CN201282965Y - Color vision detector - Google Patents

Abstract

The utility model discloses a color vision detector, which comprises a casing, a display and a control device, wherein the display is arranged in the casing, and the control device is arranged in the casing and is coupled to the display, is used to control the display to display a color vision detecting chart corresponding to different achromatopsia types for a detected person to distinguish and determine the achromatopsia types, and is used to control the display to quantificationally change the proportion of three primary colors of the color vision detecting chart for the detected person to distinguish and determine achromatopsia steps. By colorizing and digitizing color vision of people and according to the digital definition of the achromatopsia type and the achromatopsia steps, the utility model fast inspects false achromatopsia and monochromasia, Ar, Ag and Ab achromatopsia with two weak primary colors, Br, Bg and Bb achromatopsia patients with one weak primary color and the steps thereof, can check achromatopsia correction effect, and prints detection results and correction formula.

Description

Color vision detector

Technical field

This utility model belongs to medical instruments field, more particularly, relates to a kind of opticianry instrument that is used to carry out colour vision detection and the checking of achromatopsia rectification effect.

Background technology

Traditional tool and method that is used for examination of color sense is concluded 4 kinds: colour vision plates, color discrimination detector, magic lantern inspection and anomaloscope.These methods all can not be carried out quantitative check to achromatopsia, and the testing result error is very big.Some people is developing the color vision detector device in recent years, relevant patent of invention document has: denomination of invention is the Chinese patent No.00136472.3 of " colour vision detection/antidote and equipment and application thereof ", denomination of invention is the U.S. Pat 7 of " Methodand device for detecting/correcting color vision and their application ", 198,369, and denomination of invention is the Chinese patent No.90200939.7 of " achromatopsia computer diagnostic correcting instrument ".In addition, in " human colour vision introduction " (publish in July, 2002 for Chen Xiaoguang, hackneyed phrases, Chen Mouzhu, military medicine Science Press) relevant color vision detector device is disclosed also.But disclosed color vision detector device is not the chart that is confined to quote disclosed colour vision plates or works out voluntarily in the above-mentioned document, and semicircle is matched colors to recently diagnosing out achromatopsia kind and step about just being based on.Because these methods are not the colored quantification of colour vision, the error of colour vision testing result is bigger, and can not in the scale health check-up, diagnose out achromatopsia, two kinds of achromatopsia and low achromatopsia of a kind of primary colours that primary colours are low quickly and accurately, thereby the effect that influence detects.

The utility model content

Main purpose of the present utility model is the problems referred to above that overcome prior art, provides a kind of and can diagnose out the kind of achromatopsia and the color vision detector of step quickly and accurately.

This utility model further purpose provides a kind of detected person of making is not subjected to external interference when detecting color vision detector.

This utility model further purpose provides a kind of color vision detector that can verify the achromatopsia rectification effect.

For achieving the above object,, propose a kind of color vision detector, comprising: housing according to this utility model; Be arranged on the intravital display of described shell; And control device, be arranged in the described housing and be coupled to described display, be used to control the colour vision plates of described display demonstration corresponding to different achromatopsia kinds, discern to determine the achromatopsia kind for the detected person, and be used to control the three primary colours proportioning that described display changes colour vision plates quantitatively, discern to determine the achromatopsia step for the detected person.Described colour vision plates by the undistinguishable two kinds of colors of various achromatopsia respectively as background color and figure Colour composition.

Brief description of drawings

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

Fig. 1 shows the overall structure according to the color vision detector of this utility model preferred embodiment.

Fig. 2 shows the internal structure according to the color vision detector of this utility model preferred embodiment.

Fig. 3 shows the structure of the achromatopsia rectification effect checking wheel disc that adopts in the color vision detector according to this utility model preferred embodiment.

Fig. 4 shows the functional block diagram of the control circuit of achromatopsia rectification effect checking wheel disc.

Fig. 5 shows the method for colour vision detection is carried out in utilization according to the color vision detector of this utility model preferred embodiment flow chart.

Fig. 6 shows and shows that on display colour vision plates, confession detected person identification are to determine the achromatopsia kind.

Fig. 7 shows the three primary colours proportioning, the confession detected person that change colour vision plates on display quantitatively and discerns to determine the achromatopsia step.

The specific embodiment

Fig. 1 shows the overall structure according to the color vision detector of this utility model preferred embodiment.The housing of Reference numeral 100 overall these color vision detectors of expression.This housing 100 for example adopts ABS plastic, processes by the plastic uptake rapid shaping technique.The front panel of housing 100 is provided with button 101, display lamp 102 and type slug outlet 106.Button 101 is used to realize the selection of the position of rotation of lens slewing disc, and display lamp 102 is used to indicate the position of rotation (will be described in more detail it hereinafter) of lens slewing disc.Type slug outlet 106 is used for printout testing result and corrective prescription.The front portion of housing 100 also is provided with indicator gate 103, hereinafter the liquid crystal display of describing is exposed from this indicator gate 103.The rear portion of housing 100 is provided with eyes loophole 104, observes the colour vision plates that is presented on the display that is positioned at the housing rear side therein for the detected person.The side of housing 100 is provided with external interface 105, can connect input/output devices such as mouse, keyboard by this external interface 105.

Fig. 2 shows the structure according to housing 100 inside of the color vision detector of this utility model preferred embodiment.As shown in Figure 2, computer motherboard 201 is installed on the base plate, this computer motherboard 201 is as the central control unit that each ingredient (comprising display part, printing portion, rotation roulette part) of color vision detector is carried out whole control.According to preferred embodiment of the present utility model, this color vision detector comprises two synchronous high-resolution (for example 800 * 600 pixels) colour liquid crystal display device 202a and 202b.Liquid crystal display 202a is positioned near housing 100 forward positions, and exposes from the indicator gate shown in Fig. 1 103, for doctor's monitoring.Another liquid crystal display 202b is positioned at the position near housing 100 rear portions, and corresponding with the position of eyes loophole 104, observes by eyes loophole 104 for the detected person.Video distribution card 203 is coupled with liquid crystal display 202a and 202b, is used to make these two liquid crystal displays to show synchronously.Adopt the advantage of two liquid crystal displays that show synchronously to be, the detected person is not subjected to external interference when detecting, and the testing result that obtains thus is more accurate.Printer circuitry 206 is used to control printhead 207, and testing result that printhead 207 is printed and corrective prescription are from the outlet of the type slug shown in Fig. 1 106 outputs.Keyboard/mouse interface 205 is connected with the external interface 105 shown in Fig. 1, is used to receive the instruction from the keyboard/mouse input.Also show power module 204 among Fig. 2, be used for each ingredient power supply color vision detector.

Fig. 3 shows the structure of the achromatopsia rectification effect checking wheel disc 300 that adopts in the color vision detector according to this utility model preferred embodiment.As shown in FIG., two lens slewing discs 302 are rotatably installed on the fixing head 301.Lens slewing disc 302 is provided with a plurality of achromatopsia correcting lenses 303 corresponding to different achromatopsia kinds and step, and described achromatopsia correcting lens 303 is based on the pairing achromatopsia of the three primary colours correction value that calculates according to the three primary colours exceptional value and corrects the curve of spectrum, is that Design and Machining forms by film.Fixing head 301 is arranged on eyes loophole 104 inboards shown in Figure 1 together with lens slewing disc mounted thereto 302.Also show motor 304 among Fig. 3, lens slewing disc 302 can rotate under the driving of motor 304.The next door of motor 304 also is provided with position sensor (plate 301 that is fixed among Fig. 3 blocks and be invisible), is used for the position of rotation of sensing lens slewing disc 302.

Fig. 4 shows the functional block diagram of the control circuit of achromatopsia rectification effect checking wheel disc 300.Wherein with identical Reference numeral refer to Fig. 1 and Fig. 3 in identical parts.Central control unit 201 is coupled with button 101 and display lamp 102.Button 101 comprises the button that is used to restart and is used to control the button of the rotating selection of motor 304.Display lamp 102 for example is a LED light, and each display lamp corresponds respectively to an eyeglass.Comprise 16 eyeglasses 303 among this embodiment, therefore one have 16 display lamps 102.Central control unit 201 is coupled to motor-drive circuit 304, the rotation of the latter and then driving lens slewing disc 302.Position sensor 401 is used to detect lens position, and sends detected position signalling to central control unit 201, to realize the accurate location of eyeglass.During start just, central control unit 201 control lens slewing discs 302 rotate to seek initial position.After detecting initial position (that is, just in time aiming at lens barrel 305 corresponding to the achromatopsia correcting lens 303 of initial position), corresponding initial position display lamp 102 is lighted.Then, central control unit 201 is waited for the order of button 101, with the selection according to button 101 lens slewing disc 302 is rotated to make corresponding eyeglass 303 just in time aim at the position of lens barrel 305.The detected person can observe the display 202b that is positioned at housing 100 inside by lens barrel 305 and then by achromatopsia correcting lens 303, verifies the achromatopsia rectification effect thus.

The following describes in definition to all kinds of achromatopsia according to color vision detector of the present utility model.Chapter 4 " mathematical model of human colour vision process and the simulation of achromatopsia " and chapter 5 " colour vision information processing and color rendering computer simulation " according to aforementioned " human colour vision introduction ", the human eye visible spectrum is 380-760nm, and distinguishable tone is 183 kinds.In addition, high-resolution color liquid crystal display (for example 800 * 600 pixels) has the performance that three primary colours R (red), G (green), B (indigo plant) respectively have 63 lightness steps to change.The tristimulus value naturalization, then the variation of the step of three primary colours R, G, B is respectively based on this characteristic

By providing the colour of a certain quantity ratio in a zone on computer screen (for example big square of on the screen), for example:

Brightness is 1 yellow, and allows and checked that the patient (for example is positioned at a little square area of described big square) by input equipment such as mouses in another zone and allots same color.That is to say, be normal person's colored proportioning value in the big square, and be achromate's colored proportioning value in the little square, for example

For other colour, can adopt similar method to carry out proportioning and detect.Detect through the proportioning to yellow, cyan, purple and white, can detect achromate and normal person's the unusual difference of three primary colours, detected thus achromatopsia kind is defined as follows respectively:

(1) R, G, B three primary colours all lack the achromatopsia of not having.

(2) two kinds of category-A achromatopsia that primary colours are low comprise:

Ar class achromatopsia: R wherein〉G〉B, promptly two kinds of primary colours of G, B are low;

Ag class achromatopsia: G wherein〉B〉R, promptly two kinds of primary colours of B, R are low;

Ab class achromatopsia: B wherein〉R〉G, promptly two kinds of primary colours of R, G are low.

(3) the low category-B achromatopsia of a kind of primary colours comprises:

Br class achromatopsia: R＜G=B wherein, promptly R primary colours are low,

Bg class achromatopsia: G＜B=R wherein, promptly G primary colours are low,

Bb class achromatopsia: B＜G=R wherein, promptly B primary colours are low.

This utility model gives the quantification definition of the different steps of the four class achromatopsia Ar, Ag, Ab and the Br that have been found that at present.Wherein, each step is all corresponding to one group of R, G, B exceptional value and a group R, G, the B correction value opposite with this exceptional value.

Ar class achromatopsia: as mentioned above, the colored proportioning domain of definition of this type of achromatopsia is R〉G〉B.Wherein, $\frac{36}{63}<R-B<\frac{55}{63},$ R, G, B exceptional value are respectively

R, G, B correction value are respectively

$(\frac{40}{63},\frac{45}{63},\frac{51}{63})...(\frac{36}{63},\frac{45}{63},\frac{55}{63})$ , correspond respectively to Ar1, Ar2 ..., these six steps of Ar6.

Ag class achromatopsia: as mentioned above, the colored proportioning domain of definition of this type of achromatopsia is G〉B〉R.Wherein, $\frac{36}{63}<G-R<\frac{55}{63}$ , R, B, G exceptional value are respectively

, R, B, G correction value are respectively

$(\frac{51}{63},\frac{45}{63},\frac{40}{63})...,(\frac{55}{63},\frac{45}{63},\frac{36}{63})$ , correspond respectively to Ag1, Ag2 ..., these six steps of Ag6.

Ab class achromatopsia: as mentioned above, the colored proportioning domain of definition of this type of achromatopsia is B〉R〉G.Wherein, $\frac{36}{63}<B-G<\frac{55}{63}$ , B, R, G exceptional value are respectively

, B, R, G correction value are respectively $(\frac{40}{63},\frac{45}{63},\frac{51}{63})...(\frac{36}{63},\frac{45}{63},\frac{55}{63})$ , correspond respectively to Ab1, Ab2 ..., these six steps of Ab6.

