CN116439653A - Device for eye detection - Google Patents

Abstract

The present disclosure relates to an apparatus for eye detection. The device comprises: a fundus camera including at least a front barrel assembly and a rear barrel assembly, and configured to perform a photographing operation on a fundus of an eye, wherein the front barrel assembly includes at least an objective lens; an optometry instrument which shares the ocular lens with the fundus camera and is configured to perform an optometry operation on an eye; and a mirror assembly disposed between the front barrel assembly and the rear barrel assembly and configured to switch an internal optical path of the apparatus to place the apparatus in a fundus camera mode in which photographing operation is performed or an optometry mode in which the optometry operation is performed, respectively. By utilizing the scheme of the present disclosure, two detection modes of the fundus camera and the optometry device can be realized by one device, so that the detection efficiency is improved.

Description

Device for eye detection

Technical Field

The present disclosure relates generally to the field of eye detection technology. More particularly, the present disclosure relates to an apparatus for eye detection.

Background

Eye detection is the detection of eyes of a subject by medical means and methods, including, for example, vision, fundus, conjunctiva, or intraocular pressure, to prevent and control eye diseases caused by overuse or improper use of eyes, and to protect eye health. In detecting eyes of a subject, an eye detection device is generally used for detection. At present, in the field of ophthalmic detection and diagnosis, a fundus camera and a computer optometry are the most commonly used and important eye detection devices, wherein the fundus camera can analyze and detect retina-related diseases, and the computer optometry can accurately measure the degree of refractive error of human eyes and can provide basis for configuring corrective glasses. However, since the computer optometry and the fundus camera are different in optical principle and application purpose, the existing computer optometry and fundus camera are independent devices. Therefore, when the eyes of the subject are detected, the eyes of the subject need to be detected on two independent devices (a computer optometry and a fundus camera) respectively, so that the detection efficiency is low.

Disclosure of Invention

To at least partially solve the technical problems mentioned in the background, an aspect of the present disclosure provides a device for eye detection. By utilizing the scheme of the present disclosure, two-in-one of the fundus camera and the optometry device can be realized, and the detection efficiency is improved. To this end, the present disclosure provides solutions in a number of aspects as follows.

In one aspect, the present disclosure provides an apparatus for ocular detection, comprising: a fundus camera including at least a front barrel assembly and a rear barrel assembly, and configured to perform a photographing operation on a fundus of an eye, wherein the front barrel assembly includes at least an objective lens; an optometry instrument which shares the ocular lens with the fundus camera and is configured to perform an optometry operation on an eye; and a mirror assembly disposed between the front barrel assembly and the rear barrel assembly and configured to switch an internal optical path of the apparatus to place the apparatus in a fundus camera mode in which the photographing operation is performed or an optometry mode in which the optometry operation is performed, respectively.

In one embodiment, wherein the mirror assembly comprises a first mirror, a moving rail, and a control motor, wherein the first mirror is connected to the control motor and the first mirror is arranged on the moving rail for reflecting the light path, the control motor is for controlling the first mirror to move up and down on the moving rail in a vertical direction so that the first mirror switches the internal light path of the device when moved out of a preset position or into the preset position.

In another embodiment, wherein the mirror assembly is further for: switching an internal optical path of the device into the fundus camera when it is moved out of the preset position so as to put the device in a fundus camera mode in which the photographing operation is performed; and switching the internal optical path of the device into the refractor when it is moved into the preset position so as to put the device in a refractor mode in which the optometry operation is performed.

In a further embodiment, wherein the mirror assembly further comprises a first, a second and a third support seat, wherein the first support seat is connected with the moving rail and is for supporting the first mirror, the second support seat is for supporting the moving rail, and the third support seat is for supporting the control motor.

In yet another embodiment, the predetermined position is on the same axis as the front barrel assembly and the rear barrel assembly.

In yet another embodiment, the front lens barrel assembly and the rear lens barrel assembly are fixed via a fixing base with a U shape, and an inverted U-shaped light shield adapted to the fixing base is provided on the fixing base, and the light shield is used for shielding an interference light path.

In yet another embodiment, the fixing base and the light shield form a hollow box, and the first reflecting mirror is embedded in the hollow box when the first reflecting mirror is moved into the preset position.

In yet another embodiment, a light transmission aperture is provided on the light shield and is configured to transmit the light path reflected into the refractor when the first mirror is moved into the preset position.

In yet another embodiment, wherein the refractor includes at least a second mirror, the second mirror is opposite the light-transmitting aperture and is configured to reflect the light path through the light-transmitting aperture inside the refractor.

In yet another embodiment, a light shielding plate is disposed above the first reflector, and the light shielding plate is used for shielding an interference light path reflected by the first reflector.

Through the scheme of this disclosure, through fundus camera and optometry appearance sharing receiver eyepiece to switch the internal light path of the device of this disclosure through the speculum subassembly, realized fundus camera and optometry appearance two unification, thereby promoted detection efficiency. Further, the embodiment of the disclosure controls the moving-in and moving-out of the reflector by controlling the motor, so that the resetting positioning precision after the moving-in and the moving-out can be ensured, and the stability of switching between the two modes of the device disclosed by the disclosure is ensured. In addition, the embodiment of the disclosure also shields the interference light path by arranging the light shield and the light shield, eliminates the miscellaneous flash, and can ensure the accuracy of the detection result.

Drawings

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

FIG. 1 is an exemplary block diagram illustrating an apparatus for eye detection in accordance with an embodiment of the present disclosure;

FIG. 2 is an exemplary schematic diagram illustrating the entirety of an apparatus for ocular detection in accordance with an embodiment of the present disclosure;

FIG. 3 is an exemplary schematic diagram illustrating a mirror assembly according to an embodiment of the present disclosure;

FIG. 4 is an exemplary schematic diagram illustrating a mount and a light shield according to an embodiment of the present disclosure;

FIG. 5 is an exemplary schematic diagram illustrating a first mirror being moved into a preset position according to an embodiment of the present disclosure;

FIG. 6 is an exemplary schematic diagram illustrating a first mirror being moved out of a preset position in accordance with an embodiment of the present disclosure; and

fig. 7 is an exemplary schematic diagram illustrating an internal optical path of an apparatus in refractor mode according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the embodiments described in this specification are only some embodiments of the disclosure provided to facilitate a clear understanding of the solution and to meet legal requirements, and not all embodiments of the disclosure may be implemented. All other embodiments, which can be made by those skilled in the art without the exercise of inventive faculty, are intended to be within the scope of the present disclosure, based on the embodiments disclosed herein.

Fig. 1 is an exemplary block diagram illustrating an apparatus 100 for eye detection according to an embodiment of the present disclosure. As shown in fig. 1, the apparatus 100 may include a fundus camera 101, an optometry 102, and a mirror assembly 103. The aforementioned fundus camera 101, optometry 102, and mirror assembly 103 will be described in detail below, respectively.

In one embodiment, the fundus camera 101 described above may be used to perform a photographing operation on the fundus of an eye to image the fundus, for example, a fundus retina image may be obtained. In one implementation scenario, the fundus camera may include at least a front barrel assembly and a rear barrel assembly, and the front barrel assembly may include at least an objective lens. In some embodiments, the aforementioned rear barrel assembly may include a fundus illumination light source (including infrared LEDs and white LEDs), a camera lens group, a beam splitting prism, and a receiving detector COMS. In the fundus camera mode, fundus imaging can be realized based on the objective lens in the front barrel assembly and the components in the rear barrel assembly. The imaging principle of the fundus camera mode will be described in detail later with reference to fig. 7.

In one embodiment, the optometry 102 shares an eyepiece with the fundus camera 101 and is used to perform an optometry operation on the eye to obtain the refractive extent of the eye. In one implementation, the refractor may include different types of mirrors, prisms and objectives, as well as refractive sensors, refractive white LEDs and infrared projection illumination lamps inside. In the optometry mode, a sensor light path, an infrared light source light path and a white light source light path can be formed based on the components, so that the refraction degree of eyes is measured. The measurement of the ocular diopter in the refractometer mode will be described in detail later with reference to fig. 7.

In one embodiment, the mirror assembly 103 is disposed between the front barrel assembly and the rear barrel assembly of the fundus camera 101, and is used to switch the internal optical path of the device to place the device in a fundus camera mode in which photographing operation is performed or an optometry mode in which optometry operation is performed, respectively. In one implementation, the mirror assembly can include a first mirror, a moving rail, and a control motor. Wherein the first mirror may be connected to the control motor and disposed on the moving rail for reflecting an optical path. The control motor may be used to control the first mirror to move up and down in a vertical direction on the moving rail so that the internal optical path of the switching device is switched when the first mirror is moved out of the preset position or into the preset position. In some embodiments, the foregoing mirror assembly can further comprise first, second, and third support blocks. The first, second and third supporting seats are respectively used for supporting the first reflecting mirror, the movable guide rail and the control motor. The first supporting seat is also connected with the movable guide rail so as to enable the first reflecting mirror to move up and down along the movable guide rail. In addition, a light shielding plate can be arranged on the first reflecting mirror in the reflecting mirror assembly so as to shield an interference light path reflected by the first reflecting mirror. The mirror assembly of the embodiment of the present disclosure will be described in detail later with reference to fig. 3.

In one embodiment, the control motor may be, for example, a screw motor, and the screw motor drives the first mirror to move up and down on the moving rail, so as to move the first mirror out of the preset position (for example, shown in fig. 6) or into the preset position (for example, shown in fig. 5). The internal optical path of the device is switched based on the first mirror being moved out of the preset position or into the preset position, so that the device is respectively in a fundus camera mode in which photographing operation is performed or in a refractor mode in which optometry operation is performed. Specifically, when the first reflecting mirror is moved out of the preset position, the internal optical path of the device is switched into the fundus camera so as to make the device in a fundus camera mode for performing photographing operation. When the first reflecting mirror is moved into a preset position, the internal light path of the device is switched into the optometry device so as to enable the device to be in an optometry mode for executing optometry operation, and therefore two-in-one of the fundus camera and the optometry device is achieved.

As can be seen from the above description, the embodiments of the present disclosure share the eyepiece through the fundus camera and the optometry, and the mirror assembly is added between the front barrel assembly and the rear barrel assembly of the fundus camera to switch the internal optical path of the device, so that the device of the embodiments of the present disclosure can operate in the fundus camera mode and the optometry mode accordingly. By utilizing the embodiment of the disclosure, the fundus image and the refractive degree can be obtained by detecting the eyes of the testee once, so that the detection efficiency is greatly improved. Further, according to the embodiment of the disclosure, the first reflecting mirror can be ensured to be moved out of and moved into the preset position with the aid of the screw motor, for example, so that the stability of mode switching of the device is ensured.

Fig. 2 is an exemplary schematic diagram illustrating the entirety of an apparatus for eye detection according to an embodiment of the present disclosure. It should be appreciated that FIG. 2 is one particular embodiment of the apparatus 100 of FIG. 1 described above, and thus the description of FIG. 1 described above applies equally to FIG. 2.

As shown in fig. 2, the apparatus of the embodiments of the present disclosure may include a fundus camera 101, an optometry 102, wherein the fundus camera 101 and optometry 102 share an objective eyepiece 202 in a front barrel assembly 201 of the fundus camera 101 to detect eyes of a subject. Further, a mirror assembly 103 is provided between the front barrel assembly 201 and the rear barrel assembly 203 of the fundus camera 101, and an internal optical path of the apparatus of the embodiment of the present disclosure is switched by the mirror assembly 103 to make the apparatus be in a fundus camera mode in which photographing operation is performed or an optometry mode in which optometry operation is performed, respectively. As previously known, the mirror assembly 103 can include a first mirror, a moving rail, and a control motor. The first mirror in the mirror assembly 103 can be controlled to move up and down in a vertical direction along the moving rail by controlling the motor so that the internal optical path of the device is switched when the first mirror is moved out of the preset position or moved into the preset position.

In one exemplary scenario, the internal optical path of the apparatus of the embodiments of the present disclosure is switched into the fundus camera 101 in the direction of the horizontal arrow shown in the figure when the first mirror in the mirror assembly 103 is moved out of the preset position. Then, fundus imaging is realized via, for example, a fundus illumination light source (including an infrared LED and a white LED), a photographic lens group, a beam splitter prism, and a reception detector COMS within the rear barrel assembly 203 in the fundus camera 101. In another exemplary scenario, the internal optical path of the apparatus of the disclosed embodiments switches into refractor 102 in the direction of the vertical arrow shown in the figures when the first mirror in mirror assembly 103 is moved into a preset position. Further, measuring the refractive extent of the eye is achieved via different types of mirrors, prisms and objectives within refractor 102, as well as refractive sensors, refractive white LEDs and infrared projection illumination lamps. In some embodiments, the aforementioned refractor 102 is provided with a sensor fixing base 204, a focusing lens group fixing base 205, a lens barrel fixing base 206, a first mirror fixing base 207, a prism fixing base 208, a focusing motor 209, and a second mirror fixing base 210, so as to fix, for example, a diopter sensor, different types of mirrors, and a focusing assembly, respectively.

Fig. 3 is an exemplary schematic diagram illustrating a mirror assembly 103 according to an embodiment of the present disclosure. As shown in fig. 3, the mirror assembly 103 may include a first mirror 301, a moving rail 302, and a control motor 303, and the first mirror 301, the moving rail 302, and the control motor 303 are supported by corresponding support blocks, respectively. For example, the first mirror 301 is supported by a first support base 304. Similarly, the moving rail 302 and the control motor 303 are supported by a second support seat 305 and a third support seat 306, respectively. Further, the aforementioned first reflecting mirror 301 is connected to the moving rail 302 and the control motor 303 via a first support base 304, and is used to reflect the optical path. Further, a light shielding plate 307 is further disposed above the first reflecting mirror 301 to shield the first reflecting mirror and external stray light.

In the implementation scenario, the first mirror 301 is driven to move up and down along the moving rail 302 by the operation of the control motor 303, so as to move the first mirror 301 out of the preset position or into the preset position. As can be seen from the foregoing description, the control motor 303 may be, for example, a screw motor, and the first mirror 301 is moved out of the preset position or into the preset position by the transmission of the screw motor. When the first mirror 301 is moved out of the preset position, the internal optical path of the apparatus of the embodiment of the present disclosure is switched into the fundus camera to make the apparatus in the fundus camera mode in which photographing operation is performed. When the first mirror 301 is moved into the preset position, the optical path is reflected by the first mirror 301, so that the internal optical path of the apparatus of the embodiment of the present disclosure is switched to the refractor, so that the apparatus is in the refractor mode for performing the optometry operation.

In one embodiment, the preset position (e.g., the position shown by the dashed line in fig. 5) in the embodiment of the disclosure is on the same axis as the front barrel assembly and the rear barrel assembly of the fundus camera, so as to ensure that the first mirror can reflect the light path into the optometry when controlled by the control motor to move into the preset position. In some embodiments, the aforementioned control motor may be implemented using, for example, a programmable logic controller (Programmable Logic Controller, "PLC") such that the first mirror is reset with a high accuracy, for example, up to 0.02mm, when moved into the preset position. Furthermore, the control motor can also effect the removal or the movement of the first mirror in a short time (for example, 0.5 s).

In one embodiment, in order to avoid interference of light paths when the device of the embodiment of the present disclosure is in the fundus camera mode and the optometry mode, respectively, the present disclosure first sets a U-shaped fixing base on a front lens barrel assembly and a rear lens barrel assembly of the fundus camera to fix them. Next, an inverted U-shaped light shield is disposed on the fixing base, so as to block the interference light path, as shown in fig. 4.

Fig. 4 is an exemplary schematic diagram illustrating a holder and a light shield according to an embodiment of the present disclosure. The holder 401 is U-shaped as shown in fig. 4, and a front part 402 and a rear part 403 of the holder 401 are used to fix a front barrel assembly and a rear barrel assembly of the bottom-of-eye camera, respectively. Further, the light shielding cover 404 is shown as an inverted U, and the light shielding cover 404 can be used for shielding the interference light path so as to avoid the interference of the miscellaneous flash in the fundus camera and the optometry. In one implementation scenario, the aforementioned holder and the light shield adapted thereto form a hollow box, and the first mirror of the embodiments of the present disclosure is embedded within the hollow box (e.g., as shown in fig. 5) when the first mirror is moved into a preset position. For example, in one exemplary scenario, the first mirror may be embedded within the hollow box via an embedded opening 405 at the bottom of the holder 401 shown in fig. 4.

In one embodiment, the light shield is further provided with a light aperture (e.g., light aperture 501 of fig. 5) that can be used to transmit the light path reflected into the refractor when the first mirror is moved into the predetermined position. That is, when the first reflecting mirror is moved into the preset position, the internal light path of the device of the embodiment of the disclosure is reflected into the optometry apparatus through the light hole on the light shield. As previously described, the refractor may include a different type of mirror, for example, it may include a second mirror (i.e., the splitting mirror 713 shown in fig. 7). In some embodiments, the second mirror is opposite the light-transmitting aperture in the light-shield and is configured to reflect the light path through the light-transmitting aperture inside the optometry apparatus. In other words, when the first reflecting mirror is moved into the preset position, the internal light path of the device of the embodiment of the disclosure is reflected to the second reflecting mirror through the light hole on the light shielding cover, and then reflected into the optometry device through the second reflecting mirror, so that the device of the embodiment of the disclosure is in the optometry mode.

Fig. 5 is an exemplary schematic diagram illustrating a first mirror being moved into a preset position according to an embodiment of the present disclosure. As shown in fig. 5, the mirror assembly 103 of the embodiment of the present disclosure is disposed between the front barrel assembly 201 and the rear barrel assembly 203 of the fundus camera 101, and the mirror assembly 103 includes a first mirror (e.g., the first mirror 301 shown in fig. 3, 7), a moving rail 302, and a control motor 303. Wherein the first mirror moves up and down along the moving rail 302 under the control of the aforementioned control motor 303, and a light shielding plate 307 is further provided above the first mirror. As further shown in the figure, the front barrel assembly 201 and the rear barrel assembly 203 are fixed via a fixing base 401, and a light shield 404 adapted to the fixing base 401 is provided on the fixing base 401 to avoid interference between optical paths in the fundus camera and the optometry. Further, the fixing seat 401 and the light shielding cover 404 form a hollow box body, and when the first reflecting mirror is moved into the preset position, the first reflecting mirror is embedded in the hollow box body.

In this scenario, the internal optical path of the device of the embodiments of the present disclosure is reflected via the first mirror as it passes through the first mirror. Then, the reflected light path reflected by the first reflecting mirror enters the optometry apparatus through the light hole 501 on the light shielding cover 404, so that the apparatus is in the optometry mode to measure the refraction degree of the eyes.

Fig. 6 is an exemplary schematic diagram illustrating the first mirror being moved out of a preset position according to an embodiment of the present disclosure. As shown in fig. 6, the mirror assembly 103 of the embodiment of the present disclosure is disposed between the front barrel assembly 201 and the rear barrel assembly 203 of the fundus camera 101, and the mirror assembly 103 includes a first mirror (e.g., the first mirror 301 shown in fig. 3, 7), a moving rail 302, and a control motor 303. Wherein the first mirror moves up and down along the moving rail 302 under the control of the aforementioned control motor 303. In addition, a light shielding plate 307 is disposed above the first reflecting mirror, and the light shielding plate 307 may be used to shield the interfering light path reflected by the first reflecting mirror and stray light outside the device.

As further shown in the figure, the front barrel assembly 201 and the rear barrel assembly 203 are fixed via a fixing base 401, and a light shield 404 adapted to the fixing base 401 is provided on the fixing base 401 to avoid interference between optical paths in the fundus camera and the optometry. Further, the fixing seat 401 and the light shielding cover 404 form a hollow box body, when the first reflecting mirror is moved out of the preset position, the first reflecting mirror is moved out of the hollow box body, and the light shielding plate on the first reflecting mirror is tightly attached to the bottom in the fixing seat 401, so that the hollow box body is closed. In this scenario, the light shielding plate of the embodiment of the present disclosure may also avoid external light from interfering with the optical path within the fundus camera. Based on this, the internal light path of the device of the embodiment of the present disclosure reaches the rear barrel assembly 203 by the front barrel assembly 201 of the fundus camera to put the device in the fundus camera mode to realize fundus imaging of the eye.

Fig. 7 is an exemplary schematic diagram illustrating an internal optical path of an apparatus in refractor mode according to an embodiment of the present disclosure.

As shown in fig. 7, the apparatus of the embodiments of the present disclosure is in refractor mode when first mirror 301 is moved into a preset position (e.g., as shown in fig. 5 above). Specifically, in the refractor mode, the infrared projection illumination lamp 707 in the refractor 102 first illuminates the annular reticle 710 in front of it through the illumination condenser 708 and cone 709 to form a circular light ring. Further, the circular light ring is sequentially transmitted through the projection objective 711, the reflection of the tape Kong Lengjing 712, the transmission of the spectroscopic reflector 713, the reflection of the first reflector 301, and the transmission of the objective 702, and then irradiated to the eye 703 to be inspected. Then, the fundus retina of the eye 703 to be measured is reflected and returned. That is, the light beam is reflected by the first mirror 301 after passing through the objective lens 702, and the reflected light path is reflected to the subsequent split mirror 713 through the light hole on the light shield. Then, the light is reflected by the second mirror 714 through the aperture of the tape Kong Lengjing 712 via the spectroscopic mirror 713, and is finally received by the refraction measuring sensor 718 via the measuring objective 715, the compensation plate 716 and the imaging objective 717.

At the same time, the white LED lamp 719 in the optometry 102 illuminates the image on the fog chart 720, and further passes through the fog objective 721 and then passes through the objective lens 702 via the reflection of the spectroscopic mirror 713 and the first mirror 301 to be irradiated to the eye 703 to be measured. Finally, by moving the focusing module back and forth along the optical axis by the focusing assembly 722 in the optometry 102, the circle on the refraction measurement sensor 718 is made to be the sharpest, and at the same time, the fog image seen by the measured eye 703 is also the sharpest. Then, the diopter of the eye 703 to be measured can be obtained by analyzing and calculating the annular image. It will be appreciated that in performing a refractive measurement, it is necessary to perform the measurement while the optic nerve of the eye being measured is relaxed to ensure accuracy of the measurement of the diopter.

Although not shown in fig. 7, those skilled in the art will appreciate that the apparatus of the embodiments of the present disclosure is in fundus camera mode when the first mirror 301 is moved out of the preset position (e.g., as described above with respect to fig. 6). Specifically, in the fundus camera mode, first, a fundus illumination light source (including an infrared LED and a white LED) 701 in the fundus camera 101 is imaged at the pupil position via an eyepiece 702 (i.e., the eyepiece 202 shown in fig. 2 described above) and illuminates, for example, the fundus retina of the eye to be measured 703. Then, after the reflected light of the fundus retina passes through the objective lens 702, the imaging lens group 704, and the beam splitter prism 705, the fundus retina is imaged onto the reception detector COMS 706, thereby realizing fundus imaging.

Based on this, realized fundus camera and optometry two unification to through the device of this disclosure, detect the eye of testee once, can obtain fundus image and the diopter of eye, greatly promoted detection efficiency.

It should be noted that although the operations of the disclosed methods are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in that particular order or that all of the illustrated operations be performed in order to achieve desirable results. Rather, the steps depicted in the flowcharts may change the order of execution. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform.

It should be understood that when the terms "first," "second," "third," and "fourth," etc. are used in the claims, the specification and the drawings of the present disclosure, they are used merely to distinguish between different objects, and not to describe a particular order. The terms "comprises" and "comprising" when used in the specification and claims of this disclosure are taken to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the present disclosure is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. As used in this disclosure and in the claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the present disclosure and claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

While the embodiments of the present disclosure are described above, the descriptions are merely examples employed to facilitate understanding of the present disclosure, and are not intended to limit the scope and application of the present disclosure. Any person skilled in the art to which this disclosure pertains will appreciate that numerous modifications and variations in form and detail can be made without departing from the spirit and scope of the disclosure, but the scope of the disclosure is to be determined by the appended claims.

Claims (10)

1. An apparatus for ocular detection, comprising:

a fundus camera including at least a front barrel assembly and a rear barrel assembly, and configured to perform a photographing operation on a fundus of an eye, wherein the front barrel assembly includes at least an objective lens;

an optometry instrument which shares the ocular lens with the fundus camera and is configured to perform an optometry operation on an eye; and

a mirror assembly disposed between the front barrel assembly and the rear barrel assembly and configured to switch an internal optical path of the apparatus to place the apparatus in a fundus camera mode in which the photographing operation is performed or an optometry mode in which the optometry operation is performed, respectively.

2. The apparatus of claim 1, wherein the mirror assembly comprises a first mirror, a moving rail, and a control motor, wherein the first mirror is connected to the control motor, and the first mirror is disposed on the moving rail for reflecting an optical path, and the control motor is for controlling the first mirror to move up and down on the moving rail in a vertical direction so that the first mirror switches an internal optical path of the apparatus when moved out of a preset position or into the preset position.

3. The apparatus of claim 2, wherein the mirror assembly is further to:

switching an internal optical path of the device into the fundus camera when it is moved out of the preset position so as to put the device in a fundus camera mode in which the photographing operation is performed; and

when it is moved into the preset position, the internal optical path of the device is switched into the refractor so as to put the device in a refractor mode in which the optometry operation is performed.

4. The apparatus of claim 3, wherein the mirror assembly further comprises first, second and third support blocks, wherein the first support block is coupled to the moving rail and is configured to support the first mirror, the second support block is configured to support the moving rail, and the third support block is configured to support the control motor.

5. The device of claim 3, wherein the preset position is on the same axis as the front barrel assembly, the rear barrel assembly.

6. The device of claim 5, wherein the front lens barrel assembly and the rear lens barrel assembly are fixed via a U-shaped fixing seat, and an inverted U-shaped light shield matched with the fixing seat is arranged on the fixing seat and used for shielding an interference light path.

7. The device of claim 6, wherein the holder and the light shield form a hollow box and the first mirror is embedded within the hollow box when the first mirror is moved into the preset position.

8. The apparatus of claim 7, wherein the light shield is provided with a light aperture, and the light aperture is configured to pass through an optical path reflected into the refractor when the first mirror is moved into the preset position.

9. The apparatus of claim 8, wherein the refractor comprises at least a second mirror opposite the light-transmitting aperture and for reflecting an optical path through the light-transmitting aperture inside the refractor.

10. The device of claim 7, wherein a light shield is disposed above the first mirror and is configured to shield an interfering light path reflected by the first mirror.