CN207640378U - Visual field instrument stimulation screen structure - Google Patents
Visual field instrument stimulation screen structure Download PDFInfo
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- CN207640378U CN207640378U CN201820546394.4U CN201820546394U CN207640378U CN 207640378 U CN207640378 U CN 207640378U CN 201820546394 U CN201820546394 U CN 201820546394U CN 207640378 U CN207640378 U CN 207640378U
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- fixation lamp
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Abstract
Visual field instrument stimulation screen structure, shield ontology including stimulation, it is equipped with central fixation point in the middle part of stimulation screen ontology, stimulation screen body upper part is equipped with the first fixation lamp, the second fixation lamp, third fixation lamp, the 4th fixation lamp, the 5th fixation lamp, the 6th fixation lamp, the 7th fixation lamp, the 8th fixation lamp, the 9th fixation lamp, the tenth fixation lamp, the 11st fixation lamp, the 12nd fixation lamp, and the first fixation lamp, the second fixation lamp, third fixation lamp, the 4th fixation lamp are from left to right arranged in order and from small to large on the right side of centrally located fixation points.When use, human eye watches place attentively by human eye and watches stimulation screen attentively, open the fixation lamp of different location, eyeball follows the fixation lamp lighted and rotates, the variation of retina retina rest potential under the conditions of light and dark adaptation when can measure Rotation of eyeball different angle respectively, multiple numerical value are provided for clinical test for reference, also provide help for the subdivision of scientific research institutions research.
Description
Technical field
The utility model belongs to visual electrophysiology field, specifically a kind of visual field instrument stimulation screen structure.
Background technology
Electroculogram is to measure the existing view resting membrane potential between retinal pigment epithelium and photoreceptor cell.According to
The variation of retina rest potential under the conditions of light and dark adaptation can reflect the photochemical reaction and retina of photoreceptor cell
The function status of outer layer, it can also be used to measure eyeball position and oculomotor physiological change.The electricity reaction of retina is to come from
Complicated retina neural desmachyme.Retinal photoreceptor epithelium be positive potential, pigment epithelium direction be negative potential, two layers
Between potential difference up to 60mV.Positive potential can be to cornea be forwarded to, and negative potential passes to behind sclera backward.When eyeball turns to endocanthion angle
When, positive cornea shifts near the nearly angle of eye lateral of rear Ghandler motion of endocanthion angle and cathode, otherwise just obtains opposite knot to angle of eye lateral rotation
Fruit.Become with the rotation of eyeball in electric current that is dark, respectively being set detected by an electrode at the inside and outside corner of the eyes angle of examinee under the conditions of light adaptation
Change is exactly electroculogram.
Utility model content
The utility model provides a kind of visual field instrument stimulation screen structure, to solve defect in the prior art.
The utility model is achieved by the following technical programs：
Structure, including stimulation screen ontology are shielded in visual field instrument stimulation, and stimulation screen ontology middle part is equipped with central fixation point, and stimulation screen is originally
Body top be equipped with the first fixation lamp, the second fixation lamp, third fixation lamp, the 4th fixation lamp, the 5th fixation lamp, the 6th fixation lamp,
7th fixation lamp, the 8th fixation lamp, the 9th fixation lamp, the tenth fixation lamp, the 11st fixation lamp, the 12nd fixation lamp, first is solid
Depending on lamp, the second fixation lamp, third fixation lamp, the 4th fixation lamp is from left to right arranged in order from small to large and centrally located fixation point
Right side, the 5th fixation lamp, the 6th fixation lamp, the 7th fixation lamp, the 8th fixation lamp is arranged in order from top to bottom from small to large and position
On the upside of the central fixation point, lines that the first fixation lamp, the second fixation lamp, third fixation lamp, the 4th fixation lamp are arranged in and the
The lines that five fixation lamps, the 6th fixation lamp, the 7th fixation lamp, the 8th fixation lamp are arranged in are mutually perpendicular to, the 9th fixation lamp, the tenth
Fixation lamp, the 11st fixation lamp, the 12nd fixation lamp are arranged in order from small to large, the 9th fixation lamp, the tenth fixation lamp, the 11st
Fixation lamp, the 12nd fixation lamp tilt distribution, the 9th fixation lamp, the tenth fixation lamp, the 11st fixation lamp, the 12nd fixation lamp connect
The angle that straight line and the first fixation lamp, the second fixation lamp, third fixation lamp, the 4th fixation lamp connect connects between straight line is 135 °.
Visual field instrument stimulation screen structure as described above, the stimulation screen body internal surface are equipped with coating.
Visual field instrument stimulation screen structure as described above, the material of the coating is pure barium sulfate.
The utility model has the advantages that：When the utility model is used, central fixation point, the first fixation lamp, the second fixation lamp,
5th fixation lamp, the 6th fixation lamp, the 9th fixation lamp and the tenth fixation lamp, human eye watch place attentively and connect into the 7th with central fixation point
Straight line, the first fixation lamp watch place attentively with human eye and connect into first straight line, and the second fixation lamp watches place attentively with human eye and connects into second directly
Line, the 7th straight line, first straight line and second straight line are parallel with horizontal plane, and the 7th straight line is at the first angle with first straight line institute
5-10 °, first straight line is 5-105 ° at the second angle with second straight line, in use, human eye watches place attentively by human eye watches thorn attentively
Swash screen, turns on the fixation lamp of different location, eyeball follows the fixation lamp lighted and rotates, and can measure Rotation of eyeball difference angle respectively
The variation of retina retina rest potential under the conditions of light and dark adaptation when spending provides multiple numerical value for ginseng for clinical test
It examines, also provides help for the subdivision of scientific research institutions research.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
Visual field instrument stimulation screen structure, as shown, including stimulation screen ontology 1,1 middle part of stimulation screen ontology is equipped with central fixation
Point 2, it is solid that 1 top of stimulation screen ontology is equipped with the first fixation lamp 3, the second fixation lamp 4, third fixation lamp 5, the 4th fixation lamp the 6, the 5th
Depending on lamp 7, the 6th fixation lamp 8, the 7th fixation lamp 9, the 8th fixation lamp 10, the 9th fixation lamp 12, the tenth fixation lamp the 13, the 11st
Fixation lamp 14, the 12nd fixation lamp 15, the first fixation lamp 3, the second fixation lamp 4, third fixation lamp 5, the 4th fixation lamp 6 are from small
To being from left to right arranged in order greatly and the right side of centrally located fixation point 2, the 5th fixation lamp 7, the 6th fixation lamp 8, the 7th fixation lamp
9, the 8th fixation lamp 10 is arranged in order and from top to bottom from small to large on the upside of centrally located fixation point 2, the first fixation lamp 3, second
The lines and the 5th fixation lamp 7, the 6th fixation lamp 8, the 7th fixation that fixation lamp 4, third fixation lamp 5, the 4th fixation lamp 6 are arranged in
The lines that lamp 9, the 8th fixation lamp 10 are arranged in are mutually perpendicular to, the 9th fixation lamp 12, the tenth fixation lamp 13, the 11st fixation lamp
14, the 12nd fixation lamp 15 is arranged in order from small to large, the 9th fixation lamp 12, the tenth fixation lamp 13, the 11st fixation lamp 14,
12 fixation lamp, 15 tilt distribution, the 9th fixation lamp 12, the tenth fixation lamp 13, the 11st fixation lamp 14, the 12nd fixation lamp 15
Angle between the straight line of connection and the first fixation lamp 3, the second fixation lamp 4, third fixation lamp 5, the 4th fixation lamp 6 connection straight line
It is 135 °.When the utility model is used, central fixation point 2, the first fixation lamp 3, the second fixation lamp 4, the 5th fixation lamp the 7, the 6th
Fixation lamp 9, the 9th fixation lamp 12 and the tenth fixation lamp 13, human eye watch place and central fixation point attentively and connect into the 7th straight line, and first
Fixation lamp 3 and human eye watch place attentively and connect into first straight line, and the second fixation lamp 4 and human eye watch place attentively and connect into second straight line, and the 7th
Straight line, first straight line and second straight line are parallel with horizontal plane, and the 7th straight line is 5-10 ° at the first angle with first straight line,
First straight line is 5-105 ° at the second angle with second straight line institute, in use, human eye watches place attentively by human eye watches stimulation screen attentively, is beaten
The fixation lamp of different location is opened, eyeball follows the fixation lamp lighted and rotates, regarded when can measure Rotation of eyeball different angle respectively
The variation of nethike embrane retina rest potential under the conditions of light and dark adaptation provides multiple numerical value for reference for clinical test, also for
The subdivision research of scientific research institutions provides help.
Specifically, as shown, 1 inner surface of stimulation screen ontology described in the present embodiment is equipped with coating 11.Coating 11 is made
Make it is simple for process, in light-illuminating, can stimulation screen 1 inner surface of ontology formed uniform light illumination.
Specifically, as shown, the material of the coating 11 described in the present embodiment is pure barium sulfate.Since barium sulfate is white
, light is not absorbed, for diffusing reflection coefficient close to 1, reflectivity is preferable, is comparatively ideal material.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement；And these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (3)
1. visual field instrument stimulation screen structure, it is characterised in that：Including stimulation screen ontology (1), center is equipped in the middle part of stimulation screen ontology (1)
Fixation point (2), stimulation screen ontology (1) top are equipped with the first fixation lamp (3), the second fixation lamp (4), third fixation lamp (5), the 4th
Fixation lamp (6), the 5th fixation lamp (7), the 6th fixation lamp (8), the 7th fixation lamp (9), the 8th fixation lamp (10), the 9th fixation lamp
(12), the tenth fixation lamp (13), the 11st fixation lamp (14), the 12nd fixation lamp (15), the first fixation lamp (3), the second fixation
Lamp (4), third fixation lamp (5), the 4th fixation lamp (6) is from left to right arranged in order from small to large and centrally located fixation point (2)
Right side, the 5th fixation lamp (7), the 6th fixation lamp (8), the 7th fixation lamp (9), the 8th fixation lamp (10) are from small to large from top to bottom
It is arranged in order and on the upside of centrally located fixation point (2), the first fixation lamp (3), the second fixation lamp (4), third fixation lamp (5), the
The lines and the 5th fixation lamp (7), the 6th fixation lamp (8), the 7th fixation lamp (9), the 8th fixation lamp that four fixation lamps (6) are arranged in
(10) lines being arranged in are mutually perpendicular to, the 9th fixation lamp (12), the tenth fixation lamp (13), the 11st fixation lamp (14), the tenth
Two fixation lamps (15) are arranged in order from small to large, the 9th fixation lamp (12), the tenth fixation lamp (13), the 11st fixation lamp (14),
12nd fixation lamp (15) tilt distribution, the 9th fixation lamp (12), the tenth fixation lamp (13), the 11st fixation lamp (14), the tenth
The straight line and the first fixation lamp (3), the second fixation lamp (4), third fixation lamp (5), the 4th fixation lamp of two fixation lamps (15) connection
(6) angle connected between straight line is 135 °.
2. visual field instrument stimulation screen structure according to claim 1, it is characterised in that：Described stimulation screen ontology (1) the interior table
Face is equipped with coating (11).
3. visual field instrument stimulation screen structure according to claim 2, it is characterised in that：The material of the coating (11) is pure
Barium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820546394.4U CN207640378U (en) | 2018-04-17 | 2018-04-17 | Visual field instrument stimulation screen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820546394.4U CN207640378U (en) | 2018-04-17 | 2018-04-17 | Visual field instrument stimulation screen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207640378U true CN207640378U (en) | 2018-07-24 |
Family
ID=62876434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820546394.4U Active CN207640378U (en) | 2018-04-17 | 2018-04-17 | Visual field instrument stimulation screen structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207640378U (en) |
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2018
- 2018-04-17 CN CN201820546394.4U patent/CN207640378U/en active Active
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