CN1287284A - Reading optical filter and filtering glasses capable of preventing and treating ametropia - Google Patents

Abstract

The present invention relates to optical filter, filter plate, filter film, filter glasses and filter for hanging on glasses. The present invention provides transparent filter, filter glasses, etc. capable of filtering partial or all light of long wavelength to prevent and treat myopia and provides transparent filter, filter glasses, etc. capable of filtering partial or all light of short wavelength to prevent and treat hyperopia. Wearing the filter, the filter glasses, etc. can prevent and treat amertropia of teenage.

Description

Can prevent and treat ametropic reading optical filter and filter goggle

The present invention relates to prevent closely to regard optical filter, plate, film and the filter goggle and the extension that use in the industry as and wear formula filter goggle sheet with supplemental treatment myopia or the ametropic reading of long sight etc.

Myopia is ametropia can be caused and develop because of the long-time close eye that continues.Particularly adolescence is read because of study and is excessively used eye, has become the high main cause of rate of myopia.Existing use in can be used for reading prevent and to treat the method for myopia few.Wherein, the generation and the development of pre-myopia prevention, and can treat under certain condition myopia method, the glasses that Chinese patent application 89219609 (Granted publication number 2081103) proposes, more representative, its utilizes the optical mirror slip that certain refractive power is arranged, change the working direction of light, reduce adjusting, set and the rotation demand of eye when near-distance reading, reduce with the eye load, thus pre-myopia prevention.Being studies confirm that the bifocal slasses of certain prevention reading property myopia effect over the past two years gradually by international ophthalmology, promptly is to have adopted similar principle, has utilized the principle of reduction regulatory demand wherein only merely.But the main prevention or the therapeutic action of these glasses often are confined to it and can cause that eye is in the acyclic homologically trioial joint or bears adjustment state when reading.This makes the effect of glasses be subjected to the influence of the state of service range and use eye, thereby practical application is caused certain difficulty.That does not see the employing optical filter that is used for reading or filter goggle in the prior art as yet prevents or treats the ametropic method of long sight.In addition, in the prior art, the filter goggle of certain color can be used to treat some diseases, but finds the special optical filter or the filter goggle that can effectively prevent and treat myopia or long sight that can use in reading.Though Chinese patent application 93102324 (notification number 1078558) has proposed to treat the glasses that have the red filter sheet of myopia, but will point out as the application, not only red lens glasses can not be treated myopia, can strengthen the myopia process of eye on the contrary.

The objective of the invention is, be provided at near-distance reading or other with using in the eye, not influenced by the dioptric and the adjustment state of reading distance and user's eye, can prevent or the optical filtering thing (optical filter, plate, film) of supplemental treatment myopia, with can prevent or the filter goggle or the extension of supplemental treatment myopia are worn formula filter goggle sheet, and can prevent or the optical filtering thing (optical filter or plate, film) of supplemental treatment long sight and can prevent or the filter goggle or the extension of supplemental treatment long sight are worn formula filter goggle sheet.

The applicant studies near-sighted problem untiringly through for many years, find, different spectral component in the available light can constitute the ametropic stimulation that causes of different nature to eye when reading.To focus on the retina of eye be example to 560 nano wave length light of spectrum when reading, and before the light that wavelength is lower than 560 nanometers focused on retina, the character of its stimulation was the ametropia variation that causes the long sight direction; After the light that wavelength is higher than 560 nanometers focused on retina, this kind stimulation caused the ametropia variation of myopia direction; Under the natural light condition of routine, when adopting the reading material near-distance reading of white gravoply, with black engraved characters, regulate the center light wavelength that stimulates and be about the 580-590 nanometer, because the negative feedback control mechanisms of regulating, adjusting with respect to the light of above-mentioned wavelength stimulates, and conditioned reaction on average falls behind the 0.2-0.4 diopter.At this moment, the above above light of light, particularly 580 nanometers of 560 nanometers that wavelength is long will cause stronger near-sighted sexual stimulus; And the short following following light of light, particularly 540 nanometers of 560 nanometers of wavelength will cause the long sight sexual stimulus.Technical scheme of the present invention is, utilize the suitable transparent optical filtering thing that can in reading, be placed between reading material and the eye, comprise optical filter, filter, filter coating, or filter goggle, maybe can hang the extension that is worn on the spectacle-frame and wear the formula filter glass, respectively the long light wave composition of the part or all of wavelength of filtering uses in reading, can prevent and supplemental treatment (comprising treatment) low coverage to read the myopia and the myopia that cause ametropia; According to same design, utilize the suitable transparent optical filtering thing that can in reading, be placed between reading material and the eye, comprise optical filter, filter, filter coating, or filter goggle, maybe can hang the extension that is worn on the spectacle-frame and wear the formula filter glass, correspondingly the short light wave composition of the part or all of wavelength of filtering respectively uses in reading, can prevent and supplemental treatment (comprising treatment) long sight ametropia.Below ametropia ametropia at prevention or treatment myopia respectively with long sight, further specify technical scheme of the present invention.

For prevention in reading and treatment myopia, the characteristic of used transparent optical filtering thing is, the light that allows whole or most of shorter wavelength is by (transmitted light), and absorb or reflection (being filtering) partly or most of or whole long light wave (this is the non-transmitted light of described optical filtering thing) of wavelength; Perhaps, the light of shorter wavelength is had relative high transmittance, and the light of longer wavelength is had relatively low transmissivity, the ratio of both transmissivities can be more than about 1.5 to 1, for example 2: 1, or 3: 1, or 4: 1, even higher, for example 8: 1 or more than.Generally speaking, the high more effect of this ratio is good more.Described shorter wavelength can be the following wavelength of 590 nanometers, for example below 580 or 560 nanometers, perhaps below 555 nanometers, perhaps below 550 nanometers, perhaps below 540 nanometers, perhaps below the 535-500 nanometer.The wavelength that permission is passed through is low more, and the adjusting of eye is stung intense little, can cause the facilitation of relatively large set to conditioned reaction, thereby help to reduce the hysteresis of adjusting; But simultaneously, allow the wavelength that passes through low more, stimulate the spectrum of regulating narrow more, when spectrum is too narrow, become big, will offset the facilitation of set regulating based on the regulating error of negative feedback mechanism.Therefore, can be according to the adjusting negative feedback mechanism characteristic of eye, in conjunction with illumination condition, determine the wavelength upper limit numerical value that the whole or big portion of permission passes through, usually get about 570 nanometers, the thing that then filters has good versatility, is used for reading using, and has the effect of more general pre-myopia prevention and supplemental treatment myopia; And the upper limit is got 550 nanometers, and perhaps 540 nanometers perhaps between the 540-490 nanometer, can strengthen the effect of using treatment myopia in its reading to a certain extent, the eye stronger to regulating power, better effects if.Be lower than the more short wavelength of 490 nanometers, its effect will obviously weaken.Its described absorption or reflecting part or most of or whole long light wave of wavelength, its wavelength lower limit can be the wavelength that corresponds respectively to the above-mentioned shorter wavelength upper limit, for example 570,560,555,550,540,535-500, or between the 540-490 nanometer; Perhaps get about 590 nanometers, or about 580 nanometers, perhaps between the 580-600 nanometer, perhaps between the 600-650 nanometer, be higher than 650 nanometers, its effect will obviously weaken.Special, of the present invention in reading the characteristic of the used optical filtering thing of prevention and treatment myopia can be that so-called lower passband is logical filter: promptly transmitted light or main transmitted light wavelength occupy a scope between the 580-380 nanometer, for example 570-430 (cyan accent) nanometer; Perhaps 560-480 nanometer (dark green tone); Perhaps 570-490 (green hue) nanometer.The logical optical filtering thing of above-mentioned band can further reduce the aberration of eye, improves vision definition.Should be noted that, optical filtering thing of the present invention, except that filtering part or big portion or whole aforementioned longer wavelength light wave, preferably also further filtering near infrared part light, for example, the light wave of filtering (absorbing or reflection) part or big portion or whole 650-1000 nano wave lengths, or the light wave of filtering (absorbing or reflection) part or big portion or whole 650-3000 nano wave lengths, the light wave of also only filtering (absorbing or reflection) part or big portion or whole 700 (or 760)-3000 (even 10000) nano wave lengths.Because above-mentioned near infrared light also can quicken the growth and the myopiaization of eyeball.Following digital watch provides the object lesson that prevents and treat the characteristic (representing with transmittance) of the used optical filtering thing of myopia of the present invention in reading: should point out, because the gradually changeable of the continuity of spectrum and general material transmittance, the transmittance among the present invention refers generally to the mean value in certain section wavelength coverage.Wavelength nanometer example 1 example 2 examples 3 examples 4 examples 5 examples 6 examples 7 examples 8 examples 9 examples 10 examples 11380～450＞0.7＞0.8＞0.8＜0.2＞0.5＜0.3＜0.3＜0.2＞0.5＞0.8＞0.3

～480?＞0.7 ＞0.8 ＞0.8 ＜0.2 ＞0.6 ＞0.4 ＜0.3 ＜0.2 ＞0.5 ＞0.8 ＞0.3

～490?＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～500?＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～530?＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.9 ＞0.9 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～540?＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.5

～550?＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～560?＞0.7 ＞0.8 ＞0.8 ＜0.2 ＞0.8 ＞0.6 ＞0.8 ＜0.3 ＞0.5 ＞0.8 ＞0.4

～570?＞0.7 ＞0.8 ＞0.8 ＜0.2 ＞0.8 ＞0.5 ＜0.5 ＜0.3 ＞0.4 ＞0.8 ＜0.2

～580?＜0.3 ＜0.4 ＞0.7 ＜0.2 ＜0.5 ＜0.3 ＜0.3 ＜0.2 ＜0.25?＞0.8 ＜0.2

～590?＜0.3 ＜0.4 ＞0.6 ＜0.2 ＜0.2 ＜0.3 ＜0.2 ＜0.1 ＜0.2 ＞0.8 ＜0.1

～600?＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.2 ＜0.2 ＜0.1 ＜0.1 ＜0.2 ＞0.8 ＜0.1

～610?＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＞0.8 ＜0.1

～650?＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＞0.8 ＜0.1

～700?＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＞0.8 ＜0.1

～750?＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＞0.8 ＜0.1

～1000＜0.3 - - - - - - - - ＜0.2 -

～2000＜0.3 - - - - - - - - ＜0.2 -

～3000＜0.3 - - - - - - - - ＜0.2 -

～1000＜0.3 - - - - - - - - - -

Annotate: "-" expression does not limit.

Obviously, according to Design Conception of the present invention, promptly the transparent shade of Shi Yonging is higher to the short-wavelength visible light transmitance, and the long wavelength light transmitance is lower, only otherwise change this design philosophy, the numeral on the appropriate change in the table can provide other many examples of the present invention.But should be noted that, change its spectral transmittance, the effect of its prevention or treatment myopia is changed.Obtain better effects, generally the short-wavelength light transmitance is preferably reached more than 0.7, as 0.8-0.9; And the long wavelength light transmitance is preferably lower than 0.3, for example below 0.2 or 0.1.Change its spectral transmittance characteristic continuously, can also provide more example, for example its transmittance curve is respectively the transparent shade of the curve of each shape of illustrating as Fig. 1-4, all can be used as the optical filtering thing or the filter goggle eyeglass of prevention of the present invention or supplemental treatment myopia.The longitudinal axis is the transmittance of transparent shade among Fig. 1 to Fig. 4, desirable arbitrary unit, and wherein the transmittance of the peak of every curve is lower than 1 (1 represent transmittance be 100%); Transverse axis is an optical wavelength, and numerical value unit is a nanometer.Be to save the space, every figure draws 4-5 bar light transmittance curve independently on the transmittance numerical values recited each other, and each bar light transmittance curve is represented a kind of optical signature of transparent shade of the present invention, respectively with digital 1-5 sign.By the colour vision perception of eye, the material of different transmittances can present different colors.For example, transmittance is the material of flatbed peak value, and peak wavelength is respectively more than 610 nanometers, more than 580 nanometers, between the 560-610 nanometer, between the 540-590 nanometer, below 580 or 570 nanometers, below 560 nanometers, between the 570-500 nanometer, between the 560-490 nanometer, below 540 nanometers, below 520 nanometers, below 500 nanometers, other wavelength light transmitances are lower or do not see through substantially, and corresponding color is roughly redness, redness is pink colour slightly, yellow, yellow are slightly green, cyan, darkcyan, green, green are slightly blue, blue-green, turquoise, blueness.Be that the transmitance peak wavelength moves down into the shortwave side gradually from the long wave side, the color that presents gradually becomes " cool colour " from " warm colour ".Because the spectral transmittance of filter can change in visible spectrum continuously, therefore can present thousands of kinds of colors.The transparent optical filtering thing of prevention of the present invention and treatment myopia, its color are substantially based on blue or green, green, blue, dark green, malachite look, ultramarine, blue-green, yellowish green etc. " cool colour ".

Can utilize filter glass or stained glass, or film and the optical filter of interlayer is made above-mentioned transparent shade; For ease of often moving, utilize that filter or colored organic glass or plastics, or synthetic resin or other similar materials, particularly wear-resisting material is made above-mentioned transparent shade, will be more favourable.Above-mentioned transparent shade is made suitable size, (thickness can be used for controlling transmittance for shape and thickness, use so that be suitable under different illumination, reading), make it can be convenient to be seated in appropriate location between reading material and the eye, cover reading material, promptly constitute the optical filtering thing that can in reading, prevent and treat myopia of the present invention.For example, get the size of books size, or the size of display screen screen size, be suitable for respectively using in books reading and the display screen reading.For example get tabular, sheet or membranaceous.Also can on transparent shade, increase edge, support, the set thing is being held thing, and attachment is convenient to support, set, hand-held or decoration.For example at proximal edge place affix clip or be easy to draw back repeatedly deadlocked adhesive sticker and make the set thing.Making non-quadrangle form also can increase ornamentally, and Xin Xing global shape for example has the shape at corrugated edge, perhaps, and outstanding animal head of edge system or claw or tail shape, or the like.Especially, on transparent shade, make hollow structures such as right quantity and size, the cavity of shape, saturating empty frame, bar, decoration function is not only arranged, also can save material, and help eye when the place, cavity of the no writing of pan, to improve conditioned reaction relatively, reduce total regulating error, thereby strengthen the effect of prevention and treatment myopia.In addition, transparent shade is done as a whole, its shading surface can be divided into mass part arbitrarily, the transmittance characteristic of various piece can be inequality, form different colors, promptly colorful shade not only has decorative effect, also help to reduce the chromatic adaptation phenomenon that the shade of single transmittance causes in long-time the reading, reduce visual fatigue.

