CN104287692A - Fundus oculi shooting device - Google Patents
Fundus oculi shooting device Download PDFInfo
- Publication number
- CN104287692A CN104287692A CN201410619383.0A CN201410619383A CN104287692A CN 104287692 A CN104287692 A CN 104287692A CN 201410619383 A CN201410619383 A CN 201410619383A CN 104287692 A CN104287692 A CN 104287692A
- Authority
- CN
- China
- Prior art keywords
- fundus
- photo
- photography device
- fundus photography
- optical
- 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.)
- Granted
Links
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
The invention discloses a fundus oculi shooting device which is used for pathological examination to human fundus oculi medically, so as to obtain human fundus oculi images through an optical imaging method to judge fundus oculi pathology and nidus.
Description
Technical field
The present invention relates to a kind of fundus photography device, belong to medical instruments field, for taking human eye eye fundus image, playing the function of retinopathy inspection and auxiliary other organ state of an illness judgement.
Background technology
Fundus photography equipment is one of important, indispensable optical detection apparatus in medical imaging field.Adopt fundus photography equipment, the Fundus states such as the optic nerve on optical fundus, retina, choroid and refracting media can be checked, can also assist to diagnose other organ diseases and state of an illness judgement by optical fundus symptom.Namely human eye itself is a wired bore non-ideal optical system, and the pupil aperture of human eye directly limit the ultimate resolution of fundus photography equipment, and the aberrations such as out of focus can reduce again the optical property of fundus photography equipment further.
Relative to the restriction to ultimate resolution of limited pupil aperture, overcome human eye out of focus more urgent on the impact of fundus photography device resolution, people propose the method and apparatus that some correct out of focus in fundus camera.Paper " can induce the fundus camera design of Optical System of human eye automatic focusing " (Acta Optica volume April the 34th in 2014, the 4th phase, 0422001.1-0422001.7) disclose a kind of fundus camera optical system adopting axial cone mirror group to produce the induced human eye automatic focusing of ring light illumination, by arranging sighting target, induction human eye automatic focusing, realizes the preliminary corrections of human eye primary aberration.
Chinese invention patent (the application number: 201410108059) disclose the fundus camera that a kind of manual adjustments image device position reaches focusing function of " a kind of hand-held fundus camera " by name.
Chinese invention patent (the application number: 201320057059.5) disclose a kind of reaction type automatic focusing device based on image definition of " a kind of automatic focusing compensating device " by name.
The Chinese invention patent of " the adaptive optics fundus camera that a kind of visibility regulates " (application number: 201310207225.X) by name, discloses a kind of device correcting human eye and optical aberration based on adaptive optical technique.
" fundus angiography method and fundus angiography equipment " (Chinese application number 201110430451.5) by name proposes a kind of by correcting unit correcting optical system aberration, improves the device of fundus camera resolution.
Paper " is exempted from the precision focusing of mydriasis fundus camera " and is proposed a kind of method (optical precision engineering, Vol.17No.52009 1014-1019) that pair wedge splits picture focusing that is called.
The thinking of traditional fundus photography device correction out of focus increases defocusing compensation element in the optical path, increases feedback control component accordingly, comprises automatic feedback control or Non-follow control focus adjusting mechanism, this considerably increases the complexity comprising fundus photography device." the portable fundus camera of a kind of variable curvature formula liquid lens " (application number: Chinese invention patent 201310728493.6) by name, disclose a kind of Portable fundus camera of variable curvature formula liquid lens, main purpose adopts liquid variable curvature lens to replace traditional mechanical focusing structure, play the object of simplied system structure, but still cannot exempt focusing component and feedback system.Existing fundus photography device nearly all faces the shortcoming that volume is comparatively large, system structure is complicated.
The present invention proposes a kind of fundus photography device, a microlens array is increased in fundus imaging optical system, utilize the information such as intensity and transmission direction of two-dimentional photo-sensitive cell record light, adopt signal processing unit that the data of two-dimentional photo-sensitive cell record are carried out digital refocusing and realize digital focus function, high definition fundus imaging under dynamic light field reparametrization technology can be adopted to realize vitreous opacity situation, optical fundus three-dimensional microstructures can also be obtained by Three Dimensional Reconfiguration, realize the multiple functions such as the low distortion imaging of optical fundus high-res.The present invention proposes a kind of fundus photography device, to have volume little, easy to carry, steady performance.
Summary of the invention
A kind of fundus photography device, for taking pictures to optical fundus or photographing, comprising:
Fundus illumination light source, for throwing light on to optical fundus;
Imageing sensor is the two-dimension photoelectric sensor part that CCD, CMOS or one dimension sensor array form, for converting optical signalling to digital signal;
Photo-optics assembly, it can be one section of space length, also can be made up of optical elements such as one group of lens, reflecting mirror, light-splitting device, polarizers, wherein lens are simple lens or balsaming lens, focus on imageing sensor for making the light echo of fundus reflex;
Signal processing unit, is the large scale digital logical integrated circuits such as CPU, FPGA or DSP, is connected with fundus illumination light source with imageing sensor, the functions such as settling signal collection, image procossing, Systematical control;
Control Component, is the equipment such as mechanical key, Touch Screen, the entering apparatus that can identify biological electric wave, the body sense input that maybe can identify limb action be connected with signal processing unit, realizes the control to described fundus photography equipment;
Power supply module, for described fundus camera provides electric power energy;
Described fundus photography equipment also comprises at least one display module, or at least one data storage cell, or at least one data transmission interface;
Described memory element is the storage cards such as mechanical hard disk, solid state hard disc, SD or T-Flash, also can be the equipment such as network cloud storage;
Described data transmission interface, for wired data interface such as USB, CameraLink, also can be the wireless data interface such as Wifi, Zigbee, bluetooth, in order to realize described fundus photography equipment and the connection of other equipment, reach data transmission or the controlling functions to described fundus photography equipment;
Described fundus photography equipment, its optical signal, electric signal transmission and conversion flow to and are expressed as follows, first the light beam that described lighting source sends enters optical fundus, thrown light in optical fundus, the light beam returned by fundus reflex, through photo-optics component transform, incides on imageing sensor, by imageing sensor, optical signal is converted into the signal of telecommunication, input signal processing unit, is sent to display module, data storage cell or data transmission interface by signal processing unit by the image information after process;
Described fundus photography equipment, is characterized in that,
Described photo-optics assembly comprises at least one microlens array, when described photo-optics assembly is space length, described microlens array is between human eye and two-dimentional photo-sensitive cell, when described photo-optics assembly is one group of optical element, described microlens array is between human eye and photo-optics assembly, or in photo-optics assembly between optical element or carve in optical element surface, or between photo-optics assembly and two-dimentional photo-sensitive cell.
Described fundus photography equipment also comprises fixation light source, and described fixation light source sends the monochromatic or broadband visible light bundle of the narrow wave band of wavelength between 400nm-800nm, and light beam enters human eye pupil through light-splitting device, for stable eye-observation direction.
Described fundus photography equipment also comprises a housing, and described fundus illumination light source, imageing sensor, photo-optics assembly, signal processing unit, Control Component, power supply module, data transmission interface are positioned at housing; Data storage cell, display module assembly, in described housing, also can be external equipments; Described housing can be independently, also can be the combination of several independent case module.
Described power supply module is the power supply adaptor of access electrical network, or battery.
Accompanying drawing explanation
Fig. 1 is the structural representation of fundus photography device of the present invention
Fig. 2 is with the fundus photography device schematic diagram of wireless transmission interface
Fig. 3 is with photographic means schematic diagram at the bottom of the Portable eye of interior fixation
Fig. 4 is with photographic means schematic diagram at the bottom of the Portable eye of manual focusing
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is elaborated through row, make advantages and features of the invention more easily be those skilled in the art will recognize that thus to make more explicit defining to protection scope of the present invention.
Detailed description of the invention 1
Refer to Fig. 1, photographic means at the bottom of a kind of Portable eye, is made up of fundus illumination light source (1), the lighting source polarizer (2), ocular (3), light echo analyzer (4), photographic lens group (5), microlens array (6), two-dimentional photo-sensitive cell (7), signal processing unit (8), display module (9), power supply (10), control button (11) and corresponding main body cover (12-1 and 12-2).
Wherein ocular (3) and photographic lens group (5) composition photo-optics assembly, also introduce the lighting source polarizer (2) and light echo analyzer (4) in this embodiment, play the effect eliminating veiling glare and ghost image.In the invention process example, microlens array (6) is positioned between photographic lens group (5) and two-dimentional photo-sensitive cell (7), position is the image space plane being positioned at photographic lens group (5) accurately, and two-dimentional photo-sensitive cell (7) is positioned on the focal plane of microlens array (6).
The light beam that fundus illumination light source (1) sends, linearly polarized light beam is become after the lighting source polarizer (2), linearly polarized light beam is focused on the pupil of human eye to be detected by ocular (3), through the tissue human eye pupil and retina, Uniform Illumination optical fundus; Wherein said fundus illumination light source (1) comprises LED and the visible LED of an infrared band.Its typical wavelengths of near-infrared LED is near 850nm, and white light LEDs emission wavelength is the light wave of the continuous wave band from 400nm to 750nm.
Described fundus illumination light source (1) is positioned at optical axis side on the upper side, and has certain angle with the optical axis of photographic lens group (5) and ocular (3), oblique incidence ocular (3).Two optical surfaces of described ocular (3) are convex surface.By the light echo that retinal reflex goes out, above converge at two-dimentional photo-sensitive cell (7) through ocular (3), light echo analyzer (4), photographic lens module (5) successively; In this embodiment, described two-dimentional photo-sensitive cell (7) is a cmos image sensing chip.Described signal processing unit (8) is connected with power supply (10) with described two-dimentional photo-sensitive cell (7), microlens array (6), display module (9), fundus illumination light source (1).Described focusing component is connected with two-dimentional photo-sensitive cell, can make two-dimentional photo-sensitive cell, and the optical axis along photographic lens group moves forward and backward.
In the invention process example, main body cover (12) is made up of (main body cover 12-1 and main body cover 12-2) two parts.The Part I (12-1) of main body cover is connected by bayonet socket with the Part II (12-2) of main body cover.This bayonet socket plays mechanically fixing function, also with circuit and communication interface, is used for as fundus illumination light source (1) power supply, and realizes the controlling functions of fundus illumination light source (1).Fundus illumination light source (1), the lighting source polarizer (2), ocular (3), light echo analyzer (4), photographic lens group (5) and microlens array (6) are arranged in the Part I (12-1) of main body cover.Two dimension photo-sensitive cell (7), signal processing unit (8), display module (9), power supply (10) and control button (11) are arranged in the Part II (12-2) of main body cover.
Control Component (11) is connected with signal processing unit (8), is responsible for taking pictures, arranging systematic parameter and regulating system state.User can be arranged system many kinds of parameters by button, and the power of such as lighting source energy, video and picture mode, browsing pictures pattern, light illumination mode, set of time, date are arranged.The power supply of this embodiment is a lithium battery, and its function is responsible for whole Circuits System to provide power supply support, and comprise LED illumination, liquid crystal display is powered, and is responsible for the function of battery charging simultaneously.USB2.0 data-interface can be used to be connected to computer or 220V-5V power supply adaptor charges.Power module is automatic stop function after battery is full of, protection power source equipment.The picture on shooting optical fundus can be shown on liquid crystal display by the present invention in real time, the picture of shooting can be kept in SD storage card simultaneously.Can also be connect in succession by USB data line and computer direct.By reading the content of SD card, can preserve and picture captured by printing.
When numeral refocusing realizes digital focus function, signal processing unit needs huge computing capability, in embodiment 1, signal processing unit (8) is made up of FPGA and ARM chip, and wherein fpga chip is in order to realize digital refocusing, and ARM chip is as main control chip.
Specific embodiment 2
Concrete embodiment 2 is on the basis of example 1, use wireless data transmission interface-Wifi interface, realizes the data interconnection between fundus camera and graphics workstation (13).Complete large-scale image data by graphics workstation (13) to store, and the realization of digital refocusing algorithm, dynamically light field reparametrization algorithm and 3-D view reconstruct scheduling algorithm.Graphics workstation (13) is also furnished with large-sized monitor (14), is conducive to observing image detail.
Concrete embodiment 3
Embodiment 3 is the fundus cameries increasing fixation light source in the optical system of embodiment 1, wherein fixation lamp (15) is visible ray diode laser, the light beam sent enters in human eye through beam splitter (14), plays the effect in fixing human eye observation direction.
Concrete embodiment 4
Embodiment 4 discloses a kind of on the basis of concrete embodiment 1 form, with the fundus camera of mechanical focusing structure.In concrete embodiment 4, imageing sensor is connected with focusing structure, and wherein focusing structure comprises a cam curve cylinder, and cam curve cylinder is also configured with bevel type gear, drive mechanism and focusing knob.Imageing sensor is integrated on the cam curve cylinder of focusing structure, to ensure the adjustment of focusing structure to imageing sensor.Housing is made up of two parts, and there is display module Part II (12-2) rear end of shell, and be made up of display sheet and display screen, its lower end is handle, and handle inner placed power board, lithium battery, focusing knob.Focusing knob also provided bevel type gear, match with the bevel type gear of cam curve cylinder.
