerful tool for wide-range eyeground screening and eyeground disease monitoring. The device mainly comprises an illumination system with at least one light source for independently illuminating eyes of a patient, and can emit observation lights with different colors of white, red, green, yellow and the like. A binocular vision system connected with the illumination system is adopted by a doctor, and eyes can be inspected under the irradiation of an observation light source. The shooting process is realized by completely utilizing the shooting function of the intelligent mobile phone, and the optical lens group device specially used for shooting the fundus is fixed on the mobile phone by the special fixing clamp which is also designed to form a fundus camera to take the picture of fundus tissues.
Further, the coupling device comprises an outer frame and a connecting piece, the outer frame is a hollow frame body, the outer frame is detachably connected with the mobile equipment through the connecting piece, the optical accessory is located at one end of the inner portion of the outer frame and is connected with the inner wall of the outer frame, and the lighting assembly is located at one end of the inner portion of the outer frame and is connected with the inner wall of the outer frame.
The technical scheme has the beneficial effects that the structure of the specific coupling device is provided, the hollow outer frame can meet the fixing requirements of other accessories, all the accessories are combined into a whole, and a light path can be formed between the glasses to be detected and the lenses of the mobile equipment, so that the detection is facilitated. The connecting piece not only can be a clip type connecting piece, but also can be a cover body clamping piece matched with the shell of the mobile device, and can also be other connecting structures which can meet the requirement of connecting the chain with the detachable frame at the lens of the mobile device.
Further, the lighting assembly is capable of providing four color light sources, red, yellow, green, and white.
Further, the lighting assembly is an LED lamp group arranged in an array, and the LED lamp group comprises at least one red LED lamp, at least one yellow LED lamp, at least one green LED lamp and at least one white LED lamp.
Further, the lighting assembly comprises a white light LED lamp set and a filter plate, wherein the white light LED lamp set and the filter plate are connected with the coupling device, and the filter plate is positioned between the white light LED lamp set and the optical accessory.
Further, the coupling device is connected with an inserting plate groove, the optical filter plate is detachably inserted into the inserting plate groove, and the optical filter plate is a red optical filter plate, a green optical filter plate or a yellow optical filter plate.
The above-mentioned further scheme has the beneficial effects that the lighting component can provide red, white, yellow and green light sources according to different detection requirements, so that the detection result is clearer and more accurate, for example, for observing the lesion in the macula area, the detection using red light is clearer and more definite than the detection result using ordinary white light, and the detection and treatment of early lesions are facilitated.
Further, the optical attachment is a beam splitter.
Further, the optical accessory comprises a first spectroscope and a second spectroscope, and an included angle between the first spectroscope and the second spectroscope is 30-60 degrees.
The above further solution has the advantage of providing a specific structure of two optical attachments with reflecting surfaces, wherein for the beam splitter the reflecting surfaces are partial reflecting surfaces located therein; for the combination comprising the first beam splitter and the second beam splitter, the reflecting surface with partial reflection is the surface of the first beam splitter facing the illumination assembly.
Further, a polarizing filter is included, the polarizing filter being positioned between the optical accessory and the illumination assembly, the polarizing filter being coupled to the coupling device.
The further scheme has the beneficial effects that the use of the polarized filter avoids the interference of stray light, so that the light rays irradiated into human eyes are softer, and the detection effect is better while the human eyes are not stimulated.
Further, the device also comprises a baffle plate, wherein the middle part of the baffle plate is provided with a small hole, the baffle plate is positioned between the optical accessory and the illumination component, and the baffle plate is connected with the coupling device.
The further scheme has the beneficial effects that the light polymerization is realized by utilizing the small hole imaging principle, so that the detection result is clearer and more accurate.