Utilize above-mentioned transparent shade, comprise that colorful shade and the shade that has a hollow structure do that eyeglass is made glasses or extension is worn the formula eyeglass, promptly obtain filter goggle or the extension that prevents or treat myopia of the present invention and wear the formula filter glass.Wear these glasses or eyeglass in the reading, can receive the effect of prevention and treatment myopia.Wherein, the eyeglass of top band hollow structure is convenient to alternately look far away and is looked near.Use for ease of the eye that refractive error is arranged, this eyeglass can further be made myopia, myopic astigmatism according to the refractive error that uses eye, or long sight, hypermetropic astigmatism eyeglass; Or bifocus, multifocal lens; Or the prism eyeglass, use for stravismus or heterophoria eye.

Optical filtering thing of the present invention and filter goggle use in reading, can optionally intercept or reduce longer wavelength light and inject eyes, reduce retina speckle that longer wavelength light the forms spread effect to eyeball growth expansion; The effect of the long sight process of the speckle exciting eye that relative simultaneously enhancing shorter wavelength light forms on retina; In addition, the visual environment of less long wavelength's light and more short wavelength light also can reduce the adjusting quantity of stimulus, can reduce the conditioned reaction amount of eye on the one hand, the eye that reduces when reading is regulated load, help to increase the facilitation of set on the other hand, reduce the control lag error of looking nearly of eye regulating; Filtering part light, also can suitably reduce contrast, reduce the luminous energy inject eye, thereby reduce the reading fatigue of eye.Thereby make optical filtering thing of the present invention and filter goggle that the effect of prevention and treatment myopia be arranged.

Below provide examples more of the present invention.These examples should not be considered as any limitation of the invention.

The cyan of the employing standard synthetic resin filter of losing lustre is made into the rectangle optical filter that the length of side is 13 centimeters and 19 centimeters, is suitable for being clipped in 32 and opens in the books, constitutes the transparent anti-dazzling screen of prevention and treatment myopia in the reading of cyan of the present invention.For ease of this anti-dazzling screen and printing paper are adjacent to, a side of anti-dazzling screen can be attached with double-sided adhesive and paste.

Adopt outward appearance for green organic or synthetic resin filter is made into the rectangle optical filter that the length of side is 16 centimeters and 22 centimeters, be suitable for being clipped in 16 books of opening, constitute prevention and the near-sighted transparent anti-dazzling screen of treatment in the reading of green of the present invention.For ease of this anti-dazzling screen and printing paper are adjacent to, the upside of anti-dazzling screen or lower edge can be attached with a Small clamp, or foldable flanging.

Adopt outward appearance to be made into the rectangle filter that the length of side is 34 centimeters and 22 centimeters for blue glass or plastics filter, be suitable for covering on two printing surfaces about 16 books of opening of opening, constitute the transparent anti-dazzling screen of prevention and treatment myopia in the reading of blueness of the present invention.For ease of supporting and hand-held this shadow shield that moves, the edge of shadow shield can be attached with plastic frame.

Adopting outward appearance is that dark green filter is made into the rectangle filter coating that the length of side is 16 centimeters and 22 centimeters, is suitable for being clipped in 16 books of opening, and constitutes prevention and the near-sighted transparent photomask of treatment in the dark green reading of the present invention.For ease of this photomask and printing paper are adjacent to, the upside of photomask or lower edge can be attached with foldable flanging, can be folded to below the paper, in order to using paper clamping up and down.

Adopt outward appearance to be made into the rectangle filter that the length of side is 30 centimeters and 22 centimeters for green glass or resin filter, the affix stationary installation, make it to be suitable for to hide on 14 inches display screens, constitute the transparent anti-dazzling screen that can in the reading of using display, prevent and treat myopia of green of the present invention.

Adopting outward appearance is that yellowish green filter is made into the rectangle optical filter that the length of side that wavy edge modifies is 12 centimeters and 18 centimeters, be suitable for being clipped in 32 books of opening, constitute prevention and the near-sighted transparent anti-dazzling screen of treatment in the yellowish green reading of the present invention.For ease of this anti-dazzling screen and printing paper are adjacent to, a lateral edges of anti-dazzling screen can be attached with a Small clamp, or foldable flanging.

Adopt outward appearance to be made into the rectangle optical filter that the length of side is 16 centimeters and 22 centimeters for green filter, be suitable for being clipped in 16 books of opening, and the empty frames of a plurality of strips of on optical filter, engraving out rule or irregular alignment by the width and the spacing of the line space of reading material, constitute the transparent anti-dazzling screen of prevention and treatment myopia in the reading of band hollow out of green of the present invention.

Adopt outward appearance to be made into the leaf optical filter that external diameter is 19 centimeters and 23 centimeters for green, cyan or green, cyan, blue alternate filter, suitable son is clipped in 16 books of opening, and constitutes the transparent anti-dazzling screen of prevention and treatment myopia in the reading of broken colour of the present invention.For ease of decorating and handing, also can produce the projecting edge of similar petiole in its leaf bottom.

Make eyeglass with filter used in the various embodiments described above respectively, make glasses, can obtain the filter goggle that can in reading, prevent and treat myopia of the present invention.Its eyeglass can further be made the eyeglass of correction of refractive errors, is suitable for having the eye of refractive error to use.Eyeglass is made prism structures, be suitable for having stravismus or heterophoric eye to use; Wherein, eyeglass is made end prism structures laterally, can also increase the set effect of eye in the reading, further reduce and look nearly regulating error.In addition, use, also above-mentioned filter can be made into to hang and wear formula eyeglass type shade, can hang in the use and be attached on the common spectacles picture frame, be used for prevention and treatment myopia for ease of the people with glasses.

One of best embodiment of the present invention is, adopting thickness is the 1-2 millimeter, with wear-resisting synthetic resin is base material, its spectral transmittance is the peak value near power between wavelength 490-570 nanometer, shown in the curve in the accompanying drawing 33, and be higher than 0.8, and it is lower at other wavelength coverage transmittances, particularly its transmitance of the above light wave of wavelength 590 nanometers is lower than 0.2 or 0.1 optical filter, make suitable dimensions, as the transparent anti-dazzling screen of prevention of the present invention and treatment myopia, its color mass-tone be green, be suitable for most of general books read in use.Make eyeglass with such filter and make glasses, promptly obtain one of best embodiment of the filter goggle of prevention of the present invention and treatment myopia, be suitable for that majority is faced and low ametropic eye uses.Also can be made into to hang and wear the formula eyeglass, cooperate glasses to use.

Another best embodiment of the present invention is, adopting thickness is the 1-2 millimeter, with wear-resisting synthetic resin is base material, its spectral transmittance is the peak value near power between wavelength 400-565 nanometer, shown in the curve 3 of accompanying drawing 1, and be higher than 0.8, and it is lower at other wavelength coverage transmittances, particularly its transmitance of the above light wave of wavelength 590 nanometers is lower than 0.2 or 0.1 optical filter, make suitable dimensions, as prevention of the present invention with treat near-sighted transparent anti-dazzling screen, its color mass-tone is a cyan, is suitable for regulatory function most of eyes on the weak side and uses in general books are read.Do with such filter that eyeglass is made glasses or extension is worn the formula lens, promptly obtain the filter goggle of prevention of the present invention and treatment myopia or another best embodiment that extension is worn the formula lens, be applicable to that emmetropia and low ametropic eye that most of regulatory functions are on the weak side use.

For prevention in reading and treatment long sight, the characteristic of the transparent optical filtering thing that the present invention is used is, allows light whole or most of longer wavelength to pass through, and absorb or reflection (being filtering) partly or most of or whole wavelength light wave of weak point; Perhaps, the light of longer wavelength is had relative high transmittance, and the light of shorter wavelength is had relatively low transmissivity, the ratio of both transmissivities can be more than about 1.5 to 1, for example 2: 1, or 3: 1, or 4: 1, even higher, for example 8: 1 or more than.Generally speaking, the high more effect of this ratio is good more.Described longer wavelength can be the above wavelength of 550 nanometers, for example more than 580 nanometers, perhaps more than 570 nanometers, perhaps more than 560 nanometers, perhaps more than 590 nanometers, perhaps more than 600 nanometers.The wavelength that permission is passed through is high more, the adjusting thorn of eye is intense big, and the set that can cause diminishing relatively is to the facilitation of conditioned reaction and bigger control lag error, regulate the myopia facilitation of speckle thereby help to increase, reach the effect of prevention and treatment long sight eye; But simultaneously, allow the wavelength that passes through high more, the spectrum that sees through is narrow more, when spectrum is too narrow, can cause that illumination is low excessively, causes eye to be easy to fatigue.Therefore, can determine the wavelength lower limit numerical value that the whole or big portion of permission passes through, get usually about 570 nanometers that the thing that then filters has good versatility, is used for reading using, and has more general prevention long sight and the effect of supplemental treatment long sight in conjunction with illumination condition; And lower limit is got 610 nanometers, and perhaps 600 nanometers perhaps between the 580-600 nanometer, can strengthen the effect of using the treatment long sight in its reading to a certain extent, the eye stronger to regulating power, better effects if.Lower limit is got the more short wavelength who is lower than 570 nanometers, and its effect will obviously weaken.Its described absorption or reflecting part or most of or whole short light wave of wavelength, its wavelength upper limit can be the wavelength that corresponds respectively to above-mentioned longer wavelength lower limit, for example 570,610,600, between the 580-600 nanometer; Perhaps get about 590 nanometers, or about 580 nanometers.Be higher than 610 nanometers, because luminous energy reduces, its effect can be affected; To obviously weaken and be lower than 560 nanometer effects.Special, of the present invention in reading the characteristic of the used optical filtering thing of prevention and treatment long sight can be that so-called upper passband is logical filter: promptly transmitted light or main transmitted light wavelength occupy a scope between the 560-760 nanometer, for example 590-700 nanometer; Perhaps 600-750 nanometer; Perhaps 600-700 nanometer.The logical optical filtering thing of above-mentioned band can further reduce the aberration of eye, improves vision definition.Should be noted that, optical filtering thing of the present invention, except that seeing through, preferably also further see through part, the major part or whole of wavelength, to strengthen the facilitation of above-mentioned infrared light to ocular growth at the near infrared light of 760-3000 nanometer than many parts or big portion or the whole aforementioned longer wavelength light wave.

Following digital watch provides the object lesson that prevents and treat the spectral characteristic (representing with average transmittance) of the used optical filtering thing of long sight of the present invention in reading: wavelength nanometer example 1 example 2 examples 3 examples 4 examples 5 examples 6 examples 7 examples 8 examples 9 examples 10 examples 111000～770-----＞0.7＞0.7＞0.7＞0.7＞0.8＞0.3

～760 ＞0.7 ＞0.8 ＞0.8 ＜0.2 ＞0.8 ＞0.7 ＞0.8 ＞0.6 ＞0.5 ＞0.8 ＞0.3

～700 ＞0.7 ＞0.8 ＞0.8 ＜0.2 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～600 ＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.9 ＞0.7 ＞0.6 ＞0.8 ＞0.5

～590 ＞0.7 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～580 ＜0.5 ＜0.4 ＜0.2 ＞0.8 ＞0.8 ＞0.8 ＞0.8 ＞0.7 ＞0.5 ＞0.8 ＞0.4

～570 ＜0.3 ＜0.4 ＜0.2 ＞0.6 ＞0.8 ＜0.5 ＞0.8 ＜0.5 ＞0.5 ＞0.7 ＜0.4

～560 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.5 ＜0.3 ＜0.5 ＜0.4 ＜0.3 ＜0.5 ＜0.3

～550 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.5 ＜0.3 ＜0.5 ＜0.3 ＜0.3 ＜0.4 ＜0.3

～540 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.5 ＜0.3 ＜0.4 ＜0.3 ＜0.3 ＜0.4 ＜0.2

～530 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.5 ＜0.3 ＜0.3 ＜0.2 ＜0.25 ＜0.4 ＜0.2

～520 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.2 ＜0.3 ＜0.2 ＜0.1 ＜0.2 ＜0.4 ＜0.1

～490 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.2 ＜0.2 ＜0.1 ＜0.1 ＜0.2 ＜0.4 ＜0.1

～510 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＜0.4 ＜0.1

～500 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＜0.4 ＜0.1490～460 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＜0.4 ＜0.1380～450 ＜0.3 ＜0.4 ＜0.2 ＜0.2 ＜0.1 ＜0.2 ＜0.1 ＜0.1 ＜0.1 ＜0.4 ＜0.1

Annotate: "-" expression does not limit.

Obviously, according to Design Conception of the present invention, promptly the transparent shade of Shi Yonging is higher to the wavelength visible transmitance, and the short-wavelength light transmitance is lower, only otherwise change this design philosophy, the numeral on the appropriate change in the table can provide other many examples of the present invention.But be noted that to change its spectral transmittance, the effect of its prevention or treatment long sight is changed.Generally the long wavelength light transmitance is preferably reached more than 0.7, as 0.8-0.9; And the short-wavelength light transmitance is preferably lower than 0.3, for example below 0.2 or 0.1.Change its spectral transmittance characteristic continuously, can also provide more example, for example its transmittance curve is respectively the transparent shade of the curve of each shape of illustrating as Fig. 5-7, all can be used as the optical filtering thing or the filter goggle eyeglass of prevention of the present invention or supplemental treatment long sight.The longitudinal axis is the transmittance of transparent shade among Fig. 5 to Fig. 7, desirable arbitrary unit, and wherein the transmittance of the peak of every curve is lower than 1 (1 represent transmittance be 100%); Transverse axis is an optical wavelength, and numerical value unit is a nanometer.Every figure provides 4-5 bar light transmittance curve, and each bar light transmittance curve is represented a kind of optical signature of transparent shade of the present invention, indicates with digital 1-5 respectively.

Can utilize filter glass or stained glass to make above-mentioned transparent shade; Obviously,, utilize that filter or colored organic glass or plastics for ease of often moving in using and being difficult for fragmentation, perhaps synthetic resin material, or other macromolecular materials, particularly wear-resisting material is made above-mentioned transparent shade, will be more favourable.Above-mentioned transparent shade is made suitable size, (thickness can be used for controlling transmittance for shape and thickness, use so that be suitable under different illumination, reading), make it can be convenient to be seated in appropriate location between reading material and the eye, cover reading material, promptly constitute the optical filtering thing that can in reading, prevent and treat long sight of the present invention.For example, get the size of books size, or the size of display screen screen size, be suitable for respectively using in books reading and the display screen reading.For example get tabular, sheet or membranaceous.Also can on transparent shade, increase edge, support, the set thing is being held thing, and attachment is convenient to support, and set is hand-held or decorate, for example at proximal edge place affix clip or be easy to draw back repeatedly deadlocked adhesive sticker and make the set thing.Make non-quadrangle form also can increase ornamental, the global shape of leaf shape for example, with the shape at difform edge, perhaps, outstanding animal head of edge system or claw or tail shape, or the like.

In addition, transparent shade is done as a whole, its shading surface can be divided into mass part arbitrarily, the transmittance characteristic of various piece can be inequality, form different colors, promptly colorful shade not only has decorative effect, also help to reduce the chromatic adaptation phenomenon that the shade of single transmittance causes in long-time the reading, reduce visual fatigue.

Utilize above-mentioned transparent shade, comprise that colorful transparent shade makes eyeglass and make suspension type lens or glasses, can obtain of the present invention the prevention or the filter goggle or the suspension type shading eyeglasses sheet of supplemental treatment long sight.Wear these glasses or eyeglass in the reading, can receive the effect of prevention and treatment long sight.Use for ease of the eye that refractive error is arranged, this eyeglass can further be made myopia, myopic astigmatism according to the refractive error that uses eye, or long sight, hypermetropic astigmatism eyeglass; Or bifocus, multifocal lens; Or the prism eyeglass, use for stravismus or heterophoria eye.

Optical filtering thing of the present invention and filter goggle use in reading, can optionally intercept or reduce shorter wavelength light and inject eyes, reduce the retina speckle inhibiting effect that growth is expanded to eyeball that the shorter-wavelength light line forms; The effect of the myopia process of the speckle exciting eye that relative simultaneously enhancing longer wavelength light forms on retina; In addition, the visual environment of more long wavelength's light and less short wavelength light also can increase the adjusting quantity of stimulus, increases the control lag error of looking nearly of eye; Filtering part light, also can suitably reduce contrast, reduce the luminous energy inject eye, thereby reduce the reading fatigue of eye.Thereby make optical filtering thing of the present invention and filter goggle that the effect of prevention and treatment long sight be arranged.

Below provide several object lesson of the present invention.

Adopt the red plastic filter to be made into the rectangle optical filter that the length of side is 13 centimeters and 19 centimeters, be suitable for being clipped in 32 and open in the books, constitute prevention in the reading of redness of the present invention and treat the transparent anti-dazzling screen of long sight.For ease of this anti-dazzling screen and paper are adjacent to, a side of anti-dazzling screen can be attached with double-sided adhesive and paste.

Adopting outward appearance is that pink colour or carmine organic or synthetic resin filter are made into the rectangle optical filter that the length of side is 16 centimeters and 22 centimeters, be suitable for being clipped in 16 books of opening, constitute the transparent anti-dazzling screen that prevents and treat long sight in pink colour of the present invention or the carmine reading.For ease of this anti-dazzling screen and printing paper are adjacent to, the upside of anti-dazzling screen or lower edge can be attached with a Small clamp, or foldable flanging.

Adopting outward appearance is that redness, carmetta, yellowish red color or redness, the alternate filter of pink colour are made into the leaf optical filter that the line of apsides is respectively 23 centimeters and 19 centimeters, be suitable for being clipped in 16 books of opening, constitute the transparent anti-dazzling screen of prevention and treatment long sight in the reading of broken colour of the present invention.For ease of decorating and handing, also can produce the projecting edge of similar petiole in its leaf bottom.

Make eyeglass with filter used in the various embodiments described above respectively, make glasses, can obtain the filter goggle that can in reading, prevent and treat long sight of the present invention.Its eyeglass can further be made the eyeglass of correction of refractive errors, is suitable for having the eye of refractive error to use.Eyeglass is made prism structures, be suitable for having stravismus or heterophoric eye to use; Wherein, eyeglass is made end prism structures to the inside, can also reduce the set effect of eye in the reading, further increase and look nearly regulating error.In addition, use, also above-mentioned filter can be made into to hang and wear formula lens type shade, can hang in the use and be attached on the common spectacles picture frame, be used for prevention and treatment long sight for ease of the people with glasses.

One of best embodiment of the present invention is, adopt thickness 1-2 millimeter, with lightweight wear-resistant synthetic resin is base material, its spectral transmittance is the peak value near power between wavelength 750-590 nanometer, shown in curve among Fig. 62, and be higher than 0.8, and it is lower at other wavelength coverage transmittances, particularly its transmitance of the following light wave of wavelength 570 nanometers is lower than 0.1 optical filter, make suitable dimensions, as the transparent anti-dazzling screen of prevention of the present invention and treatment long sight, its color mass-tone be red, be suitable for most of general books read in use.Make eyeglass with such filter and make glasses, promptly obtain one of the best embodiment of the filter goggle of prevention of the present invention and treatment long sight, be applicable to that most of emmetropias and low ametropic eye use.

The known glasses that can be used as the treatment amblyopia of red filter goggle use, but in the prior art and do not know red filter goggle to be used for prevention or treatment long sight.

Transparent shade, the glasses of prevention of the present invention and treatment myopia and long sight, or wear formula lens type shade for the extension that the people with glasses uses, preferably grow the teenager who does not stop as yet and use use at the moment, can receive best effects in lasting near-distance reading or other for eye.For example, use for adolescent student, particularly the very unsettled student of refractive status in 10-16 year uses.The adult uses, and effect will be had a greatly reduced quality.

The transparent filter goggle of above-mentioned prevention of the present invention and treatment myopia and long sight, or wear formula eyeglass type shade for the extension that the people with glasses uses, though mainly use use at the moment in near-distance reading or other, can receive best effects, but use looking when far away, the effect of certain prevention and treatment myopia and long sight is also arranged.

Claims (16)

1 one kinds are mainly used in the industry reading to wait closely to regard as, be suitable for being seated in eye and regard as to hide between the industry object and regard the industry object as, be used to prevent and treat the transparent optical filter (or filter, filter coating) of myopia, it is characterized in that, this transparent optical filter can optionally see through more short-wavelength light, and stops the light wave of more longer wavelength to penetrate.

The 2 transparent optical filters that are used to prevent and treat myopia according to claim 1 is characterized in that, this optical filter to the transmitance of short-wavelength light with to the ratio of the transmitance of long wavelength light greater than 1.5.

The 3 transparent optical filters that are used to prevent and treat myopia according to claim 1 is characterized in that this optical filter is higher than 0.7 to the transmitance of described short-wavelength light, and the transmitance of long wavelength light is lower than 0.2.

The 4 transparent optical filters that are used to prevent and treat myopia according to claim 1 is characterized in that, also contain the structure of sky on this optical filter.

5 according to the described transparent optical filter that is used to prevent and treat myopia of claim 1 to 4, it is characterized in that, its short-wavelength light that sees through is the following light of wavelength 580 nanometers optionally morely.

6 according to the described transparent optical filter that is used to prevent and treats myopia of claim 1 to 4, it is characterized in that, this optical filter is rendered as the arbitrary single color in the following listed color or the broken colour of its combination in any: cyan, green, blueness, dark green, the malachite look, cyanic colours, blue-green, yellow green.

7 according to the described transparent optical filter that is used to prevent and treat myopia of claim 1 to 4, it is characterized in that, this optical filter is described to be the 400-570 nanometer through more short wavelength's optical wavelength.

8 according to the described transparent optical filter that is used to prevent and treat myopia of claim 1 to 4, it is characterized in that, this optical filter is described to be the 490-570 nanometer through more short wavelength's optical wavelength.

9 one kinds are mainly used in the industry reading to wait closely to regard as, are used to prevent and treat the filter goggle of myopia, or hang and wear formula filter goggle sheet, it is characterized in that its transparent glasses lens is made by the described optical filter of claim 1 to 8.

10 1 kinds are mainly used in the industry reading to wait closely to regard as, be suitable for being seated in eye and regard as to hide between the industry object and regard the industry object as, be used to prevent and treat the transparent optical filter (or filter, filter coating) of long sight, it is characterized in that, this transparent optical filter can optionally see through more long wavelength light, and stops the light wave of more shorter wavelength to penetrate.

11 optical filters that are used to prevent and treat long sight according to claim 10 is characterized in that, this optical filter to the transmitance of long wavelength light with to the ratio of the transmitance of short-wavelength light greater than 1.5.

12 optical filters that are used to prevent and treat long sight according to claim 10 is characterized in that this optical filter is higher than 0.7 to the transmitance of described long wavelength light, and the transmitance of short-wavelength light is lower than 0.2.

13 according to the described optical filter that is used to prevent and treat long sight of claim 10 to 12, it is characterized in that, its long wavelength light that sees through is the above light of wavelength 580 nanometers optionally morely.

14 according to the described transparent optical filter that is used to prevent and treat long sight of claim 10 to 12, it is characterized in that this optical filter is rendered as the following listed arbitrary single color or the broken colour of its combination in any: redness, pink colour, carmetta, yellowish red color.

15 according to the described transparent optical filter that is used to prevent and treat myopia of claim 10 to 12, it is characterized in that, this optical filter is described to be the 590-750 nanometer through more long wavelength's optical wavelength.

16 1 kinds are mainly used in the industry reading to wait closely to regard as, are used to prevent and the filter goggle or the extension for the treatment of long sight worn formula filter goggle sheet, it is characterized in that its transparent glasses lens is made by the described optical filter of claim 10 to 15.

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