CN207264043U - A kind of changeable colour myopia sunglasses ophthalmic len - Google Patents
A kind of changeable colour myopia sunglasses ophthalmic len Download PDFInfo
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- CN207264043U CN207264043U CN201721040186.9U CN201721040186U CN207264043U CN 207264043 U CN207264043 U CN 207264043U CN 201721040186 U CN201721040186 U CN 201721040186U CN 207264043 U CN207264043 U CN 207264043U
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Abstract
The utility model belongs to Optical Techniques for Spectacles field, more particularly to a kind of changeable colour myopia sunglasses ophthalmic len；The eyeglass that the technical program is selected is layer structure, includes substrate layer, photochromic reflecting layer, stiffened protective layer successively from eyeglass outer surface to inner surface；It is the dual-use function that near-sighted glasses and sunglasses can be achieved with a piece of eyeglass, and due to the addition in photochromic reflecting layer, so that eyeglass color burn under strong light reduces light penetration, then it is changed into transparent high transmittance film layer under low light environment, by the aspherisation to substrate negative camber, the weight of significantly thinned eyeglass.Mean power change changes less than 0.40D and fairing in eyeglass geometric center regional diameter 55mm, avoids the dizzy problem of wearing being likely to occur by focal power saltus step.
Description
Technical field
The utility model belongs to Optical Techniques for Spectacles field, more particularly to a kind of myopia sunglasses ophthalmic len.
Background technology
Myopia sunglasses piece can both keep out outdoor strong sunlight, reduce stimulation of the blue violet light to eyeground in strong light, again
Can be with the eyesight of myopia correction patient.Myopia sunglasses the most common form has：
Plate-hung type：It is exactly by the attachment device carry such as magnetic, hook etc., rotatable hinge on the spectacles of oneself
Sunglasses intermediate plate；
Integral type：Direct nearly mirror surface plates reflectance coating.
Plate-hung type design can facilitate user outdoors either interior when scene switch carry or removal sunglasses lenses sun clips
Piece, from it is effective avoid user indoors, cloudy day or night the sunglasses eyeglass perspective rate when ambient light is insufficient not enough increases
Add and use asthenopia, and then affect vision, but this form also has the drawbacks of obvious, this eyeglass is substantially two panels eyeglass
Combination, when sunglasses need not be used, it is necessary to unload or dig sunglasses lenses upwards, due to needing individually to sunglasses lenses
Processing so reduces user experience.
Directly nearly mirror surface plates reflectance coating to integral type, is so to have accomplished to be directly realized by too with a piece of eyeglass a little
Positive mirror and myoporthosis are not suitable for interior still.In addition, due to the demand of fashion, often curved big using base, diameter is big
Eyeglass be assembled into mirror, so that the problem of thickness of eyeglass is high and weight is big is caused, with eyeglass index of refraction (the also referred to as number of degrees)
Increase, the edge of eyeglass can thicken substantially, cause the heavy load of wearer's bridge of the nose, while have an effect on beauty.
According to the feature of human eye, during by the glasses of wearing to correct defects of vision, the region mainly corrected is played at center
In the range of 30mm, this region is referred to as to regard burnt center；Distance center 30-55mm is in buffering area, the focal power pair in this region
Vision correction effect is little, but visual field can be caused to distort if focal power is undergone mutation, and can cause spinning sensation.
Utility model content
The utility model be directed to it is a kind of can be suitable at the same time strong laser field scape and low light environment to regard burnt buffering area abnormal
The myopia sunglasses piece to diminish.
To achieve these goals, the utility model adopts the following technical solution：A kind of changeable colour myopia sunglasses eye
Eyeglass, the eyeglass are layer structure, include substrate layer, photochromic reflecting layer successively from eyeglass outer surface to inner surface, add
Hard protective layer；The substrate layer is formed by substrate positive camber and substrate negative camber；The wherein described substrate positive camber is sphere,
Substrate negative camber is aspherical；Mean power variable quantity in the aspherical geometric center diameter 55mm regional extents does not surpass
Cross 0.40D and be fairing change.
More preferably technical solution is on the basis of above-mentioned technical proposal：Above-mentioned aspherical geometric center diameter 30mm regions model
Mean power variable quantity in enclosing is no more than 0.06D.What so design can make to play main correcting regards burnt center
Domain focal power change is gentler, further mitigates spinning sensation when wearing.
Due to the use of above-mentioned technical proposal, its remarkable advantage is as follows compared with prior art for the utility model：With a piece of
Eyeglass is the dual-use function that near-sighted glasses and sunglasses can be achieved, and due to the addition in photochromic reflecting layer so that eyeglass exists
Color burn reduces light penetration under strong light, is then changed into transparent high transmittance film layer under low light environment, by substrate
The aspherisation of negative camber, is thinned the weight of eyeglass significantly.Mean power changes in eyeglass geometric center regional diameter 55mm
Change less than 0.40D and fairing, avoid the dizzy problem of wearing being likely to occur by focal power saltus step.
Brief description of the drawings
Fig. 1 eyeglasses are layer structure schematic diagram；
Burnt center and buffering area distribution schematic diagram are regarded on Fig. 2 eyeglasses；
Fig. 3 eyeglasses outer surfaces and inner surface schematic diagram；
Wherein 1 is eyeglass, and 2 be substrate layer, and 3 be photochromic reflecting layer, and 4 be stiffened protective layer, and 5 be geometric center diameter
55mm regions, 6 be that 7 be eyeglass outer surface, and 8 be that eyeglass inner surface is aspherical, and 9 be that eyeglass inner surface is ball regarding burnt center
Face.
Embodiment
The utility model is described further with reference to the accompanying drawings and embodiments.
Embodiment one：A kind of changeable colour myopia sunglasses ophthalmic len, the eyeglass are layer structure, as shown in Figure 1, from
1 outer surface of eyeglass to inner surface includes substrate layer 2, thickness range 1mm-10mm, photochromic reflecting layer 3, thickness 1 successively
μm -20 μm, stiffened protective layer 4 coats stiffened protective layer by the way of immersion on the surface in photochromic reflecting layer, and thickness is
1μm-20μm；The substrate layer is made of substrate positive camber and substrate negative camber；The wherein described substrate positive camber is sphere,
Substrate negative camber is aspherical；Being averaged in the range of the aspherical geometric center diameter 55mm regions 5 as shown in Fig. 2 schematic diagrames
Diopter variable quantity is no more than 0.40D and is fairing change, state in aspherical geometric center diameter 30mm regional extents 6 it is flat
Equal diopter variable quantity is no more than 0.06D.Aspherical equation herein is the even aspheric surface of rotational symmetry, and expression formula is as follows,
This is also common aspherical representation in optical design.
Curvature centered on wherein c, k are secondary term coefficient, a1, a2, a3... it is high-order term.
The eyeglass of above-mentioned technical proposal color burn under strong light, reduces light penetration, is then changed under low light environment
Transparent high transmittance film layer.Eyeglass can not only realize effective filtering to blue light, but also can be used as sunglasses and richness
There is the color changeable effect under different scenes.
Embodiment two：A kind of changeable colour myopia sunglasses ophthalmic len described in embodiment one, wherein photochromic anti-
Penetrate the royal purple x ray fluoroscopy x score of layer not Wei wave band 280nm-380nm, transmittance≤0.5%；380nm- 420nm≤20%.
Embodiment three：A kind of changeable colour myopia sunglasses ophthalmic len described in embodiment one, photochromic reflecting layer
For the polymethacrylates with spiropyran groups, spiropyran groups dosage is 0.05 ‰ -18 ‰.Spiropyran groups have light
Cause the color shifting properties therefore performance with selective filter blue violet light.
When no blue violet light by when, the score of royal purple x ray fluoroscopy x not Wei wave band 280nm~380nm, transmittance >=30%；
380nm~420nm >=50%；
When blue violet light continues through, the score of royal purple x ray fluoroscopy x not Wei wave band 280nm~380nm, transmittance≤0.3%；
380nm~420nm≤18%.
Example IV：A kind of changeable colour myopia sunglasses ophthalmic len described in embodiment one, stiffened protection
It is one or two kinds of in nano silicon dioxide sol gel emulsion and alundum (Al2O3) collosol and gel lotion that layer, which uses,
It is compound.
Embodiment five：A kind of changeable colour myopia sunglasses ophthalmic len described in embodiment one, lens surface, which also has, to be plated
Film layer.Film plating layer can be divided into four layers, be followed successively by silica, zirconium oxide, alundum (Al2O3), tin indium oxide and fluoride, and film layer is total
Thickness is 1nm~20nm.The film layer is visible ray anti-reflection film, can be effectively increased visible light wave range transmitance, be more suitable for environment
Insufficient light scene.
Embodiment six：A kind of changeable colour myopia sunglasses ophthalmic len described in embodiment one, the lower section are regarding near
The lower plus light in area is 0.50D~2.00D.Add luminosity according to the design of consumer's optometry situation is lower, the same of auxiliary can be adjusted obtaining
When reduce periphery astigmatism interference.
Embodiment seven：A kind of changeable colour myopia sunglasses ophthalmic len described in embodiment one, its optic diameter are
70mm, inner surface and outer surface are as shown in figure 3, the radius of curvature R 1=104.6mm of its outer surface 7, inner surface are aspherical 8
When center curvature radius R2=130.75mm and central bore 50mm in the range of focal power be transformed to 0.40D, its material
Refractive index N=1.523, center thickness 4mm, the relation between thickness and half bore between inner surface and outer surface are as shown in table 1；
It is sphere 9 and thickness when radius is 130.75mm that inner surface is given in table.It can be seen that using the technical program from table
Inner surface is the thickness that the thickness at aspherical 8 lens edge reduces 20% compared with inner surface is 9 edge thickness of sphere, this
Sample can effectively mitigate eyeglass weight, increase comfort.
1. embodiment of table, seven lens structure design parameter
For products application, sunglasses thinned greatly is more dyeing sunglasses, because current color-changing lens have many lack
Point, such as in-car can not change colour and fade slow.The light-sensitive glasses of the technical program are that have effect to light intensity, and ultraviolet is not made
With so the very weak place of this ultraviolet in the car, can use.
Claims (6)
1. a kind of changeable colour myopia sunglasses ophthalmic len, it is characterised in that the eyeglass is layer structure, from eyeglass outer surface
Include substrate layer, photochromic reflecting layer, stiffened protective layer successively to inner surface；The substrate layer is by substrate positive camber and base
Piece negative camber forms；The wherein described substrate positive camber is sphere, and substrate negative camber is aspherical；The aspherical geometric center
Mean power variable quantity in diameter 55mm regional extents is less than or equal to 0.40D and is fairing change.
2. changeable colour myopia sunglasses ophthalmic len according to claim 1, it is characterised in that：In the aspherical geometry
Mean power variable quantity in core diameter 30mm regional extents is less than or equal to 0.06D.
3. changeable colour myopia sunglasses ophthalmic len according to claim 1, it is characterised in that：The wherein described light-induced variable
Color reflecting layer is the polymethacrylates with spiropyran groups.
4. changeable colour myopia sunglasses ophthalmic len according to claim 1, it is characterised in that：The stiffened protective layer
Use is that one or two kinds of in nano silicon dioxide sol gel emulsion and alundum (Al2O3) collosol and gel lotion answers
Close.
5. changeable colour myopia sunglasses ophthalmic len according to claim 1, it is characterised in that：Lens surface also has plated film
Layer.
6. changeable colour myopia sunglasses ophthalmic len according to claim 5, it is characterised in that：The film plating layer is four
Layer, is followed successively by silica, zirconium oxide, alundum (Al2O3), tin indium oxide and fluoride, film layer total thickness is 1nm~20nm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721040186.9U CN207264043U (en) | 2017-08-18 | 2017-08-18 | A kind of changeable colour myopia sunglasses ophthalmic len |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721040186.9U CN207264043U (en) | 2017-08-18 | 2017-08-18 | A kind of changeable colour myopia sunglasses ophthalmic len |
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| CN207264043U true CN207264043U (en) | 2018-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231284A (en) * | 2021-05-19 | 2021-08-10 | 漳州市澳捷光学科技有限公司 | Customized ultraviolet color development high-end lens and production method thereof |
-
2017
- 2017-08-18 CN CN201721040186.9U patent/CN207264043U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231284A (en) * | 2021-05-19 | 2021-08-10 | 漳州市澳捷光学科技有限公司 | Customized ultraviolet color development high-end lens and production method thereof |
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