A multifunctional optical detector for detecting eyes

Abstract

This disclosure relates to a multifunctional optical inspection instrument for eye examination. The multifunctional optical inspection instrument includes: a first optical component group comprising at least a front lens assembly and a rear lens assembly, arranged at a first predetermined position within the multifunctional optical inspection instrument to form a first optical path for imaging the fundus of the eye; a second optical component group arranged at a second predetermined position within the multifunctional optical inspection instrument to form a second optical path for refraction testing of the eye; and a first reflector disposed between the front lens assembly and the rear lens assembly and configured to be movable relative to a preset optical path conversion position, so as to convert the working optical path of the multifunctional optical inspection instrument into the corresponding first optical path or the second optical path. Using the solution of this disclosure, both eye imaging and eye refraction testing modes can be achieved with a single device, improving inspection efficiency.

Description

Technical Field

[0001] This disclosure generally relates to the field of eye examination technology. More specifically, this disclosure relates to a multifunctional optical examination instrument for examining the eye. Background Technology

[0002] Eye examination involves using medical methods to assess a subject's eyes, including visual acuity, fundus examination, conjunctival examination, and intraocular pressure, to prevent and control eye diseases caused by excessive or improper use of the eyes and to protect eye health. Eye examinations are typically conducted using specialized equipment. Currently, fundus cameras and refractometers are the most commonly used and important eye examination devices in ophthalmic testing and diagnosis. Fundus cameras can analyze and detect retinal-related diseases, while refractometers accurately determine the degree of refractive error, providing a basis for prescribing corrective lenses. However, due to differences in optical principles and applications, existing refractometers and fundus cameras are currently separate devices. Therefore, eye examinations require separate testing on two independent devices (refractometer and fundus camera), resulting in low efficiency. Summary of the Invention

[0003] To at least partially address the technical problems mentioned in the background section, this disclosure provides a multifunctional optical inspection instrument for eye examination. Utilizing this disclosure, both fundus imaging and refraction testing modes can be achieved, improving inspection efficiency. To this end, this disclosure provides solutions in several aspects, including...

[0004] In one aspect, this disclosure provides a multifunctional optical inspection instrument for examining the eye, comprising: a first optical component group including at least a front lens assembly and a rear lens assembly, and arranged in the multifunctional optical inspection instrument at a first predetermined position to form a first optical path for imaging the fundus of the eye; a second optical component group arranged in the multifunctional optical inspection instrument at a second predetermined position to form a second optical path for refraction of the eye; and a first reflector arranged between the front lens assembly and the rear lens assembly and configured to be movable relative to a preset optical path conversion position to convert the working optical path of the multifunctional optical inspection instrument into the corresponding first optical path or the second optical path.

[0005] In one embodiment, during movement relative to a preset optical path conversion position, the first reflector is configured to: when it moves into the preset optical path conversion position, block the light entering the multifunctional optical detector from propagating along the first optical path, so as to convert the working optical path into the second optical path; or when it moves out of the preset optical path conversion position, release the obstruction of the first optical path, so that the light entering the multifunctional optical detector propagates along the first optical path, so as to convert the working optical path into the first optical path.

[0006] In another embodiment, the preset optical path conversion position is on the same axis as the front lens assembly and the rear lens assembly.

[0007] In another embodiment, the front lens assembly includes at least an object eyepiece, and the rear lens assembly includes at least a fundus illumination source, a fundus camera assembly, a fundus beam splitter, and a fundus receiver detector. The object eyepiece, the fundus illumination source, the fundus camera assembly, the fundus beam splitter, and the fundus receiver detector are arranged in a first predetermined position within the multifunctional optical detector to form a first optical path for imaging the fundus of the eye.

[0008] In yet another embodiment, the second optical device group and the first optical device group include the same object eyepiece.

[0009] In yet another embodiment, the second optical device group further includes at least a second reflector, a white light source, an infrared light source, a perforated prism, a third reflector, and a refractive sensor, and the object eyepiece, the second reflector, the white light source, the infrared light source, the perforated prism, the third reflector, and the refractive sensor are arranged in a second predetermined position within the multifunctional optical detector to form a second optical path for refraction of the eye.

[0010] In yet another embodiment, the second optical path includes a sensor optical path, an infrared light source optical path, and a white light source optical path, and the white light source optical path is formed at least via the second reflector and the white light source, the infrared light source optical path is formed at least via the perforated prism and the infrared light source, and the sensor optical path is formed at least via the third reflector and the refractive sensor.

[0011] In yet another embodiment, the second reflector and the white light source optical path, the perforated prism and the infrared light source, and the third reflector and the refractive sensor are all located in the same horizontal direction.

[0012] In yet another embodiment, the second reflector, the perforated prism, and the third reflector are positioned in the same vertical direction.

[0013] In another embodiment, wherein the first reflector and the second reflector are in the same vertical direction, and when the first reflector is moved into the preset optical path conversion position, the first reflector is configured to: reflect the infrared light source through the second reflector at least through its transmitted light path to the eyepiece to illuminate the eye; reflect the light reflected from the eye through the eyepiece to the second reflector, so that it reaches the refractive sensor through at least the second reflector, the perforated prism, and the third reflector; and reflect the white light source through the second reflector at least through its reflected light path to the eyepiece to illuminate the eye, thereby converting the working optical path of the multifunctional optical detector into the second optical path.

[0014] The scheme disclosed herein uses an optical device group to form a first optical path and a second optical path for imaging the eye and for refraction of the eye, respectively. Furthermore, a first reflector that is movable relative to a preset optical path conversion position converts the working optical path of the multifunctional optical detector into the corresponding first or second optical path. This enables the realization of both imaging and refraction of the fundus in a single device, thereby improving detection efficiency. Attached Figure Description

[0015] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0016] Figure 1 This is an exemplary structural block diagram illustrating a multifunctional optical inspection instrument for detecting the eye according to an embodiment of the present disclosure;

[0017] Figure 2 This is an exemplary schematic diagram showing the working optical path of a multifunctional optical inspection instrument for detecting the eye according to an embodiment of the present disclosure;

[0018] Figure 3 This is an exemplary schematic diagram showing the first reflector moving into a preset optical path conversion position according to an embodiment of the present disclosure;

[0019] Figure 4 This is an exemplary schematic diagram showing the first reflector moving out of a preset optical path conversion position according to an embodiment of the present disclosure; and

[0020] Figure 5 This is an exemplary schematic diagram showing the entirety of a first reflector moving into a preset optical path conversion position according to an embodiment of the present disclosure. Detailed Implementation

[0021] The technical solutions in the embodiments of this disclosure will now be clearly and completely described with reference to the accompanying drawings. It should be understood that the embodiments described in this specification are only some embodiments provided by this disclosure for the purpose of facilitating a clear understanding of the solutions and complying with legal requirements, and are not all embodiments that can be implemented by this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments disclosed in this specification without creative effort are within the scope of protection of this disclosure.

[0022] Figure 1 This is an exemplary structural block diagram illustrating a multifunctional optical inspection instrument 100 for eye inspection according to an embodiment of the present disclosure. Figure 1 As shown, the multifunctional optical inspection instrument 100 may include a first optical component group 101, a second optical component group 102, and a first reflector 103. The first optical component group 101, the second optical component group 102, and the first reflector 103 will be described in detail below.

[0023] In one embodiment, the first optical device group 101 may include a front lens assembly and a rear lens assembly, and are arranged at a first predetermined position within the multifunctional optical detector of this disclosure embodiment to form a first optical path for imaging the fundus of the eye. For example, a fundus retinal image can be obtained via the first optical path. In some embodiments, the aforementioned front lens assembly may include at least an object eyepiece. The aforementioned rear lens assembly may include a fundus illumination source (including infrared LEDs and white LEDs), a fundus camera assembly, a fundus beam splitter, and a fundus receiver detector (CMOS). In one implementation scenario, the aforementioned object eyepiece, fundus illumination source, fundus camera assembly, fundus beam splitter, and fundus receiver detector are arranged at a first predetermined position within the multifunctional optical detector of this disclosure embodiment to form a first optical path for imaging the fundus of the eye. This will be discussed later in conjunction with... Figure 2 Describe the first optical path in detail.

[0024] In one embodiment, the second optical device group 102 is arranged at a second predetermined position within the multifunctional optical detector of this embodiment to form a second optical path for eye refraction. In the implementation scenario, the second optical device group and the first optical device group share a common eyepiece. That is, the second optical device group and the first optical device group share the same eyepiece. Furthermore, the aforementioned second optical device group also includes at least a second reflector, a white light source, an infrared light source, a perforated prism, a third reflector, and a refractive sensor. In this scenario, the second optical path for eye refraction can be formed by arranging the aforementioned eyepiece, second reflector, white light source, infrared light source, perforated prism, third reflector, and refractive sensor at the second predetermined position within the multifunctional optical detector of this embodiment. In some embodiments, the second optical path of this disclosure may include a sensor optical path, an infrared light source optical path, and a white light source optical path, and a white light source optical path is formed at least via a second reflector and a white light source, an infrared light source optical path is formed at least via a perforated prism and an infrared light source, and a sensor optical path is formed at least via a third reflector and a refractive sensor. The aforementioned second reflector and white light source optical path, perforated prism and infrared light source, and third reflector and refractive sensor are all located in the same horizontal direction, while the aforementioned second reflector, perforated prism, and third reflector are located in the same vertical direction. This will be discussed later in conjunction with... Figure 2 Describe the second optical path in detail.

[0025] In one embodiment, the first reflector 103 may be arranged between the front lens assembly and the rear lens assembly of the first optical device group, and is configured to be movable relative to a preset optical path conversion position, so as to convert the working optical path of the multifunctional optical inspection instrument of this disclosure embodiment into a corresponding first optical path or a second optical path. In the implementation scenario, the aforementioned preset optical path conversion position is on the same axis as the front lens assembly and the rear lens assembly. Specifically, when the first reflector moves into the preset optical path conversion position, it can block the light entering the multifunctional optical inspection instrument of this disclosure embodiment from propagating along the first optical path, so as to convert the working optical path into the second optical path. Alternatively, when the first reflector moves out of the preset optical path conversion position, it releases the obstruction of the first optical path, allowing the light entering the multifunctional optical inspection instrument to propagate along the first optical path, so as to convert the working optical path into the first optical path.

[0026] In some embodiments, the first reflecting mirror is aligned vertically with the second reflecting mirror, the perforated prism, and the third reflecting mirror in the first optical device group. When the first reflecting mirror moves into a preset optical path conversion position, the infrared light source is reflected, at least through the second reflecting mirror, to the objective eyepiece to illuminate the eye. Then, the light reflected from the eye is reflected back to the second reflecting mirror, reaching the refractive sensor at least through the second reflecting mirror, the perforated prism, and the third reflecting mirror. Furthermore, the white light source is also reflected, at least through the second reflecting mirror, to the objective eyepiece to illuminate the eye, thereby converting the working optical path of the multifunctional optical detector into a second optical path. This will be discussed later in conjunction with... Figures 3-4 The switching of the working optical path of the multifunctional optical detector according to the embodiments of this disclosure is described in detail.

[0027] As described above, the embodiments of this disclosure introduce a first reflecting mirror between the front and rear lens barrel assemblies of the first optical device group. The insertion and removal of this first reflecting mirror converts the working optical path of the multifunctional optical detector into a corresponding first or second optical path. Therefore, a single device can perform both imaging and refraction testing of the fundus, improving testing efficiency.

[0028] Figure 2 This is an exemplary schematic diagram illustrating the working optical path of a multifunctional optical inspection instrument for detecting the eye according to an embodiment of the present disclosure. It should be understood that... Figure 2 The above Figure 1 A specific embodiment of the described multifunctional optical inspection instrument 100, therefore the above regarding Figure 1 The description also applies to Figure 2 .

[0029] like Figure 2 As shown within the dashed box, the first optical component group in the multifunctional optical inspection instrument of this embodiment may include a front lens assembly 201 and a rear lens assembly 202. The front lens assembly 201 may include an eyepiece 203, and the rear lens assembly 202 may include a fundus illumination source 204, a fundus camera lens group 205, a fundus beam splitter 206, and a fundus receiver detector 207. As described above, the eyepiece 203, fundus illumination source 204, fundus camera lens group 205, fundus beam splitter 206, and fundus receiver detector 207 are arranged in a first predetermined position within the multifunctional optical inspection instrument of this embodiment, forming a first optical path for imaging the fundus of the eye.

[0030] like Figure 2As shown within the solid line box, the second optical component group in the multifunctional optical detector of this embodiment shares the objective eyepiece 203 with the aforementioned first optical component group. Further, the second optical component group also includes at least a second reflecting mirror 208, a white light source 209, an infrared light source 210, a perforated prism 211, a third reflecting mirror 212, and a refractive sensor 213. As previously described, the aforementioned objective eyepiece 203, second reflecting mirror 208, white light source 209, infrared light source 210, perforated prism 211, third reflecting mirror 212, and refractive sensor 213 are arranged in a second predetermined position within the multifunctional optical detector of this embodiment, forming a second optical path for eye refraction. This second optical path may include a sensor optical path 214, an infrared light source optical path 215, and a white light source optical path 216.

[0031] In one exemplary scenario, the second reflector 208 and the white light source 209 are positioned in the same horizontal direction, and a white light source optical path 216 is formed at least via the second reflector 208 and the white light source 209. Similarly, the infrared light source 210 and the perforated prism 211 are positioned in the same horizontal direction, and an infrared light source optical path 215 is formed at least via the infrared light source 210 and the perforated prism 211. The third reflector 212 and the refractive sensor 213 are positioned in the same horizontal direction, and a sensor optical path 214 is formed at least via the third reflector 212 and the refractive sensor 213. Further, the second reflector 208, the perforated prism 211, and the third reflector 212 are positioned in the same vertical direction.

[0032] Based on the above-described optical path arrangement, a first reflecting mirror is added between the front and rear lens barrel assemblies of the first optical device group, and this first reflecting mirror is movable relative to a preset optical path conversion position. Furthermore, by moving the first reflecting mirror into and out of the preset optical path conversion position, the operation of the multifunctional optical detector of this embodiment is switched to either the first or second optical path, thereby achieving two detection modes: imaging the fundus of the eye and refraction testing of the eye. The following will combine... Figures 3-4 Describe the scenarios of the first reflector moving into and out of the preset optical path conversion position.

[0033] Figure 3 This is an exemplary schematic diagram illustrating the movement of a first reflector into a preset optical path conversion position according to an embodiment of the present disclosure. It should be understood that... Figure 3 The above Figure 1 Another specific embodiment of the described multifunctional optical inspection instrument 100, therefore the above regarding Figure 1 The description also applies to Figure 3 .

[0034] like Figure 3As shown within the dashed box, the first optical component group in the multifunctional optical inspection instrument of this embodiment may include a front lens barrel assembly 201 and a rear lens barrel assembly 202. The front lens barrel assembly 201 may include an objective eyepiece 203, and the rear lens barrel assembly 202 may include a fundus illumination source 204, a fundus camera lens group 205, a fundus beam splitter 206, and a fundus receiver detector 207. As described above, the objective eyepiece 203, fundus illumination source 204, fundus camera lens group 205, fundus beam splitter 206, and fundus receiver detector 207 are arranged in a first predetermined position within the multifunctional optical inspection instrument of this embodiment, forming a first optical path for imaging the fundus of the eye. Furthermore, a first reflecting mirror 103, movable relative to a preset optical path conversion position (e.g., shown by the thick solid line in the figure), is provided between the front lens barrel assembly 201 and the rear lens barrel assembly 202. The preset optical path conversion position is on the same axis as the aforementioned front and rear mirror barrel assemblies. The figure shows the first reflector 103 moving into the preset optical path conversion position.

[0035] like Figure 3 As shown within the solid line box, the second optical component group in the multifunctional optical detector of this embodiment shares the objective eyepiece 203 with the first optical component group. Further, the second optical component group also includes at least a second reflector 208, a white light source 209, an infrared light source 210, a perforated prism 211, a third reflector 212, and a refractive sensor 213. As described above, the aforementioned objective eyepiece 203, second reflector 208, white light source 209, infrared light source 210, perforated prism 211, third reflector 212, and refractive sensor 213 are arranged in a second predetermined position within the multifunctional optical detector of this embodiment, forming a second optical path for eye refraction. This second optical path may include a sensor optical path 214, an infrared light source optical path 215, and a white light source optical path 216.

[0036] In this scenario, when the first reflector 103 moves into the preset optical path conversion position, it can be understood that it blocks the light entering the multifunctional optical detector from propagating along the first optical path and reflects the light, thereby converting the operation of the multifunctional optical detector of this embodiment to the second optical path. Specifically, when the first reflector 103 moves into the preset optical path conversion position, the first reflector 103 reflects the light path of the infrared light source 210 transmitted through the second reflector 208 to the eyepiece 203 to illuminate the eye. Then, the light path reflected from the eye is reflected through the eyepiece 203 to the second reflector 208, so that the reflected light path reaches the refractive sensor 213 through the second reflector 208, the perforated prism 211, and the third reflector 212. In addition, the first reflector 103 also reflects the light path of the white light source 209 reflected through the second reflector 208 to the eyepiece 203 to illuminate the eye. Based on this, the operation of the multifunctional optical detector of this embodiment is switched to the second optical path to enter the detection mode for eye refraction.

[0037] Figure 4 This is an exemplary schematic diagram illustrating the removal of a first reflector from a preset optical path conversion position according to an embodiment of the present disclosure. It should be understood that... Figure 4 The above Figure 1 Another specific embodiment of the described multifunctional optical inspection instrument 100, therefore the above regarding Figure 1 The description also applies to Figure 4 .

[0038] like Figure 4 As shown within the dashed box, the first optical component group in the multifunctional optical inspection instrument of this embodiment may include a front lens barrel assembly 201 and a rear lens barrel assembly 202. The front lens barrel assembly 201 may include an objective eyepiece 203, and the rear lens barrel assembly 202 may include a fundus illumination source 204, a fundus camera lens group 205, a fundus beam splitter 206, and a fundus receiver detector 207. As described above, the objective eyepiece 203, fundus illumination source 204, fundus camera lens group 205, fundus beam splitter 206, and fundus receiver detector 207 are arranged in a first predetermined position within the multifunctional optical inspection instrument of this embodiment, forming a first optical path for imaging the fundus of the eye. Furthermore, a first reflecting mirror 103, movable relative to a preset optical path conversion position (e.g., shown by the thick solid line in the figure), is provided between the front lens barrel assembly 201 and the rear lens barrel assembly 202. The preset optical path conversion position is on the same axis as the aforementioned front and rear mirror barrel assemblies. The figure shows the first reflector 103 moving out of the preset optical path conversion position.

[0039] like Figure 4As shown within the solid line box, the second optical component group in the multifunctional optical detector of this embodiment shares the objective eyepiece 203 with the first optical component group. Further, the second optical component group also includes at least a second reflector 208, a white light source 209, an infrared light source 210, a perforated prism 211, a third reflector 212, and a refractive sensor 213. As described above, the aforementioned objective eyepiece 203, second reflector 208, white light source 209, infrared light source 210, perforated prism 211, third reflector 212, and refractive sensor 213 are arranged in a second predetermined position within the multifunctional optical detector of this embodiment, forming a second optical path for eye refraction. This second optical path may include a sensor optical path 214, an infrared light source optical path 215, and a white light source optical path 216.

[0040] In this scenario, when the first reflecting mirror 103 moves out of the preset optical path conversion position, it can be understood as removing the obstruction to the first optical path, allowing the light entering the multifunctional optical detector to propagate along the first optical path, thereby switching the operation of the multifunctional optical detector of this embodiment to the first optical path. Specifically, when the first reflecting mirror 103 moves out of the preset optical path conversion position, the fundus illumination source (including infrared LED and white LED) 204 first images onto the pupil position after passing through the eyepiece 203, illuminating the tested eye, such as the fundus retina. Then, the reflected light from the aforementioned fundus retina passes through the eyepiece 203, the fundus camera lens group 205, and the fundus beam splitter 206, and images the fundus retina onto the fundus receiver detector 207 to image the fundus. Based on this, the operation of the multifunctional optical detector of this embodiment is switched to the first optical path to enter the detection mode for imaging the fundus of the eye.

[0041] In some embodiments, in addition to the second reflecting mirror, white light source, infrared light source, perforated prism, third reflecting mirror, and refractive sensor described above, the second optical device group of this disclosure may further include, for example, a fogging objective, a fogging plate, a projection objective, a ring reticle, a conical lens, an illumination condenser lens, a measuring objective, a compensation plate, and an imaging objective. In the implementation scenario, the aforementioned fogging objective and fogging plate are disposed in the white light source optical path of the second optical path. The aforementioned projection objective, ring reticle, conical lens, and illumination condenser lens are disposed in the infrared light source optical path of the second optical path. The aforementioned measuring objective, compensation plate, and imaging objective are disposed in the sensor optical path of the second optical path, for example... Figure 5 As shown in the image.

[0042] Figure 5 This is an exemplary schematic diagram showing the entirety of a first reflector moving into a preset optical path conversion position according to an embodiment of the present disclosure. Figure 5As shown in the illustration, the first optical component group in the multifunctional optical inspection instrument of this disclosure embodiment may include a front lens assembly and a rear lens assembly. The aforementioned front lens assembly may include an objective eyepiece 203, and the aforementioned rear lens assembly may include a fundus illumination source 204, a fundus camera lens group 205, a fundus beam splitter prism 206, and a fundus receiver detector 207. The arrangement of the aforementioned first optical component group can be referred to the above description. Figures 2-4 The details described herein will not be repeated here. Furthermore, a first reflecting mirror 103 movable relative to a preset optical path conversion position is provided between the aforementioned front and rear lens barrel assemblies. This preset optical path conversion position is coaxial with the aforementioned front and rear lens barrel assemblies, and the figure shows the first reflecting mirror 103 moved into the preset optical path conversion position.

[0043] The figure further shows that the second optical component group in the multifunctional optical inspection instrument of this embodiment shares the objective eyepiece 203 with the first optical component group. Further, the second optical component group includes a second reflecting mirror 208, a white light source 209, an infrared light source 210, a perforated prism 211, a third reflecting mirror 212, a refractive sensor 213, a fogging objective lens 501, a fogging viewing plate 502, a projection objective lens 503, a ring reticle 504, a conical mirror 505, an illumination condenser lens 506, a measuring objective lens 507, a compensation plate 508, and an imaging objective lens 509. The aforementioned second reflecting mirror 208, fogging objective lens 501, fogging viewing plate 502, and white light source 209 are arranged in a second predetermined position within the multifunctional optical inspection instrument of this embodiment, forming a white light source optical path 216 for a second optical path. Similarly, the aforementioned perforated prism 211, projection lens 503, annular reticle 504, conical lens 505, illumination condenser lens 506, and infrared light source 210 can form the infrared light source path 215 of the second optical path. The aforementioned third reflecting mirror 212, measuring lens 507, compensation plate 508, imaging lens 509, and refractive sensor 213 can form the sensor optical path 214 of the second optical path.

[0044] In this scenario, the infrared light source 210 first illuminates the annular reticle 504 in front of it through the illumination condenser lens 506 and the conical lens 505 to form a circular halo. Further, the aforementioned circular halo is transmitted sequentially through the projection lens 503, reflected by the perforated prism 211, transmitted through the second mirror 208, reflected by the first mirror 103, and transmitted through the eyepiece lens 203 before reaching the tested eye 510. Then, it returns via reflection from the retina of the tested eye 510. That is, after passing through the eyepiece lens 203, it is reflected by the first mirror 103 to the second mirror 208. Next, the reflected light passes through the second mirror 208, through the small hole of the perforated prism 211, and is reflected by the third mirror 212. It then passes through the measuring lens 507, the compensation plate 508, and the imaging lens 509 before finally being received by the refractive sensor 213.

[0045] Simultaneously, the white light source 209 illuminates the image on the fogged view panel 502, which is then reflected by the second reflecting mirror 208 to the first reflecting mirror 103 after passing through the fogged objective lens 501. Further, the image is reflected by the first reflecting mirror 103 and transmitted through the eyepiece objective lens 203 to the tested eye 510. Finally, the focusing module is moved back and forth along the optical axis by the focusing assembly 511, so that the circular halo on the refractive sensor 213 is at its clearest, and the fogged image seen by the tested eye 510 is also at its clearest. Then, the refractive power of the tested eye 510 can be obtained by analyzing and calculating the circular image. It is understood that refractive measurements should be performed in a relaxed state of the optic nerve of the tested eye to ensure the accuracy of the refractive power measurement.

[0046] It should be noted that although the operations of the methods of this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all of the operations shown must be performed to achieve the desired result. On the contrary, the steps depicted in the flowchart may be performed in a different order. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0047] It should be understood that when the terms "first," "second," "third," and "fourth," etc., are used in the claims, specification, and drawings of this disclosure, they are used only to distinguish different objects and not to describe a specific order. The terms "comprising" and "including" as used in the specification and claims of this disclosure indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0048] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0049] While the embodiments of this disclosure are described above, the content is merely an example for the purpose of facilitating understanding of this disclosure and is not intended to limit the scope or application scenarios of this disclosure. Any person skilled in the art can make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed herein; however, the patent protection scope of this disclosure shall still be determined by the scope defined in the appended claims.

Claims

1. A multifunctional optical inspection instrument for detecting the eye, comprising: The first optical device group includes at least a front lens barrel assembly and a rear lens barrel assembly, and is arranged in a first predetermined position within the multifunctional optical detector to form a first optical path for imaging the fundus of the eye. The second optical device group is arranged in a second predetermined position within the multifunctional optical detector to form a second optical path for eye refraction. as well as A first reflecting mirror is disposed between the front mirror assembly and the rear mirror assembly and is movable relative to a preset optical path conversion position, so as to convert the working optical path of the multifunctional optical inspection instrument into a corresponding first optical path or second optical path. During the movement relative to the preset optical path conversion position, the first reflector is configured as follows: When it moves to the preset optical path conversion position, it blocks the light entering the multifunctional optical detector from propagating along the first optical path, so as to convert the working optical path into the second optical path; or When it moves out of the preset optical path conversion position, the obstruction to the first optical path is released, allowing the light entering the multifunctional optical detector to propagate along the first optical path, so as to convert the working optical path into the first optical path. The preset optical path conversion position is on the same axis as the front lens assembly and the rear lens assembly. The front lens assembly includes at least an objective eyepiece, and the rear lens assembly includes at least a fundus illumination source, a fundus camera assembly, a fundus beam splitter, and a fundus receiver detector. The objective eyepiece, fundus illumination source, fundus camera assembly, fundus beam splitter, and fundus receiver detector are arranged in a first predetermined position within the multifunctional optical detector to form a first optical path for imaging the fundus of the eye.

2. The multifunctional optical inspection instrument according to claim 1, wherein the second optical device group and the first optical device group include the same object eyepiece.

3. The multifunctional optical detector according to claim 2, wherein the second optical device group further includes at least a second reflector, a white light source, an infrared light source, a perforated prism, a third reflector, and a refractive sensor, and the object eyepiece, the second reflector, the white light source, the infrared light source, the perforated prism, the third reflector, and the refractive sensor are arranged in a second predetermined position within the multifunctional optical detector to form a second optical path for refraction of the eye.

4. The multifunctional optical detector according to claim 3, wherein the second optical path includes a sensor optical path, an infrared light source optical path, and a white light source optical path, and the white light source optical path is formed at least via the second reflector and the white light source, the infrared light source optical path is formed at least via the perforated prism and the infrared light source, and the sensor optical path is formed at least via the third reflector and the refractive sensor.

5. The multifunctional optical detector according to claim 4, wherein the second reflector and the white light source optical path, the perforated prism and the infrared light source, and the third reflector and the refractive sensor are respectively located in the same horizontal direction.

6. The multifunctional optical inspection instrument according to claim 4, wherein the second reflecting mirror, the perforated prism, and the third reflecting mirror are in the same vertical direction.

7. The multifunctional optical inspection instrument according to claim 4, wherein the first reflecting mirror and the second reflecting mirror are in the same vertical direction, and when it is moved into the preset optical path conversion position, the first reflecting mirror is configured as follows: The infrared light source is reflected, at least through the second reflector, onto the eyepiece to illuminate the eye. The light reflected from the eye is reflected by the eyepiece to the second mirror, and then reaches the refractive sensor via at least the second mirror, the perforated prism, and the third mirror; as well as The white light source is reflected at least through the second mirror to the eyepiece to illuminate the eye, so as to convert the working optical path of the multifunctional optical detector into the second optical path.

Images