Intelligent homing type lens box

Abstract

An intelligent homing type lens box comprises: a box body, which is internally provided with a chamber, and any side of which is provided with a lens recovery port; the try-on lens box is arranged on any side of the box body, and a plurality of lens grooves for accommodating lenses are formed in the try-on lens box; the feeding track is arranged in the cavity, and the feeding track is provided with an inlet end communicated with the lens recovery opening and a detection end used for positioning a to-be-returned lens; the detection mechanism is used for detecting parameters of the to-be-homed lens and is arranged corresponding to the detection end; and the sorting mechanism is used for transferring the to-be-homed lenses into the lens grooves matched with the parameters of the to-be-homed lenses in the try-on lens box based on the detection information acquired by the detection mechanism. According to the utility model, full-automatic identification and homing of the try-on lenses can be realized, manual searching for storage positions and degree comparison are not needed, and the sorting time is remarkably saved. The workflow automation degree of an optometry consulting room can be remarkably improved, non-diagnosis and treatment labor is reduced, and doctors can put more energy into clinical examination and analysis.

Description

TECHNICAL FIELD

[0001] The utility model relates to visual light equipment field, concretely relates to a kind of intelligent homing lens case. BACKGROUND

[0002] In ophthalmic hospital and optometry clinic, optometrists need to use a large number of trial lenses (including spherical, cylindrical, prism, etc.) to perform refraction examination on different patients in the daily refraction process. To ensure the accuracy of refraction, trial lenses are usually subdivided by degrees and numerous in quantity, and are used frequently.

[0003] Currently, the conventional lens case mainly relies on manual lens taking and homing. The physician needs to find the target lens from the lens case before refraction, and then put the lens back to its original position after refraction. Due to the large number of lens types, small degree interval and dense label, manual searching and homing operation not only consumes time and effort, but also easily causes lens misplacement, degree homing error or lens omission, etc. Such errors not only reduce work efficiency, but also may affect the accuracy of subsequent patient refraction.

[0004] In hospitals with large number of outpatients, optometrists may need to handle nearly a thousand trial lenses every day. Manual sorting and homing is a high-frequency, repetitive and low-tech labor, which greatly consumes the energy of the physician and prolongs the waiting time of the patient, becoming an important bottleneck restricting clinical efficiency.

[0005] Currently, some researches or products have tried to realize intelligent lens taking function, such as through electric ejection structure or RFID identification to realize "automatic lens taking". However, such devices only solve the automation problem of "taking out" lens, and still completely rely on manual operation for the more complicated "homing" link of lens. At present, there is no systematic solution that can realize automatic identification, automatic transmission and automatic classification and homing of lens.

[0006] The existing trial lens case is generally manually managed, usually stored in multiple card slots or drawer type slots corresponding to different degrees, and the physician needs to manually homing after use. However, in a busy clinical environment, the physician may need to change nearly a thousand lenses of different degrees every day, and it is not only time-consuming and laborious to compare degrees and homing one by one after use, but also prone to errors. Lens misplacement, omission or mixing will cause difficulty in finding later use, and may even affect the efficiency and accuracy of refraction.

[0007] Currently, some institutions have tried to optimize the traditional lens case. For example:

[0008] 1. Numbered or color-coded lens case: add numbers or color labels on lenses or lens slots to facilitate manual quick positioning. However, this method still relies on manual identification and operation, and cannot realize automatic classification.

[0009] Such lens boxes are usually composed of multiple card slots arranged by spherical power, cylindrical power and axial angle, each card slot is used to place the corresponding parameter of the trial lens. The doctor takes the lens from the corresponding card slot when using it, and then manually puts it back to its original position after use. Structure scheme: the lens box is generally a rectangular structure, which is internally provided with multiple layers or columns of lens card slots; each card slot is marked with degree information (such as +1.00D, -2.50D / 90°, etc.). Working principle: doctor manually reads lens degree → finds corresponding card slot → manually returns to position.

[0010] Its problems are: ① complete dependence on manual operation, low efficiency; ② large number of lenses, dense degrees, easy to misplace; ③ lens return disorder will affect the next use; ④ long-term operation has high labor intensity, affecting the clinical work rhythm.

[0011] 2. Electronic identification storage type lens management box: some studies propose to use RFID (radio frequency identification) or barcode technology, add identification tags to the lenses, and set read-write modules in the lens box to record the information of the lenses in and out of the warehouse. However, this type of scheme is mainly used for information management and tracking, and does not realize the physical return action of the lens.

[0012] This type of product needs to add electronic tags (RFID chips or barcodes) to each trial lens, and set read-write modules in the lens box to automatically identify the in-out status of the lens. Structure scheme: each lens is pasted or embedded with an RFID tag; the lens box is internally provided with an RFID antenna module, a control circuit and a display screen; the system is connected with a computer or a mobile terminal to realize informationization of lens management. Working principle: when the lens is put in or taken out, the RFID module identifies the lens ID → the system records the in-out information → updates the database. Problems: ① this type of system can only realize information identification and recording, and cannot realize the physical return of the lens; ② the identification device is high in cost, and the lens tag is easy to be damaged; ③ the doctor or assistant still needs to manually return the lens, which does not really reduce the labor intensity.

[0013] The above lens boxes still have the following obvious deficiencies in actual clinical application:

[0014] 1. Strong dependence on manual operation, low work efficiency: the current mainstream lens boxes all need the doctor or assistant to manually compare and return according to the degree label of the lens. In high-intensity outpatient work, each doctor may use nearly a thousand lenses of different degrees every day, and manually returning one by one takes a long time, which seriously occupies the diagnosis and treatment time.

[0015] 2. prone to homing error or lens loss: during the artificial homing process, it is easy to put the lens in the wrong slot or miss it due to fatigue, distraction or light. Misplacement will lead to subsequent difficulties in finding, and even affect the accuracy of refraction, increase management cost.

[0016] 3. Existing electronic identification technology is limited to information level and cannot achieve physical homing: some improved lens boxes use RFID or barcode identification to record lens warehouse information, but they cannot automatically sort or homing lenses. Doctors still need to manually put the lens back to the specified location, and the system only records and cannot substantially reduce labor.

[0017] Therefore, it is urgent to develop an intelligent lens box that can automatically homing the trial lens. The device should be able to accurately transmit the lens information to the corresponding storage location through automatic identification, thereby replacing the heavy manual sorting work. The implementation of such a system will significantly improve the automation level of the visual diagnosis and treatment process, reduce human error, and improve clinic efficiency. It has important clinical application value and promotion significance in the field of ophthalmology. Content of the utility model

[0018] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an intelligent homing lens box.

[0019] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0020] An intelligent homing lens box comprises:

[0021] The box body is internally provided with a chamber, and any side thereof is provided with a lens recycling port;

[0022] The trial lens box provided on any side of the box body is internally provided with a plurality of lens grooves for accommodating lenses;

[0023] The feeding track is provided in the chamber, and the feeding track has an inlet end communicated with the lens recycling port and a detection end for positioning the lens to be homed;

[0024] The detection mechanism for detecting the parameters of the lens to be homed is arranged corresponding to the detection end;

[0025] The sorting mechanism moves the lens to be homed into the lens groove in the trial lens box matched with the parameters thereof based on the detection information obtained by the detection mechanism.

[0026] The detection mechanism comprises an identification unit for identifying the identification mark attached to the lens to be homed, and the identification mark is associated with the information of the lens to be homed.

[0027] The sorting mechanism comprises a conveying component movable within the chamber, the conveying component having a gripping portion for picking up or releasing the lens to be homed.

[0028] The conveying component comprises:

[0029] An X-direction moving mechanism for driving the gripping portion to move along a first horizontal direction;

[0030] A Y-direction moving mechanism disposed on the X-direction moving mechanism for driving the gripping portion to move along a second horizontal direction, the first horizontal direction intersecting the second horizontal direction;

[0031] A Z-direction moving mechanism disposed on the Y-direction moving mechanism for driving the gripping portion to move along a vertical direction;

[0032] A flipping mechanism disposed on the Z-direction moving mechanism for driving the gripping portion to switch between a horizontal posture and a vertical posture.

[0033] The trial lens case is located at the top of the case body, and the bottom of the lens slot is provided with a sealable door.

[0034] The door comprises at least one door piece mounted on the bottom of the lens slot through a hinge shaft, and an elastic return member is arranged on the hinge shaft to keep the door piece closed; the door piece is configured to rotate around the hinge shaft when subjected to pressure in the direction towards the inside of the lens slot, thereby opening an opening for the sorting mechanism to operate.

[0035] The feeding track extends downwardly from the lens recycling opening to the detection end, and guide side walls are arranged on both sides of the feeding track.

[0036] A cover is arranged above the feeding track, and an end of the cover is provided with a height limiting plate, and a gap is formed between the height limiting plate and the feeding track for a single lens to be homed to pass through.

[0037] The detection end is further provided with a lifting mechanism for lifting the lens to be homed.

[0038] The detection mechanism is further configured to detect a current placement angle of the lens to be homed on a horizontal plane; the lifting mechanism further comprises a rotating platform for carrying and driving the lens to be homed to rotate around a vertical axis; the rotating platform is configured to rotate around the vertical axis according to the current placement angle, so as to adjust the lens to be homed to a target angle.

[0039] The utility model discloses a beneficial effect: the utility model discloses can realize to the full -automatic identification of trying on lens and homing, need not manual search storage, compare the degree, save the arrangement time obviously. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is the structure schematic drawing of the utility model.

[0041] Figure 2 It is the box internal structure schematic drawing of the utility model.

[0042] Figure 3 It is the partial explosion schematic drawing of the utility model.

[0043] Figure 4 It is the section schematic drawing of the utility model.

[0044] Figure 5 It is the plan view of the utility model.

[0045] Figure 6 It is the cooperation schematic drawing of the utility model's clamping portion and lens slot. DETAILED DESCRIPTION

[0046] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor belong to the range of the utility model protection.

[0047] It should be noted that all the directionality indication (such as up, down, left, right, front, back...) in the utility model embodiment is only used to explain the relative position relationship, movement condition etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.

[0048] For example, Figure 1As shown, the utility model discloses a kind of intelligent homing lens boxes, it includes box 100, chamber 120 is equipped in box 100, feed track 300 is arranged in chamber 120, detection mechanism 500 and sorting mechanism 600, while the arbitrary side of box is set up trial lens box 200, wherein trial lens box 200 is fixedly connected with box, wherein feed track is used to recycle lens after trying, and lens to be homed enters into chamber via feed track, and its parameters are detected via detection mechanism, then using sorting mechanism will be homed lens sent to the lens groove of the parameter corresponding trial lens box, realize the full-automatic homing of trial lens, and can be automatically homed according to its own parameters corresponding position, facilitate subsequent use.

[0049] Trial Lens mentioned in the application refers to replaceable optical lens used for detecting the refractive state of patient in medical refraction process. According to optical properties, it is divided into spherical lens (used for correcting myopia or hyperopia) and cylindrical lens (used for correcting astigmatism). Each piece of trial lens has a specific diopter (D) and axial angle (°), and in order to facilitate taking, a hand holding part is arranged on each piece of trial lens. Lens Repositioning refers to the process of putting lens back to its original corresponding degree groove position or storage position after using trial lens. Intelligent Repositioning refers to the process of automatically transporting lens to target groove position after automatically identifying lens parameters by system.

[0050] The arbitrary side of box 100 is provided with lens recycling port 110, which is mainly used for putting lens to be homed, and its size is slightly larger. In the embodiment, it is arranged on the side wall of box, and in some embodiments, it can also be arranged on the upper side of box. Figure 2 As shown, the chamber is divided into two independent spaces, and the two are communicated via a through hole, which corresponds to the detection end. The clamping part controlled by sorting mechanism can enter the left side via the through hole and clamp the lens located at the detection end.

[0051] Trial lens box 200 is provided with a plurality of lens grooves 210 for accommodating lens. Each lens groove is matched with the size of lens, and in order to ensure that lens can be reliably fixed in lens groove, magnetic member is arranged in lens groove in the embodiment. Meanwhile, metal member corresponding to lens is arranged in magnetic attraction cooperation with magnetic member, and the two can also be arranged reversely, that is, metal member is arranged in lens groove, and magnetic member is arranged on corresponding position of lens, or both use magnetic member, to realize that lens is reliably fixed in lens groove by magnetic attraction cooperation.

[0052] As shown, Figure 5As shown, the feeding track 300 is arranged in the chamber 120, and has an inlet end 310 communicating with the lens recycling port 110 and a detection end 320 for positioning the lens to be returned, which is mainly used for conveying the lens placed in the lens recycling port to the detection end. The feeding track 300 extends downwardly from the lens recycling port 110 to the detection end 320, and is provided with guide side walls 330 on both sides. The guide side walls are sequentially contracted along the length direction of the feeding track, and finally match the size of a single lens. Meanwhile, the upper side of the feeding track 300 is provided with a cover 130, as shown in Figure 3 As shown, the end of the cover 130 is provided with a height limiting plate 131, and a gap is formed between the height limiting plate 131 and the feeding track 300 for a single lens to be returned 700. In this way, the lenses can be ensured to enter the detection end one by one, and the phenomenon of stacking or jamming caused by multiple lenses placed in the lens recycling port can be avoided.

[0053] Meanwhile, in order to facilitate the transfer of the lens from the lens recycling port to the inside, the front section of the feeding track can be arranged as a conveyor belt, and the lens can be conveyed to the inclined section by the conveyor belt, and then moved downwardly along the inclined section to the detection end by the gravity of the lens itself. In some embodiments, the entire feeding track can be directly arranged as an inclination, so that the lens can directly slide down. In this way, the design of the conveyor belt can be omitted.

[0054] The detection mechanism 500 for detecting the parameters of the lens to be returned 700 is arranged corresponding to the detection end, which is mainly used for detecting the parameters of the lens, and can also take a picture of the shape of the lens to obtain the image of the entire lens. The detection mechanism 500 includes an identification unit for identifying the identification mark on the lens to be returned 700. The identification unit can be an image recognition module, such as a camera, and the recommended resolution is ≥ 1920×1080 (1080p). The pixel size and the imaging device are selected to be at least 50-100 pixels per millimeter under the actual lens size (i.e. 0.01-0.02 mm / pixel level is not necessary, but the clear outline is ensured), and the identification mark is associated with the information of the lens to be returned 700. The information includes the lens power, the lens type and other information. The information can be directly stored in the form of RFID tag, two-dimensional code and the like, and the identification unit directly obtains the parameters of the current lens by scanning or reading the two-dimensional code or tag. Meanwhile, the angle of the current lens on the horizontal plane, i.e. the angle of the hand-held part, can also be obtained by shooting.

[0055] Meanwhile, a ring-shaped light illumination system is arranged circumferentially around the camera to provide the light source when the camera is shooting. As for the image acquisition, a photoelectric sensor is used to identify whether the lens enters the detection end.

[0056] As shown in Figure 4As shown, the sorting mechanism 600 moves the lens to be returned to the lens slot in the lens box that matches the parameters of the lens based on the detection information obtained by the detection mechanism 500.

[0057] In this embodiment, the sorting mechanism 600 includes a conveying component that can move in the chamber, and the conveying component has a clamping part 630 for picking up or releasing the lens to be returned.

[0058] The conveying component includes:

[0059] An X-direction moving mechanism 610 is configured to drive the clamping part to move in a first horizontal direction;

[0060] A Y-direction moving mechanism 620 is disposed on the X-direction moving mechanism 610 and configured to drive the clamping part 630 to move in a second horizontal direction, and the first horizontal direction intersects the second horizontal direction;

[0061] A Z-direction moving mechanism 640 is disposed on the Y-direction moving mechanism 620 and configured to drive the clamping part 630 to move in a vertical direction;

[0062] A flipping mechanism 650 is disposed on the Z-direction moving mechanism 640 and configured to drive the clamping part 630 to switch between a horizontal posture and a vertical posture.

[0063] Each moving mechanism in this embodiment is provided with a guide rail in the corresponding direction and a driving source, which can be a servo motor, a stepper motor, a linear actuator, or a starting element.

[0064] Each moving mechanism is driven by the driving source to move along the guide rail, thereby realizing movement in the XYZ three directions. In this embodiment, because the lens box 200 is disposed above the box, the flipping mechanism realizes the switching of the clamping part between the horizontal posture and the vertical posture, and realizes the conveying of the lens from the feeding track to the corresponding lens slot. In the vertical posture, the clamping part is moved upward by the Z-direction moving mechanism and inserted into the lens slot from the bottom of the lens slot, and after the lens is attracted by magnetic force, the clamping part is removed by being loosened.

[0065] The clamping part includes two oppositely disposed clamping jaws 660 that can move relative to each other to realize the clamping or loosening action.

[0066] The clamping part is rotatably disposed on a support seat through a rotating shaft, and the support seat is fixedly disposed on the Z-direction moving mechanism. Any side of the support seat is provided with a rotating motor coaxially disposed with the clamping part, which is configured to drive the clamping part to rotate relative to the rotating shaft. The driving sources and the rotating motor are not shown in the figure.

[0067] In other embodiments, the sorting mechanism can also adopt:

[0068] Conveyor belt sorting system: after the lens is put in, it is transported by the belt, and the lens is pushed into the corresponding slot by a mechanical push rod or an air flow guide device;

[0069] Chute gravity sorting structure: the lens automatically enters the chute with different inclination angles according to the identification signal, and slides into the target slot by gravity;

[0070] Mechanical arm grabbing system: a small mechanical arm or a suction cup device is used to grab the lens and return it to the original position;

[0071] Rotary turret distribution structure: the lens is automatically thrown into the specified slot by a multi-station rotary turret.

[0072] As shown in Figure 6 The lens box 200 is located at the top of the box body 100, and the bottom of the lens slot 210 is provided with a sealable door.

[0073] The door includes at least one door piece 211 mounted on the bottom of the lens slot 210 through a hinge shaft, and an elastic return member 212 is arranged on the hinge shaft to keep the door piece 211 closed. The door piece 211 is configured to rotate around the hinge shaft when subjected to pressure in the direction of the inside of the lens slot 210, thereby opening an opening for the sorting mechanism 600 to operate.

[0074] That is, when the clamping part moves upward to clamp the lens, it acts on the door piece and drives it to rotate relatively, so that the clamping part enters the lens slot. After moving to the position, the lens is magnetically attracted, at which time the clamping part is released and moves downward. After moving out of the lens slot, the door piece is flipped downward and closes the bottom of the lens slot due to the release of the pressure on the door piece and the resetting of the return member. The one-way movement design of the door piece can ensure that the lens is supported by the door even if it falls due to vibration, so that the lens is always kept in the lens slot.

[0075] In order to further grab the lens, the detection end is also provided with a lifting mechanism 400 for lifting the lens to be returned to the original position. When the lifting mechanism is in the initial position, it is flush with the end of the feeding track, and it is arranged at the detection end. Therefore, when the lens is sent to the detection end, it is located on the upper side of the lifting mechanism, and then the lifting mechanism can lift it, which is convenient for the detection mechanism to read information and take pictures, and makes the lens and the clamping part located on the same plane, so that the horizontal movement of the clamping part can clamp the lens.

[0076] And because the lens is provided with a hand-held part, the lens is non-standard circle, in order to ensure that its hand-held part is always set in the lens slot, the detection mechanism 500 is also configured to detect the current angle of the lens 700 in the horizontal plane; The lifting mechanism 400 further comprises a rotating platform for carrying and driving the lens 700 to rotate around the vertical axis; The rotating platform is configured to rotate around the vertical axis according to the current angle, so as to adjust the lens 700 to the target angle. The lifting mechanism adopts a pneumatic cylinder, and the rotating platform is arranged above the lifting mechanism and driven to rotate by a rotating motor, thereby adjusting the angle of the lens located thereon.

[0077] The angle of the hand-held part can be obtained by finding the angle between the center point of the lens and the axis of the hand-held part and the center point and the standard line. The rotating platform is controlled to rotate a certain angle according to the obtained angle.

[0078] Meanwhile, the intelligent homing lens box also integrates a control system, which is configured to have a database recording the corresponding parameters of each lens slot, and can determine the corresponding lens slot according to the parameters of the lens obtained by the detection mechanism, and control the sorting mechanism to send it into the lens slot.

[0079] Meanwhile, in order to facilitate the taking out of the lens, the control system is also provided with an image recognition module for recognizing the angle of the hand-held part of the trial lens, which specifically obtains through the steps of image acquisition, preprocessing, contour extraction, handle direction recognition and angle difference acquisition. The image acquisition is obtained by a camera, and the obtained image is preprocessed, such as denoising, gray scale conversion, binary processing and morphological processing, so as to obtain the processed image, which is as follows:

[0080] Denoising uses Gaussian filter to remove high-frequency noise.

[0081] Gray scale conversion, if it is a color image, it is converted to a gray scale image by using a standard brightness weighting method.

[0082] Histogram equalization, if the light is uneven, adaptive histogram equalization can be used to enhance the contrast and avoid excessive enhancement leading to noise.

[0083] Binary, first of all, Otsu adaptive threshold method is used to obtain global threshold; If the background or light is stable, a fixed threshold (such as gray value 120-140, depending on the lighting) can also be used.

[0084] If the background is uneven, it is recommended to use local adaptive binary.

[0085] Morphological processing

[0086] First, use the closing operation (dilation and then corrosion) to fill small cavities, kernel = 3x3 or 5x5.

[0087] Then apply opening operation (dilation after erosion) to remove isolated small noise points.

[0088] If needed, apply median filter to remove spike noise.

[0089] If the contour is not obvious, perform Canny edge detection (low threshold 50, high threshold 150, or adjust according to image characteristics) in parallel to assist contour extraction.

[0090] Then obtain the pre-processed lens binary image; use a contour retrieval algorithm (such as RETR_EXTERNAL mode) to extract all external contours in the image; filter out noise and small interference contours based on a preset area threshold (for example, 1%-3%) dynamically set according to the nominal projection pixel area of the lens; from the remaining contours, select the contour with the largest area as the main contour of the lens; if there are multiple contours with similar areas, further filter them by combining the roundness index of the contours.

[0091] Calculate the minimum bounding rectangle of the main contour of the lens to obtain the center point coordinates, length and width dimensions, and rotation angle a;

[0092] Since the main body of the lens is approximately circular and the handle part forms a local protrusion, the long axis direction of the minimum bounding rectangle will be deflected due to the influence of the handle, so the long axis direction is used as the initial estimate of the handle direction θ1;

[0093] Define an image coordinate system, and convert the rotation angle a to an angle value θ1 in this coordinate system according to the specifications of the computer vision library used, with the range mapped to [0°, 360°).

[0094] Calculate the centroid of the main contour of the lens;

[0095] Calculate the vector lengths L1 and L2 from the centroid to the endpoints of the long axis of the minimum bounding rectangle;

[0096] Calculate the length ratio R = max(L1, L2) / min(L1, L2);

[0097] If the ratio R is greater than a first threshold value (for example, 1.2), it is determined that the direction estimate is reliable, and the direction pointed by the longer vector is the final handle direction θ_final;

[0098] If the ratio R is less than a second threshold value (for example, 1.05), it is determined that the contour is close to symmetric, the initial direction estimate is uncertain, and a backup recognition strategy is triggered, which includes at least one of the following: analyzing the contour hull to find the largest indentation or protrusion angle; performing local template matching in the suspected direction interval; or marking as a failed recognition and invoking a review process.

[0099] Set target handle orientation angle θ_target (e.g. 180°, corresponding to handle pointing left);

[0100] Calculate initial angle difference Δθ_0 = θ_target - θ_final;

[0101] Normalize Δθ_0 to the interval [-180°, 180°) to obtain normalized angle difference Δθ, with the rule:

[0102] If Δθ_0 > 180°, then Δθ = Δθ_0 - 360°;

[0103] If Δθ_0 < -180°, then Δθ = Δθ_0 + 360°;

[0104] Otherwise, Δθ = Δθ_0.

[0105] This normalization process ensures that the rotation path is the shortest arc length path.

[0106] Set angle dead zone threshold θ_deadzone, which is determined according to the accuracy of the rotation motor and the system allowed error (e.g. 0.2°-1°);

[0107] Determine if |Δθ| ≤ θ_deadzone, then determine that the current orientation of the lens is within the allowed error range, no rotation is needed, and the subsequent process is executed directly; otherwise, generate a rotation control command to control the rotation platform to perform a Δθ angle rotation.

[0108] In the above manner, the position of each test lens can be accurately adjusted, and the hand-held part of the test lens after homing is always set to face upwards, facilitating subsequent picking.

[0109] In some embodiments, to adapt to the hospital flow environment, an openable lid 220 is provided on the test lens box 200, which is used to protect the lenses when closed, and an ultraviolet lamp 221 is provided on the lid, which is used to kill and sterilize the lenses by controlling its opening and closing.

[0110] To adapt to low temperature environment, heating strips can be provided on the gaps between the lens slots, which can heat the lenses in winter when the temperature is low, thereby avoiding fogging and affecting the test effect.

[0111] The embodiments should not be considered as limiting the utility model, but any improvement based on the spirit of the utility model should be within the protection scope of the utility model.

Claims

1. An intelligent homing lens case, characterized in that: It includes: A box (100) with a chamber (120) inside, and a lens recycling port (110) on any side of the box; A trial lens box (200) on any side of the box (100), with a plurality of lens slots (210) for accommodating lenses inside; A feeding track (300) in the chamber (120), the feeding track (300) has an inlet end (310) communicating with the lens recycling port (110) and a detection end (320) for positioning the lens to be returned; A detection mechanism (500) for detecting the parameters of the lens to be returned (700), which is provided corresponding to the detection end; A sorting mechanism (600) based on the detection information obtained by the detection mechanism (500) to move the lens to be returned to the lens slot in the trial lens box that matches its parameters.

2. The smart-homing lens case of claim 1, wherein: The detection mechanism (500) includes an identification unit for identifying the identification mark attached to the lens to be returned (700), and the identification mark is associated with the information of the lens to be returned (700).

3. The smart-homing lens case of claim 1, wherein: The sorting mechanism (600) includes a conveying component that can move in the chamber, and the conveying component has a clamping part (630) for picking up or releasing the lens to be returned.

4. The smart-homing lens case of claim 3, wherein: The conveying component includes: An X-direction moving mechanism (610) for driving the clamping part to move in a first horizontal direction; A Y-direction moving mechanism (620) provided on the X-direction moving mechanism (610) for driving the clamping part (630) to move in a second horizontal direction, the first horizontal direction intersects the second horizontal direction; A Z-direction moving mechanism (640) provided on the Y-direction moving mechanism (620) for driving the clamping part (630) to move in a vertical direction; A turnover mechanism (650) provided on the Z-direction moving mechanism (640) for driving the clamping part (630) to switch between a horizontal posture and a vertical posture.

5. The smart-homing lens case of claim 1, wherein: The trial lens box (200) is located at the top of the box (100), and the bottom of the lens slot (210) is provided with a sealable door.

6. The smart-homing lens case of claim 5, wherein: The door includes at least one door piece (211) mounted on the bottom of the lens slot (210) through a hinge shaft, and an elastic return member (212) is provided on the hinge shaft to keep the door piece (211) closed; the door piece (211) is configured to rotate around the hinge shaft when subjected to pressure towards the inside of the lens slot (210), thereby opening an opening for the sorting mechanism (600) to operate.

7. The smart-homing lens case of claim 1, wherein: The feeding track (300) extends downwardly from the lens recycling port (110) to the detection end (320) at an angle, and guide side walls (330) are provided on both sides of the feeding track (300).

8. The smart-homing lens case of claim 1 or 7, wherein: A cover (130) is provided above the feeding track (300), and an end of the cover (130) is provided with a height limiting plate (131), and a gap is formed between the height limiting plate (131) and the feeding track (300) for a single lens to be returned (700) to pass through.

9. The smart-homing lens case of claim 1 or 2, wherein: The detection end is further provided with a lifting mechanism (400) for lifting the lens (700) to be homed.

10. The smart-homing lens case of claim 9, wherein: The detection mechanism (500) is further configured to detect a current placement angle of the lens (700) to be homed on a horizontal plane; the lifting mechanism (400) further comprises a rotating platform for carrying and driving the lens (700) to be homed to rotate around a vertical axis; the rotating platform is configured to rotate around the vertical axis according to the current placement angle, so as to adjust the lens (700) to be homed to a target angle.

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