CN2157525Y - Vision aid - Google Patents
Vision aid Download PDFInfo
- Publication number
- CN2157525Y CN2157525Y CN 93207834 CN93207834U CN2157525Y CN 2157525 Y CN2157525 Y CN 2157525Y CN 93207834 CN93207834 CN 93207834 CN 93207834 U CN93207834 U CN 93207834U CN 2157525 Y CN2157525 Y CN 2157525Y
- Authority
- CN
- China
- Prior art keywords
- magnifier
- arc surface
- handle
- typoscope
- utility
- 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.)
- Expired - Fee Related
Links
- 230000004438 eyesight Effects 0.000 title description 3
- 201000009487 Amblyopia Diseases 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000030214 innervation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Lenses (AREA)
Abstract
A typoscope mainly comprises a magnifier (1) and a handle (5), wherein the bottom of the magnifier is an arc surface (2), and a shunting line (3) is engraved on the arc surface (2). The visual aid can be directly placed on the paper to move, has the function of magnifying the whole line, and is particularly suitable for reading by patients with amblyopia.
Description
The utility model relates to a kind of magnifier, is a kind of utensil of reading use for the amblyopia patient.
Current, children's myopia using is very general, and this has caused the attention of various circles of society.All correct defects of vision do not reach normal value (eyesight≤0.8) and eyes do not have an organic disease promptly be called amblyopia.At present, many amblyopia patients read by means of circular magnifier.Because circular magnifier can not amplify by full line, in addition, circular magnifier must leave written certain altitude and could amplify; And it is different to leave written distance, and enlargement factor is also different.Owing to when hand-held circular magnifier is read, can not guarantee circular magnifier and the same distance of written maintenance, therefore, writing can be either large or small, gives a kind of rolling innervation of people and revolve dizzy sense.
The purpose of this utility model be to provide a kind of can be placed directly in written go up that move, that have the full line enlarging function, aim at the typoscope that the amblyopia patient reads use.
The utility model is made up of magnifier (1) and handle (5).Have simple in structure, cost is low and characteristics such as easy to use.
Concrete structure of the present utility model is described by following examples and accompanying drawing thereof.
Figure one is a front view of the present utility model.
Figure two is the A-A cut-open view in the front view.
Figure three is a vertical view of the present utility model.
With reference to figure one, figure two, figure three, this typoscope is made up of magnifier (1) and handle (5).Wherein, the section of magnifier (1) is the semicircular body of a rule; The arc surface (2) of its bottom design for rising to fovea superior.This arc surface (2) can prevent in use effectively, and the magnifier bottom is by snag, thereby guaranteed the transparency and the sharpness of magnifier.On the arc surface (2) of magnifier (1), also be carved with the branch line (3) of a redness so that branch when reading.From vertical view, the left that this minute line (3) is positioned at handle (5) departs from the below that magnifier (1) is justified center line (4), and parallel with the circle center line.
Magnifier (1) can adopt PMMA plastics grinding-polishing to form.Handle (5) can adopt that ABS plastic is Unitarily molded to form.
Claims (2)
1, a kind of typoscope is made up of magnifier (1) and handle (5), and the bottom that it is characterized in that magnifier (1) is an arc surface (2).
2, typoscope according to claim 1 is characterized in that being carved with on the arc surface (2) the branch line (3) of a redness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93207834 CN2157525Y (en) | 1993-03-31 | 1993-03-31 | Vision aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93207834 CN2157525Y (en) | 1993-03-31 | 1993-03-31 | Vision aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157525Y true CN2157525Y (en) | 1994-02-23 |
Family
ID=33790436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93207834 Expired - Fee Related CN2157525Y (en) | 1993-03-31 | 1993-03-31 | Vision aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157525Y (en) |
-
1993
- 1993-03-31 CN CN 93207834 patent/CN2157525Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |