CN101604073A - Achromatopsia-correcting glasses - Google Patents

Abstract

The invention provides a kind of achromatopsia-correcting glasses, comprise left and right sides picture frame and be installed in the interior colour blindness correcting lens of left and right sides picture frame respectively, wherein, be coated with on the inboard of an eyeglass based on making the three primary colours ratio be tending towards correcting normally the coatings of curve of spectrum T (λ), and be coated with on the inboard of another eyeglass based on making lightness be tending towards correcting normally curve of spectrum T ' coatings (λ), correct curve of spectrum T ' and (λ) obtain by translation rectification curve of spectrum T (λ).Preferably, have dye layer respectively on the outside of two eyeglasses of this achromatopsia-correcting glasses, described dye layer makes that the color of described two eyeglasses reflection is similar.The patient wears according to behind the achromatopsia-correcting glasses of the present invention, and the primary colours of eyes, tone, saturation degree colour and lightness all are tending towards normal.

Description

Achromatopsia-correcting glasses

Technical field

The invention belongs to the visual optics field.More particularly, relate to a kind of achromatopsia-correcting glasses.

Background technology

Colour blindness is a kind of heredity physiological defect, and this defective is because out of proportion the causing of three primary colours R (red), the G (green) that patient's brain receives, B (indigo plant) vector.The researchist develops various achromatopsia-correcting glasses and colour blindness correcting method at present.For example, Chinese patent No.90110297.0, CN1236902A, Jap.P. JP2813743, JP3773230 and U.S. Pat 5369453, US5917573A, and in the monographs such as " human colour vision introductions " collaborateed of " the colour blindness rectification introduction " that people such as Chen Xiaoguang showed published of Jilin science and technology publishing house, Chen Xiaoguang, hackneyed phrases, old scheme that military medicine Science Press publishes, some colour blindness antidote and achromatopsia-correcting glasses are disclosed.But the light transmission rate of these achromatopsia-correcting glasses is low, makes achromatopsia-correcting glasses have a strong impact on eyesight under the situation of insufficient light.

More particularly,, be broken down into three primary colours R, G, B after coloured light incides in the human eye, and absorbed λ generation values R (λ), G (λ), B (λ) by three kinds of cone cells according to " human colour vision introduction " chapter 4.By the retina matrixing, reconcile out luminance signal L and colour difference signal U, V, be delivered to corpus geniculatum lateral through optic nerve fiber tractus opticus and optic chiasma then, decode R, G, B again and to the radiation of cerebral cortex vision area at this, make brain produce colour vision F (λ), and $F\left(\mathrm{\λ}\right)=\stackrel{\→}{R}+\stackrel{\→}{G}+\stackrel{\→}{B},$ The three primary colours vector sum is represented colourity.On the other hand,

The expression lightness.The colour vision of supposing the achromate is F (λ), wears according to the colour vision that produces behind the achromatopsia-correcting glasses of correcting curve of spectrum T (λ) manufacturing to correcting colour vision

And $\stackrel{\&RightArrow;}{F}\left(\mathrm{\&lambda;}\right)=F\left(\mathrm{\&lambda;}\right)\&times;T\left(\mathrm{\&lambda;}\right).$ Because 0≤T (λ)≤1, so $\stackrel{\&RightArrow;}{F}\left(\mathrm{\&lambda;}\right)<F\left(\mathrm{\&lambda;}\right),$ Then make lightness

Reduce greatly.

Summary of the invention

The objective of the invention is to overcome above-mentioned defective of the prior art, propose a kind of new achromatopsia-correcting glasses, the patient can make colour vision three primary colours and lightness all be tending towards normal after wearing this achromatopsia-correcting glasses by corrective prescription.

For achieving the above object, the present invention has adopted such principle: the function (referring to " experimental psychology " the 13rd chapter of Science Press's publication) that has competition, fusion and integration according to the vision of human eyes, patient's eyes are worn correct the three primary colours ratio and be tending towards normal eyeglass, and the another eyes are worn and are corrected lightness and be tending towards normal eyeglass, make thus colour vision three primary colours and lightness these two all be tending towards normal.

More specifically, according to the present invention, a kind of achromatopsia-correcting glasses is provided, comprise left and right sides picture frame and be installed in the interior colour blindness correcting lens of left and right sides picture frame respectively, wherein, be coated with on the inboard of an eyeglass based on making the three primary colours ratio be tending towards correcting normally the coatings of curve of spectrum T (λ), and be coated with on the inboard of another eyeglass, correct curve of spectrum T ' and (λ) correct curve of spectrum T (λ) and obtain by translation based on making lightness be tending towards correcting normally curve of spectrum T ' coatings (λ).

Preferably, have dye layer respectively on the outside of two eyeglasses of this achromatopsia-correcting glasses, described dye layer makes that the color of described two eyeglasses reflection is similar.

After the patient wears according to the above-mentioned achromatopsia-correcting glasses that comprises two kinds of correcting lenses of the present invention, make eyes after correcting reach primary colours, tone, saturation degree colour and lightness and all be tending towards normal.Because lightness improves, and does not also affect one's power of vision in environment with dark light.In addition,, make the outer appearnce of this achromatopsia-correcting glasses be similar to sunglasses, played the effect of protection patients ' privacy because dye layer makes that the color of described two eyeglasses reflection is similar.

Description of drawings

By below in conjunction with the detailed description of accompanying drawing, will understand above-mentioned purpose of the present invention and advantage better to the preferred embodiment of the present invention.Identical or similar Reference numeral is represented identical or similar parts.

Fig. 1 shows and makes the three primary colours ratio be tending towards correcting normally curve of spectrum T (λ).

Fig. 2 shows the eyeglass of correcting the three primary colours ratio.

Fig. 3 shows and makes lightness be tending towards correcting curve of spectrum T ' normally (λ).

Fig. 4 shows the eyeglass of correcting lightness.

Fig. 5 is according to the synoptic diagram that comprises the achromatopsia-correcting glasses of two different eyeglasses of the present invention.

Embodiment

Achromatopsia-correcting glasses and manufacture method thereof according to the preferred embodiment of the invention are described below.

The at first definition of brief description colour blindness kind and step, and make the three primary colours ratio be tending towards normal rectification.Utilize the color vision detector of describing among color vision detector, for example Chinese patent ZL00136472.3 can detect patient's colour blindness kind and step.That finds at present has 4 class colour blindness, i.e. Ar, Ag, Ab and Br class colour blindness (the just A described in the Chinese patent ZL00136472.3, B, C, D class colour blindness), and the implication of this 4 class colour blindness is respectively:

Ar class colour blindness: R＞G＞B, promptly two kinds of primary colours of G, B are low;

Ag class colour blindness: G＞B＞R, promptly two kinds of primary colours of B, R are low;

Ab class colour blindness: B＞R＞G, promptly two kinds of primary colours of R, G are low;

Br class colour blindness: R＜G=B, promptly R primary colours are low.

Every class colour blindness has 6 steps respectively.Can detect its three primary colours ratio of sening as an envoy at each step and be tending towards correcting normally curve of spectrum T (λ).That is to say,, may detect 24 altogether and correct curve of spectrum T (λ) at each 6 step of above 4 class colour blindness.By known film is method for designing, can produce the colour blindness correcting lens corresponding to specific rectification curve of spectrum T (λ) in vacuum coating equipment.

According to the present invention, as follows at the achromatopsia-correcting glasses and the manufacture method thereof of particular patient.Particularly, be example with the low Ag class colour blindness of two kinds of primary colours of R, B.Suppose that the result who detects with the color vision detector of Changchun Ji Yu Optical Co., Ltd and Shanghai Weixing Optical Technology Co., Ltd.'s joint production is Ag1, i.e. Ag class the 1st step colour blindness, and record as shown in Figure 1 rectification curve of spectrum T (λ).

Then, the peak point of T (λ) curve of spectrum is moved to the wavelength location that makes the lightness maximum, to determine making lightness be tending towards correcting curve of spectrum T ' normally (λ).Should determine that correcting curve of spectrum T ' step (λ) realized in the following manner.Allow the achromate of this colour blindness kind and step (in this example for Ag1) on eyes, wear and have the colour blindness correcting lens of correcting curve of spectrum T (λ) with this colour blindness kind and step accordingly, make the three primary colours ratio be tending towards normal immediately.Then, on the another eyes, wear identical eyeglass, and this eyeglass is flipped an angle, make patient's lightness colour vision reach best, and can discern all smoothly and detect chart.Then, on spectrophotometer, calculate the translation wave long value according to making patient's lightness colour vision reach best described eyeglass flip angle, to obtain curve of spectrum T ' (λ).

Then, can be method for designing by known film, according to correcting curve of spectrum T (λ) and T ' is (λ), in vacuum coating equipment, produce a pair of colour blindness correcting lens corresponding to the described rectification curve of spectrum.

Particularly, substrate shown in Fig. 2 200 is put into coating machine, rectification curve of spectrum T (λ) according to the rectification three primary colours ratio shown in Fig. 1, plate coatings 202 by the design of film system in the inboard of substrate 200 (promptly near eyes one side), obtain being used to correct the eyeglass 20 of three primary colours ratio thus.Similarly, the substrate among Fig. 4 400 is put into coating machine, according to the curve of spectrum T ' of the raising lightness shown in Fig. 3 (λ), plate coatings 402 in the inboard of substrate 400, obtain being used to correct the eyeglass 40 of lightness thus according to the design of film system.From Fig. 1 and Fig. 3 as can be seen, about two lenses 20 identical with 40 rectification curve of spectrum shape, peak wavelength position difference just.Preferably, two eyeglasses 20 are identical with Coating Materials with 40 coating layers.

According to a preferred embodiment of the present invention, also, dyeed in the outside (opposition side of a side of close eyes) of its substrate, make that two catoptrical colours of eyeglass are similar according to the reflected light colour of a pair of colour blindness correcting lens.Specifically,, promptly be used to correct the eyeglass 20 of three primary colours and be used to correct the eyeglass 40 of lightness, apply dye layer 201 and 401 respectively, make that these two eyeglasses 20 and 40 catoptrical colours are similar in the outside of its substrate 200 and 400 for above-mentioned pair of lenses.

At last, in the left and right sides picture frame of two kinds of eyeglasses 20 and 40 mirror holders that are installed in respectively, form achromatopsia-correcting glasses, as shown in Figure 5.

After the patient wore according to achromatopsia-correcting glasses of the present invention, the eyes after feasible the rectification reached primary colours, tone, saturation degree colour and lightness and all are tending towards normal.In addition,, make the outer appearnce of this achromatopsia-correcting glasses be similar to sunglasses, patient's privacy has been played protective effect because dye layer makes that the color of two eyeglasses reflection of achromatopsia-correcting glasses is similar.

The flow process of achromatopsia-correcting glasses according to the preferred embodiment of the invention and manufacture method thereof has more than been described.Need to prove, only be schematic and nonrestrictive to the explanation of embodiment.Those skilled in the art can make various modifications under situation without departing from the spirit and scope of the present invention.Protection scope of the present invention is only limited by the accompanying Claim book.

Claims (4)

1, a kind of achromatopsia-correcting glasses, comprise left and right sides picture frame and be installed in two interior colour blindness correcting lenses of left and right sides picture frame respectively, it is characterized in that, be coated with on the inboard of an eyeglass based on making the three primary colours ratio be tending towards correcting normally the coatings of curve of spectrum T (λ), and be coated with on the inboard of another eyeglass based on making lightness be tending towards correcting normally curve of spectrum T ' coatings (λ), correct curve of spectrum T ' and (λ) obtain by translation rectification curve of spectrum T (λ).

2, achromatopsia-correcting glasses according to claim 1 is characterized in that, has dye layer on the outside of described two eyeglasses respectively, and described dye layer makes that the color of described two eyeglasses reflection is similar.

3, achromatopsia-correcting glasses according to claim 1 is characterized in that, described rectification curve of spectrum T ' is by the peak point of correcting curve of spectrum T (λ) is moved to the wavelength location of lightness maximum to be obtained (λ).

4, achromatopsia-correcting glasses according to claim 1 is characterized in that, the coating layers of described two eyeglasses is identical with Coating Materials.

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