CN218391060U

CN218391060U - Self-help comprehensive optometry instrument

Info

Publication number: CN218391060U
Application number: CN202222156484.1U
Authority: CN
Inventors: 张亚欣; 封康
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-01-31
Anticipated expiration: 2032-08-16

Abstract

The application relates to the field of ophthalmic optometry equipment, in particular to a self-service comprehensive optometry unit. This approach does not allow the patient to perform an optometry with both eyes relaxed, thereby affecting the accuracy of the optometry results. In order to solve the above technical problem, the following solutions are proposed. The utility model provides a self-service refractometer that synthesizes, including the lens group, image transmitter, plane of projection and control panel, control panel is located inspection seat one side, the lens group is located patient's vertex of a head with image transmitter, the light source sees through the lens group and makes image projection to the place ahead plane of projection on, the image on the plane of projection is directly watched to the patient, according to the visual sensation of oneself, through independently operating control panel, the camera lens of different degrees is changed to the drive lens group to adjust the definition of projected image, obtain more accurate optometry result with this.

Description

Self-help comprehensive optometry instrument

Technical Field

The application relates to the field of ophthalmic optometry equipment, in particular to a self-service comprehensive optometry unit.

Background

Optometry is an important examination in the field of ophthalmic refractive correction, where the fitting of an applied lens to a patient is evaluated by specific instruments and the patient's own visual perception. At present, optometry is mainly divided into objective optometry and subjective optometry. Carry out objective optometry earlier, obtain the objective refractive state of patient through instrument detection, provide the data basis for subsequent subjective optometry, carry out subjective optometry again, synthesize the impression of patient itself and join in marriage the lens, reach and provide clear, lasting and comfortable visual experience's effect for the patient.

The subjective refraction is usually performed by a comprehensive refractometer, which is disclosed in the prior patent with the publication number of CN 201609359U.

However, in the subjective refraction process of the above phoropter, the lens is positioned in front of the eyes of the patient, which may cause involuntary near-sensing accommodation of both eyes of the patient and ciliary muscle contraction. The near sensing adjustment cannot be eliminated even by a fog-vision means, so that the patient cannot perform optometry under the condition of relaxing two eyes, and the accuracy of an optometry result is influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve because of the too near inaccurate problem of optometry result that leads to of camera lens distance eyes, this application provides a self-service refractometer that synthesizes.

The application provides a self-service refractometer that synthesizes adopts following technical scheme:

the utility model provides a self-service refractometer that synthesizes, includes lens group, image emitter, plane of projection, control box and camera lens conversion equipment, lens group, image emitter and camera lens conversion equipment all set up in the control box, it has the light trap to open on the control box, the lens group be located the image emitter with between the plane of projection, the image is launched to the image emitter, and the light source sees through the lens group reaches image behind the light trap on the plane of projection, the image on the plane of projection is used for the patient to watch, camera lens conversion equipment is used for adjusting the printing opacity number of degrees of lens group.

Through adopting above-mentioned technical scheme, when carrying out the visual acuity examination, the patient and projection plane keep a certain distance apart, adopt the mode of projection to simulate the people's eye refraction, and the image on the projection plane is watched to the patient's bore hole. The definition of images on the projection surface is changed by adjusting the light transmission degree of the lens group, so that the purpose of optometry is achieved. Because the eyes of the patient are far away from the projection plane, the patient can perform optometry under the condition of relaxing the eyes. Thereby making the optometry result more accurate.

Optionally, the projection surface is a curtain, and the curtain is vertically arranged.

Through adopting above-mentioned technical scheme, the curtain makes the projection image more clear, is convenient for remove simultaneously and accomodates. And the curtain is vertical setting, and the patient of being convenient for looks the place ahead of visualing.

Optionally, the self-service refractometer that synthesizes still includes the inspection seat, the lens group with image transmitter all is located directly over the inspection seat.

Through adopting above-mentioned technical scheme, the patient sits on the inspection seat when inspection eyesight, and the lens group all is located patient head top with the image transmitter this moment for the projection face imaging position is located patient dead ahead, and the patient of being more convenient for watches.

Optionally, the control panel is connected to the examination seat, the control panel is used for the patient to operate, and the control panel is electrically connected to the lens conversion device.

Through adopting above-mentioned technical scheme, can be felt according to self by the patient oneself and come from the autonomous operation control panel, adjust the transmittance of lens group for the optometry result accords with patient's vision more and experiences, has reduced the optometry error.

Optionally, one side of inspection seat is connected with the expansion plate, the expansion plate can be followed vertically and stretched out and drawn back, control panel's one end with it is connected with the axis of rotation to rotate between the top of expansion plate, the axis of rotation is the level setting.

Through adopting above-mentioned technical scheme, rotate control panel to vertical direction, can supply the patient to pass in and out the seat, simultaneously, control panel descends along with the expansion plate to accomodate control panel to one side of inspection seat handrail.

Optionally, a holding groove is formed in the top of the armrest on one side of the inspection seat, and the expansion plate is mounted in the holding groove.

Through adopting above-mentioned technical scheme, when control panel did not use, the holding tank was used for accomodating control panel, had reduced control panel's occupation space, made the dust difficult pile up on control panel simultaneously.

Optionally, the retractable plate includes a fixed plate and a sliding plate, the fixed plate and the sliding plate are both vertically disposed, the fixed plate is fixed in the accommodating groove, the sliding plate is slidably connected to the fixed plate, and the top end of the sliding plate is connected to the rotating shaft.

By adopting the technical scheme, the sliding plate and the fixed plate are matched to realize the telescopic function of the telescopic plate.

Optionally, the sliding plate is rotatably connected with a roller, the fixed plate is provided with a vertical chute, and the chute allows the roller to roll up and down.

Through adopting above-mentioned technical scheme, the cooperation of gyro wheel and spout makes taking and accomodate of control panel more convenient.

Optionally, one end of the control panel, which is far away from the rotating shaft, is connected with a limiting plate, and the limiting plate is used for plugging a top notch of the accommodating groove.

Through adopting above-mentioned technical scheme, the limiting plate is convenient for control panel on the one hand to get and put, and on the other hand can make and is difficult for piling up the dust in the holding tank.

Optionally, one side of the limiting plate, which is close to the control panel, is connected with a rubber pad.

Through adopting above-mentioned technical scheme, the rubber pad has played the buffering effect when control panel slides in the holding tank, makes spacing difficult collision damage.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through lens group, image emitter, plane of projection and camera lens conversion equipment mutually supporting, adopt the eye refraction of projected mode simulation, because patient's eyes are far away from the plane of projection for the patient can carry out the optometry under the condition that eyes relax, and the optometry result that obtains is more accurate.

2. The lens is driven to be switched by the patient to autonomously operate the control panel, so that the optometry result is more in line with the visual experience of the patient, and the optometry error is further reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of a self-service phoropter according to embodiment 1 of the present application;

fig. 2 is a schematic view of the principle of operation of the self-service phoropter of embodiment 1 of the present application, in which the direction of an arrow indicates the projection path of an image;

fig. 3 is a schematic structural diagram of a control panel, a rotating shaft and a telescopic plate assembly in embodiment 1 of the present application;

description of reference numerals: 1. a lens group; 2. an image emitter; 3. a projection surface; 4. inspecting the seat; 5. a control box; 501. a light-transmitting hole; 6. a control panel; 7. a retractable plate; 701. a fixing plate; 702. a sliding plate; 8. a rotating shaft; 9. accommodating grooves; 10. a roller; 11. a chute; 12. a limiting plate; 13. a rubber pad; 14. a human eye; 15. the retina.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses self-service refractometer that synthesizes.

Example 1

Referring to fig. 1, the self-service comprehensive optometry unit comprises an inspection seat 4 and a control box 5, wherein the control box 5 is fixedly connected to the top of the inspection seat 4.

Referring to fig. 1 and 2, a lens group 1, an image emitter 2, and a lens conversion device are disposed in a control box 5, and a light hole 501 is formed in a surface of the control box 5 opposite to the lens group 1. The projection plane 3 is located approximately 5m from the inspection seat 4 and is disposed opposite the inspection seat 4. Indoor wall or the great vertical smooth surface of arbitrary size all can act as projection face 3, in order to reach better projection effect and be convenient for daily accomodating, projection face 3 can prefer the curtain for use. A space for a patient to sit is reserved between the control box 5 and the examination seat 4, a control panel 6 is arranged on an armrest on one side of the examination seat 4, and the control panel 6 is electrically connected with the lens conversion device and used for adjusting the light transmission degree of the lens group 1.

Referring to fig. 2, in performing an optometry, the image emitter 1 is used as a light source to emit an image, the light source is imaged on the curtain through the lens group 1, and the image is imaged on the retina 15 through the human eyes 14 by reflection of the curtain. The patient is apart from the curtain certain distance, and the image on the curtain is watched to the bore hole, experiences according to the vision of self, and from the control panel 6 of independently operating adjusts the light transmittance of lens group, and until eyes can watch clear image under the circumstances that keeps comfortable visual sensation to reach the purpose of optometry.

Referring to fig. 1 and 3, a telescopic plate 7 is connected between the examination seat 4 and the control panel 6, the telescopic plate 7 can enable the control panel 6 to move vertically, a rotating shaft 8 used for being connected with the control panel 6 is arranged at the top end of the telescopic plate 7, the control panel 6 can rotate around the rotating shaft 8, and when the control panel 6 rotates to a horizontal position, the control panel 6 can be kept stable at the horizontal position under the support of an armrest on one side of the examination seat 4, so that a patient can operate the control panel 6 conveniently.

Holding tank 9 has been seted up at the handrail top of inspection seat 4 one side, and expansion plate 7 fixed connection is in holding tank 9 bottom, when control panel 6 rotated to vertical state, can be with control panel 6 income holding tank 9 in.

Referring to fig. 3, in order to easily implement the telescopic function of the telescopic plate 7, the telescopic plate 7 includes a fixed plate 701 and a sliding plate 702, the fixed plate 701 is slidably connected to the sliding plate 702, a sliding slot 11 is formed in a side surface of the fixed plate 701, a roller 10 is connected to a bottom of the sliding plate 702, and the roller 10 rolls up and down in the sliding slot 11 to drive the sliding plate 702 to slide up and down along the fixed plate 701.

Referring to fig. 1 and 3, a limiting plate 12 can be further installed at one end of the control panel 6, which is far away from the rotating shaft 8, the size of the limiting plate 12 is slightly larger than that of a top notch of the accommodating groove 9, so that the control panel 6 is more convenient to take and store, and meanwhile, the limiting plate 12 blocks the notch, so that dust is not easy to accumulate in the accommodating groove 9; one side that limiting plate 12 and control panel 6 meet still installs rubber pad 13, and rubber pad 13 can play the effect of buffering when control panel 6 slides into holding tank 9, makes the difficult collision of spacing and damages.

The self-service comprehensive optometry instrument of this scheme still is provided with the display, prints mouth and switch, and the display can show the lens number of degrees in real time, through printing the mouth output paper version optometry result, carries out the preparation of follow-up lens again according to this optometry result.

The implementation principle of the self-service comprehensive optometry unit in the embodiment of the application is as follows: when carrying out subjective optometry, at about 5 meters distant places apart from inspection seat 4, set up the curtain with 4 relative one sides of inspection seat, optometrist opens the switch of the self-service refractometer that synthesizes, behind the switch on, image emitter 2 is as light source transmission image, light sees through formation of image on the curtain behind lens group 1 and light trap 501, the patient sits on inspection seat 4, the image on the curtain is watched to the bore hole, according to the visual effect of self, self-service operation control panel 6, drive lens group 1 and change the printing opacity number of degrees, still can keep comfortable visual state when the patient watches clear image.

After the patient accomplished the optometry, rotary control panel 6 to vertical direction, control panel 6 this moment is in the coplanar with expansion plate 7, presses control panel 6 downwards, under the cooperation of gyro wheel 10 and spout 11, sliding plate 702 slides downwards along fixed plate 701, until limiting plate 12 laminates in the notch edge at holding tank 9 top, during holding tank 9 was taken in completely with control panel 6 this moment, the patient alright get up and leave inspection seat 4.

At the moment, the power result of the current lens is displayed on a display, the optometrist confirms that the error is not found, then the printed paper result is delivered to the patient, finally, a power switch is turned off, and the whole subjective optometry process is finished.

The method for simulating the refraction of the human eyes in the projection mode eliminates the near perception adjustment generated in the traditional optometry mode, so that the patient can perform optometry under the condition of relaxing two eyes, and a more accurate optometry result is obtained.

In addition, in the conventional optometry, the optometrist usually requires the optometrist to describe his or her visual sensation from the patient by making a query, and then to adjust the power of the lens. Above-mentioned scheme has saved this step that the patient changes said, lets the patient can be directly according to self vision experience self-service optometry, and the result of acquireing optometry can be brought for patient's lasting comfortable vision experience more, also accords with the intention of initiative optometry more.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a self-service refractometer that synthesizes which characterized in that: the image projection device comprises a lens group (1), an image emitter (2), a projection surface (3), a control box (5) and a lens conversion device, wherein the lens group (1), the image emitter (2) and the lens conversion device are all arranged in the control box (5), a light hole (501) is formed in the control box (5), and the lens group (1) is located between the image emitter (2) and the projection surface (3);

the image emitter (2) emits images, a light source sequentially penetrates through the lens group (1) and the light hole (501) to be imaged on the projection surface (3), the images on the projection surface (3) are used for a patient to watch, and the lens conversion device is used for adjusting the light transmittance of the lens group (1).

2. The self-service comprehensive optometry unit of claim 1, wherein: the projection surface (3) is a curtain which is vertically arranged.

3. The self-service comprehensive optometry unit of claim 1, wherein: the camera lens assembly is characterized by further comprising an inspection seat (4), wherein the lens assembly (1) and the image emitter (2) are located right above the inspection seat (4).

4. The self-service comprehensive optometry unit of claim 3, wherein: the examination chair (4) is connected with a control panel (6), the control panel (6) is used for a patient to operate, and the control panel (6) is electrically connected with the lens conversion device.

5. The self-service comprehensive optometry unit of claim 4, wherein: one side of inspection seat (4) is connected with expansion plate (7), expansion plate (7) can be followed vertically and stretched out and draw back, the one end of control panel (6) with it is connected with axis of rotation (8) to rotate between the top of expansion plate (7), axis of rotation (8) are the level setting.

6. The self-service comprehensive optometry unit of claim 5, wherein: holding tank (9) have been seted up at the handrail top of inspection seat (4) one side, expansion plate (7) are installed in holding tank (9).

7. The self-service comprehensive optometry unit of claim 6, wherein: the expansion plate (7) comprises a fixed plate (701) and a sliding plate (702), the fixed plate (701) and the sliding plate (702) are both vertically arranged, the fixed plate (701) is fixed in the accommodating groove (9), the sliding plate (702) is connected to the fixed plate (701) in a sliding mode, and the top end of the sliding plate (702) is connected with the rotating shaft (8).

8. The self-service comprehensive optometry unit of claim 7, wherein: the sliding plate (702) is rotatably connected with a roller (10), the fixed plate (701) is provided with a vertical sliding groove (11), and the sliding groove (11) is used for the roller (10) to roll up and down.

9. The self-service comprehensive optometry unit of claim 6, wherein: one end, far away from axis of rotation (8), of control panel (6) is connected with limiting plate (12), limiting plate (12) are used for the shutoff the top notch of holding tank (9).

10. The self-service comprehensive optometry unit of claim 9, wherein: one side of the limiting plate (12) close to the control panel (6) is connected with a rubber pad (13).