Drawings
Fig. 1 is a schematic structural diagram of a fundus imaging optical assembly based on a mobile device of the present invention;
FIG. 2 is a schematic diagram of a fundus camera optical assembly based on a mobile device of the present invention;
FIG. 3 is a schematic diagram of a fundus camera optical assembly based on a mobile device of the present invention;
fig. 4 is a schematic structural diagram of a fundus imaging optical assembly based on a mobile device according to the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Example 1
As shown in fig. 1, the present invention provides a fundus imaging optical assembly based on a mobile device, comprising:
an optical attachment 1, said optical attachment 1 comprising a partially reflective surface;
the illumination assembly 2 is positioned at one end of the inner part of the outer frame and is connected with the inner wall of the outer frame, the direction of light rays emitted by the illumination assembly 2 faces the optical accessory 1 to be perpendicular to the shooting direction of the camera of the mobile equipment, and the light rays emitted by the illumination assembly 2 irradiate on the reflecting surface and form reflected light beams pointing to the glasses in the visual field of the camera;
a coupling device 3, the coupling device 3 is detachably connected with the mobile device, the coupling device 3 positions the optical accessory 1 at a position corresponding to a camera of the mobile device, and fixedly connects the lighting assembly 2 on one side of the optical accessory 1.
The fundus camera optical component based on the mobile equipment can be matched with various mobile equipment with different models to provide various shooting fields of view: 5 degrees, 20 degrees, 40 degrees, 60 degrees and 120 degrees, achieves the purpose that common medical staff and even normal people can take photos without mydriasis and mydriasis eyeground only by a smart phone, and provides a powerful tool for wide-range eyeground screening and eyeground disease monitoring. The device mainly comprises an illumination system with at least one light source for independently illuminating eyes of a patient, and can emit observation lights with different colors of white, red, green, yellow and the like. A binocular vision system connected with the illumination system is adopted by a doctor, and eyes can be inspected under the irradiation of an observation light source. The shooting process is realized by completely utilizing the shooting function of the intelligent mobile phone, and the optical lens group device specially used for shooting the fundus is fixed on the mobile phone by the special fixing clamp which is also designed to form a fundus camera to take the picture of fundus tissues.
The coupling device 3 comprises an outer frame and connecting pieces, the outer frame is a hollow frame body, the outer frame is detachably connected with the mobile equipment through the connecting pieces, the optical accessory 1 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame, and the lighting assembly 2 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame. The hollow outer frame can meet the fixing requirements of other accessories, and combines all the accessories into a whole, and a light path can be formed between the glasses to be detected and the lenses of the mobile equipment, so that the detection is facilitated. The connecting piece not only can be a clip type connecting piece, but also can be a cover body clamping piece matched with the shell of the mobile device, and can also be other connecting structures which can meet the requirement of connecting the chain with the detachable frame at the lens of the mobile device.
The lighting assembly is capable of providing four color light sources, red, yellow, green, and white.
The lighting assembly 2 comprises a white light LED lamp set and a filter plate 4, wherein the white light LED lamp set and the filter plate 4 are connected with the coupling device 3, and the filter plate 4 is positioned between the white light LED lamp set and the optical accessory 1.
The coupling device 3 is connected with an inserting plate groove 5, the filter plate 4 is detachably inserted into the inserting plate groove 5, and the filter plate 4 is a red light filter plate, a green light filter plate or a yellow light filter plate.
The illumination component can provide red, white, yellow and green light sources according to different detection requirements, so that detection results are clearer and more accurate, for example, for observing the macula lesions, detection by using red light is clearer and more clear than detection results by using common white light, and the detection and treatment of early lesions are facilitated.
The optical accessory 1 is a beam splitter, and the reflecting surface is a partial reflecting surface positioned in the beam splitter; the reflective surface faces one side of the lighting assembly.
A polarizing filter 6 is also included, said polarizing filter 6 being located between the optical accessory 1 and the lighting assembly 2, said polarizing filter 6 being connected to the coupling means 3. The use of the polarized filter avoids the interference of stray light, so that the light rays irradiated into human eyes are softer, and the detection effect is better while the human eyes are not stimulated.
Also included is a spacer 7, the middle of the spacer 7 having a small hole, the spacer 7 being located between the optical accessory 1 and the lighting assembly 2, the spacer 7 being connected to the coupling means 3. And the aggregation of light is realized by utilizing the small-hole imaging principle, so that the detection result is clearer and more accurate.
Example 2
As shown in fig. 2, the present invention provides a fundus imaging optical assembly based on a mobile device, comprising:
an optical attachment 1, said optical attachment 1 comprising a partially reflective surface;
the illumination assembly 2 is positioned at one end of the inner part of the outer frame and is connected with the inner wall of the outer frame, the direction of light rays emitted by the illumination assembly 2 faces the optical accessory 1 to be perpendicular to the shooting direction of the camera of the mobile equipment, and the light rays emitted by the illumination assembly 2 irradiate on the reflecting surface and form reflected light beams pointing to the glasses in the visual field of the camera;
a coupling device 3, the coupling device 3 is detachably connected with the mobile device, the coupling device 3 positions the optical accessory 1 at a position corresponding to a camera of the mobile device, and fixedly connects the lighting assembly 2 on one side of the optical accessory 1.
The fundus camera optical component based on the mobile equipment can be matched with various mobile equipment with different models to provide various shooting fields of view: 5 degrees, 20 degrees, 40 degrees, 60 degrees and 120 degrees, achieves the purpose that common medical staff and even normal people can take photos without mydriasis and mydriasis eyeground only by a smart phone, and provides a powerful tool for wide-range eyeground screening and eyeground disease monitoring. The device mainly comprises an illumination system with at least one light source for independently illuminating eyes of a patient, and can emit observation lights with different colors of white, red, green, yellow and the like. A binocular vision system connected with the illumination system is adopted by a doctor, and eyes can be inspected under the irradiation of an observation light source. The shooting process is realized by completely utilizing the shooting function of the intelligent mobile phone, and the optical lens group device specially used for shooting the fundus is fixed on the mobile phone by the special fixing clamp which is also designed to form a fundus camera to take the picture of fundus tissues.
The coupling device 3 comprises an outer frame and connecting pieces, the outer frame is a hollow frame body, the outer frame is detachably connected with the mobile equipment through the connecting pieces, the optical accessory 1 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame, and the lighting assembly 2 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame. The hollow outer frame can meet the fixing requirements of other accessories, and combines all the accessories into a whole, and a light path can be formed between the glasses to be detected and the lenses of the mobile equipment, so that the detection is facilitated. The connecting piece not only can be a clip type connecting piece, but also can be a cover body clamping piece matched with the shell of the mobile device, and can also be other connecting structures which can meet the requirement of connecting the chain with the detachable frame at the lens of the mobile device.
The lighting assembly is capable of providing four color light sources, red, yellow, green, and white.
The lighting assembly 2 is an array-arranged LED lamp set, and the LED lamp set comprises at least one red LED lamp, at least one yellow LED lamp, at least one green LED lamp and at least one white LED lamp.
The illumination component can provide red, white, yellow and green light sources according to different detection requirements, so that detection results are clearer and more accurate, for example, for observing the macula lesions, detection by using red light is clearer and more clear than detection results by using common white light, and the detection and treatment of early lesions are facilitated.
The optical attachment 1 is a beam splitter.
A polarizing filter 6 is also included, said polarizing filter 6 being located between the optical accessory 1 and the lighting assembly 2, said polarizing filter 6 being connected to the coupling means 3. The use of the polarized filter avoids the interference of stray light, so that the light rays irradiated into human eyes are softer, and the detection effect is better while the human eyes are not stimulated.
Also included is a spacer 7, the middle of the spacer 7 having a small hole, the spacer 7 being located between the optical accessory 1 and the lighting assembly 2, the spacer 7 being connected to the coupling means 3. And the aggregation of light is realized by utilizing the small-hole imaging principle, so that the detection result is clearer and more accurate.
Example 3
As shown in fig. 3, the present invention provides a fundus imaging optical assembly based on a mobile device, comprising:
an optical attachment 1, said optical attachment 1 comprising a partially reflective surface;
the illumination assembly 2 is positioned at one end of the inner part of the outer frame and is connected with the inner wall of the outer frame, the direction of light rays emitted by the illumination assembly 2 faces the optical accessory 1 to be perpendicular to the shooting direction of the camera of the mobile equipment, and the light rays emitted by the illumination assembly 2 irradiate on the reflecting surface and form reflected light beams pointing to the glasses in the visual field of the camera;
a coupling device 3, the coupling device 3 is detachably connected with the mobile device, the coupling device 3 positions the optical accessory 1 at a position corresponding to a camera of the mobile device, and fixedly connects the lighting assembly 2 on one side of the optical accessory 1.
The fundus camera optical component based on the mobile equipment can be matched with various mobile equipment with different models to provide various shooting fields of view: 5 degrees, 20 degrees, 40 degrees, 60 degrees and 120 degrees, achieves the purpose that common medical staff and even normal people can take photos without mydriasis and mydriasis eyeground only by a smart phone, and provides a powerful tool for wide-range eyeground screening and eyeground disease monitoring. The device mainly comprises an illumination system with at least one light source for independently illuminating eyes of a patient, and can emit observation lights with different colors of white, red, green, yellow and the like. A binocular vision system connected with the illumination system is adopted by a doctor, and eyes can be inspected under the irradiation of an observation light source. The shooting process is realized by completely utilizing the shooting function of the intelligent mobile phone, and the optical lens group device specially used for shooting the fundus is fixed on the mobile phone by the special fixing clamp which is also designed to form a fundus camera to take the picture of fundus tissues.
The coupling device 3 comprises an outer frame and connecting pieces, the outer frame is a hollow frame body, the outer frame is detachably connected with the mobile equipment through the connecting pieces, the optical accessory 1 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame, and the lighting assembly 2 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame. The hollow outer frame can meet the fixing requirements of other accessories, and combines all the accessories into a whole, and a light path can be formed between the glasses to be detected and the lenses of the mobile equipment, so that the detection is facilitated. The connecting piece not only can be a clip type connecting piece, but also can be a cover body clamping piece matched with the shell of the mobile device, and can also be other connecting structures which can meet the requirement of connecting the chain with the detachable frame at the lens of the mobile device.
The lighting assembly is capable of providing four color light sources, red, yellow, green, and white.
The lighting assembly 2 comprises a white light LED lamp set and a filter plate 4, wherein the white light LED lamp set and the filter plate 4 are connected with the coupling device 3, and the filter plate 4 is positioned between the white light LED lamp set and the optical accessory 1.
The coupling device 3 is connected with the plugboard groove 5, the filter plate 4 is detachably spliced in the plugboard groove 5, the filter plate 4 comprises a red light filter plate 4, a green light filter plate 4 and a yellow light filter plate 4, one or two of the filter plates can be combined when in use, and the filter plate can be omitted when white light is used when the white light is required.
The illumination component can provide red, white, yellow and green light sources according to different detection requirements, so that detection results are clearer and more accurate, for example, for observing the macula lesions, detection by using red light is clearer and more clear than detection results by using common white light, and the detection and treatment of early lesions are facilitated.
The optical accessory 1 comprises a first spectroscope 11 and a second spectroscope 12, wherein an included angle between the first spectroscope and the second spectroscope is 30-60 degrees. The reflecting surface with partial reflection is the surface of the first beam splitter 11 facing the illumination assembly.
A polarizing filter 6 is also included, said polarizing filter 6 being located between the optical accessory 1 and the lighting assembly 2, said polarizing filter 6 being connected to the coupling means 3. The use of the polarized filter avoids the interference of stray light, so that the light rays irradiated into human eyes are softer, and the detection effect is better while the human eyes are not stimulated.
Also included is a spacer 7, the middle of the spacer 7 having a small hole, the spacer 7 being located between the optical accessory 1 and the lighting assembly 2, the spacer 7 being connected to the coupling means 3. And the aggregation of light is realized by utilizing the small-hole imaging principle, so that the detection result is clearer and more accurate.
Example 4
As shown in fig. 4, the present invention provides a fundus imaging optical assembly based on a mobile device, comprising:
an optical attachment 1, said optical attachment 1 comprising a partially reflective surface;
the illumination assembly 2 is positioned at one end of the inner part of the outer frame and is connected with the inner wall of the outer frame, the direction of light rays emitted by the illumination assembly 2 faces the optical accessory 1 to be perpendicular to the shooting direction of the camera of the mobile equipment, and the light rays emitted by the illumination assembly 2 irradiate on the reflecting surface and form reflected light beams pointing to the glasses in the visual field of the camera;
a coupling device 3, the coupling device 3 is detachably connected with the mobile device, the coupling device 3 positions the optical accessory 1 at a position corresponding to a camera of the mobile device, and fixedly connects the lighting assembly 2 on one side of the optical accessory 1.
The fundus camera optical component based on the mobile equipment can be matched with various mobile equipment with different models to provide various shooting fields of view: 5 degrees, 20 degrees, 40 degrees, 60 degrees and 120 degrees, achieves the purpose that common medical staff and even normal people can take photos without mydriasis and mydriasis eyeground only by a smart phone, and provides a powerful tool for wide-range eyeground screening and eyeground disease monitoring. The device mainly comprises an illumination system with at least one light source for independently illuminating eyes of a patient, and can emit observation lights with different colors of white, red, green, yellow and the like. A binocular vision system connected with the illumination system is adopted by a doctor, and eyes can be inspected under the irradiation of an observation light source. The shooting process is realized by completely utilizing the shooting function of the intelligent mobile phone, and the optical lens group device specially used for shooting the fundus is fixed on the mobile phone by the special fixing clamp which is also designed to form a fundus camera to take the picture of fundus tissues.
The coupling device 3 comprises an outer frame and connecting pieces, the outer frame is a hollow frame body, the outer frame is detachably connected with the mobile equipment through the connecting pieces, the optical accessory 1 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame, and the lighting assembly 2 is located at one end of the inner side of the outer frame and is connected with the inner wall of the outer frame. The hollow outer frame can meet the fixing requirements of other accessories, and combines all the accessories into a whole, and a light path can be formed between the glasses to be detected and the lenses of the mobile equipment, so that the detection is facilitated. The connecting piece not only can be a clip type connecting piece, but also can be a cover body clamping piece matched with the shell of the mobile device, and can also be other connecting structures which can meet the requirement of connecting the chain with the detachable frame at the lens of the mobile device.
The lighting assembly is capable of providing four color light sources, red, yellow, green, and white.
The lighting assembly 2 is an array-arranged LED lamp set, and the LED lamp set comprises at least one red LED lamp, at least one yellow LED lamp, at least one green LED lamp and at least one white LED lamp.
The illumination component can provide red, white, yellow and green light sources according to different detection requirements, so that detection results are clearer and more accurate, for example, for observing the macula lesions, detection by using red light is clearer and more clear than detection results by using common white light, and the detection and treatment of early lesions are facilitated.
The optical accessory 1 comprises a first spectroscope 11 and a second spectroscope 12, wherein an included angle between the first spectroscope and the second spectroscope is 30-60 degrees. The reflecting surface with partial reflection is the surface of the first beam splitter 11 facing the illumination assembly.
A polarizing filter 6 is also included, said polarizing filter 6 being located between the optical accessory 1 and the lighting assembly 2, said polarizing filter 6 being connected to the coupling means 3. The use of the polarized filter avoids the interference of stray light, so that the light rays irradiated into human eyes are softer, and the detection effect is better while the human eyes are not stimulated.
Also included is a spacer 7, the middle of the spacer 7 having a small hole, the spacer 7 being located between the optical accessory 1 and the lighting assembly 2, the spacer 7 being connected to the coupling means 3. And the aggregation of light is realized by utilizing the small-hole imaging principle, so that the detection result is clearer and more accurate.
Also included is a power supply 8, the power supply 8 being electrically connected with the lighting assembly, the power supply being connected with the coupling means.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A mobile device-based fundus imaging optical assembly, comprising: an optical accessory (1), said optical accessory (1) comprising a reflecting surface that is partially reflective;
the lighting assembly (2), the light that the said lighting assembly (2) sends out is towards the optical attachment (1) and perpendicular to shooting direction of the camera of the mobile device, the light that the lighting assembly (2) sends out shines on the reflecting surface, and form the reflected light beam pointing to eyes in the field of vision of the camera;
the optical accessory (1) is a beam splitter, the reflecting surface faces one surface of the illumination assembly (2), wherein the beam splitter comprises two triangular structures, and hypotenuses of the two triangular structures are parallel to each other;
the coupling device (3), the coupling device (3) is detachably connected with the mobile equipment, the coupling device (3) positions the optical accessory (1) at a position corresponding to a camera of the mobile equipment, and the lighting assembly (2) is fixedly connected to one side of the optical accessory (1);
a baffle (7), the middle part of the baffle (7) is provided with a small hole, and the baffle (7) is positioned between the optical accessory (1) and the lighting component (2).
2. The fundus camera optical assembly based on mobile equipment according to claim 1, wherein the coupling device (3) comprises an outer frame and a connecting piece, the outer frame is a hollow frame body, the outer frame is detachably connected with the mobile equipment through the connecting piece, the optical accessory (1) is positioned at one end of the inner part of the outer frame and is connected with the inner wall of the outer frame, and the illumination assembly (2) is positioned at the other end of the inner part of the outer frame and is connected with the inner wall of the outer frame.
3. The fundus camera optical assembly based on mobile equipment according to claim 1, wherein the illumination assembly (2) is an array-arranged LED lamp set comprising at least one red LED lamp, at least one yellow LED lamp, at least one green LED lamp and at least one white LED lamp.
4. The fundus camera optical assembly based on mobile equipment according to claim 1, wherein the illumination assembly (2) comprises a white LED lamp set and a filter plate (4), both the white LED lamp set and the filter plate (4) are connected with the coupling device (3), and the filter plate (4) is located between the white LED lamp set and the optical accessory (1).
5. The fundus camera optical assembly based on mobile equipment according to claim 4, wherein the coupling device (3) is connected with a plugboard groove (5), the optical filter (4) is detachably spliced in the plugboard groove (5), and the optical filter (4) is a red optical filter, a green optical filter or a yellow optical filter.
6. A mobile device based fundus camera optical assembly according to claim 1, wherein the optical attachment (1) comprises a first beam splitter (11) and a second beam splitter (12), the angle between the first beam splitter (11) and the second beam splitter (12) being 30-60 °.
7. A mobile device based fundus camera optical assembly according to claim 1, further comprising a polarizing filter (6), said polarizing filter (6) being located between the optical accessory (1) and the illumination assembly (2), said polarizing filter (6) being connected to the coupling means (3).
8. A mobile-device-based fundus camera optical assembly according to claim 1, wherein the spacer (7) is connected to the coupling means (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772729.4A CN107456207B (en) | 2017-08-31 | 2017-08-31 | Fundus camera optical assembly based on mobile equipment |
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| CN102499629A (en) * | 2011-11-04 | 2012-06-20 | 南京航空航天大学 | Mobile-phone-type direct ophthalmofundoscope |
| CN104434023A (en) * | 2014-12-04 | 2015-03-25 | 温州雷蒙光电科技有限公司 | Front ophthalmoscope used on mobile phone |
| CN104921699A (en) * | 2015-06-18 | 2015-09-23 | 苏州四海通仪器有限公司 | Ophthalmoscope based on mobile intelligent terminal |
| WO2016151288A1 (en) * | 2015-03-24 | 2016-09-29 | London School Of Hygiene & Tropical Medicine | Ophthalmoscope |
| CN107450255A (en) * | 2017-08-31 | 2017-12-08 | 索春如 | A kind of fundus imaging apparatus based on mobile device |
| CN207081931U (en) * | 2017-08-31 | 2018-03-09 | 索春如 | A kind of fundus imaging apparatus based on mobile device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITBS20130169A1 (en) * | 2013-11-15 | 2015-05-16 | Andrea Russo | OPTICAL ACCESSORY FOR A MOBILE DEVICE |
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| CN102499629A (en) * | 2011-11-04 | 2012-06-20 | 南京航空航天大学 | Mobile-phone-type direct ophthalmofundoscope |
| CN104434023A (en) * | 2014-12-04 | 2015-03-25 | 温州雷蒙光电科技有限公司 | Front ophthalmoscope used on mobile phone |
| WO2016151288A1 (en) * | 2015-03-24 | 2016-09-29 | London School Of Hygiene & Tropical Medicine | Ophthalmoscope |
| CN104921699A (en) * | 2015-06-18 | 2015-09-23 | 苏州四海通仪器有限公司 | Ophthalmoscope based on mobile intelligent terminal |
| CN107450255A (en) * | 2017-08-31 | 2017-12-08 | 索春如 | A kind of fundus imaging apparatus based on mobile device |
| CN207081931U (en) * | 2017-08-31 | 2018-03-09 | 索春如 | A kind of fundus imaging apparatus based on mobile device |
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