Br class achromatopsia: as mentioned above, the colored proportioning domain of definition of this type of achromatopsia is R＜G=B.Br class achromatopsia is that its intensity of anomaly is a step by translation 10nm because the peak point of red cone cells photostimulation value function curve causes to the translation of shortwave direction from 640nm.More particularly, this peak value moves 10nm to 60nm to shortwave, is defined as the Br1 step when skew 10nm, is defined as the Br2 step when skew 20nm ..., when skew 60nm, be defined as the Br6 step.The antidote of such achromatopsia be red-light-sensing stimulus value function curve to the translation of long wave direction, every translation 10nm is corresponding to a step.That is, the peak value of correction curve respectively 640+10nm, 640+20nm ... 640+60nm, correspond respectively to Br1, Br2 ..., these six steps of Br6.

Based on above-mentioned definition, this utility model at first shows corresponding to the colour vision plates of different achromatopsia kinds by control unit control display discerns to determine the achromatopsia kind for the detected person.Described colour vision plates by the undistinguishable two kinds of colors of various achromatopsia respectively as background color and figure Colour composition.And then for the category-A achromatopsia, three primary colours proportioning, confession detected person that control unit control display changes colour vision plates quantitatively discern to determine the achromatopsia step.Then, preferably the achromatopsia correcting lens 303 that accesses corresponding step by control lens slewing disc 302 carries out the checking of rectification effect (achromatopsia step testing result), and leaves corrective prescription.For the category-B achromatopsia, then by the rotation of control lens slewing disc 302, the peak point side-play amount that accesses correction curve corresponds respectively to the achromatopsia correcting lens 303 of different steps, carries out the detection of achromatopsia step.

More particularly, color vision detector of the present utility model has been stored the hundreds of width of cloth colour vision plateses corresponding to different achromatopsia kinds in advance in the memorizer (not shown).This colour vision plates by the undistinguishable two kinds of colors of various achromatopsia respectively as background color and figure Colour composition.

The sign of various types of achromatopsia checking figure table is respectively: K _Ij, Ar _Ij, Ag _Ij,Ab _Ij, Br _Ij, Bg _Ij, Bb _Ij, be respectively applied for the inspection achromatopsia, two kinds of low Br, Bg, Bb class achromatopsia of Ar, Ag, Ab class achromatopsia and a kind of primary colours that primary colours are low.Wherein, the classification of i presentation graphic, for example i=1 is a numeral, and i=2 is a letter, and i=3 is animal (numeral, letter, animal can be used to check adult, student and child or illiteracy respectively), and j is the N width of cloth in the i kind figure.If the detected person can not discern inspection schedule, then be defined as the achromatopsia of corresponding kind.In addition, according to preferred embodiment, this utility model also comprises the chart O that is used to detect pseudo-achromatopsia _Ij

The more specific description of the inspection schedule of various types of achromatopsia is as follows:

(1) achromatopsia inspection schedule K _Ij: achromatopsia refers to the patient and has only lightness sensation, and R, G, three kinds of primary colours photoreceptor cells of B all lack does not have.Achromatopsia inspection schedule K _IjBy two kinds of primary colours of same brightness respectively as background color and figure Colour composition.If the detected person can not correctly discern inspection schedule K _Ij, then check result is an achromatopsia.

(2) chart O is looked in the false colour blind check _Ij: R, G, B tristimulus value that pseudo-achromatopsia refers to the detected person are all normal, and in other words, the detected person does not suffer from achromatopsia, but to pretend for certain purpose (for example escaping one's duty) be achromatopsia.In order to screen this situation, this utility model provides the false colour blind check to look into chart O _Ij, by two kinds of primary colours of two kinds of primary colours of same brightness and different lightness respectively as background color and figure Colour composition.If the detected person all can not correctly discern the two, then be judged as pseudo-achromatopsia, even because achroous patient also should be able to correctly discern for the chart of being made up of two kinds of primary colours of different lightness.According to this utility model, inspection schedule O _IjTeaching chart in the time of also can detecting beginning.

(3) two kinds of achromatopsia checking figure Table A r that primary colours are low _Ij, Ag _Ij, Ab _Ij: respectively by the undistinguishable two kinds of Colour compositions of such achromate.Inspection schedule with Ag class achromatopsia is an example, can with the digitized yellow (

) be background color, yellowish orange (

) be the figure colour, then Ag class achromate can not recognize.In like manner, can draw by similar approach for cyan, violet hue, that is, the colored and white balance of saturation is a background color with normal person's three primary colours proportioning all, and is figure with the colour that exceptional value is combined to form, and Ag class achromate can not be recognized.The detection chart of other two classes achromatopsia Ar, Ab also is to draw with same method.If the detected person can not correctly discern inspection schedule Ar _Ij, Ag _Ij, Ab _Ij, then check result is respectively Ar, Ag, Ab class achromatopsia.

(4) the low achromatopsia checking figure table Br of a kind of primary colours _Ij, Bg _Ij, Bb _Ij: similarly, respectively by the undistinguishable two kinds of Colour compositions of such achromatopsia.If the detected person can not correctly discern inspection schedule Br _Ij, Bg _Ij, Bb _Ij, then testing result is Br, Bg, Bb class achromatopsia.

For the category-A achromatopsia, when detecting the achromatopsia step, control unit receives the order by input equipment such as keyboard or mouse input, according to R, G, B correction value corresponding to each step R, G, the B three primary colours of colour vision plates is quantitatively changed, for detected person's identification.

With Ag class achromatopsia is example.If first group of correction value as input R, B, G

The time, the detected person can correctly discern chart, and then check result is the Ag1 achromatopsia.If when second group of correction value of input

The time, the detected person can correctly discern chart, and then check result is the Ag2 achromatopsia.And the like, can detect the different step achromatopsia of Ag3...Ag6.

Can detect the step of Ar class achromatopsia in a similar fashion.If first group of correction value as input R, G, B

The time, the detected person can correctly discern chart, and then check result is the Ar1 achromatopsia.If when second group of correction value of input The time, the detected person can correctly discern chart, and then check result is the Ar2 achromatopsia.And the like, can detect the different step achromatopsia of Ar3...Ar6.

Can detect the step of Ab class achromatopsia in a similar fashion.If first group of correction value as input B, R, G

The time, the detected person can correctly discern chart, and then check result is the Ab1 achromatopsia.If when second group of correction value of input

The time, the detected person can correctly discern chart, and then check result is the Ar2 achromatopsia.And the like, can detect the different step achromatopsia of Ab3...Ab6.

For Br class achromatopsia, to rotate by control lens slewing disc 302, the peak point side-play amount that accesses correction curve corresponds respectively to the achromatopsia correcting lens 303 of different steps, carries out the detection of achromatopsia step.If at correction value is that the detected person can correctly discern colour vision plates under the situation of the achromatopsia correcting lens of long wave skew 10nm, then check result is the Br1 achromatopsia.If at correction value is that the detected person can correctly discern colour vision plates under the situation of the achromatopsia correcting lens of long wave skew 20nm, then check result is the Br2 achromatopsia.And the like, can detect the different step achromatopsia of Br3...Br6.

Carry out the method that colour vision detects below with reference to the flow chart description utilization among Fig. 5 according to color vision detector of the present utility model.

In step 501, detecting operation begins.The doctor can pass through input equipment such as keyboard or mouse (not shown) and import information such as detected persons' name, sex, age, telephone number, family disease history.In addition, the doctor can select suitable inspection schedule according to detected person's identity.For example, can select to use alphabetical figure to detect for the student.

In step 503, control device 201 start detection systems show colour vision plates synchronously on the screen of two display 202b and 202a, monitor for detected person's identification with for the doctor respectively.According to preferred embodiment of the present utility model, can change a width of cloth chart per 5 seconds automatically.Its order can be looked into chart O for the false colour blind check _Ij(also as teaching figure), achromatopsia inspection schedule K _Ij, and the inspection schedule Ar of other various achromatopsia _Ij, Ag _Ij, Ab _Ij, Br _Ij, Bg _Ij, Bb _IjBut it will be understood by those skilled in the art that this utility model is not limited thereto, but also can adopt other orders to show colour vision plates automatically, perhaps manually select to show colour vision plates by the doctor.As shown in Figure 6, colour vision plates is made up of as background color 601 and figure colored 602 respectively the undistinguishable two kinds of colors of various achromatopsia, discerns to determine the achromatopsia kind for the detected person.When the detected person correctly discerned chart, the doctor can press "-" key that is arranged on the keyboard, and can not discern or identification error Shi doctor can press "+" key as the detected person.

Step 505-511 is for determining the step of achromatopsia kind to the identification situation of colour vision plates according to the detected person.As described above, whether the detected person has correctly discerned the button input "-" and "+" that inspection schedule corresponds respectively to the doctor.In step 505, judge whether the detected person has correctly discerned all charts (that is, for all charts, the input of doctor's button is "-").When judged result is "Yes", is defined as colour vision normal (step 506), and in step 529, prints the normal audit report of colour vision.When the judged result of step 505 is "No" when (that is, comprising "+" in the input of doctor's button), judge in step 507 then whether the detected person has correctly discerned the false colour blind check and looked into chart.When judged result is "No", is defined as pseudo-achromatopsia (step 508), and in step 529, prints the audit report of pseudo-achromatopsia.When the judged result of step 507 is "Yes", judge in step 509 then whether the detected person has correctly discerned the achromatopsia inspection schedule.When judged result is "No", is defined as achromatopsia (step 510), and in step 529, prints achroous audit report.When the judged result of step 509 is "Yes", then further in step 511 according to corresponding inspection schedule Ar _Ij, Ag _Ij, Ab _Ij, Br _Ij, Bg _Ij, Bb _IjThe identification situation determine the kind of the achromatopsia that two kinds of low and a kind of primary colours of primary colours are low.Those skilled in the art will appreciate that in the process of the blind kind of above-mentioned fixation really, can adopt the meansigma methods of detected person, when this meansigma methods is higher than predetermined threshold, be judged as the achromatopsia of a certain kind for the recognition result of several inspection schedules.

According to preferred embodiment of the present utility model, if the judged result in step 511 is not, promptly detect Ar, Ag or Ab class achromatopsia, the three primary colours proportioning that then changes corresponding colour vision plates in step 513 quantitatively is for detected person's identification, thus the detection of startup achromatopsia step.Particularly, as shown in Figure 7, the doctor can be by input equipment, for example mouse, click the step selector button 703 on the display 202a screen, the achromatopsia kind of determining in step 511 (situation shown in Fig. 7 is an Ag class achromatopsia) is selected the three primary colours correction value corresponding to the 1st step to the 6 steps successively, and the three primary colours proportioning of colour vision plates correspondingly changes according to this correction value.

When first group of correction value in step 513, selecting input R, B, G by input equipment

The time, if the detected person can correctly discern chart (in the step 515 for being), then be defined as Ag1 achromatopsia (step 517).If can not correctly discern the chart (being not in the step 515) of this first step, then return step 513, select second group of correction value of input by input equipment In this case, if the detected person can correctly discern chart (in the step 515 for being), then be defined as Ag2 achromatopsia (step 517).And the like, can detect the different step achromatopsia of Ag3...Ag6.

After determining the achromatopsia step in a manner described,, start rectification effect checking wheel disc 300 in step 519, to carry out the checking of rectification effect (achromatopsia step testing result) according to preferred embodiment of the present utility model.As previously described, lens slewing disc 302 is provided with a plurality of achromatopsia correcting lenses 303 corresponding to different achromatopsia kinds and step.Described achromatopsia correcting lens 303 is based on the pairing achromatopsia of the three primary colours correction value that calculates according to the three primary colours exceptional value and corrects the curve of spectrum, is that Design and Machining forms by known film.By pressing the button 101 on the front panel that is arranged on housing 100, can control motor 304 and drive lens slewing disc 302 rotations, make and aim at lens barrel 305 with achromatopsia kind and the corresponding achromatopsia correcting lens 303 of step in step 517, determined.The detected person can be by lens barrel 305 and then by the inspection schedule on the achromatopsia correcting lens 303 observation display 202b.16 achromatopsia correcting lenses 303 have been shown among Fig. 3.In 16 LED lights 102 on the front panel that is arranged on housing 100 shown in Fig. 1 each corresponds respectively to an eyeglass 303.When certain eyeglass 303 rotated to the position of aiming at lens barrel 305, corresponding display lamp 102 was lighted, and can locate and indicate selected eyeglass exactly thus.The number that it will be understood by those skilled in the art that on the lens slewing disc 302 display lamp of installing on the number of the eyeglass of installing and the front panel 102 is not limited to 16, but also can adopt other suitable numbers.

In step 519,, then further confirm the achromatopsia kind in the step 517 and the testing result of step if the detected person can correctly discern all colour vision plateses by achromatopsia correcting lens 303.Then, in step 529, print achromatopsia kind and step and corresponding corrective prescription.Testing process finishes in step 531.

