CN1187252A - Light indensity reduction apparatus and method of reduction - Google Patents
Light indensity reduction apparatus and method of reduction Download PDFInfo
- Publication number
- CN1187252A CN1187252A CN 96194558 CN96194558A CN1187252A CN 1187252 A CN1187252 A CN 1187252A CN 96194558 CN96194558 CN 96194558 CN 96194558 A CN96194558 A CN 96194558A CN 1187252 A CN1187252 A CN 1187252A
- Authority
- CN
- China
- Prior art keywords
- user
- shutter
- light intensity
- deepening
- light
- 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.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Eyeglasses (AREA)
Abstract
A device for selectively reducing the intensity of ligh in the field of view of an eye or of an optical instrument is described. The device can reduce the light intensity emanating from multiple sources. In one embodiment, an eye gear has a frame, a power source (18, 19), a light sensor, two light transmissive lenses (4 and 5) having an array of shutter elements (8 and 9), user controls (20 and 21) and processing circuitry (16 and 17). The user controls are utilized to set user constants to customize the apparatus, and may be used to select a mode of operation. During operation, the light sensor scans the field of view and produces light intensity signals. These light intensity signal are processed with the user constants and preset threshold values. If the light intensity signals exceed any of the threshold values, then one or more elements of the shutter matrices of each lens is darkened.
Description
The present invention relates to reduce the apparatus and method that light intensity is used.Particularly described a kind of active sunglasses, it is positioned at one or more element deepening pari passu on the shutter matrix on each eyeglass by allowing, and can mask the light from the sun and/or other light source selectively.
Might produce sunglasses, will be reduced to permissible level from the light of the sun with high optical attenuator characteristic.Such sunglasses allows that the user directly spies on the sun, yet does not almost have anything else to be seen, this is because the decay of light is so high, so that the visual field is not that extremely bright other parts do not see.
Steering vehicle under the close horizontal situation of the sun, or when the light source that directly becomes clear towards other certain under the low ambient lighting condition is driven, may be dangerous, this is because the source of light is directly spied in some traffic occasion requirement.Dark sunglasses, safety goggles and other allow the means of windshield deepening, be found the dazzle and the reflex that can alleviate from the sun and other light source, but often change owing to resemble the traveling distance of vehicle, and the angle that constantly changes between driver and light source can change, so that the countermeasure of these shielded from light is not proved to be is satisfactory completely.
The object of the present invention is to provide a kind of apparatus and method of shielded from light, this apparatus and method are only to being confirmed as certain excessive zone or some light shields in regional in the visual field by the light intensity levels threshold value that the user gives choosing, so that other target in this visual field still sees clearly Chu.
Another object of the present invention is to provide a kind of apparatus and method of shielded from light, its shielding is incident on light on the optical instrument from one or more light source, thereby makes the recording medium of this instrument can write down details in the visual field.
A further object of the present invention is to provide for the eyesight method and apparatus that the people uses that suffers damage.According to device of the present invention, the dynamic range of incident light can be reduced to can controlled degree and the ratio of restriction optical attenuation.
According to device of the present invention, comprise a power supply, one can produce the optical sensor of the corresponding light intensity signal of light many and in the visual field, and one has eyeglass, customer controller and the treatment circuit of the energy printing opacity of many programmable shutter elements.This treatment circuit is handled these light intensity signals with respect to giving threshold value and the user's constant determined earlier, allows one or more shutter elements deepening according to result then.Customer controller is used to be provided with the user's constant that allows this device customize, and can be used to be provided with one or more working method.
According to device of the present invention, it is for incoherent light source or to have a light source of wide beamwidth effective, for example can be from the sun or from headlight, taillight, reflective and so on this class light source that obtains.Further advantage and characteristic will be in view of subsequently description and accompanying drawing will become more obvious.
Fig. 1 is the skeleton view according to light intensity decays device embodiment of the present invention;
Fig. 2 is can be by the simplified block diagram of the circuit of device utilization among Fig. 1;
Fig. 3 is the reduced graph of eyeglass among Fig. 1, in order to explanation how user's constant is set;
Fig. 4 is the simplified block diagram of the parts that are associated with another embodiment of apparatus of the present invention, and
Fig. 5 is the simplified side view of sensitive element array and shutter matrix among Fig. 4.
Fig. 1 is the skeleton view of strength attenuator 1 embodiment of the present invention.Present embodiment is represented one pair of active sunglasses 1, and all functions parts that it had all are fixed on framework or the eyeglass.Active sunglasses one speech is defined as a kind of device at this, and its purpose is to reduce the light level from one or more light source, and this light source can be included in the sun and the reflection thereof under two kinds of conditions of day and night, and headlight, taillight and other light source.And; can be used to the illeffects (as the sun) of protecting eyes to avoid bright light source according to device of the present invention, for example use reading glass, video camera, shooting with video-corder when resembling machine combination, telescope, binoculars, microscope and other monotubular or multi-lens optical instrument.In addition, this device can be used to protect or reduce to be incident on detector, storage medium or video camera, shoots with video-corder the illeffects of the bright light source on other element that resembles machine combination, telescope, microscope or other optical instrument.For example at video camera or the place ahead or its back of shooting with video-corder the camera lens that resembles machine combination utilize the present invention, allow towards or directly take pictures and can not produce multiple image facing to the sun, can not make egative film over-exposed, perhaps can not wash out the details of other object in the visual field.
How to work in order to understand the present invention better, how the eyes that relate to the people react to different light intensities, briefly are discussed below.Drop on the size of the light on the photoreceptor of human eye retina rear portion, control by iris.If the brightness of light increases suddenly, iris will shrink and allow with minimizing and to enter amphiblestroid light quantity so.Meanwhile, because light intensity impression improves, so retina begins to reduce the sensitivity of its photoreceptor, so that this combination makes the luminance brightness of feeling out reduce the variation that can produce separately than retina or iris is big.This just means, because the opening width of pupil is smaller and retina sensitivity is lower, so once discernible details may lose before introducing the light intensity that increases.The eyes that importantly it may be noted that the people between 50 to 100ms, depend on brightness and other variable for the response of intensity variation.Active sunglasses of the present invention, it works is fast to the response ratio eyes that light intensity levels improves by it, to reduce by light quantity next in the zone very bright in the visual field.This operation means that human eye can keep quite fixing sensitivity, more or less Gu Ding iris dimensions and photoreception sensitivity.Therefore, those targets that might lose owing to there is very bright light source will see clearly Chu.Thereby active sunglasses can reduce to send to the dynamic range of the light of human eye, and further reduces the influence of bright light source for other object sensation in the visual field.The individual that eyesight suffers damage can find that also this sunglasses is useful, because the dynamic range that this sunglasses can reduce intensity variation speed and reduce light in the visual field, as following will the explanation.