It should be noted that, preferred version of the present invention is announced as above, but it is not limited in listed in description and embodiment utilization.It can be used to the field of the invention completely, for those skilled in the art, can realize other amendment easily, therefore do not deviating under the general concept that claim and equivalency range limit, the present invention is not limited to specific details and legend as described herein.
Claims (9)
1. a fundus photography device, for taking pictures to optical fundus or photographing, comprising:
Fundus illumination light source, for throwing light on to optical fundus;
Imageing sensor, for converting optical signalling to digital signal;
Photo-optics assembly, is made up of one group of optical element or space length, focuses on imageing sensor for making the light echo of fundus reflex;
Signal processing unit, is connected with imageing sensor with fundus illumination light source;
Control Component, is connected with signal processing unit, realizes the control to described fundus photography device;
Power supply module, for described fundus camera provides electric power energy;
Described fundus photography device also comprises at least one display module, or at least one data storage cell, or at least one data transmission interface;
Described fundus photography device, its optical signal, electric signal transmission and conversion flow to and are expressed as follows, first the light beam that described lighting source sends enters optical fundus, thrown light in optical fundus, the light beam returned by fundus reflex, through photo-optics component transform, incides on imageing sensor, by imageing sensor, optical signal is converted into the signal of telecommunication, input signal processing unit, is sent to display module, data storage cell or data transmission interface by signal processing unit by the image information after process;
Described fundus photography device, is characterized in that,
Described photo-optics assembly comprises at least one microlens array, when described photo-optics assembly is space length, described microlens array is between human eye and two-dimentional photo-sensitive cell, when described photo-optics assembly is one group of optical element, described microlens array is between human eye and photo-optics assembly, or in photo-optics assembly between optical element or carve in optical element surface, or between photo-optics assembly and two-dimentional photo-sensitive cell.
2. fundus photography device according to claim 1, it is characterized in that, described fundus photography device also comprises fixation light source, described fixation light source sends the monochromatic or broadband visible light bundle of the narrow wave band of wavelength between 400nm-800nm, light beam enters human eye pupil through light-splitting device, for stable eye-observation direction.
3. according to claim 1 and fundus photography device according to claim 2, it is characterized in that, described fundus illumination light source, imageing sensor, photo-optics assembly, signal processing unit, Control Component, power supply module, data transmission interface are positioned at a housing;
Data storage cell, display module assembly, in described housing, also can be external devices;
Described housing can be independently, also can be the combination of several independent case module.
4. fundus photography device according to claim 1, is characterized in that,
Described imageing sensor is the two-dimension photoelectric sensor part of CCD, CMOS or one dimension sensor array composition;
Described photo-optics assembly, can be one section of space length, also can be made up of optical elements such as one group of lens, reflecting mirror, light-splitting device, polarizers, wherein lens be simple lens or balsaming lens;
Described signal processing unit is the large scale digital logical integrated circuits such as CPU, FPGA or DSP.
5. fundus photography device according to claim 1, it is characterized in that described Control Component, is the device such as mechanical key, Touch Screen, the entering apparatus that can identify biological electric wave, the body sense input that maybe can identify limb action be connected with signal processing unit;
Described Touch Screen and the display module described in claim 1 can be same device.
6. fundus photography device according to claim 1, is characterized in that described memory element, is the storage cards such as mechanical hard disk, solid state hard disc, SD or T-Flash, also can be the devices such as network cloud storage.
7. according to fundus photography device according to claim 1, it is characterized in that described data transmission interface, for wired data interface such as USB, CameraLink, also can be the wireless data interface such as Wifi, Zigbee, bluetooth, in order to realize described fundus photography device and the connection of other devices, reach data transmission or the controlling functions to described fundus photography device.
8. fundus photography device according to claim 1, is characterized in that, described power supply module is the power supply adaptor of access electrical network, or battery.
9. fundus photography device according to claim 1, is characterized in that, described described fundus photography device can also comprise focusing structure, and focusing structure can drive one or one group of optical element in photo-optics assembly, or drives imageing sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619383.0A CN104287692B (en) | 2014-11-06 | 2014-11-06 | A kind of eye-ground photography device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619383.0A CN104287692B (en) | 2014-11-06 | 2014-11-06 | A kind of eye-ground photography device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104287692A true CN104287692A (en) | 2015-01-21 |
| CN104287692B CN104287692B (en) | 2017-12-19 |
Family
ID=52307837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410619383.0A Active CN104287692B (en) | 2014-11-06 | 2014-11-06 | A kind of eye-ground photography device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104287692B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757933A (en) * | 2015-04-17 | 2015-07-08 | 宋金岩 | Handheld type fundus camera |
| CN105982649A (en) * | 2015-03-20 | 2016-10-05 | 明达医学科技股份有限公司 | Portable optical measuring apparatus and measuring system |
| CN107095641A (en) * | 2017-04-28 | 2017-08-29 | 农玉金 | A kind of binocular indirect ophthalmoscope |
| CN107157440A (en) * | 2017-04-28 | 2017-09-15 | 农玉金 | A kind of binocular spacing ophthalmoscope fixing device of convenient regulation |
| CN107184179A (en) * | 2017-04-28 | 2017-09-22 | 农玉金 | A kind of binocular indirect ophthalmoscope of convenient regulation angle |
| CN107788947A (en) * | 2016-09-07 | 2018-03-13 | 爱博诺德（北京）医疗科技有限公司 | Eye examination apparatus and method |
| CN108236452A (en) * | 2017-02-17 | 2018-07-03 | 苏州康捷医疗股份有限公司 | Slit-lamp microscope |
| CN109243404A (en) * | 2018-10-09 | 2019-01-18 | 温州医科大学 | Digital scanning amplification system |
| CN117761950A (en) * | 2024-02-21 | 2024-03-26 | 深圳莫廷医疗科技股份有限公司 | Fundus camera |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389263A (en) * | 2006-02-28 | 2009-03-18 | 卡尔蔡司医疗技术股份公司 | Ophthalmological appliance |
| US20100134802A1 (en) * | 2007-08-06 | 2010-06-03 | Kabushiki Kaisha Topcon | Optical image measuring device |
| CN102202558A (en) * | 2008-10-16 | 2011-09-28 | 史提芬·维杜纳 | Apparatus and method for imaging the eye |
| US20130010260A1 (en) * | 2011-07-08 | 2013-01-10 | Carl Zeiss Meditec, Inc. | Light field camera for fundus photography |
| CN102885612A (en) * | 2012-02-14 | 2013-01-23 | 苏州微清医疗器械有限公司 | Fundus imaging equipment for clinical diagnosis |
| US20130169934A1 (en) * | 2011-12-09 | 2013-07-04 | Steven Roger Verdooner | Method for combining a plurality of eye images into a plenoptic multifocal image |
| CN103271717A (en) * | 2013-05-30 | 2013-09-04 | 中国科学院长春光学精密机械与物理研究所 | Visibility-adjustable adaptive optical fundus camera |
| CN103815869A (en) * | 2014-03-21 | 2014-05-28 | 苏州微清医疗器械有限公司 | Handheld type fundus camera |
| CN203709995U (en) * | 2013-02-01 | 2014-07-16 | 苏州微清医疗器械有限公司 | Auto-focusing compensation device |
| EP2769666A1 (en) * | 2011-10-20 | 2014-08-27 | Asociación Industrial de Óptica, Color e Imagen - AIDO | Multi-view fundus camera |
-
2014
- 2014-11-06 CN CN201410619383.0A patent/CN104287692B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389263A (en) * | 2006-02-28 | 2009-03-18 | 卡尔蔡司医疗技术股份公司 | Ophthalmological appliance |
| US20100134802A1 (en) * | 2007-08-06 | 2010-06-03 | Kabushiki Kaisha Topcon | Optical image measuring device |
| CN102202558A (en) * | 2008-10-16 | 2011-09-28 | 史提芬·维杜纳 | Apparatus and method for imaging the eye |
| US20130010260A1 (en) * | 2011-07-08 | 2013-01-10 | Carl Zeiss Meditec, Inc. | Light field camera for fundus photography |
| EP2769666A1 (en) * | 2011-10-20 | 2014-08-27 | Asociación Industrial de Óptica, Color e Imagen - AIDO | Multi-view fundus camera |
| US20130169934A1 (en) * | 2011-12-09 | 2013-07-04 | Steven Roger Verdooner | Method for combining a plurality of eye images into a plenoptic multifocal image |
| CN102885612A (en) * | 2012-02-14 | 2013-01-23 | 苏州微清医疗器械有限公司 | Fundus imaging equipment for clinical diagnosis |
| CN203709995U (en) * | 2013-02-01 | 2014-07-16 | 苏州微清医疗器械有限公司 | Auto-focusing compensation device |
| CN103271717A (en) * | 2013-05-30 | 2013-09-04 | 中国科学院长春光学精密机械与物理研究所 | Visibility-adjustable adaptive optical fundus camera |
| CN103815869A (en) * | 2014-03-21 | 2014-05-28 | 苏州微清医疗器械有限公司 | Handheld type fundus camera |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982649A (en) * | 2015-03-20 | 2016-10-05 | 明达医学科技股份有限公司 | Portable optical measuring apparatus and measuring system |
| CN104757933A (en) * | 2015-04-17 | 2015-07-08 | 宋金岩 | Handheld type fundus camera |
| CN107788947A (en) * | 2016-09-07 | 2018-03-13 | 爱博诺德（北京）医疗科技有限公司 | Eye examination apparatus and method |
| CN108236452A (en) * | 2017-02-17 | 2018-07-03 | 苏州康捷医疗股份有限公司 | Slit-lamp microscope |
| CN107095641A (en) * | 2017-04-28 | 2017-08-29 | 农玉金 | A kind of binocular indirect ophthalmoscope |
| CN107157440A (en) * | 2017-04-28 | 2017-09-15 | 农玉金 | A kind of binocular spacing ophthalmoscope fixing device of convenient regulation |
| CN107184179A (en) * | 2017-04-28 | 2017-09-22 | 农玉金 | A kind of binocular indirect ophthalmoscope of convenient regulation angle |
| CN107095641B (en) * | 2017-04-28 | 2019-02-19 | 广西驰胜农业科技有限公司 | A kind of binocular indirect ophthalmoscope |
| CN107157440B (en) * | 2017-04-28 | 2019-04-02 | 农玉金 | A kind of fixed device of the binocular indirect ophthalmoscope facilitating adjusting |
| CN109243404A (en) * | 2018-10-09 | 2019-01-18 | 温州医科大学 | Digital scanning amplification system |
| CN117761950A (en) * | 2024-02-21 | 2024-03-26 | 深圳莫廷医疗科技股份有限公司 | Fundus camera |
| CN117761950B (en) * | 2024-02-21 | 2024-04-30 | 深圳莫廷医疗科技股份有限公司 | Fundus camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104287692B (en) | 2017-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104287692B (en) | A kind of eye-ground photography device | |
| CN105581771B (en) | fundus camera | |
| EP1694195B1 (en) | Digital documenting ophthalmoscope | |
| US10595724B2 (en) | Adaptor for an image capture device for fundus photography | |
| US20130194548A1 (en) | Portable retinal imaging device | |
| CN103815869A (en) | Handheld type fundus camera | |
| US20140267668A1 (en) | Portable fundus camera | |
| CN107529983A (en) | Portable wavefront analyzer with open field aligned with channel | |
| CN104586351A (en) | Portable fundus camera | |
| CN1311780C (en) | Ophthalmologic apparatus | |
| CN103027664A (en) | Host, optical lens module and digital diagnostic system composed of optical lens module | |
| CN103750815A (en) | Portable variable camber liquid lens fundus camera | |
| WO2013162471A2 (en) | Portable optics adapter to digital camera for fundus imaging | |
| US20190384049A1 (en) | Image conversion module for a microscope and microscope | |
| CN104887176A (en) | Handheld independent vision measurement device and method | |
| US9770166B2 (en) | Contact-type ophthalmoscope | |
| CN202078293U (en) | Portable fundus camera | |
| CN102613957B (en) | Fundus examination equipment | |
| CN205795642U (en) | A kind of hand-held fundus camera | |
| CN105011902A (en) | Handheld fundus camera based on liquid lens | |
| CN104887179A (en) | Visual handheld fundus camera without display screen | |
| CN103702027A (en) | Intelligent microscope for surgical operation | |
| CN203987984U (en) | A kind of hand-held fundus camera | |
| CN102612340A (en) | A method and examination device for imaging an organ | |
| CN105105699A (en) | Fiber optic endoscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Microclear Medical Instruments Co., Ltd. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |