CN101592794A - Full-automatic zoning light and shade adjusting sunglasses - Google Patents
Full-automatic zoning light and shade adjusting sunglasses Download PDFInfo
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- CN101592794A CN101592794A CNA2008101130238A CN200810113023A CN101592794A CN 101592794 A CN101592794 A CN 101592794A CN A2008101130238 A CNA2008101130238 A CN A2008101130238A CN 200810113023 A CN200810113023 A CN 200810113023A CN 101592794 A CN101592794 A CN 101592794A
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Abstract
Full-automatic zoning light and shade adjusting sunglasses belongs to the liquid crystal sunglasses field, it is characterized in that, contain: the optic angle degree detector that is positioned at nose holder front end, be positioned at the cpu chip and the bonnet of nose holder and be positioned at a left side, liquid crystal lens and solar cell in the right mirror holder, the one side of this eyeglass entirely is covered with a slice conduction light-transmissive film, another side is covered with the conduction light-transmissive film of many horizontal sticks from top to bottom, in incident angle is under the incident light irradiation of θ, two photoelectric tubes of angular transducer produce the photocurrent of different sizes, when itself and the input voltage that makes cpu chip during greater than the operating voltage threshold value, just calculate incident angle θ and corresponding stick sequence number, to this horizontal stick and up and down each stick apply the voltage of square waveform, its transmitance is descended, to block high light.That the present invention has is simple in structure, volume is little, the advantage of power saving.
Description
Technical field
The invention belongs to the liquid crystal sunglasses technical field.
The present invention is relevant a kind of so electronically controlled liquid crystal sunglasses: this eyeglass can change with the angle of incident light and the variation of ambient light the transmitance and the distribution thereof of light.Its effect is: when human eye is seen high light by eyeglass, the transmitance of high light institute corresponding region is low on the eyeglass, and other regional transmitance of eyeglass is high relatively, the mean transmissivity of eyeglass increases with ambient light illumination and reduces automatically simultaneously, to adapt under the high light environment, the environment around the human eye in being in dynamically still can be seen clearly.
Background technology
The design of some liquid crystal glasses is arranged in the invention technology formerly, and its eyeglass is divided into a plurality of adjacent sticks, and arranges along a direction, and each stick adds different voltage, can occur the hatching effect of gradient type as a result on the eyeglass.Thereby the eyeglass of this prior art can not be adjusted the change that adapts to the incident light direction automatically, because the difference of the transmitance of light is changeless between the adjacent stick.Some liquid crystal glasses designs are also arranged in the previous invention, and the grid stick by bidimensional control dynamically blocks the incident light in some zones.These eyeglass design will by more greatly, heavier, expensive electronic-controlled installation realizes function.
Summary of the invention
The objective of the invention is to overcome the existing unmodifiable shortcoming of its gradient of gradient type sunglasses.For the unmodifiable sunglasses of gradient, when the high light light source a lower position, lens wearer is had to bow and is shut out the light, consequently, only when the sun is positioned at day aerial higher position, this glasses competence exertion optimum efficiency.At the difference of intensity of illumination in the visual field, it is corresponding with it to need variable illumination transmitance, that is to say, in the zone that higher intensity of illumination is arranged, more illumination should be blocked by eyeglass, is having than the zone of low light according to intensity, and still less illumination should be blocked by eyeglass.
The present invention is the bright-dark degree that regulates the sunglasses zones of different for the position of response light source (as sunshine).As the nearer zone of middle distance sunlight, the visual field, eyeglass sees through less light; Middle distance sunlight zone far away, the visual field, eyeglass sees through more light; And the transmitance of eyeglass zones of different is low relatively and high state, when making human eye look around environment by eyeglass, even under the backlight situation, and the environment around also can seeing clearly.
Full-automatic zoning light and shade adjusting sunglasses is characterized in that, contains: spectacle frame, and liquid crystal lens, solar cell, printed circuit board (PCB), cpu chip, bonnet, and angle of light degree and illuminance sensor, wherein:
Spectacle frame is made up of left and right picture frame and the nose holder that connects described left and right picture frame, and described left and right picture frame all is the strap clamp layer;
Liquid crystal lens, transmitance is the function of the voltage that applies, the minute surface of this eyeglass is a planar shaped, by being embedded into a described left side respectively, two liquid crystal lens in the right picture frame constitute, each eyeglass adopts positivity TN-liquid crystal, all there is one deck conduction light-transmissive film the glass sheet on the two sides of described eyeglass inboard separately, wherein, there is conduction light-transmissive film simultaneously to cover the whole zone of this eyeglass, be connected on the common pin attached to the connector of this eyeglass, constitute public electrode, the conduction light-transmissive film of another side is divided into many horizontal sticks, be arranged as a vertically combination, extend to the same or approaching width of this liquid crystal lens, each stick is connected to an independent pin on the described connector, constitute many control electrodes, each horizontal stick is relevant with the control voltage on the public electrode with the control electrode that is added in described each horizontal stick to the transmitance of sunshine on this eyeglass: when control voltage is lower than the eyeglass operating voltage threshold value of setting, constant in the transmitance of space each point with respect to the subregion of this horizontal stick; The transmitance of described this subregion descends when control voltage is higher than the eyeglass operating voltage threshold value of setting, if on adjacent horizontal stick, add the control voltage identical with this stick, then these sticks can be formed one with deceiving with dark level shadow band, other each stick adds different control voltage simultaneously, the transmitance that makes its corresponding region therewith with transmitance compare, high relatively.It is bright that the perspective of whole eyeglass presents some zone, the effect that some zone is dark
Angle of light degree sensor, it is a photoelectric transducer element, upper and lower respectively have a photoelectric tube PA and a PB, center fixed is connecting a shadow shield, common constitute two photometry parts, be embedded in the preceding cell mount in the nose holder of described spectacle frame, photocurrent output terminal and described printed circuit board (PCB) are electrically connected, when incident light impinges perpendicularly on described photoelectric tube, the photocurrent I of two photocell detection
aWith I
bEquate that when incident light θ incident at a certain angle, under the influence of shadow shield, effective photosensitive area of two photoelectric tubes is unequal, photocurrent I
a, I
bAlso unequal, (I then
a-I
b)/(I
a+ I
b) amount be directly proportional and (I with incident angle
a+ I
b) value then be proportional to the illumination of sunshine;
Cpu chip, be positioned on the described printed circuit board (PCB), each control signal voltage output end of this cpu chip links to each other respectively with a public electrode with each control electrode on the described liquid crystal lens through described printed circuit board (PCB), connector successively, the photocurrent input end of this cpu chip links to each other with the photocurrent output terminal of described two photoelectric tube PA and PB respectively by printed circuit board (PCB), in order to two the photocurrent Is of a reflection with respect to the incident angle and the illuminance of described normal direction
a, I
bHandle according to the following steps, thereby determine the running status of described each subregion: set: human eye is to the distance L of described eyeglass, vertical width of described each stick is W, normal direction when the people is at eye level overlaps with the normal direction of eyeglass, described normal is as the X-axis of coordinate axis, the focus of this normal and eyeglass is a true origin, to do vertical line from described true origin in the eyeglass, this vertical line is the Y-axis of coordinate axis, subregion to this true origin place is numbered, it is numbered zero, is positioned at the above and following subregion of described X-axis and is marked with positive sign and negative sign respectively, distinguishes numbering in regular turn again;
Step (1), when illuminance is lower than its critical value, photocurrent I
a+ I
bJust less than the threshold value that is stored in advance among the CPU, this cpu chip is controlled, and the whole electrodes of all of described eyeglass do not have any control signal input;
Step (2) is when the illuminance of sunshine is higher than the illuminance critical value of setting, photocurrent I
a+ I
bGreater than described threshold value, this cpu chip control is to square wave voltage signal that frequency, dutycycle are all set of public electrode output of described liquid crystal lens, execution in step (3) simultaneously;
Step (3), cpu chip is judged photocurrent I
aWhether equal photocurrent I
b:
If: I
a=I
bThe incident light that is perpendicular to eyeglass that then described sensor receives, incident angle is zero, this cpu chip make each control electrode on the described liquid crystal lens import respectively one be added in described public electrode on the identical control signal of voltage of square wave similar shape, this control signal and square wave voltage signal phase differential 180 degree of transporting on the described public electrode, make that transmitance is identical on each stick of liquid crystal lens, thereby the transmittance of each horizontal stick distributes the same;
If: I
a≠ I
b, set here, be that the sequence number of that sub regions of θ is n with respect to incident angle, described θ angle be line between the human eye and the sun with respect to the angle of described X-axis, described sequence number n is exactly the numbering of that stick at the intersection point place of this line and liquid crystal lens,
Wherein, tan θ=nW/L, and θ ∝ (I
a-I
b)/(I
a+ I
b), this CPU pair of corresponding n of horizontal stick horizontal stick with described normal direction applies control voltage, there is phase differential in described control voltage with respect to the square wave voltage signal that is added on the described public electrode, the feasible equivalent voltage value maximum that is added on the horizontal stick of described liquid crystal lens n piece, thereby make the transmitance minimum of this stick, to block high light.Correspondingly, except the horizontal stick of described n piece, the stick of n-1, the n+1 that is adjacent also adds identical control voltage, and a level band of being made up of three adjacent sticks is dark together with deceiving, and blocks high light.The control voltage that all the other sticks add except that these three sticks makes its transmitance higher relatively.
Bonnet is embedded in the rear frame of the close human body bridge of the nose of described spectacle frame nose holder, thereby by forward and backward framework of this nose holder, left and right picture frame and described angle of light degree sensor and illuminance sensor have formed an inner chamber jointly;
Solar cell, left and right each one, be assembled in second inner chamber that described spectacle frame divides near left and right glasses shank, and by printed circuit board (PCB) to described cpu chip, angle of light degree sensor and power supply.
Full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, described angle of light degree sensor is an one dimension angle probe.
Full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, described eyeglass is curved.
Full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, the width of described each horizontal stick is not wait.
Full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, described used for solar batteries Li-Ion rechargeable battery or Ni-Cd nickel-cadmium replace.
This invention is a kind of design of suitable glasses, and the transmitance of eyeglass can be regulated.Each eyeglass is divided into one group of stick of arranging in order, produce common signal according to the light intensity that measures, incident angle according to the light that measures, determine n stick and neighbouring n-1 and n, three sticks are formed a photo-shield strip, add identical control voltage and make the transmitance of this photo-shield strip lower, block the high light in the visual field than the transmitance of other stick.The distribution of transmitance presents relatively secretly and relative bright transparent effect eyeglass on the eyeglass.Reach that to block high light many and block the few purpose of the low light level.
Description of drawings
Fig. 1 has showed the outward appearance of this glasses invention in proportion.Two liquid crystal lens 3 of assembling in the mirror holder 1, angle probe 4 is surveyed the angle of incident light.
Fig. 2 has showed the vertical view of this glasses invention.Printed circuit board (PCB) 5 and other electron component are assembled in first inner chamber 9 of mirror holder, and control circuit is determined which stick on the liquid crystal lens 3 is activated and determined the light transmission rate of each stick.The power supply that drives this device is assembled in second inner chamber 11 from battery 12.
Fig. 3 has showed the direction of analysing and observe that described sunglasses chooses.
Fig. 4 has showed the amplification position that described sunglasses will be chosen.
Fig. 5 cuts the cut-open view that the back forms by position shown in Figure 4 open along direction shown in Figure 3.
Fig. 5 has showed the sectional view of this spectacles nose holder part.Mirror holder 1 comprises an inner chamber 9 of placing electronic component, and angle probe 4 is connected with printed circuit board (PCB) 5, and microcontroller 6 and other electron component are connected on the printed circuit board (PCB) 5.Liquid crystal lens 3 and printed circuit board (PCB) 5 are by connector 7 circuit communications, and connector 7 passes hole 10, and hole 10 may be sealed to avoid water to enter 9, one bonnet 8 closed cavities of inner chamber.
Fig. 6 is the synoptic diagram of this glasses operating process of explanation.Incident angle of light and intensity of illumination 16 are measured by sensor module, and sensor module offers control circuit with data message.Control circuit need above the liquid crystal lens 3 to determine the stick that is activated, and these sticks are used for blocking the light that enters human eye 15, and control circuit determines that also each has the numerical value of less transmitance state.First signal is added on the public electrode 17, and identical signal loading is activated to prevent it on first selected stick 14.According to the transmitance of single stick expectation, there is one in the signal that loads on each stick that is activated with respect to first signal and differs.
Fig. 7 has showed the front view of these glasses.This eyeglasses frame 1 comprises two liquid crystal lens, each liquid crystal lens is divided into one group of stick 2 longitudinally, and angle probe 4 is measured the angle of incident light, and control circuit determines which stick is activated, if there is stick to be activated, control circuit is also determined the transmitance of each stick that is activated.
Fig. 8 is one group of oscillogram, has showed the sequential that is carried in the signal on the independent stick in the eyeglass.Waveform a is carried on the public pole of being shared by all sticks.Waveform b does not have phase shift with respect to waveform a, loads waveform b on any stick, and voltage on its electrode and the voltage on the public pole do not have difference, thereby this stick can not present weakening of transmitance.Waveform c exists one to differ with respect to waveform a, loads waveform c on any stick, and the voltage on its electrode has relative little difference with voltage on the public pole, and then this stick transmitance has less degree to weaken.Waveform d compares with waveform c, has bigger differing with respect to waveform a, loads waveform d on any stick, and then this stick transmitance has largely and weakens.Similarly, there be differing of a maximum in waveform e with respect to waveform a, loads waveform e on any stick, and then this stick transmitance has at utmost and weakens.
Fig. 9 is the program flow chart of control system.When the energy of light source is higher than limit value, microprocessor 6 is activated, and microprocessor 6 reads the analog input value from angle probe 4, and this analog input value is converted into digital numerical value then, has determined whether that by computing stick and which stick 2 are activated.According to selected shading value, the signal that is carried on each stick 2 is produced, and this signal has corresponding phase shift with respect to the reference earth signal.
Figure 10 is the synoptic diagram that calculates incident angle θ:
10a: the relativeness figure of incident light and liquid crystal lens:
tanθ＝nw/L
10b: the relativeness figure of incident light and described optical sensor:
S is a shadow shield.
10c: the incident angle characteristic curve of liquid crystal lens:
θ＝(I
a-I
b)/(I
a-I
b)
I
aWith I
bBe respectively the output current of working surface a, b.
Figure 11 is the pin connection layout of each horizontal stick on the liquid crystal lens.
Figure 12 is the cpu chip connection layout.
Embodiment
The function that glasses of the present invention will be realized is: according to light source from direction, make the transmitance of certain field range light be higher than other field range.By an angular transducer induction surrounding environment light intensity and average angle.Each sheet eyeglass all is divided into a plurality of sticks, and the stick ordered distribution makes all Be Controlled circuit regulation and control separately of each stick.Central authorities' control die set is carried out Treatment Analysis to light intensity and angle of light degree signal, thereby determines the running status of each stick, each stick or be in the state of closing down, otherwise this stick is in starting state separately or with a plurality of sticks.
Angular transducer is by two photoelectric tube PA, and PB forms, and as shown in figure 10, the sensor normal overlaps with the lens normal.In the middle of two photometry unit, a barrier bed is arranged, when incident light vertical incidence angular transducer, the photocurrent I that PA and PB detect
aWith I
bIdentical, when light beam incident at a certain angle, because the influence of this baffle plate, effective photosensitive area of PA and PB can be different, I
aWith I
bThe photocurrent that detects is also different.(I
a-I
b)/(I
a+ I
b) be directly proportional with incident angle and maximum detection angles is positive and negative 50 degree.Cpu chip calculates this amount can try to achieve incident angle of light such as Figure 10.Simultaneously with I
a+ I
bAmount compares with the illuminance threshold value of setting, and whether decision is controlled the unit of eyeglass.
Human eye is L to the distance of eyeglass, and the width of stick is W on the eyeglass, each stick of shared N on the eyeglass, and the angle of n stick and horizontal direction is θ, has according to the triangle characteristic: tan θ=nw/L.Cpu chip utilizes following formula can calculate n, and each stick of n+1 and n-1 is added identical control voltage according to the angle θ that angular transducer detects, and forms a level band and blocks high light.
Side at liquid crystal lens is drawn a plurality of electrodes, one side is drawn an independent public electrode, as scheme to add the frequency waveform identical with dutycycle all the time on the common port of all sticks of b, by changing the phase differential of itself and common port signal, with regard to the transmitance of this stick of may command.For example b does not have phase shift with respect to waveform a, and when loading waveform b on any stick, the voltage of working control liquid crystal is two voltage differences on the electrode, always be zero in this voltage difference when section in office, thereby the transmitance of this stick is constant.There is one in waveform c with respect to waveform a and differs, and when loading waveform c on any stick, voltage and the voltage difference on the public pole on its electrode are non-vanishing in certain period, and then this stick transmitance has less degree to weaken.Waveform d compares with waveform c, has bigger differing with respect to waveform a, loads waveform d on any stick, and then this stick transmitance has largely and weakens.Similarly, there be differing of one 180 degree in waveform e with respect to waveform a, loads waveform e on any stick, and then this stick transmitance has at utmost and weakens.So in 0-180 degree scope, change the signal phase of control end, but just transmitance of this stick of stepless control.
The model machine of this invention comprises a combined light inductor, a microcontroller, the glasses that battery and two LCDs and spectacle frame assemble.Wherein, the combined light inductor comprises angle probe and illuminance sensor; Microcontroller comprises two big devices of running calculation.
Angle probe and illuminance sensor are to be made of two photodiodes, are placed in a shielding plate back.Angle probe and illuminance sensor are positioned in a certain position of spectacle frame and liquid crystal lens keeps relatively-stationary connected mode.The product that angle probe can adopt Hamamatsu Photonics company to provide, Part No. is S6560.The illuminance that it can be sensed according to each photodiode, output current is to two pins of detector.The combination of any other photodetector, if can sense the intensity and the incident angle of illumination, also can be used as angle probe and illuminance inductor, can respond to visible light and ultraviolet photodiode for two, its combination can be used as the substitute of S6560 detector.Detector to the position sensor sensitivity can substitute two photodiodes in angle probe and the illuminance sensor.Operational amplifier is converted to voltage signal with each current signal, and the analog to digital converter in the microcontroller is a digital signal with all analog signal conversion, and therefore the direction of light source and the intensity of illumination are calculated.Voltage by each photodiode and other type light sensor can directly measure, and does not need the conversion of such electric current and voltage.
The microcontroller model that existing model machine uses is MSP430F2234, and this microcontroller has contained two operational amplifiers, the electric current of photodiode in the detector that can directly take measurement of an angle, thereby the size of dwindling circuit board in its design.Also have the microprocessor of other kind to can be used as suitable substitute, use operational amplifier unessential.
In order to inform analog to digital converter with suitable numerical range from the illuminance that photodiode is measured, consider that light source changes a dynamic range in this application, must select the feedback resistor of decision operational amplifier gain for use, this resistor can be constant, also can be adjustable by pot.
Battery is essential, needs it to provide enough at least voltage to start microcontroller and LCDs.Battery can substitute with solar cell, subsidiary or subsidiary pressure regulator all can, also can substitute with the electric power that angle probe produces.
The LCDs that existing model machine uses is STN-Huang/green type, although TN type, STN-ash type, FSTN type are suitable for too, and the structure of these LCDs and make well-known.Each face of LCDs all has the conductive film layer of layer of transparent, and an oriented layer is arranged in the display screen.The display screen wherein transparent conductive film layer of one side has a kind of formation pattern, and the stick of level is arranged as a combination longitudinally, and each stick is connected to an independent pin on the connector attached to LCDs.The transparent conductive film layer of display screen another side has covered the whole zone of liquid crystal display, is connected to another one pin on the identical liquid crystal display connector, and this electrode (pin) just is considered public pole.Horizontal stick extends to width or the approaching same width same with LCDs always, when alternating voltage is added on the stick, and voltage greatly to can the primer fluid crystal display screen, then by the influence of light-electro ultrafiltration, the striped of a level can occur on the LCDs.When same voltage is added on other stick, the striped that has at one time more than is activated.
The lens of any other type (eyeglass), the transmitance of corresponding light changes thereupon after adding voltage, and such lens all may become the substitute products of LCDs.If the light transmission rate of other material response institute's making alive also changes thereupon, these materials are suitable for too, and comprising dyestuff, dyestuff and liquid crystal material constitute a kind of host and guest's relation.Existing model machine shuts out the light when applying voltage, and to some application, an eyeglass also can shut out the light under normal conditions, transmitted light when applying voltage.Stick also can be that the longitudinal stripe horizontal direction is arranged or according to other direction permutation and combination.
Control system is reflected to specific stick with the incident angle and the light intensity readings of light, and adds that specific voltage is to LCDs.In period, the voltage that is added in averaging time on all sticks should be as far as possible near null value at each section.Add DC voltage to LCDs and can cause ion to move, lower the life-span of LCDs.The standard deviation voltage that adds to each stick may be different because of amplitude, dutycycle or phase shift, and phase shift relates to the drive pattern in the signal, and a signal is added to public stick under the dutycycle of determining, be added on other stick at other signal under the identical dutycycle.Signal on being added in single stick and being added in when not having phase shift between the signal on the public stick, being added in this regional standard deviation voltage of liquid crystal display is zero.Be not null value when being added in the signal on the single stick and being added in differing between the signal on the public stick, if differ even as big as the primer fluid crystal display screen, this zone of eyeglass will deepening so.This drive pattern is used to start one or more sticks, and other stick keeps not being activated simultaneously.This drive pattern adopts digital output and negative voltage can not be provided, and can be used to drive many sticks LCDs of a public stick.
Claims (5)
1. full-automatic zoning light and shade adjusting sunglasses is characterized in that, contains: spectacle frame, and liquid crystal lens, solar cell, printed circuit board (PCB), cpu chip, bonnet, and angle of light degree sensor, wherein:
Spectacle frame is made up of left and right picture frame and the nose holder that connects described left and right picture frame, and described left and right picture frame all is the strap clamp layer;
Liquid crystal lens, its transmitance are the functions of the voltage that applies.This eyeglass is made up of multilayer, and wherein constituting the two-layer of liquid crystal cell is substrate, and the substrate outside is a polaroid.Each eyeglass adopts positivity TN-liquid crystal, all there is one deck conduction light-transmissive film the two sides substrate inboard separately of described eyeglass, wherein, there is conduction light-transmissive film simultaneously to cover the whole zone of this eyeglass, and be connected on the common pin attached to the connector of this eyeglass, constitute public electrode, the conduction light-transmissive film of another side is divided into many horizontal sticks, be arranged as a vertically combination, extend transverse to the edge of this liquid crystal lens, each stick is connected to an independent pin on the described connector, constitutes the control electrode of described horizontal stick separately.Each horizontal stick is relevant with the control voltage on the control electrode that is added in described each horizontal stick to the transmitance of sunshine on this eyeglass: when control voltage was lower than the eyeglass operating voltage threshold value of setting, the transmitance of this horizontal stick was constant; The transmitance of described this stick descends when control voltage is higher than the eyeglass operating voltage threshold value of setting.
Angle of light degree sensor, it is a photoelectric transducer element, upper and lower respectively have a photoelectric tube (PA) and (PB), center fixed is connecting a shadow shield, common constitute two photometric measurers, be embedded in the preceding cell mount in the nose holder of described spectacle frame, photocurrent output terminal and described printed circuit board (PCB) are electrically connected, when incident light impinges perpendicularly on described photoelectric tube, the photocurrent I of two photocell detection
aWith I
bEquate that when incident light θ incident at a certain angle, under the influence of shadow shield, effective photosensitive area of two photoelectric tubes is unequal, photocurrent I
a, I
bAlso unequal, (I then
a-I
b)/(I
a+ I
b) amount be directly proportional and (I with incident angle
a+ I
b) value then be proportional to the illumination of sunshine;
Cpu chip, be positioned on the described printed circuit board (PCB), each control signal voltage output end of this cpu chip links to each other respectively with each control electrode, a public electrode on the described liquid crystal lens through described printed circuit board (PCB), connector successively, the photocurrent input end of this cpu chip links to each other with the photocurrent output terminal of described two photoelectric tube PA and PB respectively by printed circuit board (PCB), in order to two the photocurrent Is of a reflection with respect to the incident angle and the illuminance of described normal direction
a, I
bHandle according to the following steps, thereby determine the running status of described each stick: set: human eye is to the distance L of described eyeglass, vertical width of described each stick is W, normal direction when the people is at eye level overlaps with the normal direction of eyeglass, described normal is as the X-axis of coordinate axis, the focus of this normal and eyeglass is a true origin, to do vertical line from described true origin in the eyeglass, this vertical line is the Y-axis of coordinate axis, subregion to this true origin place is numbered, it is numbered zero, is positioned at the above and following subregion of described X-axis and is marked with positive sign and negative sign respectively, distinguishes numbering in regular turn again;
Step (1), when illuminance is lower than its critical value, photocurrent I
a+ I
bJust less than the threshold value that is stored in advance among the CPU, all whole electrodes that this cpu chip is controlled described eyeglass do not have any control signal input;
Step (2) is when the illuminance of sunshine is higher than the illuminance critical value of setting, photocurrent I
a+ I
bGreater than described threshold value, this cpu chip control is to square wave voltage signal that frequency, dutycycle are all set of public electrode output of described liquid crystal lens, execution in step (3) simultaneously;
Step (3), cpu chip is judged photocurrent I
aWhether equal photocurrent I
b:
If: I
a=I
bThe incident light that is perpendicular to eyeglass that then described sensor receives, incident angle is zero, this cpu chip make each control electrode on the described liquid crystal lens import respectively one be added in described public electrode on the identical control signal of voltage of square wave similar shape, this control signal and square wave voltage signal phase differential 180 degree of transporting on the described public electrode, make that transmitance is identical on each stick of liquid crystal lens, thereby the transmittance of each horizontal stick distributes the same;
If: I
a≠ I
b, set here, be that the sequence number of that sub regions of θ is n with respect to incident angle, described θ angle be line between the human eye and the sun with respect to the angle of described X-axis, described sequence number n is exactly the numbering of that stick at the intersection point place of this line and liquid crystal lens,
Wherein, tan θ=nW/L, and θ ∝ (I
a-I
b)/(I
a+ I
b), this CPU pair of corresponding n of horizontal stick horizontal stick with described normal direction applies control voltage, there is phase differential in described control voltage with respect to the square wave voltage signal that is added on the described public electrode, the feasible equivalent voltage value maximum that is added on the horizontal stick of described liquid crystal lens n piece, thereby make the transmitance minimum of this stick, to block high light.Correspondingly, except the horizontal stick of described n piece, the stick of n-1, the n+1 that is adjacent also adds identical control voltage, and a level band of being made up of three adjacent sticks is dark together with deceiving, and blocks high light.The control voltage that all the other sticks add except that these three sticks makes its transmitance higher relatively.
Bonnet is embedded in the rear frame of the close human body bridge of the nose of described spectacle frame nose holder, thereby by forward and backward framework of this nose holder, left and right picture frame and described angle of light degree sensor and illuminance sensor have formed an inner chamber jointly;
Solar cell, left and right each one, be assembled in second inner chamber that described spectacle frame divides near left and right glasses shank, and by printed circuit board (PCB) to described cpu chip, angle of light degree sensor and power supply.
2, full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, described angle of light degree sensor is an one dimension angle probe.
3, full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, described eyeglass is curved.
4, full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, the width of described each horizontal stick is not wait.
5, full-automatic zoning light and shade adjusting sunglasses according to claim 1 is characterized in that, described used for solar batteries Li-Ion rechargeable battery or Ni-Cd nickel-cadmium replace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101130238A CN101592794B (en) | 2008-05-27 | 2008-05-27 | Full-automatic zoning light and shade adjusting sunglasses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101130238A CN101592794B (en) | 2008-05-27 | 2008-05-27 | Full-automatic zoning light and shade adjusting sunglasses |
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| CN101592794B CN101592794B (en) | 2010-12-01 |
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879919A (en) * | 2011-07-11 | 2013-01-16 | 浙江亿思达显示科技有限公司 | Sun glasses |
| CN104969120A (en) * | 2012-12-03 | 2015-10-07 | 可来灵菇日本株式会社 | Optical device |
| CN106910423A (en) * | 2017-04-10 | 2017-06-30 | 珠海格力电器股份有限公司 | Display device and air-conditioning equipment |
| CN110088668A (en) * | 2016-12-27 | 2019-08-02 | 三井化学株式会社 | Eyeglass and eyewear |
| CN112955810A (en) * | 2018-09-13 | 2021-06-11 | 唯酷有限公司 | Light adjustable glasses |
| CN114755850A (en) * | 2021-01-08 | 2022-07-15 | 广东小天才科技有限公司 | Multi-zone PNLC lens adding process, PNLC lens prepared through same and intelligent glasses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129938Y (en) * | 1992-08-19 | 1993-04-14 | 黄秉全 | Electronic colour changing glasses |
| CN2241351Y (en) * | 1995-11-20 | 1996-11-27 | 张新仓 | Electronic liquid crystal photochromic glasses |
| CN2513133Y (en) * | 2001-11-21 | 2002-09-25 | 赵洪双 | Liquid crystal anti-short sightedness glasses |
-
2008
- 2008-05-27 CN CN2008101130238A patent/CN101592794B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879919A (en) * | 2011-07-11 | 2013-01-16 | 浙江亿思达显示科技有限公司 | Sun glasses |
| CN104969120A (en) * | 2012-12-03 | 2015-10-07 | 可来灵菇日本株式会社 | Optical device |
| CN104969120B (en) * | 2012-12-03 | 2018-12-21 | 可来灵菇日本株式会社 | Optical devices |
| CN110088668A (en) * | 2016-12-27 | 2019-08-02 | 三井化学株式会社 | Eyeglass and eyewear |
| CN106910423A (en) * | 2017-04-10 | 2017-06-30 | 珠海格力电器股份有限公司 | Display device and air-conditioning equipment |
| CN112955810A (en) * | 2018-09-13 | 2021-06-11 | 唯酷有限公司 | Light adjustable glasses |
| CN112955810B (en) * | 2018-09-13 | 2023-11-07 | 唯酷美国有限公司 | Adjustable glasses |
| CN114755850A (en) * | 2021-01-08 | 2022-07-15 | 广东小天才科技有限公司 | Multi-zone PNLC lens adding process, PNLC lens prepared through same and intelligent glasses |
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|---|---|
| CN101592794B (en) | 2010-12-01 |
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