CN205246990U - Full field of vision lens - Google Patents
Full field of vision lens Download PDFInfo
- Publication number
- CN205246990U CN205246990U CN201520992359.1U CN201520992359U CN205246990U CN 205246990 U CN205246990 U CN 205246990U CN 201520992359 U CN201520992359 U CN 201520992359U CN 205246990 U CN205246990 U CN 205246990U
- Authority
- CN
- China
- Prior art keywords
- main body
- main part
- lens
- lens main
- eyeball
- 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
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- Eyeglasses (AREA)
Abstract
The utility model relates to a full field of vision lens. It includes the lens main part, the back summit curvature radius of lens main part is 25.5-28.5mm, the lens diameter of lens main part is 45mm-50mm. The lens main part makes the rear surface radian of lens main part and the movement track radian phase -match of eyeball with the curvature radius that 25.5-28.5mm regards as summit after the lens main part for normal visual field is close to in the person's of wearing the field of vision, recovers the motion scope of near -sighted eyeball, eliminates the extension that peripheral out of focus reaches the control axis oculi, thereby slows down the intensification of the near -sighted number of degrees.
Description
Technical field
The utility model relates to a kind of lens, particularly open a kind of full visual field eyeglass.
Background technology
Traditional spectacles lens adopts toric cambered structure, and the radian of its eyeglass can not mate with the radian of eyeball, causes macula retinae centre focus, periphery out of focus, and peripheral visual field is approximately damaged 1/3, forms certain potential safety hazard to motorist and the person of going across the road.
Summary of the invention
The purpose of this utility model is to overcome the defect existing in prior art, provide a kind of visual field that can make wearer to approach normal visual field, recover the range of movement of near-sighted eyeball, eliminate periphery out of focus and reach the prolongation of controlling axis oculi, thereby slow down the full visual field eyeglass that myopia degree is deepened.
The utility model is achieved in that a kind of full visual field eyeglass, comprises eyeglass main body, it is characterized in that: the rear vertex curvature radius of described eyeglass main body is 25.5 ~ 28.5mm, and the optic diameter of described eyeglass main body is 45mm ~ 50mm.
The radian central point of the rear surface of described eyeglass main body overlaps with eyeball convolution point.
Distance between the center, rear surface of described eyeglass main body and the front surface center of eyeglass main body is 1.0 ~ 2.0mm.
The beneficial effects of the utility model are: described eyeglass main body using 25.5 ~ 28.5mm as eyeglass main body after the radius of curvature on summit; the rear surface radian of eyeglass main body and the movement locus radian of eyeball are matched; make wearer's the visual field approach normal visual field; recover the range of movement of near-sighted eyeball; eliminate periphery out of focus and reach the prolongation of controlling axis oculi, thereby slow down the intensification of myopia degree.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Position relationship schematic diagram when Fig. 2 is the utility model use between cross section and eyeball convolution point.
Wherein: 1, eyeglass main body; 2, rear surface; 3, front surface; 4, eyeball.
Detailed description of the invention
According to Fig. 1, Fig. 2, the utility model comprises eyeglass main body 1, and the rear vertex curvature radius R of described eyeglass main body 1 is 25.5 ~ 28.5mm, preferably 27mm, and the optic diameter D of described eyeglass main body is 45mm ~ 50mm. The radian central point O of the rear surface 2 of described eyeglass main body 1 overlaps with the convolution point of eyeball 4. Distance between 2 centers, rear surface of described eyeglass main body 1 and front surface 3 centers of eyeglass main body 1 is 1.0 ~ 2.0mm.
The radian of the rear surface 2 of the utility model eyeglass main body 1 and the movement locus radian of eyeball 4 match; make wearer's the visual field approach normal visual field; recover the range of movement of near-sighted eyeball, eliminate periphery out of focus and reach the prolongation of controlling axis oculi, thereby slow down the intensification of myopia degree.
Claims (3)
1. a full visual field eyeglass, comprises eyeglass main body, it is characterized in that: the rear vertex curvature radius of described eyeglass main body is 25.5 ~ 28.5mm, and the optic diameter of described eyeglass main body is 45mm ~ 50mm.
2. the full visual field according to claim 1 eyeglass, is characterized in that: the radian central point of the rear surface of described eyeglass main body overlaps with eyeball convolution point.
3. the full visual field according to claim 1 and 2 eyeglass, is characterized in that: the distance between the center, rear surface of described eyeglass main body and the front surface center of eyeglass main body is 1.0 ~ 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520992359.1U CN205246990U (en) | 2015-12-04 | 2015-12-04 | Full field of vision lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520992359.1U CN205246990U (en) | 2015-12-04 | 2015-12-04 | Full field of vision lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246990U true CN205246990U (en) | 2016-05-18 |
Family
ID=55946071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520992359.1U Expired - Fee Related CN205246990U (en) | 2015-12-04 | 2015-12-04 | Full field of vision lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205246990U (en) |
-
2015
- 2015-12-04 CN CN201520992359.1U patent/CN205246990U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20201204 |