CN216724523U - Multifunctional vision detection device - Google Patents

Multifunctional vision detection device Download PDF

Info

Publication number
CN216724523U
CN216724523U CN202122950684.XU CN202122950684U CN216724523U CN 216724523 U CN216724523 U CN 216724523U CN 202122950684 U CN202122950684 U CN 202122950684U CN 216724523 U CN216724523 U CN 216724523U
Authority
CN
China
Prior art keywords
shell
examination
rotating disc
lens
peephole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122950684.XU
Other languages
Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Baiyang Optometry Technology Co ltd
Original Assignee
Shanghai Baiyang Optometry Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Baiyang Optometry Technology Co ltd filed Critical Shanghai Baiyang Optometry Technology Co ltd
Priority to CN202122950684.XU priority Critical patent/CN216724523U/en
Application granted granted Critical
Publication of CN216724523U publication Critical patent/CN216724523U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Eye Examination Apparatus (AREA)

Abstract

The utility model relates to the field of ophthalmic equipment, in particular to a multifunctional vision detection device, which comprises a shell, a peephole arranged on the shell and an observation hole corresponding to the peephole; the shell on the side of the peephole is provided with a shadow examination fissure device, the projection end of the shadow examination fissure device can face the peephole, and the position and the width of a transmission light shaft of the shadow examination fissure device can be adjusted by the shadow examination fissure device; the shell is internally provided with a fundus detection component, and the projection end of the fundus detection component is arranged on the shell below the peephole; the lens rotating disc is provided with at least a photographic examination lens, a slit lens and an eye fundus lens along the axial center point circumference, and different lenses can be switched on the observation holes in the rotating process of the lens rotating disc. The scheme integrates various ophthalmic detection functions, has comprehensive diagnosis and treatment items, greatly improves the comprehensive diagnosis efficiency of the eye diseases, and has the characteristics of large volume and incapability of comprehensive diagnosis for overcoming the excessive requirements of the conventional examination instrument.

Description

Multifunctional vision detection device
Technical Field
The utility model relates to an ophthalmology equipment field especially relates to a multi-functional eyesight detection device.
Background
The eyes are important perception organs of the body and control the external cognition and other important information, and the incidence of various eye diseases in China is on the rising trend due to the change of living habits such as aging population, wide use of electronic products, improper use of eyes and the like. China is a big country for eye diseases, and the detection rate of the eyesight badness of pupils is 28 percent; the number of patients with cataracts in china will present a significantly rising situation. The cataract detection rate of the old aged over 60 years old accounts for 50 percent. The fundus examination abnormality rates of the people over 60 years old are all higher than 21.39%, namely, one fundus abnormality person exists in every 5 people over 60 years old.
The conventional ophthalmology examination instruments on the market today are ophthalmoscopes for refractive examination, slit lamps for cataract and ocular surface disease examination and ophthalmoscopes for fundus examination, and the three conventional ophthalmology instruments are too large in size, inconvenient to carry, large in requirements for places, and incapable of achieving multiple purposes, integrated use and comprehensive diagnosis.
Disclosure of Invention
In order to solve the above problem, an object of the utility model is to provide a multi-functional vision detection device, this scheme has synthesized multiple ophthalmology and has detected the function, and it is comprehensive to diagnose the project, promotes ophthalmology comprehensive diagnosis's efficiency greatly, for overcoming the too much requirement of current inspection instrument, and is bulky, can not synthesize diagnostic characteristics.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multifunctional eyesight detection device comprises a shell, a peephole arranged on the shell, and an observation hole corresponding to the peephole; the method is characterized in that: the shell on the side of the peephole is provided with a shadow examination fissure device, the projection end of the shadow examination fissure device can face the peephole, and the shadow examination fissure device can adjust the axial position and the width of transmitted light of the shadow examination fissure device; the device comprises a shell, a peephole, a projection end, a light source and a light source, wherein a fundus detection assembly is arranged in the shell, and the projection end of the fundus detection assembly is arranged on the shell below the peephole; the lens rotating disc is provided with at least a shadow detection lens, a slit lens and an eye ground lens along the axial center point circumference, and different lenses can be switched on the observation hole in the rotating process of the lens rotating disc.
The above technical scheme is adopted in the utility model, this technical scheme relates to a multi-functional visual detection device, is equipped with on this multi-functional visual detection device and examines shadow fissure ware, eye ground determine module and lens carousel, and wherein examine the shadow fissure ware and can be used for adjusting projection light's axle position and width again, can be used for judging when examining the shadow detects that astigmatism axle position and slit lamp adjust the crack width when detecting and use respectively, and the lamp source of eye ground determine module transmission is used for projecting the eye ground retina on the surface. Therefore, the multifunctional vision detection device has multiple functions of image detection, slit lamp detection and fundus detection, and different functions are started during use, and the lens rotating disc is rotated to enable the corresponding lens to be switched to the observation hole for use.
Therefore, the scheme integrates various ophthalmic detection functions, diagnosis and treatment items are comprehensive, and the comprehensive diagnosis efficiency of the eye diseases is greatly improved. The device aims to overcome the characteristics of excessive requirements, large volume and incapability of comprehensive diagnosis of the existing examination instrument.
In a specific technical scheme, the shadow examination fissure device comprises a cylindrical barrel, a shadow examination fissure light source arranged at the bottom of the barrel and a light adjusting assembly arranged on a cavity opening of the barrel; the light adjusting assembly comprises a first rotating disc and a second rotating disc which are overlapped with each other, a through hole communicated with the second rotating disc is formed in the center of the first rotating disc, the second rotating disc is arranged on the first rotating disc and can rotate synchronously with the first rotating disc, two crack baffles which can be relatively close to or far away from each other are arranged in the second rotating disc, and the two crack baffles in the second rotating disc can be controlled to be relatively close to or far away from each other by rotating the second rotating disc. In the scheme, light emitted by the radiographic examination crack light source is emitted after being adjusted by the dimming assembly, the first rotating disc and the second rotating disc in the dimming assembly are arranged in an overlapped mode, the two crack baffles can be adjusted to be relatively close to or far away from each other when the second rotating disc is rotated, namely, the gap (namely, the crack width) between the two crack baffles is adjusted, so that a crack light band is formed, a series of optical sections are formed through transparent tissues of each part of an eyeball, and tiny lesions of different layers and even deep tissues of a refractive index stroma are clearly displayed.
When the first turntable is rotated, the first turntable and the second turntable can be rotated, so that the light ray incidence direction is adjusted, and the axis of astigmatism is judged, wherein the axis of astigmatism generally refers to a meridian with the highest refractive power and is the axis of astigmatism; the line in a certain direction seen by the astigmatic eye is clear or blurred, depending on the axial direction and degree of astigmatism.
Preferably, the image examination fissure device is transversely movably arranged on the shell, and the projection end of the image examination fissure device can be adjusted in an up-and-down rotating mode. In the technical scheme, the shadow examination fissure device can move transversely to adjust the projection position and rotate up and down to adjust the projection angle.
In a specific embodiment, an extension frame is arranged above the shell, and a conductive slide rail arranged along the direction of the frame body is arranged in the extension frame; the examination shadow crack device is sleeved on the extension frame and can transversely slide on the conductive sliding rail along the left and right sides of the frame body. The examination shadow crack device in the scheme is sleeved on the extension frame and moves along the conductive sliding rail, so that the power cannot be cut off in the moving process. The image examination fissure device can realize vertical rotation adjustment through the following scheme, and comprises a base and a barrel, wherein the base is slidably sleeved on an extension frame and can transversely slide on a conductive sliding rail along the left and right sides of a frame body of the extension frame, and the barrel is rotatably arranged on the base; this is a conventional technical measure and will not be described in detail here.
Preferably, the inside of the extension frame is hollow or is provided with a wiring groove. The hollow interior of the extension frame or the wiring groove in the scheme is used for laying electric wires to be connected with the conductive sliding rails.
Preferably, the lens rotary table is detachably inserted into the outer wall of the shell on one side of the observation hole, and the lens rotary table can rotate around the insertion point as an axis. Among this technical scheme, the lens carousel can be dismantled and peg graft in the casing outer wall, can assemble, adorn the lens carousel when needs are examined, and pull down it when carrying the transportation, avoid damaging lens in the storage process.
In a particular embodiment, the fundus detection assembly includes a fundus light source, a fundus optics, and a refractive plate disposed inside a housing; the fundus optical group and the refraction plate are sequentially arranged in the projection direction of the fundus light source, and the fundus optical group is used for adjusting the light intensity; the shell below the peephole is provided with an eyeground light hole, and the refraction direction of the refraction plate faces the eyeground light hole. The light emitted by the fundus light source in the scheme is focused by the fundus optical group to enhance the luminosity; the refractive plate is used to refract the focused light rays into the patient's eye to observe an image of the fundus.
Preferably, a Y-shaped support is arranged in the shell, a lens rotating disc can be inserted into a front branch at the upper end of the Y-shaped support, a rear branch at the upper end of the Y-shaped support is connected with the extension frame, and an electric wire is arranged on the Y-shaped support and connected with a shadow examination fissure device on the extension frame. The Y-shaped support in the technical scheme is used as a support frame for inserting the lens rotary table on one hand, and is used as a wiring rack for arranging electric wires connected with the image examination fissure device on the other hand.
Drawings
Fig. 1 is a back perspective view of the present invention.
Fig. 2 is a front perspective view of the present invention.
Fig. 3 is an internal structure diagram of the present invention.
Fig. 4 is a three-dimensional exploded view of the radiographic testing crack rotary table of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 4, the present embodiment relates to a multifunctional vision inspection device, which includes a housing 7, a peephole 3 disposed on the housing 7, and an observation hole 5 corresponding to the peephole 3. The observation hole 5 and the peephole 3 are positioned at two sides of the opening of the observation bin 14, the shell 7 on the edge of the peephole 3 is provided with the image examination crevice device 1, the projection end of the image examination crevice device 1 can face the peephole 3, and the image examination crevice device 1 can adjust the axis position and the width of transmitted light of the image examination crevice device. The shell 7 is internally provided with a fundus detection component, and the projection end of the fundus detection component is arranged on the shell 7 below the peephole 3. The lens rotating disc 15 is arranged on the shell 7 on the edge of the observation hole 5, the lens rotating disc 15 is at least provided with a shadow detection lens, a slit lens and an eye ground lens along the axial center point circumference of the lens rotating disc 15, and different lenses can be switched on the observation hole 5 in the rotating process of the lens rotating disc 15. The multifunctional vision detection device is provided with a shadow examination fissure device 1, a fundus detection assembly and a lens turntable 15, wherein the shadow examination fissure device 1 can be used for adjusting the axial position and the width of projection light, can be used for judging the axial position of astigmatism during shadow examination detection and adjusting the width of a slit during slit lamp detection respectively, and a light source emitted by the fundus detection assembly is used for projecting onto the surface of fundus retina. Therefore, the multifunctional vision detection device has multiple functions of image detection, slit lamp detection and fundus detection, different functions are started during use, the lens turntable 15 is rotated to enable the corresponding lens to be switched to the observation hole 5 for use, and the requirements of different detections on zooming are met.
Therefore, the scheme integrates various ophthalmic detection functions, diagnosis and treatment items are comprehensive, and the comprehensive diagnosis efficiency of the eye diseases is greatly improved. The device aims to overcome the characteristics of excessive requirements, large volume and incapability of comprehensive diagnosis of the existing examination instrument.
In a specific technical scheme, the shadow examination fissure device 1 is transversely arranged on the shell 7 in a moving mode, and the projection end of the shadow examination fissure device can be adjusted in an up-and-down rotating mode. In the scheme, the shadow examination fissure device 1 can move transversely to adjust the projection position and rotate up and down to adjust the projection angle. The scheme of lateral shifting is that extension frame 4 is arranged above shell 7, and extension frame 4 is provided with a conductive slide rail arranged along the direction of the frame body. The examination shadow crack device 1 is sleeved on the beam 2 of the extension frame 4 and can transversely slide on the conductive slide rail along the left and right sides of the frame body. The examination shadow crack device 1 in the scheme is sleeved on the extension frame 4 and moves along the conductive slide rail, so that the power cannot be cut off in the moving process. Further, the inside of the extension frame 4 is hollow or is provided with a wiring groove. The extension frame 4 in this scheme is used for laying wires in the hollow interior or the wiring groove and connecting the wires with the conductive sliding rails.
In addition, the regulation of rotating from top to bottom is realized to the following scheme of examination shadow crack ware 1 accessible, and examination shadow crack ware 1 includes base and barrel, and the base slides and cup joints on extension frame 4 and can follow that its support body is controlled horizontal slip on electrically conductive slide rail, and the barrel rotates and sets up on the base. This is a conventional technical measure and will not be described in detail here.
The examination shadow crack device 1 further comprises an examination shadow crack light source 12 arranged at the bottom of the barrel body and a dimming component 13 arranged on the cavity opening of the barrel body. The dimming assembly 13 comprises a first rotating disc 21 and a second rotating disc 23 which are overlapped with each other, a through hole communicated with the second rotating disc 23 is formed in the center of the first rotating disc 21, the second rotating disc 23 is arranged on the first rotating disc 21 and can rotate synchronously with the first rotating disc, two crack baffles 22 which can be relatively close to or far away from each other are arranged in the second rotating disc 23, and the two crack baffles 22 in the second rotating disc 23 can be controlled to be relatively close to or far away from each other by rotating the second rotating disc 23. In the scheme, light emitted by the radiographic testing slit light source 12 is emitted after being adjusted by the dimming assembly 13, the first rotating disc 21 and the second rotating disc 23 in the dimming assembly 13 are arranged in an overlapped mode, when the second rotating disc 23 is rotated, the two slit baffles 22 can be adjusted to be relatively close to or far away from each other, namely, the gap (namely, the slit width) between the two slit baffles 22 is adjusted, so that a slit light band is formed, a series of optical sections are formed through transparent tissues of each part of an eyeball, and different layers of refractive interstitials and even tiny lesions of deep tissues are clearly displayed.
When the first rotating disc 21 is rotated, the first rotating disc 21 and the second rotating disc 23 can be rotated, so that the light incidence direction can be adjusted, and the axis of astigmatism can be judged, wherein the axis of astigmatism generally refers to a meridian with the highest refractive power, and is the axis of astigmatism. The line in a certain direction seen by the astigmatic eye is clear or blurred, depending on the axial direction and degree of astigmatism.
As shown in fig. 3, the lens rotary table 15 is detachably inserted into the outer wall of the housing 7 on the side of the observation hole 5, and the lens rotary table 15 can rotate around the insertion point. Lens carousel 15 in this scheme can dismantle to peg graft in casing 7 outer wall, can assemble, adorn lens carousel 15 when needs are detected, and dismantle it when carrying the transportation, avoid damaging lens in the storage process.
In a further aspect, the fundus detection assembly includes a fundus light source 19, a fundus optics set 17, and a refractive plate 16 disposed inside the housing 7. The fundus optical group 17 and the refraction plate 16 are arranged in sequence in the projection direction of the fundus light source 19, and the fundus optical group 17 is used for adjusting the light intensity. The shell 7 below the peephole 3 is provided with a fundus light hole, and the refraction direction of the refraction plate 16 faces the fundus light hole. In the scheme, light emitted by an eyeground light source 19 is focused by an eyeground optical group 17 to enhance luminosity. The refractive plate 16 is used to refract the focused light rays into the patient's eye to observe an image of the fundus.
In addition, a power supply 20 is arranged in the shell 7 and used for connecting the fundus light source 19 and the inspection fissure light source 12 for supplying power, and a charging hole 8, a charging indicator lamp 11 and a power supply controller 6 which are connected with the power supply are arranged on the outer side of the shell. As shown in the figure, a Y-shaped support 18 is arranged in the shell 7, a lens rotating disc 15 can be inserted into a front branch at the upper end of the Y-shaped support 18, a rear branch at the upper end of the Y-shaped support 18 is connected with the extension frame 4, and an electric wire is arranged on the Y-shaped support 18 and connected with the shadow examination fissure device 1 on the extension frame 4. The Y-shaped support 18 in the technical scheme is used as a support frame for the lens rotating disc 15 to be inserted and connected, and is used as a wiring rack for connecting electric wires of the examination fissure device 1 to be arranged.
In conclusion, the scheme has the advantages that the highly integrated basic ophthalmologic examination device achieves multiple purposes, comprehensively grasps basic ophthalmologic examination, and simultaneously increases comprehensive diagnosis capacity of ophthalmologic diseases and reduces misdiagnosis rate.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (8)

1. A multifunctional eyesight test device comprises a shell (7), a peephole (3) arranged on the shell (7), and a viewing hole (5) corresponding to the peephole (3); the method is characterized in that: a shadow examination slit device (1) is arranged on a shell (7) on the side of the peephole (3), the projection end of the shadow examination slit device (1) can face the peephole (3), and the axial position and the width of transmitted light of the shadow examination slit device (1) can be adjusted; an eyeground detection component is arranged in the shell (7), and a projection end of the eyeground detection component is arranged on the shell (7) below the peephole (3); the lens rotating disc (15) is arranged on the shell (7) on the edge of the observation hole (5), the lens rotating disc (15) is at least provided with a shadow examination lens, a slit lens and an eye fundus lens along the circumference of the axis point of the lens rotating disc (15), and different lenses can be switched on the observation hole (5) in the rotating process of the lens rotating disc (15).
2. The multi-functional vision testing device of claim 1, wherein: the image examination fissure device (1) comprises a cylindrical barrel, an image examination fissure light source (12) arranged at the bottom of the barrel, and a light adjusting assembly (13) arranged on a cavity opening of the barrel; the dimming assembly (13) comprises a first rotating disc (21) and a second rotating disc (23) which are overlapped with each other, a through hole communicated with the second rotating disc (23) is formed in the center of the first rotating disc (21), the second rotating disc (23) is arranged on the first rotating disc (21) and can rotate synchronously with the first rotating disc, two crack baffles (22) which can be relatively close to or far away from each other are arranged in the second rotating disc (23), and the second rotating disc (23) can control the two crack baffles (22) in the light modulator to be relatively close to or far away from each other.
3. The multi-functional vision testing device of claim 1, wherein: the image examination fissure device (1) is transversely arranged on the shell (7) in a moving mode, and the projection end of the image examination fissure device can be adjusted in an up-and-down rotating mode.
4. The multi-functional vision testing device of claim 3, wherein: an extension frame (4) is arranged above the shell (7), and a conductive sliding rail arranged along the direction of the frame body is arranged in the extension frame (4); the examination shadow crack device (1) is sleeved on the extension frame (4) and can transversely slide on the conductive sliding rail along the left and right sides of the frame body.
5. The multi-functional vision testing device of claim 4, wherein: the extension rack (4) is hollow or internally provided with a wiring groove.
6. The multi-functional vision testing device of claim 2, wherein: the lens rotary table (15) can be detachably inserted into the outer wall of the shell (7) on one side of the observation hole (5), and the lens rotary table (15) can rotate along the insertion point as an axis.
7. The multi-functional vision testing device of claim 1, wherein: the fundus detection assembly comprises a fundus light source (19), a fundus optical group (17) and a refraction plate (16) which are arranged in the shell (7); the fundus optical group (17) and the refraction plate (16) are sequentially arranged in the projection direction of the fundus light source (19), and the fundus optical group (17) is used for adjusting the light intensity; the shell (7) below the peephole (3) is provided with an eyeground light hole, and the refraction direction of the refraction plate (16) faces to the eyeground light hole.
8. The multi-functional vision testing device of claim 4, wherein: the multifunctional X-ray examination equipment is characterized in that a Y-shaped support (18) is arranged inside the shell (7), a lens turntable (15) can be inserted into a front branch at the upper end of the Y-shaped support (18), a rear branch at the upper end of the Y-shaped support (18) is connected with the extension frame (4), and an electric wire is arranged on the Y-shaped support (18) and connected with the examination crack device (1) on the extension frame (4).
CN202122950684.XU 2021-11-29 2021-11-29 Multifunctional vision detection device Active CN216724523U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122950684.XU CN216724523U (en) 2021-11-29 2021-11-29 Multifunctional vision detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122950684.XU CN216724523U (en) 2021-11-29 2021-11-29 Multifunctional vision detection device

Publications (1)

Publication Number Publication Date
CN216724523U true CN216724523U (en) 2022-06-14

Family

ID=81931460

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122950684.XU Active CN216724523U (en) 2021-11-29 2021-11-29 Multifunctional vision detection device

Country Status (1)

Country Link
CN (1) CN216724523U (en)

Similar Documents

Publication Publication Date Title
JP5451326B2 (en) Retinographic digital processing device
EP2866640B1 (en) Multiple-view composite ophthalmic iridocorneal angle imaging system
CN216724523U (en) Multifunctional vision detection device
US9144379B1 (en) Diagnostic method and system for detecting early age macular degeneration, maculopathies and cystoid macular edema post cataract surgery
JP2023175996A (en) Optometer
US9332905B1 (en) Diagnostic method and system for detecting early age-related macular degeneration, maculopathies and cystoid macular edema post cataract surgery
US5838421A (en) Binocular direct opthalmoscope
AU2001282319A1 (en) Ophthalmic device
Parel et al. The optics of the ophthalmoscope and related instruments
CN106539556A (en) Confocal laser fundus imaging instrument
CN113974957A (en) Lens barrel for fundus massage device and fundus massage device
CN208784703U (en) A kind of ophthalmic eye observation lamp
US10729319B2 (en) Opthalmic device for fundus examination
Singh et al. Understanding your direct ophthalmoscope
CN215340529U (en) Low-illumination focusing indirect ophthalmoscope
CN220175088U (en) Monocular wide-angle ophthalmoscope capable of shading light and continuously zooming
CN116982927B (en) Multi-lens ophthalmic examination equipment and method
CN212489856U (en) Medical treatment ophthalmic eyesight testing arrangement
White et al. Contact lenses
CN211609750U (en) Vertical flat foot sole observer
CN217138040U (en) Ophthalmoscope convenient to use
CN212574850U (en) Eye sight is with examining shadow mirror
JP7216562B2 (en) ophthalmic equipment
CN208610812U (en) A kind of pen type slit-lamp magnifying glass
CN206729872U (en) Confocal laser fundus imaging instrument

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant