CN219500981U - Adapter for assisting mobile terminal in photographing fundus images - Google Patents

Abstract

The utility model provides an adapter for assisting a mobile terminal to shoot fundus images, which comprises the following components: a housing having a photographing opening, a right viewing opening, and a left viewing opening; the connecting structure is arranged on the shell and used for connecting the mobile terminal; an optical assembly disposed within the housing and having two operating states; and an adjusting member inserted in the housing and connected to the optical assembly. When the optical assembly is in the first working state, the mobile terminal can shoot fundus images of the right eye of the user through the shooting port, the optical assembly and the right view port of the adapter, and when the optical assembly is in the second working state, the mobile terminal can shoot fundus images of the left eye of the user through the shooting port, the optical assembly and the left view port of the adapter. The adapter not only can help the mobile terminal obtain the fundus images of the eyes of the user under the control of the detector, but also helps the mobile terminal obtain the fundus images of the eyes of the user more quickly under the control of the detector, thereby being beneficial to simplifying the operation difficulty of binocular shooting and improving the binocular shooting efficiency.

Description

Adapter for assisting mobile terminal in photographing fundus images

Technical Field

The utility model belongs to the field of fundus shooting equipment. More particularly, the present utility model relates to an adapter for assisting a mobile terminal in photographing fundus images.

Background

Along with the continuous improvement of photographing definition of the mobile terminal, an adapter for assisting the mobile terminal to photograph fundus images is born, belongs to equipment for screening fundus health conditions, and is light, portable, simple to operate, low in price and the like, or becomes main stream equipment for primary screening fundus health conditions instead of a professional fundus camera which is heavy, complex to operate and high in price.

Existing adapters are all products designed for one eye and include a housing having a photographing port and a vision port, an optical assembly disposed within the housing, and a connection structure disposed on the housing. When in use, the mobile terminal is required to be arranged at the shooting port of the shell through the connecting structure, then the adapter is supported to align the vision port with the right eye of the user, then the shooting function of the mobile terminal is started, and the fundus image of the right eye is acquired through the adapter. If it is desired to acquire a fundus image of the left eye of the user, it is necessary to transfer the adapter and the mobile terminal to the left eye and start the photographing function of the mobile terminal again to acquire a fundus image of the left eye.

However, the applicant has found after diligent research that although the existing adapter can help the mobile terminal to obtain fundus images of both eyes of the user under the control of the detector, the operation difficulty of binocular shooting is improved, and the binocular shooting efficiency is reduced.

Disclosure of Invention

In order to solve at least one or more of the technical problems mentioned above, the present utility model provides an adapter for assisting a mobile terminal to capture fundus images, which can help the mobile terminal to obtain fundus images of both eyes of a user under the manipulation of a inspector, and can help the mobile terminal to obtain fundus images of both eyes of the user more quickly under the manipulation of the inspector, thereby facilitating simplification of operation difficulty of binocular shooting and improvement of binocular shooting efficiency.

The utility model provides an adapter for assisting a mobile terminal to shoot fundus images, which comprises the following components: a housing having a photographing opening, a right viewing opening, and a left viewing opening; the connecting structure is arranged on the shell and is used for connecting the mobile terminal and enabling the shooting module of the mobile terminal and the light source to be aligned to the shooting port; an optical assembly disposed within the housing and having a first operating state and a second operating state; and an adjusting part, part of which is arranged in the shell and is connected with the optical assembly. Wherein the adjustment member is configured to switch the optical assembly between a first operating state and a second operating state when actuated. When the optical component is in the first working state, the mobile terminal can shoot fundus images of the right eye of the user through the shooting port, the optical component and the right view port. And when the optical component is in the second working state, the mobile terminal can shoot fundus images of the left eye of the user through the shooting port, the optical component and the left view port.

Further, the optical assembly includes an adjustable mirror disposed between the right viewing port, the left viewing port, and the photographing port and connected to the adjusting part. The adjustable mirror is capable of being driven by the adjustment member to rotate between a first position and a second position and to actuate a first operating state of the optical assembly when in the first position and to actuate a second operating state of the optical assembly when in the second position.

Further, the optical assembly further comprises a right lens, a left lens, a right reflecting mirror, a left reflecting mirror, a spectroscope and a light source reflecting mirror which are arranged among the right view port, the left view port and the shooting port. When the adjustable reflector is at the first station, illumination light of the light source can enter a right eye of a user after passing through the shooting port, the reflector, the spectroscope, the adjustable reflector, the right lens and the right view port and be converted into right eye reflected light by the right eye of the user, and the right eye reflected light can enter the shooting module after passing through the right view port, the right lens, the right reflector, the adjustable reflector, the spectroscope and the shooting port. When the optical assembly is in the second working state, illumination light of the light source can enter a left eye of a user after passing through the shooting port, the light source reflector, the spectroscope, the adjustable reflector, the left lens and the left view port and be converted into left eye reflected light by the left eye of the user, and the left eye reflected light can enter the shooting module after passing through the left view port, the left lens, the left reflector, the adjustable reflector, the spectroscope and the shooting port.

Further, the adjusting part comprises a driving rotating shaft which can rotatably penetrate into the shell and is connected with the adjustable reflecting mirror, and a knob which is arranged outside the shell and is connected with the driving rotating shaft.

Further, the adapter also includes a first stop member and a second stop member disposed in the housing at intervals, the first stop member being configured to prevent the adjustable mirror from exceeding the first station when the adjustable mirror is turned from the second station to the first station, and the second stop member being configured to prevent the adjustable mirror from exceeding the second station when the adjustable mirror is turned from the first station to the second station.

Further, the connection structure includes: a base provided on the housing so as to avoid the photographing opening; the first clamping arm is provided with a clamping part, is inserted into the base and can be adjusted in extension length; and the second clamping arm is provided with a clamping part, is inserted into the base and can perform elastic retraction movement. The first clamping arm and the second clamping arm can clamp the mobile terminal through the clamping parts and fix the mobile terminal on the shell.

Further, the adapter further includes a light leakage preventing pad provided on a side of the base away from the housing, the light leakage preventing pad having a through hole exposing the photographing opening, which is capable of contacting the mobile terminal when the mobile terminal is clamped.

Further, the light leakage prevention pad comprises a gasket body made of rubber or silica gel materials and an aluminum framework pre-buried in the gasket body.

Further, the adapter further comprises an eye pad provided on the housing and capable of mating contact with both eyes of the user, the eye pad having a right hole and a left hole exposing the right view port and the left view port, respectively.

Further, the eye pad comprises a pad body made of rubber or silica gel material and an aluminum framework pre-buried in the pad body.

Further, the adapter also includes a headgear assembly provided on the housing and capable of retaining the adapter in front of the eyes of a user.

Further, the mobile terminal is a mobile phone, a watch or a digital camera.

In the adapter for photographing fundus images of the auxiliary mobile terminal, the adapter is provided with the right view port capable of being aligned with the right eye of the user and the left view port capable of being aligned with the right eye of the user, and is also provided with the adjusting component capable of adjusting the working state of the optical component, when the fundus images of the right eye of the user are required to be obtained, the optical component can be adjusted to the first working state through the adjusting component, the mobile terminal can photograph the fundus images of the right eye of the user through the photographing port of the adapter, the optical component and the right view port, and when the fundus images of the left eye of the user are required to be obtained, the optical component can be adjusted to the second working state through the adjusting component, and the mobile terminal can photograph the fundus images of the left eye of the user through the photographing port, the optical component and the left view port of the adapter. Compared with the prior art, the adapter for assisting the mobile terminal to shoot the fundus images does not need to implement relatively complex and time-consuming actions such as moving the adapter and the mobile terminal, but instead implements relatively simple and time-saving actions such as controlling the adjusting component, so that the adapter can help the mobile terminal to acquire the fundus images of the eyes of the user more quickly under the control of a detector, and is beneficial to simplifying the operation of binocular shooting and improving the binocular shooting efficiency.

In addition, since the cis-photo induction adjustment of the eyes is synchronous, that is, one eye receives strong light, the pupils of both eyes are contracted, and the contracted pupils can affect the quality of the fundus image, for example, when the existing adapter helps the mobile terminal to shoot the right eye of the user, whether the left eye of the user is closed or not directly affects the quality of the fundus image of the right eye obtained by the mobile terminal. For a detected person with high coordination degree, the existing adapter for monocular shooting can help the mobile terminal to acquire high-quality fundus images under the control of the detected person, but for a detected person with low coordination degree, particularly a child, the existing adapter is difficult to help the mobile terminal to acquire high-quality fundus images under the control of the detected person. The adapter for assisting the mobile terminal to shoot the fundus images belongs to an innovative product designed for binocular shooting, and can shield eyes in an un-shot state by using the eye gasket and the shell when the adapter is used, so that the eyes in the shot state are prevented from synchronously shrinking due to strong light received by the eyes in the un-shot state, and even if the coordination degree of a detected person is low, the adapter can help the mobile terminal to easily acquire high-quality fundus images under the control of the detected person.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:

fig. 1 is a schematic perspective view of an adapter for assisting a mobile terminal to capture fundus images according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the adapter of FIG. 1 in use;

FIG. 3 is a cross-sectional view of the connection structure of the adapter of FIG. 1;

fig. 4 shows an adjustment member, an adjustable mirror and a part of the housing of the adapter of fig. 1.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person skilled in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

As shown in fig. 1 and 2, an embodiment of the present utility model provides an adapter for assisting a mobile terminal, which may be a cellular phone, a wristwatch, or a digital camera having a photographing function, to photograph fundus images. The adapter includes a housing 1 having a photographing port 1c, a right viewing port 1a, and a left viewing port 1 b. The adapter further comprises a connection structure 2 provided on the housing 1. The connection structure 2 is used for connecting a mobile terminal such as a mobile phone, a watch or a digital camera, and aligning a photographing module 301 and a light source 302 (also called a flash) thereof to the photographing port 1c. The adapter further comprises an optical assembly (e.g. comprising a part 31-37) arranged within the housing 1, the optical assembly having a first operating state and a second operating state.

The adapter further comprises an adjusting member 5 partly inserted in the housing 1 and connected to the optical assembly. The adjusting member 5 is configured to switch the optical assembly between the first operating state and the second operating state when manipulated. When the fundus image of the right eye 201 of the user needs to be acquired, the optical component can be adjusted to the first working state through the adjusting component 5, the mobile terminal can shoot the fundus image of the right eye 201 of the user through the shooting port 1c, the optical component and the right view port 1a of the adapter, when the fundus image of the left eye 202 of the user needs to be acquired, the optical component can be adjusted to the second working state through the adjusting component 5, and the mobile terminal can shoot the fundus image of the left eye 202 of the user through the shooting port 1c, the optical component and the left view port 1b of the adapter. Compared with the prior art, the adapter for assisting the mobile terminal to shoot fundus images does not need to implement relatively complex and time-consuming actions such as moving the adapter and the mobile terminal, but instead implements relatively simple and time-saving actions such as manipulating the adjusting part 5, so that the adapter can help the mobile terminal to acquire fundus images of eyes of a user more quickly under the manipulation of a detector, and is beneficial to simplifying the operation of binocular shooting and improving the binocular shooting efficiency.

The optical assembly includes a right lens 31, a left lens 37, a right mirror 32, a left mirror 36, an adjustable mirror 33, a beam splitter 34, and a light source mirror 35 arranged between the right view port 1a, the left view port 1b, and the photographing port 1c. Wherein the right lens 31 may be disposed adjacent to and aligned with the right viewing port 1a and the left lens 37 may be disposed adjacent to and aligned with the left viewing port 1 b. The adjustable mirror 33 is provided at an intermediate position between the right viewing port 1a, the left viewing port 1b and the photographing port 1c and is connected to the adjusting member 5, and is driven by the adjusting member 5 to rotate between the first station and the second station. The right reflecting mirror 32 is obliquely provided between the right lens 31 and the photographing opening 1c and closer to the photographing opening 1c, and can achieve transmission of light between the adjustable reflecting mirror 33 and the right lens 31 when the adjustable reflecting mirror 33 is in the first position. When the adjustable mirror 33 is in the first position, it is substantially parallel to the right mirror 32, see in detail fig. 2. The left reflecting mirror 36 is obliquely provided between the left lens 37 and the photographing opening 1c and closer to the photographing opening 1c, and can achieve transmission of light between the adjustable mirror 33 and the left lens 37 when the adjustable mirror 33 is in the second position. When the adjustable mirror 33 is in the second position, it is substantially parallel to the left mirror 36. The beam splitter 34 is a semi-reflective and semi-transmissive structure, and is disposed between the adjustable mirror 33 and the photographing opening 1c, and is approximately parallel to the right mirror 32, and can reflect a portion of light from the light source mirror 35 to the adjustable mirror 33, and can transmit a portion of light from the adjustable mirror 33 to the photographing opening 1c and be received by the photographing module 301 of the mobile terminal. A light source mirror 35 is provided in the vicinity of the adjustable mirror 33, in particular, in the left-hand region of the adjustable mirror 33, which is approximately parallel to the right mirror 32 and is capable of reflecting light from the mobile terminal to the beam splitter 34.

As shown in fig. 2 and 3, the connection structure 2 includes a base 21 provided on the housing 1 so as to avoid the photographing opening 1c, a first clamp arm 22 having a clamp portion 222, and a second clamp arm 23 having a clamp portion 232. The first clamping arm 22 comprises a rod inserting portion 221 capable of being inserted into the base 21 and a clamping portion 222 connected with the end portion, away from the base 21, of the rod inserting portion 221, and a screw 24 capable of being screwed into the base 21 and abutting against the rod inserting portion 221 is arranged on the base 21, so that the extending length of the first clamping arm 22 relative to the base 21 can be effectively adjusted through tightening the screw 24. Preferably, the first clamp arm 22 may further include a slide bar portion 223 capable of being inserted into the base 21 and connected to the clamping portion 222, the slide bar portion 223 serving to improve the overall strength of the first clamp arm 22 and the movement stability when performing the telescopic process. The second clamp arm 23 includes a rod insertion portion 231 having a flange 231a and capable of being inserted into the base 21, and a clamp portion 232 connected to an end portion of the rod insertion portion 231 remote from the base 21, and a return spring 25 engaged with the flange 231a is provided in the base 21. The pulled-out second clip arm 23 can be retracted when the pulling force is lost by the return spring 25. Preferably, the second clamp arm 23 may further include a slide bar portion 233 capable of being inserted into the base 21 and connected to the clamping portion 232, the slide bar portion 233 serving to improve the overall strength of the second clamp arm 23 and the movement stability when performing the telescopic process.

When it is desired to use the connection structure 2, the second clamp arm 23 is pulled out from the base 21, the mobile terminal is placed between the first clamp arm 22 and the second clamp arm 23, and then the second clamp arm 23 is released to perform an elastic retraction movement under the action of the return spring 25 until abutting against the mobile terminal, at which time the mobile terminal can be clamped between the first clamp arm 22 and the second clamp arm 23 by the respective clamping portions 222,232 and fixed to the housing 1. If the camera module 301 and the light source 302 of the mobile terminal are not aligned with the photographing opening 1c at this time, the screw 24 needs to be unscrewed to adjust the extension length of the first clamping arm 22 relative to the base 21 until the camera module 301 and the light source 302 of the mobile terminal are aligned with the photographing opening 1c, and then the screw 24 is unscrewed, at this time, the first clamping arm 22 and the second clamping arm 23 can clamp and fix the mobile terminal on the housing 1 through the respective clamping parts 222 and 232, and meanwhile, the camera module 301 and the light source 302 of the mobile terminal are aligned with the photographing opening 1c. In other embodiments, the connection structure 2 may be other structures, such as a connection structure used on a selfie stick or a mobile phone holder disclosed in chinese patent application CN111698360 a.

The adjusting part 5 includes a driving rotation shaft 52 rotatably penetrating into the housing 1 and connected to the adjustable mirror 33, and a knob 51 provided outside the housing 1 and connected to the driving rotation shaft 52. Thus, when the knob 51 is reciprocally rotated, the knob 51 drives the adjustable mirror 33 to rotate in the housing 1 through the driving shaft 52, so as to drive the adjustable mirror to move between the first station and the second station. The adjusting part 5 has the advantages of simple structure and easy operation. Preferably, a driven rotating shaft 53 is provided on an end of the adjustable mirror 33 remote from the driving rotating shaft 52, and the end of the driven rotating shaft 53 remote from the adjustable mirror 33 is rotatably inserted into the housing 1 and serves to improve the stability of movement of the adjustable mirror 33 during rotation and also helps to improve smoothness when the knob 51 is operated. It should be emphasized that the adjusting member 5 is not limited to the structure described in the present embodiment, but may be other structures capable of rotating the adjustable mirror 33, such as a slider provided outside the housing 1, and a rack magnetically connected to the slider is provided inside the housing 1 and is engaged with a gear provided on the driving shaft 52, so that when the slider is pushed, the rack is dragged by the slider and drives the gear to rotate, and thus the gear can drive the adjustable mirror 33 to rotate in the housing 1 through the driving shaft 52 to switch between the first station and the second station.

In this embodiment, the adapter may further comprise an eye pad 6 provided on the housing 1 and capable of mating contact with both eyes of a user, see in detail fig. 1. The eye liner 6 has a right hole and a left hole exposing the right viewing port 1a and the left viewing port 1 b. Since the cis-photo sensing adjustment of the eyes is synchronous, i.e. one eye receives strong light, the pupils of both eyes are contracted, and the contracted pupils can affect the quality of the fundus image, for example, when the existing adapter helps the mobile terminal to shoot the right eye 201 of the user, whether the left eye 202 of the user is closed or not directly affects the quality of the fundus image of the right eye 201 obtained by the mobile terminal. For a detected person with high coordination degree, the existing adapter for monocular shooting can help the mobile terminal to acquire high-quality fundus images under the control of the detected person, but for a detected person with low coordination degree, particularly a child, the existing adapter is difficult to help the mobile terminal to acquire high-quality fundus images under the control of the detected person. The adapter for assisting the mobile terminal to shoot the fundus images belongs to an innovative product designed for binocular shooting, and can shield eyes in an un-shot state by using the eye gasket 6 when the adapter is used, so that the eyes in the shot state are prevented from synchronously shrinking due to strong light received by the eyes in the un-shot state, and even if the coordination degree of a detected person is low, the adapter can help the mobile terminal to easily acquire high-quality fundus images under the control of the detected person.

The eye pad 6 may be a non-skeleton pad made of rubber or silica gel material, or a skeleton pad made of rubber or silica gel material, but the service life of the eye pad 6 is improved, and the eye pad 6 is recommended to be selected as the latter, namely, the pad body made of rubber or silica gel material and the aluminum skeleton embedded in the pad body are included.

In this embodiment, the adapter may further include a first stopper member and a second stopper member (not shown) provided at intervals in the housing 1. The first limiting component and the second limiting component can be of a protruding structure or a screw or the like. The first stop member is arranged to prevent the adjustable mirror 33 from exceeding the first position when the adjustable mirror 33 is turned from the second position to the first position. This way, the user can conveniently and quickly and accurately rotate the adjustable mirror 33 to the first position. Similarly, the second stop member is configured to prevent the adjustable mirror 33 from exceeding the second position when the adjustable mirror 33 is turned from the first position to the second position. This way, the user can conveniently and quickly and accurately rotate the adjustable mirror 33 to the second position.

In the present embodiment, the adapter may further include a light leakage preventing pad 7 provided on a side of the base 21 remote from the housing 1 and having a through hole exposing the photographing port 1c, see fig. 1. The light leakage preventing pad 7 can contact the mobile terminal when the mobile terminal is clamped and prevent a light leakage phenomenon from occurring between the mobile terminal and the case 1. The light-proof pad 7 may be a gasket made of rubber or silica gel and having no frame, or a gasket made of rubber or silica gel and having a frame, but it is suggested that the latter is preferable, that is, the light-proof pad 7 includes a gasket body made of rubber or silica gel and an aluminum frame embedded in the gasket body. With the help of the aluminum skeleton, the service life of the light leakage prevention pad 7 is longer.

In this embodiment, the adapter may further include a headgear assembly 4 provided on the housing 1, see fig. 1. The headgear assembly 4 can hold the adapter in front of the eyes of the user so that the user or inspector does not have to hold the adapter and mobile terminal all the time while in use.

The operation and principle of the adapter will be described. The mobile terminal is connected to the connection structure 2, and its photographing module 301 and light source 302 are aligned with the photographing port 1c. The adapter with the mobile terminal is worn on the user's head and held in front of the user's eyes using the headband assembly 4, with the right and left viewing ports 1a and 1b of the housing 1 aligned with the user's right and left eyes 201 and 202, respectively. At this time, if it is desired to obtain a fundus image of the user's right eye 201, the optical assembly is forced to be in the first operating state by adjusting the adjustment member 5 to rotate the adjustable mirror 33 to the first station. Then, the photographing function of the mobile terminal is triggered, and the illumination light 303 emitted by the mobile terminal light source 302 can enter the user's right eye 201 through the photographing port 1c, the light source reflector 35, the spectroscope 34, the adjustable reflector 33, the right reflector 32, the right lens 31 and the right viewing port 1a and be converted into the right eye reflected light 304 by the user's right eye, and the right eye reflected light 304 can enter the photographing module 301 of the mobile terminal through the right viewing port 1a, the right lens 31, the right reflector 32, the adjustable reflector 33, the spectroscope 34 and the photographing port 1c, so that the fundus image of the user's right eye 201 is obtained. If it is desired to obtain a fundus image of the user's left eye 202, the adjustment member 5 is adjusted to bring the adjustable mirror 33 to the second position, forcing the optical assembly to the second operative state. Then, the photographing function of the mobile terminal is triggered, and the illumination light emitted by the mobile terminal light source 302 can enter the left eye 202 of the user after passing through the photographing port 1c, the light source reflector 35, the spectroscope 34, the adjustable reflector 33, the left reflector 36, the left lens 37 and the left viewing port 1b, and be converted into left eye reflected light by the left eye 202 of the user, and the left eye reflected light can enter the photographing module 301 of the mobile terminal after passing through the left viewing port 1b, the left lens 37, the left reflector 36, the adjustable reflector 33, the spectroscope 34 and the photographing port 1c, so that it obtains a fundus image of the right eye 201 of the user.

In summary, the adapter not only can help the mobile terminal obtain fundus images of both eyes of a user under the control of a detector, but also can help the mobile terminal obtain fundus images of both eyes of the user more quickly under the control of the detector, thereby being beneficial to simplifying the operation difficulty of binocular shooting and improving the binocular shooting efficiency.

In the above description of the present utility model, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless otherwise specifically indicated and defined. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise defined explicitly, those skilled in the art will understand the specific meaning of the terms in the present utility model according to the specific circumstances.

It will be further understood by those skilled in the art from the foregoing description of the present utility model that terms such as "right," "left," and the like, which indicate an orientation or a positional relationship, are based on the orientation or positional relationship shown in the drawings of the present utility model, and are for the purpose of facilitating the explanation of aspects of the present utility model and simplifying the description, and do not explicitly or implicitly refer to devices or elements that must have the particular orientation, be constructed and operated in the particular orientation, and therefore the above orientation or positional relationship terms should not be interpreted or construed as limiting aspects of the present utility model.

In addition, the terms "first" or "second" and the like used in the present utility model are used to refer to numbers or ordinal terms only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless explicitly defined otherwise.

While various embodiments of the present utility model have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the utility model. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. The appended claims are intended to define the scope of the utility model and are therefore to cover all equivalents or alternatives falling within the scope of these claims.

Claims (12)

1. An adapter for assisting a mobile terminal in photographing fundus images, comprising:

a housing having a photographing opening, a right viewing opening, and a left viewing opening;

the connecting structure is arranged on the shell and is used for connecting the mobile terminal and enabling the shooting module of the mobile terminal and the light source to be aligned to the shooting port;

an optical assembly disposed within the housing and having a first operating state and a second operating state;

an adjusting member partially disposed in the housing and connected to the optical assembly;

the adjusting component is configured to enable the optical assembly to be switched between a first working state and a second working state when the optical assembly is controlled, the mobile terminal can shoot fundus images of a right eye of a user through the shooting port, the optical assembly and the right view port when the optical assembly is in the first working state, and the mobile terminal can shoot fundus images of a left eye of the user through the shooting port, the optical assembly and the left view port when the optical assembly is in the second working state.

2. The adapter of claim 1 wherein the optical assembly includes an adjustable mirror disposed between the right viewing port, left viewing port and photographing port and coupled to the adjustment member, the adjustable mirror being drivable by the adjustment member to rotate between a first position and a second position and to actuate a first operating state of the optical assembly when in the first position and to actuate a second operating state of the optical assembly when in the second position.

3. The adapter according to claim 2, wherein:

the optical assembly further comprises a right lens, a left lens, a right reflecting mirror, a left reflecting mirror, a spectroscope and a light source reflecting mirror which are arranged among the right view port, the left view port and the shooting port;

when the adjustable reflecting mirror is in a first station, illumination light of the light source can enter a right eye of a user after passing through the shooting port, the light source reflecting mirror, the spectroscope, the adjustable reflecting mirror, the right lens and the right view port and be converted into right eye reflected light by the right eye of the user, and the right eye reflected light can enter the shooting module after passing through the right view port, the right lens, the right reflecting mirror, the adjustable reflecting mirror, the spectroscope and the shooting port;

when the optical assembly is in the second working state, illumination light of the light source can enter a left eye of a user after passing through the shooting port, the light source reflector, the spectroscope, the adjustable reflector, the left lens and the left view port and be converted into left eye reflected light by the left eye of the user, and the left eye reflected light can enter the shooting module after passing through the left view port, the left lens, the left reflector, the adjustable reflector, the spectroscope and the shooting port.

4. An adapter according to claim 2 or 3, wherein the adjustment member comprises an active spindle rotatably penetrating into the housing and connected to the adjustable mirror, and a knob provided outside the housing and connected to the active spindle.

5. The adapter of claim 4 further comprising a first stop member and a second stop member disposed in the housing at a spacing, the first stop member for preventing the adjustable mirror from exceeding the first position when the adjustable mirror is turned from the second position to the first position and the second stop member for preventing the adjustable mirror from exceeding the second position when the adjustable mirror is turned from the first position to the second position.

6. An adapter according to any one of claims 1 to 3, wherein the connection structure comprises:

a base provided on the housing so as to avoid the photographing opening;

the first clamping arm is provided with a clamping part, is inserted into the base and can be adjusted in extension length;

a second clamping arm with a clamping part, which is inserted in the base and can perform elastic retraction movement;

the first clamping arm and the second clamping arm can clamp the mobile terminal through the clamping parts and fix the mobile terminal on the shell.

7. The adapter of claim 6, further comprising a light leakage prevention pad provided on a side of the base remote from the housing, the light leakage prevention pad having a through hole exposing the photographing port, which is capable of contacting the mobile terminal when the mobile terminal is clamped.

8. The adapter of claim 7 wherein the light leakage prevention gasket comprises a gasket body made of rubber or silicone material and an aluminum skeleton embedded in the gasket body.

9. The adapter of any one of claims 1 to 3 further comprising an eye pad provided on the housing and capable of mating contact with both eyes of the user, the eye pad having a right aperture and a left aperture exposing the right viewing port and the left viewing port, respectively.

10. The adapter of claim 9 wherein the eye pad comprises a pad body made of rubber or silicone material and an aluminum skeleton embedded within the pad body.

11. The adapter of any one of claims 1 to 3 further comprising a headgear assembly provided on the housing and adapted to maintain the adapter in front of the eyes of a user.

12. An adapter according to any of claims 1 to 3, characterized in that the mobile terminal is a cell phone, a watch or a digital camera.