CN209417458U - Sandwich style Alvarez zoom intelligent glasses - Google Patents
Sandwich style Alvarez zoom intelligent glasses Download PDFInfo
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- CN209417458U CN209417458U CN201821397446.2U CN201821397446U CN209417458U CN 209417458 U CN209417458 U CN 209417458U CN 201821397446 U CN201821397446 U CN 201821397446U CN 209417458 U CN209417458 U CN 209417458U
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Abstract
The utility model discloses a kind of sandwich style Alvarez zoom intelligent glasses, including mirror holder and eyeglass；Eyeglass is all made of an Alvarez free surface lens group, and an Alvarez free surface lens group is made of three lens；Two, the outside lens of every group of eyeglass are fixed on mirror holder, and form sealing space, and intermediate lens are fixed on the guide rail of mirror holder by sliding block, and intermediate lens are slided along the direction perpendicular to optical axis；The mirror holder front two sides are respectively equipped with one or more range sensors, realize according to the distance of wearer's object observing and automatically adjust focal power, enable a user to the state observation target with the most comfortable, alleviate the fatigue of eye muscle.
Description
Technical field
The utility model relates to a kind of intelligent glasses, and in particular to a kind of sandwich style Alvarez zoom intelligent glasses.
Background technique
Country defends to reveal in the special news news conference that strong committee holds on June 4th, 2018: China's myopia number alreadys exceed
4.5 hundred million, the myopia morbidity presentation age is early, be in progress fast, far-gone trend.Wherein, pupil's myopia disease incidence is about 30%, greatly
Student is about 90%.Close eye is considered as influencing the first risk factor of development of myopia.Electronic product is got at present
To enter in people's lives more, teenager is the critical period of refractive status development in the stage, and learns heavy period,
The self-control that teenager uses electronic product is poor, and it is increasing to cause adolescent myopia specific gravity, near-sighted phenomenon
Increasingly become younger.
In China, presbyopia's phenomenon more makes a kind of universal phenomenon, and presbyopia and age growth are closely related, usually at 45 years old
Front and back starts to show, and deepens year by year.According to recently for ground such as Shanghai, Beijing, Guangzhou, Hangzhou, Nanjing 50 years old or more resident
One-to-one investigational data show that most probably 50 years old or more crowd is influenced by presbyopia, and the ratio in Shanghai and Nanjing is even more high
Up to nearly 90%.More it is a concern that China presbyopia crowd gradually moves towards rejuvenation.Eye natural crystal just looks like one
Portion's machine, it may be because is increased and natural aging using the time, it is also possible to because overusing and accelerated ageing.Due to the modern times
Social people rely on the various electronic equipment height such as computer, mobile phone, TV, while life and work pressure constantly increases, people
Universal excess eye-using is chronically at visual fatigue state, therefore is easier that crystal elasticity is caused to accelerate to weaken, so that presbyopia sends out
The sick age constantly shifts to an earlier date.
Patients with presbyopia needs are used alternatingly by Progressive addition lenses or more pair of glasses is just able to satisfy different visual demands.
Some patients with presbyopia may possess a secondary reading spectacles simultaneously, a pair sees Computer glasses, a secondary outdoor glasses and a passenger side
Glasses etc. are sailed, What is more to stay at home and the different places such as company are respectively equipped with a whole set of glasses, as one can imagine, it can be to normal
Life brings great trouble.
Utility model content
In view of the deficiencies of the prior art, the present invention proposes a kind of sandwich style Alvarez zoom intelligent glasses.
A kind of sandwich style Alvarez zoom intelligent glasses, including mirror holder and eyeglass；Eyeglass all by an Alvarez from
It is made of curve lens group, an Alvarez free surface lens group is made of three lens；Two, the outside of every group of eyeglass is thoroughly
Mirror is fixed on mirror holder, and forms sealing space, and intermediate lens are fixed on the guide rail of mirror holder by sliding block, intermediate lens
It is slided along the direction perpendicular to optical axis；
Each Alvarez free surface lens polynomial equation are as follows:
Wherein, z is two polynomial surface height, and A is multinomial coefficient, and f (x, y) is higher order polynomial.
F (x, y)=b1xy4+b2x3y2+b3x5+b4xy6+b5x3y4+b6x5y2+b7x7+…
Wherein, b1,b2,b3... it is higher order polynomial coefficient.
Generate focal length are as follows:
Wherein, δ is two Alvarez lens combination focal powers, and A is multinomial coefficient, and 2 δ are two Alvarez lens
Between relative movement distance, n be Alvarez lens Refractive Index of Material.
Preferably, the mirror holder front two sides are respectively equipped with one or more range sensors, the distance is passed
Sensor is connect with control circuit module；The control circuit module is connect with driving motor, and the driving motor passes through drive
Dynamic screw thread pair driving sliding block sliding.
Preferably, two, the outside of every group of eyeglass lens contain a polynomial free curved surface, and polynomial surface
Positioned at the surface adjacent with intermediate Alvarez lens, the surface far from intermediate Alvarez lens be plane, spherical surface or
Spherical surface is aspherical；Intermediate former and later two faces of Alvarez lens are polynomial free curved surface.
Preferably, two, the outside of every group of eyeglass lens contain a polynomial free curved surface, and polynomial surface
Positioned at the surface far from intermediate Alvarez lens, the surface adjacent with intermediate Alvarez lens be plane, spherical surface or
Person's spherical surface is aspherical；Intermediate former and later two faces of Alvarez lens are polynomial free curved surface.
Preferably, two, the outside of every group of eyeglass lens contain a polynomial free curved surface, two, outside lens
In one of eyeglass polynomial surface be located at the surface adjacent with intermediate Alvarez lens, another eyeglass and intermediate
The separate surface of Alvarez lens be polynomial surface；Intermediate former and later two faces of Alvarez lens are multinomial freedom
Curved surface；The residual surface of two lens in outside is that plane, spherical surface or spherical surface are aspherical.
Preferably, the surface of three lens is polynomial surface.
The utility model, which has the advantages that realize according to the distance of wearer's object observing, automatically adjusts light focus
Degree, enables a user to the state observation target with the most comfortable, alleviates the fatigue of eye muscle, eyesight normal for teenager
For user, pre- myopic-preventing purpose can achieve；For the elderly's patients with presbyopia, patients with presbyopia can be convenient
Distant place and target nearby can clearly be seen clearly simultaneously.
Closed lens structure is formed using sandwich structure, avoids dust, steam enters in eyeglass gap；It adopts simultaneously
With multiple polynomial free curved surfaces, change the surface of each free form surface more gentle, the shape of optical mirror slip is more suitable for
Produce in enormous quantities.
Detailed description of the invention
Fig. 1 intelligence Zoom glasses system construction drawing.
Fig. 2 (a) is focal power sandwich structure when being 0, front and back eyeglass polynomial free curved surface are located at close to intermediate eyeglass
The Alvarez variable focus lens package schematic diagram on surface；
Fig. 2 (b) is that focal power is timing sandwich structure, and front and back eyeglass polynomial free curved surface is located at close to intermediate eyeglass
The Alvarez variable focus lens package schematic diagram on surface；
Sandwich structure when Fig. 2 (c) is negative for focal power, front and back eyeglass polynomial free curved surface are located at close to intermediate eyeglass
The Alvarez variable focus lens package schematic diagram on surface；
Fig. 3 (a) is focal power sandwich structure when being 0, front and back eyeglass polynomial free curved surface are located remotely from intermediate eyeglass
Surface Alvarez variable focus lens package schematic diagram；
Fig. 3 (b) is that focal power is timing sandwich structure, and front and back eyeglass polynomial free curved surface is located remotely from intermediate eyeglass
Surface Alvarez variable focus lens package schematic diagram；
Sandwich structure when Fig. 3 (c) is negative for focal power, front and back eyeglass polynomial free curved surface are located remotely from intermediate eyeglass
Surface Alvarez variable focus lens package schematic diagram；
Fig. 4 (a) is focal power sandwich structure when being 0, front lens polynomial free curved surface are located at close to intermediate eyeglass
Surface, rear lens polynomial free curved surface are located remotely from the Alvarez variable focus lens package schematic diagram on the surface of intermediate eyeglass；
Fig. 4 (b) is that focal power is timing sandwich structure, and front lens polynomial free curved surface is located at close to intermediate eyeglass
Surface, rear lens polynomial free curved surface are located remotely from the Alvarez variable focus lens package schematic diagram on the surface of intermediate eyeglass；
Sandwich structure when Fig. 4 (c) is negative for focal power, front lens polynomial free curved surface are located at close to intermediate eyeglass
Surface, rear lens polynomial free curved surface are located remotely from the Alvarez variable focus lens package schematic diagram on the surface of intermediate eyeglass；
Fig. 5 (a) is focal power sandwich structure when being 0, front lens polynomial free curved surface are located remotely from intermediate eyeglass
Surface, the polynomial free curved surface of rear lens are located at the Alvarez variable focus lens package schematic diagram close to the surface of intermediate eyeglass；
Fig. 5 (b) is that focal power is timing sandwich structure, and front lens polynomial free curved surface is located remotely from intermediate eyeglass
Surface, the polynomial free curved surface of rear lens are located at the Alvarez variable focus lens package schematic diagram close to the surface of intermediate eyeglass；
Sandwich structure when Fig. 5 (c) is negative for focal power, front lens polynomial free curved surface are located remotely from intermediate eyeglass
Surface, the polynomial free curved surface of rear lens are located at the Alvarez variable focus lens package schematic diagram close to the surface of intermediate eyeglass；
Fig. 6 (a) is focal power when being 0 in sandwich structure, and six surfaces of three eyeglasses are polynomial free curved surface；
Fig. 6 (b) is that focal power is in timing sandwich structure, and six surfaces of three eyeglasses are that multinomial is freely bent
Face；
When Fig. 6 (c) is negative for focal power in sandwich structure, six surfaces of three eyeglasses are that multinomial is freely bent
Face；
In Fig. 7 sandwich structure, interior outer lens are fixed, and interior eyeglass can be moved along the direction perpendicular to optical axis, inside and outside
The polynomial free curved surface of eyeglass is located at the operating mode close to the surface of intermediate lens.
In Fig. 8 sandwich structure, interior outer lens are fixed, and interior eyeglass can be moved along the direction perpendicular to optical axis, inside and outside
The polynomial free curved surface of eyeglass is located at the operating mode of foremost and rearmost two surfaces.
In Fig. 9 sandwich structure, interior outer lens are fixed, and interior eyeglass can be moved along the direction perpendicular to optical axis, epi mirror
The polynomial free curved surface of piece is located at close to the surface of intermediate lens, and the polynomial free curved surface of interior eyeglass is located remotely from intermediate mirror
The operating mode on the surface of piece.
In Figure 10 sandwich structure, interior outer lens are fixed, and interior eyeglass can be moved along the direction perpendicular to optical axis, epi mirror
The polynomial free curved surface of piece is located remotely from the surface of intermediate lens, and the polynomial free curved surface of interior eyeglass is located at close to intermediate mirror
The operating mode on the surface of piece.
In Figure 11 sandwich structure, interior outer lens are fixed, and interior eyeglass can be moved along the direction perpendicular to optical axis, inside and outside
Two surfaces of eyeglass and intermediate eyeglass are the operating mode of polynomial free curved surface.
Working condition when Figure 12 (a) eye-observation distant objects；(b) working condition when eye-observation closer object
(axis oculi elongates, and retina curvature becomes larger)；(c) state when intelligent Zoom glasses observation distant objects is worn, intelligence becomes at this time
The focal power of burnt glasses is 0, and human eye is in normal condition；(d) when wearing intelligent Zoom glasses observation near objects, intelligence at this time
The distance for the object that energy Zoom glasses are fed back according to range sensor, mobile intermediate eyeglass make intelligent glasses be in negative power shape
State (such as -300 degree), the axis oculi of human eye and retina curvature still keep state when observation distant objects constant at this time, Ke Yiqing
It is clear to see near objects.
Figure 13 sandwich lens group equivalent optical system figure, is equivalent to the Alvarez lens of two pairs of two panels structure compositions
Group.
Specific embodiment
As shown in Figure 1, a kind of sandwich style Alvarez zoom intelligent glasses, including mirror holder and eyeglass；The eyeglass of every side is all
It is made of an Alvarez free surface lens group 4, an Alvarez free surface lens group is made of three lens；Every group
Two, the outside lens of eyeglass are fixed on mirror holder, and form sealing space, and intermediate lens are fixed on mirror holder by sliding block
On sliding groove 2, intermediate lens are slided along the direction perpendicular to optical axis；The mirror holder frontal left is equipped with first sensor 1,
The positive right side of face of mirror holder is equipped with 3rd sensor 5, and mirror holder front is intermediate to be equipped with second sensor 3, the range sensor and control
Circuit module connection processed；The control circuit module 13 is connect with the first driving motor 7, the second driving motor 1, two drivings
Motor drives sliding block sliding by the first screw thread pair 10, the second screw thread pair 12.The driving motor and control circuit is by battery
Module 6 is powered；The Alvarez zoom intelligent glasses are additionally provided with two indicator lights, are respectively intended to display electricity and glasses are burnt
Away from state；When work, intermediate lens are slided along the direction perpendicular to optical axis；
As shown in Fig. 2, Fig. 7；Two, the outside lens of every group of eyeglass contain a polynomial free curved surface, and multinomial
Surface is located at the surface adjacent with intermediate Alvarez lens, and the surface far from intermediate Alvarez lens is plane, spherical surface
Or spherical surface is aspherical；Intermediate former and later two faces of Alvarez lens are polynomial free curved surface；When work, intermediate is saturating
Mirror is slided along the direction perpendicular to optical axis.
As shown in Fig. 3, Fig. 8；Two, the outside lens of every group of eyeglass contain a polynomial free curved surface, and multinomial
Surface is located at the surface with the Alvarez lens far from centre, and the surface adjacent with intermediate Alvarez lens is plane, ball
Face or spherical surface are aspherical；Intermediate former and later two faces of Alvarez lens are polynomial free curved surface；It is intermediate when work
Lens are slided along the direction perpendicular to optical axis.
As shown in Fig. 4, Fig. 5, Fig. 9, Figure 10；It is freely bent that two, the outside lens of every group of eyeglass contain a multinomial
Face, one of eyeglass polynomial surface in the lens of two, outside are located at the surface adjacent with intermediate Alvarez lens, separately
One eyeglass is polynomial surface with the separate surface of intermediate Alvarez lens；Intermediate former and later two faces of Alvarez lens
It is polynomial free curved surface；The residual surface of two lens in outside is that plane, spherical surface or spherical surface are aspherical；When work, in
Between lens along perpendicular to optical axis direction slide.
If the surface of Fig. 6, Figure 11, three lens are polynomial surface；When work, intermediate lens are along perpendicular to optical axis
Direction sliding.
Assuming that the focal length of human eye is 22.8mm, the normal distance (comfort distance) of eye cornea front surface to retina is
23~24mm.When eye-observation object 350mm or more apart from when, human eye works in comfort conditions, and works as eye-observation
When the object of 150mm distance, if people's eye muscle does not adjust, object is after eye imaging, and image distance is from table before eye cornea
The distance in face is 26.4mm, if not wearing spectacles, the muscle in human eye portion has to the curvature and axis oculi of the cornea of adjustment eyes
Length come change eyes focal length and image forming job away to be clearly imaged, if worked long hours in this state,
Human eye will be caused near-sighted.
Assuming that the coefficient A=5.0E-4 (1/mm of two polynomial free curved surfaces of Alvarez lens2), the material of lens
For PMMA (refractive index 1.5), clear aperture 20mm, as shown in figure 13, sandwich structure are equivalent to two groups of two panels Alvarez
The structure of lens composition, by formula (2) shown in, when the Alvarez lens of centre move down 2mm, equivalent single group two panels
The focal length of Alvarez lens group are as follows:
The focal length of sandwich structure are as follows: f '=f/2=500 (mm)
Corresponding diopter is+200 degree.
When intermediate Alvarez lens move up 2mm, the focal length of equivalent single group two panels Alvarez lens group are as follows:
The focal length of sandwich structure are as follows: f '=f/2=-500 (mm)
Corresponding diopter is -200 degree.
When putting on the distance of the users of intelligent glasses when observing closer object (such as when reading), on intelligent glasses
It is 200mm that sensor, which detects object with a distance from human eye, and the control circuit on intelligent glasses is according in the driving of this detection range
Between Alvarez eyeglass move down 2.2mm, generate 220 degree of focal power, it is easypro that the object for making nearby is still imaged on human eye
The position of suitable distance 24mm.It avoids human eye because seeing closer object to reach, and makes muscular tone spasm, and cause myopia
Phenomenon.
When intermediate Alvarez lens move down 2.2mm, the focal length of Alvarez lens group are as follows:
Corresponding diopter is 220 degree.
As shown in Figure 12 (a), human eye when observing distant objects, image distant objects on the retina, polished bard
The nerve generation nerve impulse swashed on the retina is transmitted to cerebral cortex generation visual perception along optic nerve fiber.
When seeing object nearby, as shown in Figure 12 (b), if the state holding of human eye sees that the state of distant place is constant, this
When near objects imaging can project the rear portion of human eye retina, in order to see object nearby, the ciliary muscle of human eye clearly
It can tighten, the focal length of human eye is made to shorten, while the extraocular muscle of human eye can make the eyeball of people elongate (i.e. image distance increasing in optical axis direction
Greatly), by the adjusting of the muscle of human eye, object nearby be imaged also can on the retina.If human eye works long hours
Under short distance state, ciliary muscle and extraocular muscle can generate spasm, and it is existing to generate myopia to be restored to the position of relaxation state
As.The intelligent Zoom glasses working principle of our utility models be in the object of eye-observation distant place (such as Figure 12 (c) shown in),
Range sensor on glasses detects the distance of objective plane, and the position of mobile activity Alvarez eyeglass makes variable focus lens package
Focal power be 0, human eye works and (sees the state of distant objects when not wearing glasses, eye muscle, which is in, to be loosened in normal state
State), when eye-observation nearby target (for example reading a book, see the mobile phone screen), the displacement sensor on intelligent glasses is detected
The distance of object distance human eye at this time, control activity Alvarez eyeglass are moved to suitable position, make the light of variable focus lens package
Focal power is negative (such as -300 degree), and human eye remained to the state when observing distant objects and saw target nearby this when, and
The muscle in human eye portion is in relaxation state (shown in such as Figure 12 (d)).Intelligent Zoom glasses can make human eye always work in eye
The state of loosening all muscles, to prevention and avoid eyes from working long hours closely seeing myopia caused by object, especially making blueness
The myopia of juvenile student.
Claims (6)
1. sandwich style Alvarez zoom intelligent glasses, it is characterised in that: including mirror holder and eyeglass；Eyeglass is all by one
Alvarez free surface lens group is constituted, and an Alvarez free surface lens group is made of three lens；Every group of eyeglass
Two, outside lens are fixed on mirror holder, and form sealing space, and intermediate lens are fixed on the guide rail of mirror holder by sliding block,
Intermediate lens are slided along the direction perpendicular to optical axis；
Each Alvarez free surface lens polynomial equation are as follows:
Wherein, z is two polynomial surface height, and A is multinomial coefficient, and f (x, y) is higher order polynomial；F (x, y)=b1xy4+
b2x3y2+b3x5+b4xy6+b5x3y4+b6x5y2+b7x7+ ... wherein, b1, b2, b3... it is higher order polynomial coefficient；
Generate focal length are as follows:
Wherein, δ is two Alvarez lens combination focal powers, and A is multinomial coefficient, and 2 δ are between two Alvarez lens
The distance of relative movement, n are the Refractive Index of Material of Alvarez lens.
2. sandwich style Alvarez zoom intelligent glasses according to claim 1, it is characterised in that: the mirror holder is just
Face two sides are respectively equipped with one or more range sensors, and the range sensor is connect with control circuit module；Described
Control circuit module is connect with driving motor, and the driving motor drives sliding block sliding by driving screw thread pair.
3. sandwich style Alvarez zoom intelligent glasses according to claim 1 or 2, it is characterised in that: every group of eyeglass
Two, outside lens respectively contain a polynomial free curved surface, and polynomial surface is positioned at adjacent with intermediate Alvarez lens
Surface, the surface far from intermediate Alvarez lens is that plane, spherical surface or spherical surface are aspherical；Intermediate Alvarez lens
Former and later two faces are polynomial free curved surface.
4. sandwich style Alvarez zoom intelligent glasses according to claim 1 or 2, it is characterised in that: every group of eyeglass
Two, outside lens respectively contain a polynomial free curved surface, and polynomial surface is located at and the Alvarez lens far from centre
Surface, the surface adjacent with intermediate Alvarez lens is that plane, spherical surface or spherical surface are aspherical；Intermediate Alvarez is saturating
Former and later two faces of mirror are polynomial free curved surface.
5. sandwich style Alvarez zoom intelligent glasses according to claim 1 or 2, it is characterised in that: every group of eyeglass
Two, outside lens respectively contain a polynomial free curved surface, one of eyeglass polynomial surface position in the lens of two, outside
In the surface adjacent with intermediate Alvarez lens, another eyeglass is multinomial with the separate surface of intermediate Alvarez lens
Formula surface；Intermediate former and later two faces of Alvarez lens are polynomial free curved surface；The residual surface of two lens in outside is
Plane, spherical surface or spherical surface are aspherical.
6. sandwich style Alvarez zoom intelligent glasses according to claim 1 or 2, it is characterised in that: three lens
Surface is polynomial surface.
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| CN201821397446.2U CN209417458U (en) | 2018-08-28 | 2018-08-28 | Sandwich style Alvarez zoom intelligent glasses |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821397446.2U CN209417458U (en) | 2018-08-28 | 2018-08-28 | Sandwich style Alvarez zoom intelligent glasses |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164596A (en) * | 2018-08-28 | 2019-01-08 | 杭州电子科技大学 | A kind of sandwich style Alvarez zoom intelligent glasses |
| CN111752008A (en) * | 2020-07-23 | 2020-10-09 | 江苏万新光学有限公司 | Progressive multifocal lens set |
| CN113568189A (en) * | 2021-06-04 | 2021-10-29 | 杭州电子科技大学 | Zoom glasses and focusing method thereof |
-
2018
- 2018-08-28 CN CN201821397446.2U patent/CN209417458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164596A (en) * | 2018-08-28 | 2019-01-08 | 杭州电子科技大学 | A kind of sandwich style Alvarez zoom intelligent glasses |
| CN111752008A (en) * | 2020-07-23 | 2020-10-09 | 江苏万新光学有限公司 | Progressive multifocal lens set |
| CN113568189A (en) * | 2021-06-04 | 2021-10-29 | 杭州电子科技大学 | Zoom glasses and focusing method thereof |
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