According to active sunglasses of the present invention, has the ability that optionally shields the bright light source in the user visual field and do not make other the regional deepening in the visual field.Therefore, excessive increase and the minimizing that enters the light intensity of human eye can be avoided.The problem that intensity variation produces can be understood like this, imagination when the sun when the windshield of approaching automobile is injected human eye suddenly, temporary transient light disturbs just generation.It may become clear, and is enough to cause the instantaneous eyes of closing her of this people.In this case, the average intensity level of leap visual field may change very little, but the peak value that only improves suddenly on the sub-fraction visual field causes that but people are uncomfortable.Under this occasion, the dynamic range of visual field has increased.The light intensity that has increased can be only be attenuated from this zone of visual field.In addition, the present invention can improve the discomfort that average light brightness in the visual field or Strength Changes ratio are brought greatly.This average luminous intensity level variation ratio problem of generation greatly can be understood like this, and imagination is worked as the cinema of leaving deepening and entered produce in the bright sunlight uncomfortable.The average intensity level that he can in seconds allow eyes be adjusted to be increased sharply, although dynamic range may be constant.Under two kinds of situations just having described, active sunglasses can the peak limiting luminance brightness and the ratio that changes of dynamic range and average light brightness itself, thereby alleviates the eyesight discomfort.
For driving, desirable sunlight protector may be a kind of lighttight disk that is suspended on the space even as big as complete blanch, is centered on the vector that is limited by user's retina to the sun.In addition, when the orientation between the eyes of user and the sun changed, this relation that keeps the light tight disk and the sun may be vital.Vision in this case may be normal, except that part of visual field that is being hidden by light tight solid dish in the resident place of the specific moment sun.People's examination is accomplished this point by a hand is lifted, so that cover the sun.In addition, the opacity of control blanking disc is so that from the approaching extraneous brightness of sunshine brightness, (for example when this zone may comprise the vehicle of approaching) under many circumstances may be more desirable for covering fully from this regional light.And shielding firmly comes from the perhaps reflection of multiple light courcess of sunlight on many surfaces, may be favourable.In addition, when driving on highway night, the driver not only meets with the light from the approaching headlight, and meets with from the inboard reflection earlier of front lamp of vehicle and the outside one or two rearview mirrors subsequently.Although some vehicle have inner manually or electronic installation so that resembling of providing of internal mirror fog, yet resembling of seldom external mirror being provided fogs.Active sunglasses will not only reduce the light from the approaching vehicle, and reduce the light from inside and outside reflection elephant that mirror provides, thereby reduce the variation of light intensity levels and alleviate optical stresses.
Sunglasses 1 comprises two liquid crystal devices (LCD) eyeglass 4 and 5 that is installed in above the cruciform bracing 30.Although " LCD " speech is used to describe the material that uses in eyeglass 4 and 5, yet the person skilled in the art of this area will be understood that, alternative material such as ferroelectrics, liquid crystal material are overall or have other material that optical transmission characteristics can change in very wide range of light intensity, also can be used to substitute liquid crystal device material shutter matrix or the sensitive element array from function.The LCD eyeglass 4 on the left side includes sensitive element array 6, and the LCD eyeglass 5 on the right side includes sensitive element array 7, is installed near the outer ledge of Vierendeel girder 30 with the web member of temple 2 and 3.Each sensitive element array 6 and 7 all has the corresponding related photoelectric sensor 10 and 11 that is installed in its back.The user then observes by left LCD eyeglass 4 that comprises the shutter matrix 8 that is associated and the right LCD eyeglass 5 that comprises shutter matrix 9.Control electronic circuit 16 and 17 is installed in each temple 2 and 3, and is communicated with crossbeam 30 through web member 14 and 15.Control electronic circuit 16 and 17 also can interconnect through LR connector 13 (being represented by dotted lines).Pupil location sensor 34 can be installed on the crossbeam determining the position of pupil, and links to each other with control electronic circuit 16.Power supply 18 and 19 and customer controller 20 and 21 also is positioned in temple 2 and 3, as shown in the figure.Power supply 18 and 19 can comprise electric battery, solar cell or other portable power supplies.Therefore, be whole elements of action need in all being included in.Particularly, be provided on the temple 2 and 3 on the ear electronic circuit, controller and power supply are housed, and eyeglass 4 and 5, sensitive element array 6 and 7 and shutter matrix 8 and 9 are housed on the crossbeam 30.
The user is according to traditional approach, places crossbeam 30 by the nose that launches temple and stride across him and wears this active sunglasses, so that LCD eyeglass 4 and 5 is placed on every eye top.When opening the temple parts, power supply just is added on the control electronic circuit 16 and 17 by the switch 12 that is positioned at temple 3 inboards before sunglasses 1 can be placed on the head.Superimposed during with the sunglasses that takes off on flattening from the beginning when the temple parts, switch 12 is opened, and power supply is removed.Low-power indicator 31 (it can comprise LED or other low-power consumption element) is represented as the inboard that is fixed on temple 2.When power reduced, this indicator 31 was lighted to report to the police to the wearer.On the other hand, the some elements in the shutter matrix can be utilized to show the low-power indication.
As shown in Figure 1, each eyeglass 4 and 5 comprises the glass or the plastic substrate of the printing opacity that contains the LCD material, and it comprises two foursquare fast gate arrays 8 and 9, and each fast gate array comprises 8 * 8 matrix elements again, perhaps 64 foursquare elements.Each element in each shutter matrix gives addressing by control circuit 16 and 17.In addition, but the light transmission features Be Controlled of each matrix element so that this element only deepening to the desired degree of lighting condition.On the other hand, any one or whole shutter matrix elements all can be set to deepening to predetermined extent.The user observes by shutter matrix 8 and 9 when wearing sunglasses 1, thereby user's visual field is by the decision of the light transmission state of LCD shutter matrix element.Be radiated at the light quantity size above every eyes retina, can allow one or more LCD element deepening reduce by in the shutter matrix 8 and 9 of continuing to use a line location of imagining between the family retina and the sun.Under normal lighting condition, each element in the shutter matrix 8 and 9 all is transparent.
Referring to Fig. 1, photodetector 10 and 11 is installed in the back of sensitive element array 6 and 7 again, also is divided into 8 * 8 active matrixs.In the course of the work, each sensitive element array is scanned, so that its photodetector that is associated can be to sampling from the light intensity levels of given area in the user visual field or inferring.In this manner, control circuit 16 and 17 can be determined the vector that is associated with each element in the sensitive element array visual field.By the information that obtains in the sensitive element array, be used to subsequently with the suitable element deepening in LCD shutter matrix 8 and 9, so that the light intensity levels in the user visual field is reduced to admissible limit.
Fig. 2 is sunglasses control circuit 16 and 17 a simplified block diagram 32 among Fig. 1.Particularly, the control circuit 16 that is used for left eyeglass 4 comprises microprocessor 33, it links to each other with customer controller 20, link to each other with photodetector 10 with A/D converter 23 by analog processing circuit, link to each other with sensitive element array 6 with shutter matrix 8, link to each other with power supply 18 by switch 12, and optionally link to each other with pupil location sensor 34.Microprocessor 33 sends to each element in the sensitive element array 6 by driver 35 with instruction.Each element that microprocessor 33 also sends to instruction deepening in proportion in the shutter matrix 8 and/or brightens by driver 37.Customer controller 20 can be imported user priority by the user and select data and the information relevant with user's physiology to operate, as explained below.Similarly, the control circuit 17 that is used for right eyeglass comprises microprocessor 43, and it links to each other with customer controller 21, links to each other with photodetector 11 with A/D converter 24 by analog processing circuit, link to each other with shutter matrix 9, and link to each other with power supply 19 by switch 12.Microprocessor 43 sends to each element in the sensitive element array 7 by driver 45 with instruction, and will instruct each element that sends to the deepening in the shutter matrix 9 and/or brighten by driver 47.Customer controller 21 can be operated by user input data.
Be, control circuit shown in Figure 2 comprises two discrete systems with should be understood that, one of every eye, and it comprises sensitive element array, photodetector, shutter matrix and control electronic circuit.Control each in the electronic circuit 16 and 17, can comprise microprocessor, digital signal processor (DSP), customization or semi-custom chip, interface circuit, have the linearity and the electronic circuit component of ROM and RAM and/or some other non-volatile memory device (as EEPROM or battery protection RAM).It is also understood that for the control electronic circuit of each eyeglass and can operate independently, if desired like this, perhaps can pass through LR connector 13 swap datas and instruction.
Each sensitive element array 6 and 7 of active sunglasses among Fig. 1 has the photo-sensitive light electric explorer 10 or 11 that is associated with it, thereby can calculate sun vector independently to each shutter matrix.This information can exchange between the electronic circuit of two eyeglasses through LR connector 13.For example the logical "or" of the output of two sensitive element arrays 6 and 7 processing can be used to the element deepening in two shutter matrixs 8 and 9.This operation means allows on the left eyeglass 4 the LCD element in the shutter matrix 8 accomplish lighttight, be by the information calculated for left eyeglass 4 of control electronic circuit 16, and freely control synthesizing of information that electronic circuit 17 calculates for right eyeglass 5.Similarly, LCD element deepening on the right eyeglass 5 in the shutter matrix 9, be by the data of control electronic circuit 17 in the right side, and the information of being calculated for shutter matrix 8 by control electronic circuit 16 is synthetic from coming out from the information calculations of right sensitive element array 7.Yet in some cases, for example control and do not have contact between electronic circuit 16 and 17, element that so should deepening may not have difference.Therefore, arrangement described herein allows all should to shield the sun or other bright target for every eye, even sensitive element array may be in the dark place or be covered in other certain mode.For example left sensitive element array 7 can be covered the sun or other light source by dirt on the angle brace of windscreen, rearview mirror, the windshield or decalcomania.In addition, dust, sweat, moisture or some other opaque object, itself also can be attached to one or more of sensitive element array 7 above element, this sensitive element array is become have only the part available, yet shutter matrix 9 will work on, and by utilizing the information like that can obtain by sensitive element array 7, and, bright light source is covered by the information that the sensitive element array 6 related with another shutter matrix 8 extracted.Should be appreciated that other information such as user's biasing and other user's constant and mask information, also can exchange between control electronic circuit 16 and 17.
Referring to Fig. 1, customer controller 20 and 21 is along temple parts 2 and 3 a series of switches of installing again, allows that sunglasses 1 operation can customize at user's physiology.The essential switch 20 and 21 that uses of user when using sunglasses 1 for the first time is because importantly be that it can reflect LCD sensitive element array 6 and 7 above shutter matrix element 8 and 9, so that overlapped with the user visual field by the element of deepening.
Fig. 3 is the eyeglass 4 of active sunglasses among Fig. 1 and 5 reduced graph.In Fig. 3, limit every eye starting point of user " 0 " and with corresponding point or some points of one or more element in each shutter matrix, must be determined.Have two kinds of biasings: the biasing of X-axle is marked by A, and the biasing of Y-axle is marked by B.For these user's constants are set, the someone has on sunglasses and goes ahead with its left eye and stare, and right eye is closing, and is centered in the shutter matrix 8 to control electronic circuit 16 and takes that the locational single element of starting point is by deepening as.The user is then by using switch 20 and 21 to control the position of this element, till its single LCD element that has gone ahead when spying on by deepening is centered in its left eye top.Setover or user's constant for these two kinds, be stored in the nonvolatile memory by control electronic circuit 16 and 17 subsequently.Be marked by C the third the biasing, can provide with the related constant of user's eye pitch difference out-phase, be centered on the retina of right eye with the initial point that guarantees shutter matrix 8 on the right eyeglass 5.This can close left eye after finishing by regulating at A and B, moves " target " element of shutter matrix 9 top deepenings in the right eyeglass 5 then, finishes till it is centered in the user's right eye the place ahead stared that goes ahead.With these user's constant A, B, C are stored in the nonvolatile memory of two control electronic circuits 16 and 17, and needn't reinstall then.EEPROM, battery reinforcement RAM or other nonvolatile memory also can use.
After initial the installation, the user only need open framework and glasses are placed on his nose, and the physiological constant A, B and the C that are fit to him just are loaded into.Certainly, these user's constants also can adjusted for different user afterwards, perhaps can be equipped with memory storage and think that many users store these constants.Such system supposition right eye is made uniform with left eye in horizontal plane, because have only three constants to be stored, yet two other constant E and F can be used in more on the complicated model, the user who slightly is offset with the horizontal plane that allows right eye centering can adapt to eyes and this sunglasses.
Between shutter matrix element plane and the user's retina apart from aspect may exist difference (perhaps be because the variation on the health, or because the mode of sunglasses on its nose of wearing that the user selects), thereby must introduce another kind of the correction.It is called as " Z " constant, and allows " solid " angle of the LCD element that control electronic circuit change is transparent, so that user's retina is mended and tasted apart from the difference (the best is expressed as " Z " in Fig. 5) of aspect between the element plane to the shutter matrix.For example, shutter matrix has only a matrix element to be shielded certain high-intensity light signal by deepening near her retina so in each shutter matrix if a user wears active sunglasses.Yet the distance a if user wears active sunglasses between its retina and the shutter matrix increases, have in each shutter matrix so two or more a plurality of matrix element can be shielded same high-intensity light signal by deepening.A kind of means that compensate this user's selection are to enter the setting pattern and use bright light source (as the incandescent lamp or the sun) that this user's constant is optimized.For example, the user moves her head to 30 ° or bigger on either direction when wearing sunglasses, and by the operation customer controller constant Z is changed, till this bright light source is subjected to shielding most effectively.This just allows that the control electronic circuit mirrors the information of sensitive element array in the element of shutter matrix most effectively.This Z adjusts also can be provided to the distance of photodetector by mechanically regulating the sensitive element array.This Z constant is stored in the control electronic circuit subsequently, and is loaded into when powering up.The performance of active sunglasses should be appreciated that suchlike other constant also can be determined, and is stored in a similar way, so that can more optimally be mated with the user.
In all these were discussed, the operation of active sunglasses depended on that the user is positioned at center or other position with his pupil and retina, because this is to be used to limit and the position of the A that packs into, B, C constant.Therefore, the shutter matrix effect of covering will depend on how close pupil is for dead ahead or other position.The user is when wearing active sunglasses, and the rear Be Controlled electronic circuit that association is centered in deepening zone in the shutter matrix with its pupil is thought the place of pupil position.In order to relax this restriction and the working range that broad may be provided, be used for detecting the device of pupil or retina position, may allow that the motion to eyes compensates.Referring to Fig. 1, one or more retina sensor 34 is installed on the framework, in order that determine the position of pupil and this positional information is exported to control system.Control electronic circuit 16 and 17 utilize this pupil position information, adjust the original value that is used to the information in the sensitive element array is mirrored shutter matrix.Suitable element in the shutter matrix can be compensated with the reposition to pupil by deepening subsequently.
For the discussion of following relevant embodiment of the invention operation, the occasion that only relates to the sun will be considered, although very clear, and this device is fit to equally for being used under other occasion that relates to other light source on daytime or night.
Fig. 4 is for only using the simplified block diagram of another embodiment of apparatus of the present invention of an eyeglass.For ease of reference, sunglasses is identical part among Fig. 1 relatively, gives identical numbering.In operating process, control electronic circuit 16 offers lcd driver 52 with sweep signal, by 8 * 8 elements in its driving sensitive element array 6.Element in this sensitive element array 6 is driven, and be transparent so that have only an element in these 64 LCD elements, and other 63 elements is deepenings or opaque.The information that obtains in this manner, the size that relates to the direction glazing that the position by this transparent LCD element limits, the geometry, photodetector 10 and the mask that relate to the sensitive element array relate to the eyeglass that is associated with photodetector or the Optical Device And electric explorer actual relationship to this LCD element.The output of photodetector 10 provides a signal, and it is directly proportional with the light quantity collected in this part visual field that is limited by this transparent element.By this light intensity levels and the light source position of element decision transparent in the LCD scanning element of photodetector the place ahead, determined sun vector.From the signal of photodetector 10, can before input A/D converter 23 or other digital switching device, amplify the light intensity levels that described digital switching device is associated with these elements with digital store by amplifier 53.Yet the measuring of resulting light is light quantity that is obtained by a transparent element and the light quantity that is obtained by 63 opaque elements.If these LCD elements allow that when opaque certain a spot of light passes through, this just is multiplied by 63 times so, and mixes with signal from transparent element.In order to reduce to operate thus the error of generation, a kind of measure is to leak by allowing all these element deepenings and the consequent signal of measurement obtain total light.What so obtain measures V
xBe called as background or dark current.In all 64 element deepenings so that background current or dark current can be measured after, so be present in, be about V therefrom from the error size in the light of chosen transparent element
XiSingle-V
x
After element ground one by one was to whole visual field scanning, the numerical value of the light distribution level in this device visual field that one group of reflection is determined by sensitive element array 6 was collected.Subscriber signal and any threshold value of putting of giving based on previous storage, judge by the control electronic circuit, and send a signal to lcd driver 54, surpass certain threshold value V if come from the light intensity levels of each element of supply of the data that obtain by sensitive element array 6
n, so just, make light conductively-closed or minimizing from one or more position in the visual field by allowing selected one or more element deepening pari passu in the shutter matrix 8.The optional pupil sensor 34 that is represented by dotted lines can be connected with microprocessor circuit 33, compensates with the pupil position to the straight-ahead position that is different from the user's constant that is used to pack into.
Fig. 5 is the side view that sensitive element array and shutter matrix are simplified among Fig. 4.Be, Fig. 5 maps not in scale with should be appreciated that, and eyes 55 and are the expressions of symbol ground from the light of the sun 56, promoting to understand better the present invention.Imagination is when light sensor array 6 is scanned, by a transparent element A
iThe light of collecting surpasses threshold value V
nThe light intensity value that is obtained by some other element is less than this threshold value.Therefore, in the shutter matrix 8 with related sensitive element array 6 in element A
iA corresponding element M of vector
iShould deepening.Concluding of position that should deepening in the shutter matrix 8, be by extract with sensitive element array 6 in produce the corresponding element in position of this signal the position, X
iAnd Y
iThe address, and utilize the biasing constant (perhaps user's constant) that is stored in the non volatile storage location of controlling electronic circuit 16, handle this information.This information is enough to allow needs deepening element M in the shutter matrix 8
iCoordinate setting.By control electronic circuit 16 instruction lcd drivers, this element in the LCD shutter matrix 8 is darkened to needed degree then.Subsequent, the scanning of sensitive element array 6 continues, and measures further in good time revising of visual field, can be addressed as LCD sensitive element array 6, photodetector 10 measures light intensity levels and promptly obtain.In the active sunglasses structure of Fig. 1, this process is carried out separately each eyeglass, the element deepening but this information can be shared in two shutter matrixs 8 and 9.By the information that can select pupil sensor 34 (being illustrated among Fig. 4) to obtain, can be used to adjust the position and/or according to the pupil position of eyes 55, determine should deepening the shutter elements number.
Should be understood that not only a light source or luminous target are controlled by this technology can.Therefore, directly from the light of the sun,, all can be contained by the light of other object reflection and from the light of other light source.In addition, except this fact of average light luminance signals difference, device of the present invention can be used in night, and the situation when it produces many resemble by the road surface by humidity with other object reflection owing to the front lamp of vehicle that comes head-on for the rainy day is effective especially.This device is in the effect of control when many targets, daytime or night, depends on the material that uses in the LCD element and the consideration on figure resolution characteristic, utilizable computational resource, working temperature, power source life and the cost.Particularly, some LCD material viscous that becomes during with temperature decline work, when when using this material in being used in than the sunglasses of cold weather design, this condition must be considered.Further again, if the zone of cremasteric reflex light is bigger or little than original luminous light source, so suitable shutter shape will be adapted to this situation to regulate LCD sensitive element array and shutter matrix element granularity by deepening.In other words, one or more element in the shutter matrix 8 and 9 will require deepening according to suchlike configuration, to reduce the light intensity that eyes receive.
Be also to be understood that device of the present invention can or be subjected to astigmatic vitiator for myopia or long sight and be added on the correction mirror.In addition, also optical filter can be added on the active sunglasses structure and make it preferentially pass through ruddiness.These can be favourable, because it can improve the visibility of taillight under some occasions of driving round the clock.Also can add the ultrared optical filter of retaining, to reduce sunshine to amphiblestroid thermal load.In addition, these eyeglasses can be polarizations.
Therefore, active sunglasses can surpass light intensity in the user visual field the interior light intensity deepening or the reduction in zone of certain calculating or storage standards.The dynamic range of light is defined V in the visual field
a-V
b, V in the formula
aBe the light intensity levels of highlight in the visual field, V
bLight intensity levels for minimum or the most suitable brightness part in the visual field.If make the zone of optical attenuation not produce the low light intensity levels of partly finding than the minimum luminance brightness in visual field of light intensity levels in the visual field on eyes, the dynamic range of total light is reduced in this visual field so, because V
aDescend and V
bConstant.Allow the dynamic range that arrives the light of eyes by shutter matrix, may be subjected to selecting the restriction of the user mode that is fit to.This dynamic range with light intensity levels of active sunglasses is defined as existing visual field value or some gives the performance of the limit of choosing just, has reduced that eyesight laxes, optical interference and avoid the information that loses from the visual field.
The variation ratio of light intensity mean value can pass through to store the data from previous array figure in the visual field, and all new datas of collecting from existing visual field with reference to relative this previous model are reduced.Therefore, any light source or target that exceeds the next light intensity levels of previous thus visual field collection will be lowered aspect intensity.Be stored in the light intensity levels in this reference diagram, can revise at leisure along the direction that real-time sensitive element array figure provides then.So the average intensity level in the visual field will be provided with and the previous selected ratio increase that stores with certain user.Such operation is equivalent to, and after withdrawing from the cinema of deepening, allows before opening one's eyes fully the individual who its eyes is adjusted to the light intensity levels that has improved tilt (Squinting).
Although the sensitive element array 6 and 7 in the structure described above comprises 64 LCD elements, it is corresponding with 64 elements in LCD shutter matrix 8 and 9, also can use yet be different from other structure of 8 * 8.In addition, sensitive element array 6 and 7 and shutter matrix 8 and 9 between different sizes can be arranged, and the LCD element that is had in its row and column also can be different.In addition, the LCD element in shutter matrix and/or the sensitive element array can be square, hexagon, rectangle or circle.Further again, shutter matrix and sensitive element array can be irregular in shape, and each element can be according to its its size of position change in matrix or array and/or shape.Be also to be understood that by asking on average and map operation that control electronic circuit 16 and 17 is finished, allow that varigrained sensitive element and shutter are controlled from operation.In addition, the LCD element of the striped shutter elements or the deepening of having ready conditions can be by complete (the perhaps local deepening) granularity (wherein the sensitive element array is different from shutter matrix aspect the size) with control element.So operation can also compensate gloss or bloom, for example when observing issuable gloss of solar time or bloom by the windshield of coveing with dirt and road oil and so on.
Another kind of model selection is, the deepening area peripheral edge that selection should deepening or the element of adjacency are especially when having only single LCD element to need deepening when covering light source fully on the shutter matrix.This operation is for using sunglasses preferentially to select for use, this is because if having only the discrete component deepening, the slight of head moved so, the perhaps change of vehicle direct of travel, the perhaps variation of light source apparent size, can both cause the new element deepening in the shutter matrix, perhaps other element is because across top deepening.The shutter elements of deepening this beated or glistened may be unwelcome, can reduce with the blocking target source by requiring to give fixed minimum several element deepenings.In addition, these peripheral LCD elements can be by deepening transiently, in order that provide light intensity levels by the smooth change of position, bright areas center (it will make suitable shutter matrix element deepening) to other shutter matrix element.For example, light by the reflection of operator's vehicle shadow shield can only cause the deepening of four shutter matrix elements, yet depend on the mode of operation that the sunglasses user selects, those shutter matrix elements that contact with the element of these deepenings, may have the light transmission capacity that has reduced, so that the light intensity levels that in the visual field, obtains by these elements, may be between the average light intensity levels in the light intensity levels of the element of central deepening and all the other visual fields.This operation can reduce in the visual field otherwise issuable " ink spot " influence, and provide from affected zone to the more general transition in impregnable visual field, and it is more welcome for the certain user.This is a particularly suitable technology for having a large amount of elements especially 8 * 8 or the shutter matrix of greater amount element.This technology can be applied to not only a kind of transition level, and can be extended to away from the zone of bright light source to two or the more a plurality of decay reduction of normal light distributive province.
Using active sunglasses 1 that its operation is adapted to user's hobby and comfortable in a different mode of operation, is possible.Two customer controller or switches above the temple, can be used to and be used in combination, make more complicated operations select and constant is imported and is stored in and controls in the electronic circuit by allowing " icon " on the camera lens that the deepening of shutter matrix element depicts or simulation show.For example, " L " constant of light intensity levels is packed into when taking place in order to determine to decay, and may require the following step.At first, setting means input with operation, it may comprise depresses second switch of the customer controller 20 above the left side support 2 three times, waits by the time till the shutter matrix 8 instantaneous deepenings on the left eyeglass 4 always, depresses the right then and supports twice on first switch on 3.Information can be presented on arbitrary eyeglass, guides one of program of user and Here it is.This sequence of steps will make the user enter the light intensity levels setting means subsequently.Can demonstrate information " SETM " on the eyeglass 4 of a left side, and demonstrate information " SL " on the right eyeglass 5 as " light intensity setting level " threshold value as " manually setting ".If the user has on sunglasses, he feels worried to focusing on to focusing on possibly on the shown like this near information so.Therefore, can be for the technology of preferentially selecting for use, allow customer location itself be in a catoptron the place ahead for this reason when setting program is worn sunglasses, information wherein, icon and so on be spelt in the opposite direction, so that can read in this catoptron.But the element Be Controlled in shutter matrix 8 and 9 is expressed speech by making its deepening, produces icon or other special shape, to guide the user in this process.For the affirmation program, the user depresses first customer controller 20 of right side once.One vertical bar appears at above the shutter matrix 8 of left eyeglass 4 then, indicates this setting with the element of single deepening.First switch 20 of depressing in the left side support 2 can improve threshold value, and the element of deepening will rise to its new position, yet depress second switch 20 in the left side element of deepening is descended.New configuration is stored in the storer, is once to finish by first switches 21 of depressing above the right support 3, the result on left eyeglass 4, obtain as " setting light intensity levels? " show information " SL? "Depress for the second time first switches 21 above the right support 3, will make the information that demonstrates on the left eyeglass 4 as " light intensity levels is set " " SL! ".Depress right switch 21 for the third time and will preserve user's input, withdraw from the set-up mode instruction, and allow sunglasses return normal running.These give the value of putting or user's constant is stored in the nonvolatile memory now, and are packed into automatically when this active sunglasses powers up for use.The person skilled in the art of this area will be clear, and operation described above only is a kind of possible instruction sequences and control setting, and other many variations all are possible.For example, this setting program may require the user to remove sunglasses to read demonstration.
Some other can be by the mode of user control, relates to the LCD element Be Controlled of shutter matrix and decay is offered the mode of the visual field of apparent.The user can two or more kinds of this mode between select, control exceeds to be given the light intensity levels of deciding threshold value and how to be shown.For example, mode 1 can provide maximum decay, so that the light transmission for the LCD element of bright light source position in the visual field is minimized, thereby makes any very bright zone deepening fully.Mode 2 can be to any light source that provides illumination to surpass visual field average intensity level, and it is a certain constant N that numerical value is provided
xDecay, thereby make the peak signal that shows in the user visual field in three times of average intensity levels.Mode 3 can form like this, allows exceed that mean value reaches a certain constant N in the visual field
yAny light source, be attenuated by control shutter matrix LCD element, thereby make light intensity levels by these elements, but unlike more weak from the light intensity levels of smallest elements in the visual field less than the average intensity level in the visual field.At last, mode 4 can form like this, allows the light that exceeds the horizontal several times of average intensity in the visual field be attenuated, thus the luminance brightness of resulting these bright areas, to decay by logarithmic form or logarithm band mode when being observed by eyes of user, above-mentioned logarithm band depends on the intensity of luminance brightness.Active sunglasses can be operated, so that the user need only enter arbitrary mode in set-up mode and the selection mode 1～4, wherein the icon for every kind of mode can be presented on the shutter matrix in the opposite direction or with standard symbol.Urgent mode may also be available, and wherein all LCD elements of one or two eyeglass are switched to the transparent operation under the specific occasion, for example ought have low energy level or under the occasion of rare light level distribution.This can reach by pressing left and right sides temple 2 or 3 all customer controller switches above arbitrary simultaneously.In addition, can allow other light countermeasure realize and, also be feasible by many append modes that the user selects.More perfect model may allow that a user imports threshold light brightness, perhaps allows by not only user some luminance brightness of giving putting are set.On the other hand, these modes can be set earlier in factory give the threshold level of putting, so that use during beginning.
Say that blanketly the LCD material that described invention is formed the shutter matrix element by control can shield the light from bright light source.Convenient part is to control the size of the bright light source decay that is provided by LCD element in the shutter matrix, so that its existence still can be seen, just reduces its intensity, so that its light intensity levels for all the other visual fields is more suitable for.This can be done, because sensitive element array and shutter matrix are that same LCD material is used for corresponding operation.Actual attenuation degree can be by not being the level that changes driving voltage, and the sequential relationship that changes individual component in the LCD matrix is exactly controlled.These processes can be utilized for the sensitive element array and seek suitable Reduction Level, and the dough softening of control shutter matrix.This just provides a kind of mechanism, allows sensitive element be actuated to provide the user needed Reduction Level.
In some cases, the existence of bright light source does not have special stake, so it can be masked fully.In other occasion, for example to drive night, the existence of the taillight of approaching front lamp of vehicle or another vehicle may be extremely important.Therefore,, may produce the bloom or the speck that can not be masked fully, have only reduction intensity from the reflection of headlight on the highway.Therefore, this sunglasses allows that different optical attenuation countermeasures is realized by the user, selects the necessary operations mode by using customer controller or switch, and is provided with and allows the decay effective needed threshold value that becomes.
Embodiments of the invention are described in detail, yet the person skilled in the art of this area now will be clear, and many conversion can be made at this, and do not leave the scope of the present invention that limits in claims.
Claims (57)
1. device that optionally reduces light intensity in human eye or the optical instrument visual field comprises:
-power supply;
-can produce the optical sensor of many strength signals corresponding with light intensity in the visual field;
Have the eyeglass of the energy printing opacity of many program-controlled shutter elements, each shutter elements wherein can be by deepening selectively;
Be used to set the customer controller of user's constant, and
Treatment circuit, it is connected with power supply, customer controller, optical sensor and shutter elements, is used to respect to predetermined value and user's constant the strength signal that is produced be handled, and depends on that result allows some shutter elements deepening.
2. device as claimed in claim 1, optical sensor wherein comprises:
The liquid crystal display cells array of alternative switch, and
Photodetector.
3. device as claimed in claim 2, wherein the element of each alternative switch and shutter elements are in fixed relationship in the optical sensor.
4. device as claimed in claim 1, optical sensor wherein is a photodetector.
5. device as claimed in claim 1, optical sensor wherein are photodetector arrays.
6. device as claimed in claim 1, many program-controlled shutter elements wherein is a liquid crystal display cells.
7. device as claimed in claim 1, power supply wherein is an electric battery.
8. device as claimed in claim 1, power supply wherein is a solar cell.
9. device as claimed in claim 1 further includes the low-power indicator.
10. device as claimed in claim 1 further includes the pupil sensor that links to each other with treatment circuit.
11. device as claimed in claim 1, wherein the eyeglass of light-permeable comprises infrared fileter.
12. device as claimed in claim 1, the eyeglass that wherein can transmit light comprises ultraviolet filter.
13. device as claimed in claim 1, wherein the eyeglass of light-permeable comprises polarizing filter.
14. device as claimed in claim 1, wherein the eyeglass of light-permeable comprises band (logical/resistance) optical filter, to filter infrared non-ruddiness to ultraviolet band.
15. device as claimed in claim 1 further includes the storer that links to each other with treatment circuit.
16. a device that optionally reduces light intensity in the optical instrument visual field comprises:
-power supply;
-can produce the optical sensor of many strength signals corresponding with light intensity in the visual field;
The many program-controlled shutter elements that links to each other with the camera lens of optical instrument, wherein each shutter elements can be by deepening selectively;
Storer, and
Treatment circuit, it links to each other with power supply, storer, optical sensor and shutter elements, is used to respect to the predetermined value that is stored in the storer strength signal that is produced be handled, and depends on that result allows some shutter elements deepening.
17. device as claimed in claim 16, optical sensor wherein comprises:
The liquid crystal display cells array of alternative switch, and
Photodetector.
18. device as claimed in claim 17, wherein the element of each alternative switch and shutter elements are in fixed relationship in the optical sensor.
19. device as claimed in claim 16, optical sensor wherein is a photodetector.
20. device as claimed in claim 16, optical sensor wherein are photodetector arrays.
21. device as claimed in claim 16, many program-controlled shutter elements wherein is a liquid crystal display cells.
22. device as claimed in claim 16, power supply wherein is an electric battery.
23. device as claimed in claim 16 further includes the low-power indicator.
24. the protection eyes device of a kind supporting (Self-contained) is used for reducing the light intensity that eyes receive selectively, comprising:
One has the framework of nose crossbeam and temple;
Be fixed on the power supply on this framework;
At least one optical sensor be fixed on contiguous temple on this framework, and the light intensity that can respond in the visual field produces many strength signals;
Be fixed on the eyeglass of every energy printing opacity on square this framework at the moment, have many program-controlled shutter elements, wherein each shutter elements can be by deepening selectively;
Be used to set the customer controller of user's constant, and
Be fixed on the treatment circuit on this framework, it is connected with power supply, customer controller, optical sensor and shutter elements, be used to the strength signal that is produced be handled, and depend on that result allows some shutter elements deepening with respect to predetermined value and user's constant.
25. device as claimed in claim 24, optical sensor wherein is a photodetector.
26. device as claimed in claim 24, many program-controlled shutter elements wherein is a liquid crystal display cells.
27. device as claimed in claim 24, optical sensor wherein comprises:
The liquid crystal display cells array of alternative switch, and
Photodetector.
28. device as claimed in claim 24, wherein the element of each alternative switch and shutter elements are in fixed relationship in the optical sensor.
29. device as claimed in claim 24, power supply wherein is an electric battery.
30. device as claimed in claim 24, power supply wherein is a solar cell.
31. device as claimed in claim 24, treatment circuit wherein comprises storer.
32. device as claimed in claim 24, customer controller wherein comprise many switches that are fixed on the framework.
33. device as claimed in claim 24 further comprises the switch that is used to switch on and off power supply.
34. device as claimed in claim 24 further includes the low-power indicator.
35. device as claimed in claim 24 further includes the pupil sensor that is connected with treatment circuit.
36. device as claimed in claim 24, two optical sensors wherein are fixed on the framework, and each contiguous eye is used to produce light intensity signal.
37. device as claimed in claim 36, wherein each optical sensor comprises:
The liquid crystal display cells array of alternative switch, and
Photodetector.
38. device as claimed in claim 37, wherein the element of each alternative switch in the optical sensor is in fixed relationship with shutter elements.
39. device as claimed in claim 24, wherein two discrete treatment circuits are fixed on the framework.
40. a method of utilizing light attenuation device, this device have can alternative control the shutter matrix element, reducing from the light intensity size of one or more target in the visual field, it comprises:
Setting comprises user's constant of shutter matrix element locating information;
This user's constant is stored;
Set the threshold value of light intensity;
Utilize the optical sensor scanning field of view and produce light intensity signal;
With respect to user's constant and threshold value, this light intensity signal is handled, and
Allow in the shutter matrix those light intensities surpass and give the element deepening of deciding threshold value.
41. method as claimed in claim 40, light intensity signal wherein was converted into digital signal before it handles generation.
42. method as claimed in claim 40 further comprises; Utilize processed signal with two or more a plurality of shutter matrix on the deepening of shutter matrix element.
43. method as claimed in claim 40 wherein allows the step of shutter matrix element deepening comprise: allow the shutter matrix element be darkened to and the proportional degree of light intensity signal.
44. method as claimed in claim 40 wherein allows the step of shutter matrix element deepening comprise: to allow the shutter matrix element be darkened to and give fixed degree.
45. method as claimed in claim 40 further comprises:
Light intensity signal is stored;
The light intensity signal that stores is handled, and
Utilize processed light intensity signal that the element of deepening is in the past brightened gradually.
46. method as claimed in claim 40 further comprises:
Light intensity signal is stored;
Calculate some mean value that gives first storage values and standard deviation, and
On the basis of this calculating, the penetrability size of control shutter matrix element.
47. method as claimed in claim 40 further comprises:
Light intensity signal is stored;
Determine to give the minimum and the maximal value of first storage values;
Produce the frequency curve of some value of being stored at least, and
On this frequency curve and minimum and peaked basis, the penetrability size of control shutter matrix element.
48. method as claimed in claim 40, the step of wherein setting user's constant comprises:
Depress customer controller;
On catoptron, read by the demonstration of shutter matrix to provide towards rightabout form, and
Set at least one user's constant.
49. method as claimed in claim 40, the step of wherein setting user's constant comprises:
Press customer controller and allow single shutter matrix element deepening on first eyeglass;
The operation customer controller is centered in the place ahead of first eye with this element, and
The centering value of first eye is stored in the storer.
50. method as claimed in claim 49 further comprises;
Close first eye;
Depress customer controller and allow single shutter matrix element deepening on second eyeglass;
The operation customer controller is centered in the place ahead of second eye with this element, and
The centering value of second eye is stored in the storer.
51. method as claimed in claim 40, the step of wherein setting user's constant comprises:
Press customer controller;
On catoptron, read by the demonstration of shutter matrix to provide towards rightabout form, and
Set at least two and give one of user mode of putting.
52. method as claimed in claim 40, threshold value are wherein given by manufacturer and being put.
53. method as claimed in claim 40, user's constant is wherein given by manufacturer and putting.
54. method as claimed in claim 40, threshold value wherein utilizes customer controller to be set.
55. method as claimed in claim 40 further comprises: utilize the element in the shutter matrix to indicate low power state.
56. method as claimed in claim 40 further comprises: the user identification data that stored user constant and confession two or more a plurality of user use, so that not only a people can utilize this device.
57. method as claimed in claim 40 further comprises:
Utilize the pupil sensor to produce the pupil position signal, and
On the basis of pupil position signal, user's constant and light intensity signal, determine to answer the shutter matrix element of deepening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96194558 CN1187252A (en) | 1995-06-07 | 1996-06-06 | Light indensity reduction apparatus and method of reduction |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/476,421 | 1995-06-07 | ||
| CN 96194558 CN1187252A (en) | 1995-06-07 | 1996-06-06 | Light indensity reduction apparatus and method of reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1187252A true CN1187252A (en) | 1998-07-08 |
Family
ID=5128705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96194558 Pending CN1187252A (en) | 1995-06-07 | 1996-06-06 | Light indensity reduction apparatus and method of reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1187252A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445763A (en) * | 2010-10-11 | 2012-05-09 | 宏碁股份有限公司 | Viewing glasses and image light beam adjusting method thereof |
| CN102520530A (en) * | 2006-06-23 | 2012-06-27 | 像素光学公司 | Electronic adapter for electro-active spectacle lenses |
| CN102540484A (en) * | 2010-12-31 | 2012-07-04 | 三星电子株式会社 | Glasses for three-dimensional image display apparatuses |
| CN101853639B (en) * | 2008-10-14 | 2012-08-15 | 欧拓斯技术株式会社 | Functional display type anti-blinding device |
| US8830582B2 (en) | 2010-09-16 | 2014-09-09 | Acer Incorporated | Viewing glasses and image beam adjustment method thereof |
| CN104062772A (en) * | 2014-06-30 | 2014-09-24 | 青岛海信电器股份有限公司 | Method and device for determining regulation area and method and device for regulating light transmissivity |
| CN105866953A (en) * | 2016-06-07 | 2016-08-17 | 北京行云时空科技有限公司 | Permeation rate control method and device based on smart glasses as well as smart glasses |
| CN108151883A (en) * | 2017-12-11 | 2018-06-12 | 合肥英睿系统技术有限公司 | A kind of method, apparatus, equipment and the computer readable storage medium of strong light protection |
| CN108427213A (en) * | 2018-02-23 | 2018-08-21 | 王志贵 | The strong light of night headlight covers glasses |
| CN110291446A (en) * | 2017-02-22 | 2019-09-27 | 三井化学株式会社 | Eyewear |
| CN110462495A (en) * | 2017-04-03 | 2019-11-15 | 密执安州立大学董事会 | For detecting and stopping the eye in dazzle source to wear part automatically |
| CN110618527A (en) * | 2018-06-19 | 2019-12-27 | 苹果公司 | Electronic device with electrically adjustable optical layer |
| CN110646951A (en) * | 2019-09-30 | 2020-01-03 | 福州京东方光电科技有限公司 | Anti-dazzling glasses and anti-dazzling method |
-
1996
- 1996-06-06 CN CN 96194558 patent/CN1187252A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520530A (en) * | 2006-06-23 | 2012-06-27 | 像素光学公司 | Electronic adapter for electro-active spectacle lenses |
| CN101853639B (en) * | 2008-10-14 | 2012-08-15 | 欧拓斯技术株式会社 | Functional display type anti-blinding device |
| US8830582B2 (en) | 2010-09-16 | 2014-09-09 | Acer Incorporated | Viewing glasses and image beam adjustment method thereof |
| CN102445763B (en) * | 2010-10-11 | 2013-11-06 | 宏碁股份有限公司 | Viewing glasses and image light beam adjusting method thereof |
| CN102445763A (en) * | 2010-10-11 | 2012-05-09 | 宏碁股份有限公司 | Viewing glasses and image light beam adjusting method thereof |
| CN102540484B (en) * | 2010-12-31 | 2016-03-16 | 三星电子株式会社 | For the glasses of 3-D image display device |
| CN102540484A (en) * | 2010-12-31 | 2012-07-04 | 三星电子株式会社 | Glasses for three-dimensional image display apparatuses |
| CN104062772A (en) * | 2014-06-30 | 2014-09-24 | 青岛海信电器股份有限公司 | Method and device for determining regulation area and method and device for regulating light transmissivity |
| CN104062772B (en) * | 2014-06-30 | 2016-06-01 | 青岛海信电器股份有限公司 | A kind of method and device determining adjustment region, adjustment light transmission rate |
| CN105866953A (en) * | 2016-06-07 | 2016-08-17 | 北京行云时空科技有限公司 | Permeation rate control method and device based on smart glasses as well as smart glasses |
| CN110291446B (en) * | 2017-02-22 | 2021-10-08 | 三井化学株式会社 | Eyewear |
| CN110291446A (en) * | 2017-02-22 | 2019-09-27 | 三井化学株式会社 | Eyewear |
| CN110462495B (en) * | 2017-04-03 | 2021-03-12 | 密歇根大学董事会 | Eye wearing piece for automatically detecting and blocking glare source |
| CN110462495A (en) * | 2017-04-03 | 2019-11-15 | 密执安州立大学董事会 | For detecting and stopping the eye in dazzle source to wear part automatically |
| CN108151883A (en) * | 2017-12-11 | 2018-06-12 | 合肥英睿系统技术有限公司 | A kind of method, apparatus, equipment and the computer readable storage medium of strong light protection |
| CN108427213A (en) * | 2018-02-23 | 2018-08-21 | 王志贵 | The strong light of night headlight covers glasses |
| CN110618527A (en) * | 2018-06-19 | 2019-12-27 | 苹果公司 | Electronic device with electrically adjustable optical layer |
| US11243403B2 (en) | 2018-06-19 | 2022-02-08 | Apple Inc. | Electronic devices having electrically adjustable optical layers |
| CN110618527B (en) * | 2018-06-19 | 2022-03-01 | 苹果公司 | Electronic device with electrically adjustable optical layer |
| CN110646951A (en) * | 2019-09-30 | 2020-01-03 | 福州京东方光电科技有限公司 | Anti-dazzling glasses and anti-dazzling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5671035A (en) | Light intensity reduction apparatus and method | |
| AU2021218127B2 (en) | Electronic Spectacles | |
| EP1991905B1 (en) | Vehicle rearview assembly including a high intensity display | |
| US5276539A (en) | Method and apparatus for controlling perceived brightness using a time varying shutter | |
| CN1187252A (en) | Light indensity reduction apparatus and method of reduction | |
| EP0498143A1 (en) | Active anti-dazzle device for the drivers of cars and other motor vehicles | |
| JPS60117218A (en) | Liquid crystal antidazzling type reflecting mirror | |
| CN101592793B (en) | Full-automatic angle shading eyeglasses | |
| CN207627483U (en) | A kind of Auto-changing Shade Welding Mask Made | |
| CN218400147U (en) | Sun visor, sun visor mounting structure and vehicle | |
| JPH05203906A (en) | Antidazzling system | |
| GB2283103A (en) | Anti-glare device | |
| CN109633929B (en) | Lens device, eyeglass apparatus, and light ray adjusting method | |
| KR20220164117A (en) | Method and apparatus for compensating light spread while night driving | |
| US20240111180A1 (en) | Goggles device, goggles, method for operation | |
| CN105438073A (en) | Display control method for automobile body, automobile body controller and automobile | |
| JPH069933B2 (en) | Anti-glare device for vehicle | |
| JPS62121420A (en) | Antidazzle spectacle | |
| JP3010458B2 (en) | Safety glasses | |
| JP2022176582A (en) | Anti-glare device and anti-glare method | |
| KR20180058152A (en) | Sunglasses equipped color control | |
| JPH03210433A (en) | Brightness of front view detector | |
| CN117192808A (en) | Spectacle lens, intelligent glasses control method and display device | |
| JPS62297822A (en) | Method for controlling automatic glare-proof mirror | |
| JPS5924889A (en) | Electrooptic display unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |