CN106175660A - Hand fundus camera - Google Patents
Hand fundus camera Download PDFInfo
- Publication number
- CN106175660A CN106175660A CN201610541574.9A CN201610541574A CN106175660A CN 106175660 A CN106175660 A CN 106175660A CN 201610541574 A CN201610541574 A CN 201610541574A CN 106175660 A CN106175660 A CN 106175660A
- Authority
- CN
- China
- Prior art keywords
- hand
- fundus camera
- fixation lamp
- lens barrel
- main part
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
- A61B3/145—Arrangements specially adapted for eye photography by video means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Ophthalmology & Optometry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Multimedia (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Present invention is disclosed a kind of hand fundus camera, including housing and the lens barrel that matches with described housing, described hand fundus camera is additionally provided with fixation lamp, in order to the eyes that fixation is not observed, and described fixation lamp is positioned at the outside of described hand fundus camera.Compared to prior art, hand fundus camera of the present invention is provided with the fixation lamp being positioned at outside described hand fundus camera, the optical axis in order to the fixing eye that is not taken, and then the optical axis of the fixing eye that is taken is realized by the conjugate gaze ability of eyes, thus avoid in tradition fixation lamp is arranged at lens barrel the optical signal interference brought, and then produce the drawback of ghost image.
Description
Technical field
The present invention relates to a kind of hand fundus camera, particularly relate to a kind of hand fundus camera with fixation lamp.
Background technology
In order to ensure photographing high-quality human eye retina's image, when utilizing hand fundus camera shooting eye fundus image
It is required that the angle between the optical axis of the human eye's visual axis being taken and described hand-held fundus camera remains certain angle.For
This, need to arrange and allow human eye fix the sighting target watched attentively, in order to the optical axis of the eye that makes to be taken maintains certain position.
In order to solve the problems referred to above, existing hand fundus camera is directly to arrange sighting target in the optical path, and watches institute attentively
State the eyes of sighting target to be taken exactly eye.But there is following defect in this kind of method.First, a lot of patients are simple eye ill, and
And diseased eye exists and watches problem attentively, therefore this type of patient is cannot to fix the optical axis by setting sighting target in the optical path.Its
Secondary, introduce in the optical path and be used for the visible ray of fixation and can increase the intensity of veiling glare, it is easy to form ghost image.Finally, in the optical path
Arranging sighting target can make the assembling of optical system, debugging difficulty be substantially improved, and is unfavorable for assembling on a large scale production.
In view of the above problems, it is necessary to provide a kind of new hand fundus camera, to solve the problems referred to above.
Summary of the invention
For the deficiencies in the prior art, present invention solves the technical problem that and be to provide a kind of hand fundus camera, this hands
Hold fundus camera and be provided with the fixation lamp being positioned at outside described hand fundus camera, in order to regarding of the fixing eye that is not taken
Axle, and then the optical axis of the fixing eye that is taken is realized by the conjugate gaze ability of eyes.
For solving above-mentioned technical problem, technical scheme is as described below:
A kind of hand fundus camera, including housing and the lens barrel that matches with described housing, described hand fundus camera
Being additionally provided with fixation lamp, in order to the eyes that fixation is not observed, described fixation lamp is positioned at the outside of described hand fundus camera.
Further, described housing includes main part and the handle formed that stretches out from described main part side, institute
State main part matched with described lens barrel；Described fixation lamp is arranged on described main part, and is positioned at described main part with described
The side that lens barrel is matched.
Further, described fixation lamp is positioned on described lens barrel at described main part.
Further, the quantity of described fixation lamp is two, and about the axisymmetrical of described lens barrel.
Further, described hand fundus camera is additionally provided with control circuit, to control the brightness of described fixation lamp.
Further, described fixation lamp is LED or diode laser or light diffuser.
The invention has the beneficial effects as follows: compared to prior art, hand fundus camera of the present invention be provided be positioned at described
Fixation lamp outside hand fundus camera, in order to the optical axis of the fixing eye that is not taken, and then by the conjugate gaze energy of eyes
Power realizes the optical axis of the fixing eye that is taken, thus avoids in tradition fixation lamp is arranged at lens barrel the optical signal brought and do
Disturb, and then produce the drawback of ghost image.
Accompanying drawing explanation
Fig. 1 show the schematic perspective view of hand fundus camera of the present invention.
Fig. 2 is the schematic perspective view of another angle of hand fundus camera shown in Fig. 1.
The partial enlarged drawing of hand fundus camera shown in Fig. 3 bitmap 2.
Detailed description of the invention
Refer to shown in Fig. 1 and Fig. 2, hand fundus camera 100 of the present invention include housing 10 and with described housing
The lens barrel 20 that 10 match.Described housing 10 includes main part 11 and the hands formed that stretches out from described main part 11 side
Handle 12.Described main part 11 is matched with described lens barrel 20.Be provided with in described lens barrel 20 imaging lens arrangement (not shown) with
And lighting source (not shown).
Referring to shown in Fig. 2 and Fig. 3, described hand fundus camera 100 is additionally provided with fixation lamp 30.Described fixation lamp
30 outsides being positioned at described hand fundus camera 100, in order to the eyes that fixation is not observed, thus coagulated by the conjugation of eyes
The optical axis of the fixing eye that is taken is realized depending on ability.In the present embodiment, described fixation lamp 30 is arranged on described main part 11,
And be positioned at described main part 11 and the matched side of described lens barrel 20, but in other embodiments, described fixation lamp 30 is also
May be located on described lens barrel 20 at the described main part 11.In the present embodiment, the quantity of described fixation lamp 30 is 2,
And about the axisymmetrical of described lens barrel 20, but in other embodiments, the quantity of described fixation lamp 30 can also be 1
Individual, it is also possible to be more than 2.Described hand fundus camera 100 is additionally provided with control circuit (not shown), in order to control described
The brightness of fixation lamp.Described fixation lamp 30 is LED or diode laser or light diffuser.
Compared to prior art, hand fundus camera 100 of the present invention is by being arranged at described hand fundus camera 100
The fixation lamp 30 in outside and the conjugate gaze ability of eyes not only achieve the optical axis of the eye that is taken and fix, and avoid biography
The optical signal interference that system fixation lamp is brought in being arranged at described lens barrel 20, and then produce the drawback of ghost image.
Claims (6)
1. a hand fundus camera, including housing and the lens barrel that matches with described housing, it is characterised in that: described hands
Holding fundus camera and be additionally provided with fixation lamp, in order to the eyes that fixation is not observed, described fixation lamp is positioned at described hand-held optical fundus
The outside of photographing unit.
2. hand fundus camera as claimed in claim 1, it is characterised in that: described housing includes main part and from described master
Body side stretch out formed handle, described main part is matched with described lens barrel；Described fixation lamp is arranged at described master
On body, and it is positioned at the side that described main part is matched with described lens barrel.
3. hand fundus camera as claimed in claim 1, it is characterised in that: described fixation lamp is positioned on described lens barrel close
At described main part.
4. hand fundus camera as claimed in claim 2 or claim 3, it is characterised in that: the quantity of described fixation lamp is two, and
Axisymmetrical about described lens barrel.
5. hand fundus camera as claimed in claim 1, it is characterised in that: described hand fundus camera is additionally provided with control
Circuit processed, to control the brightness of described fixation lamp.
6. hand fundus camera as claimed in claim 1, it is characterised in that: described fixation lamp is LED or diode
Laser instrument or light diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610541574.9A CN106175660A (en) | 2016-07-12 | 2016-07-12 | Hand fundus camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610541574.9A CN106175660A (en) | 2016-07-12 | 2016-07-12 | Hand fundus camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106175660A true CN106175660A (en) | 2016-12-07 |
Family
ID=57474206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610541574.9A Pending CN106175660A (en) | 2016-07-12 | 2016-07-12 | Hand fundus camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106175660A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140078467A1 (en) * | 2012-03-17 | 2014-03-20 | Visunex Medical Systems Co., Ltd. | Imaging and lighting optics of a contact eye camera |
| JP2014113250A (en) * | 2012-12-07 | 2014-06-26 | Topcon Corp | Portable optometry apparatus |
| CN203987984U (en) * | 2014-03-21 | 2014-12-10 | 苏州微清医疗器械有限公司 | A kind of hand-held fundus camera |
| WO2015054672A1 (en) * | 2013-10-10 | 2015-04-16 | The Regents Of The University Of California | Ocular cellscope apparatus |
| CN104586351A (en) * | 2014-11-06 | 2015-05-06 | 苏州微清医疗器械有限公司 | Portable fundus camera |
| CN104757933A (en) * | 2015-04-17 | 2015-07-08 | 宋金岩 | Handheld type fundus camera |
| CN204950894U (en) * | 2015-09-17 | 2016-01-13 | 苏州微清医疗器械有限公司 | Hand -held type fundus camera |
-
2016
- 2016-07-12 CN CN201610541574.9A patent/CN106175660A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140078467A1 (en) * | 2012-03-17 | 2014-03-20 | Visunex Medical Systems Co., Ltd. | Imaging and lighting optics of a contact eye camera |
| JP2014113250A (en) * | 2012-12-07 | 2014-06-26 | Topcon Corp | Portable optometry apparatus |
| WO2015054672A1 (en) * | 2013-10-10 | 2015-04-16 | The Regents Of The University Of California | Ocular cellscope apparatus |
| CN203987984U (en) * | 2014-03-21 | 2014-12-10 | 苏州微清医疗器械有限公司 | A kind of hand-held fundus camera |
| CN104586351A (en) * | 2014-11-06 | 2015-05-06 | 苏州微清医疗器械有限公司 | Portable fundus camera |
| CN104757933A (en) * | 2015-04-17 | 2015-07-08 | 宋金岩 | Handheld type fundus camera |
| CN204950894U (en) * | 2015-09-17 | 2016-01-13 | 苏州微清医疗器械有限公司 | Hand -held type fundus camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |