Eye imaging adjustment device and imaging system

Abstract

The application discloses an eye imaging adjusting device, relates to the technical field of eye imaging, and mainly comprises an adjusting assembly and an auxiliary imaging device. The adjusting assembly comprises a guide rail, a target fixation object assembly and a convex lens. The target fixation object assembly and / or the convex lens is / are slidably installed on the guide rail. The distance between the target fixation object assembly and the convex lens can be adjusted by sliding the target fixation object assembly and / or the convex lens. The auxiliary imaging device is located on the side of the convex lens which is opposite to the target fixation object assembly. The auxiliary imaging device can reflect the visible light of the target fixation object assembly and allow the infrared rays of an imaging device to pass through. The application further discloses an eye imaging system comprising the above eye imaging device. The application can adjust and control while imaging one eye, so that the change of the eye structure during adjustment can be better explored by using the imaging device.

Description

Technical Field

[0001] This invention relates to the field of fundus imaging technology, and in particular to an eye imaging adjustment device and imaging system. Background Technology

[0002] Currently, fundus imaging technology is booming and has become a research hotspot in the diagnosis and management of contemporary fundus diseases. With the accelerating aging of the global population, the incidence of eye diseases is increasing year by year. The eye's accommodative ability gradually declines with age, thus the structural changes in the eye caused by accommodation have attracted widespread attention and research.

[0003] In existing studies, to simulate the accommodative and non-accommodative states of the eye, pilocarpine nitrate eye drops and atropine sulfate ophthalmic gel were instilled into the eye respectively, and then the eye was imaged. This method cannot control the specific accommodative amplitude. Other studies have stimulated one eye to achieve accommodation and imaged the other eye. This method cannot eliminate the mixing effect of binocular convergence and cannot ensure the accuracy of the results.

[0004] Therefore, there is an urgent need to provide a fundus imaging system that can perform adjustment and control while imaging an eye, so as to better utilize the imaging device to explore changes in the eye structure during adjustment. Summary of the Invention

[0005] The purpose of this invention is to provide an eye imaging adjustment device and imaging system to solve the problems existing in the prior art. It can adjust and control the image of one eye at the same time, so as to better utilize the imaging device to explore changes in the eye structure during adjustment.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] This invention provides an eye imaging adjustment device, comprising:

[0008] An adjustment assembly includes a guide rail, a target object assembly, and a convex lens. The target object assembly and / or the convex lens are slidably mounted on the guide rail. The distance between the target object assembly and the convex lens can be adjusted by sliding the target object assembly and / or the convex lens.

[0009] An auxiliary imaging device is located on the side of the convex lens facing away from the target viewing object component. The auxiliary imaging device is capable of reflecting visible light from the target viewing object component and transmitting infrared light from the imaging device.

[0010] Preferably, the eye imaging adjustment device further includes a support and fixing component, and the guide rail can be mounted on a desktop via the support and fixing component.

[0011] Preferably, the support and fixing assembly includes a fixed base, a support column, and a cantilever rod. The support column can be installed on a tabletop via the fixed base. Multiple cantilever rods are provided, and all the cantilever rods are connected end to end in sequence. The foremost cantilever rod is rotatably installed on the support column and its height is adjustable. The guide rail is installed on the last cantilever rod.

[0012] Preferably, a moving platform is also installed on the last cantilever, and the guide rail is installed on the moving platform. The moving platform can adjust the guide rail in the x-axis, y-axis and z-axis directions.

[0013] Preferably, the target object component is a screen, which is capable of displaying the target object, and the screen is positioned facing the convex lens.

[0014] Preferably, the screen is slidably mounted on the guide rail via a screen bracket, and the screen bracket is extendable and retractable to adjust the height of the screen; the convex lens is mounted on the guide rail via a convex lens bracket, and the convex lens bracket is extendable and retractable to adjust the height of the convex lens; wherein, the guide rail is provided with dimension markings.

[0015] Preferably, the auxiliary imaging device is a cold mirror, which is placed at a 45-degree angle relative to the line connecting the center of the cold mirror and the convex lens, and the angle between the cold mirror and the horizontal plane is 45 degrees.

[0016] Preferably, the cold mirror is mounted on the guide rail via a cold mirror bracket, and the cold mirror bracket can extend and retract vertically to adjust the height of the cold mirror.

[0017] Preferably, the distance between the cold mirror and the convex lens is less than the focal length of the convex lens. When imaging the eye, the eye is located at the focal point of the convex lens, and the cold mirror is located between the convex lens and the eye.

[0018] The present invention also provides an eye imaging system, including an imaging device and the above-described eye imaging adjustment device.

[0019] The present invention achieves the following beneficial technical effects compared to the prior art:

[0020] In this invention, the target viewing object component and / or convex lens are slidably mounted on a guide rail. By sliding the target viewing object component and / or convex lens, the distance between the target viewing object component and the convex lens can be adjusted to achieve the corresponding adjustment. The auxiliary imaging device can realize the reflection of visible light from the target viewing object component and the transmission of infrared light from the imaging device to achieve imaging, thereby realizing the simultaneous adjustment and control of imaging the same eye. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the eye imaging adjustment device in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the fixed support frame assembly in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the adjustment component in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram illustrating the imaging principle of the cold mirror in an embodiment of the present invention;

[0026] The components include a fixed base 101, a support column 102, a cantilever rod 103, a convex lens 201, a convex lens bracket 202, a screen 203, a screen bracket 204, a guide rail 205, a moving platform 206, a cold mirror 301, and a cold mirror bracket 302. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The purpose of this invention is to provide an eye imaging adjustment device and imaging system to solve the problems existing in the prior art. It can adjust and control the image of one eye at the same time, so as to better utilize the imaging device to explore changes in the eye structure during adjustment.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figures 1-4As shown, this embodiment provides an eye imaging adjustment device, mainly including an adjustment component and an auxiliary imaging device. The adjustment component includes a guide rail 205, a target object component, and a convex lens 201. The target object component and / or the convex lens 201 are slidably mounted on the guide rail 205. By sliding the target object component and / or the convex lens 201, the distance between the target object component and the convex lens 201 can be adjusted. The target object component and the convex lens 201 are arranged parallel to each other, and the visible light of the target object component can pass through the convex lens 201. The auxiliary imaging device is located on the side of the convex lens 201 that is away from the target object component. The auxiliary imaging device can realize the reflection of the visible light of the target object component and the transmission of infrared light from the imaging device.

[0032] In this embodiment, the distance between the target viewing object component and the convex lens 201 can be adjusted by sliding the target viewing object component and / or the convex lens 201, thereby achieving the corresponding adjustment; the auxiliary imaging device can realize the reflection of visible light from the target viewing object component and the transmission of infrared light from the imaging device to achieve imaging, thereby realizing the simultaneous adjustment and control of imaging the same eye.

[0033] In this embodiment, the eye imaging adjustment device further includes a support and fixing assembly. The guide rail 205 can be mounted on a desktop via the support and fixing assembly. Specifically, the support and fixing assembly mainly includes a fixed base 101, a support column 102, and a cantilever rod 103. The support column 102 can be mounted on the desktop via the fixed base 101. Multiple cantilever rods 103 are provided, and all the cantilever rods 103 are connected end to end in sequence to achieve rotation at any angle. The foremost cantilever rod 103 is fitted onto the support column 102 and can rotate around the support column 102. Its height is adjustable and can be fixed with bolts after being adjusted to a suitable height. The guide rail 205 is installed on the last cantilever rod 103.

[0034] In this embodiment, before imaging, the fixed base 101 can be fixed in a suitable position according to the position of the imaging device and the position of the subject sitting; according to the height of the subject and the height of the sitting position, the position of the cantilever rod 103 on the support column 102 and the angle of the cantilever rod 103 are adjusted to match.

[0035] In this embodiment, the guide rail 205 is marked with dimensions, allowing control of the adjustment range by changing the distance between the convex lens 201 and the target viewing object assembly on the guide rail 205. A moving platform 206 is also mounted on a cantilever rod 103 at the rear end, with the guide rail 205 mounted on it. The moving platform 206 is a commonly used three-axis moving platform in the art, capable of micro-adjusting the guide rail 205 along the x, y, and z axes. Before imaging, according to the adjustment value set in the experiment, the corresponding adjustment range is achieved by moving the distance between the convex lens 201 and the target viewing object assembly on the guide rail 205. Simultaneously, fine adjustments in the x, y, and z axes can be made via the moving platform 206. This part can both compensate for refractive errors and achieve adjustment control.

[0036] In this embodiment, the target object component is a screen 203, which can display the target object and is positioned facing the convex lens 201. The screen 203 is slidably mounted on the guide rail 205 via a screen bracket 204, and the screen bracket 204 can extend and retract vertically to adjust the height of the screen 203. The convex lens 201 is mounted on the guide rail 205 via a convex lens bracket 202, and the convex lens bracket 202 can extend and retract vertically to adjust the height of the convex lens 201, ensuring that the center of the convex lens 201 and the center of the screen 203 are at the same height.

[0037] In this embodiment, the auxiliary imaging device is a cold mirror 301. The cold mirror 301 is placed at a 45-degree angle relative to the line connecting the centers of the cold mirror 301 and the convex lens 201, and the angle between the cold mirror 301 and the horizontal plane is 45 degrees. This allows for the reflection of visible light from the target object and the transmission of infrared light from the imaging device, thus assisting in imaging. Furthermore, the cold mirror 301 is mounted on the guide rail 205 via a cold mirror bracket 302, and the cold mirror bracket 302 can extend and retract vertically to adjust the height of the cold mirror 301, ensuring that the center of the cold mirror 301 and the center of the convex lens 201 are at the same height.

[0038] In this embodiment, the distance between the cold mirror 301 and the convex lens 201 is less than the focal length of the convex lens 201. When imaging the eye, the eye is located at the focal point of the convex lens 201, ensuring the consistency of imaging brightness and image size, and eliminating experimental errors caused by changes in image size at different distances. The cold mirror 301 is located between the convex lens 201 and the eye.

[0039] The present invention also provides an eye imaging system, including an imaging device and the above-mentioned eye imaging adjustment device; wherein, the imaging device adopts existing ophthalmic medical imaging equipment, such as OCT (Optical Coherence Tomography), Lenstar (Biometry Instrument), etc., which is located below the cold mirror 301, and the infrared light emitted by the imaging device can be transmitted vertically upward to the cold mirror 301.

[0040] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An eye imaging adjustment device, characterized in that: include: An adjustment assembly includes a guide rail, a target object assembly, and a convex lens. The target object assembly and / or the convex lens are slidably mounted on the guide rail. The distance between the target object assembly and the convex lens can be adjusted by sliding the target object assembly and / or the convex lens. An auxiliary imaging device is located on the side of the convex lens facing away from the target viewing object component. The auxiliary imaging device can reflect visible light from the target viewing object component and transmit infrared light from the imaging device. The auxiliary imaging device is a cold mirror, and the distance between the cold mirror and the convex lens is less than the focal length of the convex lens. The cold mirror is located between the convex lens and the eye. When imaging the eye, the eye is located at the focal point of the convex lens, ensuring the consistency of image brightness and image size, and eliminating experimental errors caused by changes in image size at different distances. The eye imaging adjustment device also includes a support and fixing assembly. The guide rail can be mounted on a table via the support and fixing assembly. The support and fixing assembly includes a fixed base, a support column, and a cantilever. The support column can be mounted on the table via the fixed base. Multiple cantilever rods are provided, and all the cantilever rods are connected end-to-end in sequence. The foremost cantilever rod is rotatably mounted on the support column and its height is adjustable. The guide rail is mounted on the last cantilever rod. A moving platform is also mounted on the last cantilever rod, and the guide rail is mounted on the moving platform. The moving platform can adjust the guide rail in the x, y, and z axes. Before imaging, according to the adjustment size set in the experiment, the corresponding adjustment range is achieved by moving the distance between the convex lens and the target object viewing component on the guide rail. At the same time, fine adjustments in the x, y, and z axes are made through the moving platform, which can both compensate for refractive errors and achieve adjustment control.

2. The eye imaging adjustment device according to claim 1, characterized in that: The target object component is a screen, which can display the target object, and the screen is positioned facing the convex lens.

3. The eye imaging adjustment device according to claim 2, characterized in that: The screen is slidably mounted on the guide rail via a screen bracket, and the screen bracket can extend and retract vertically to adjust the height of the screen; the convex lens is mounted on the guide rail via a convex lens bracket, and the convex lens bracket can extend and retract vertically to adjust the height of the convex lens; wherein, the guide rail is provided with dimension markings.

4. The eye imaging adjustment device according to claim 1, characterized in that: The cold mirror is placed at a 45-degree angle relative to the line connecting the center of the cold mirror and the convex lens, and the angle between the cold mirror and the horizontal plane is 45 degrees.

5. The eye imaging adjustment device according to claim 4, characterized in that: The cold mirror is mounted on the guide rail via a cold mirror bracket, and the cold mirror bracket can extend and retract vertically to adjust the height of the cold mirror.

6. An eye imaging system, characterized in that: It includes imaging devices and eye imaging adjustment devices as described in any one of claims 1-5.

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