On the other hand, if in the judged result of step 511 for being, promptly detected is not category-A but category-B achromatopsia (only having found Br class achromatopsia at present) then starts rectification effect checking wheel disc 300 in step 521.Particularly, when in step 523, accessing correction value for the time, can correctly discern colour vision plates (in the step 525 for being), then be defined as Br1 achromatopsia (step 527) if the detected person sees through this eyeglass to the achromatopsia correcting lens 303 of long wave skew 10nm.Can not correctly discern colour vision plates (being not in the step 525) if the detected person sees through this eyeglass, then return step 523, continue to access correction value and be achromatopsia correcting lens 303 to long wave skew 20nm.In this case, can correctly discern chart (in the step 525 for being), then be defined as Br2 achromatopsia (step 527) if the detected person sees through this eyeglass.And the like, can detect the different step achromatopsia of Br3...Br6.Then, in step 529, print achromatopsia kind and step and corresponding corrective prescription.Testing process finishes in step 531.

Color vision detector of the present utility model has below been described in conjunction with the preferred embodiments.Wherein, with human colour vision colourful digital, digital definition by achromatopsia kind and step is checked out pseudo-achromatopsia, achromatopsia apace, two kinds of low Br, Bg, Bb achromatopsia and steps thereof of Ar, Ag, Ab achromatopsia and a kind of primary colours that primary colours are low, and verify the achromatopsia rectification effect and print testing result and corrective prescription.According to this utility model,, can make the detected person when detecting, not be subjected to external interference by adopting two synchronization indicators.According to color vision detector of the present utility model can donor inspection station, hospital use when carrying out examination of color sense and optician's shop preparation achromatopsia-correcting glasses.

Embodiment in the description only is schematic and nonrestrictive.Those skilled in the art can make various modifications under the situation that does not depart from spirit and scope of the present utility model.Protection domain of the present utility model is only limited by the accompanying Claim book.

Claims (8)

1, a kind of color vision detector comprises housing,

It is characterized in that this color vision detector also comprises:

Be arranged on the intravital display of described shell; And

Control device, be arranged in the described housing and be coupled to described display, be used to control the colour vision plates of described display demonstration corresponding to different achromatopsia kinds, discern to determine the achromatopsia kind for the detected person, and be used to control the three primary colours proportioning that described display changes colour vision plates quantitatively, discern to determine the achromatopsia step for the detected person.

2, color vision detector according to claim 1 is characterized in that, described colour vision plates by the undistinguishable two kinds of colors of various achromatopsia respectively as background color and figure Colour composition.

3, color vision detector according to claim 1 is characterized in that, described different achromatopsia kinds comprise:

(1) R, G, B three primary colours all lack the achromatopsia of not having;

(2) two kinds of category-A achromatopsia that primary colours are low comprise:

Ar class achromatopsia: R〉G〉B, promptly two kinds of primary colours of G, B are low,

Ag class achromatopsia: G〉B〉R, promptly two kinds of primary colours of B, R are low,

Ab class achromatopsia: B〉R〉G, promptly two kinds of primary colours of R, G are low;

(3) the low category-B achromatopsia of a kind of primary colours comprises:

Br class achromatopsia: R＜G=B, promptly R primary colours are low,

Bg class achromatopsia: G＜B=R, promptly G primary colours are low,

Bb class achromatopsia: B＜G=R, promptly B primary colours are low.

4, color vision detector according to claim 3 is characterized in that, the specified data of the different steps of described specific achromatopsia kind is:

(1) specified data of Ar class achromatopsia step: R, G, B exceptional value are respectively

R, G, B correction value are respectively

Correspond respectively to Ar1, Ar2 ..., these six steps of Ar6;

(2) specified data of Ag class achromatopsia step: R, B, G exceptional value are respectively

R, B, G correction value are respectively

Correspond respectively to Ag1, Ag2 ..., these six steps of Ag6;

(3) specified data of Ab class achromatopsia step: B, R, G exceptional value are respectively

B, R, G correction value are respectively

Correspond respectively to Ab1, Ab2 ..., these six steps of Ab6;

(4) specified data of Br class achromatopsia step: the peak point of retina red cone cells photostimulation value function curve is offset 10nm to 60nm to shortwave, when skew 10nm is the Br1 step, when skew 20nm is the Br2 step, ..., when skew is the Br6 step during 60nm, the peak point that correction value is respectively red-light-sensing stimulus value function curve to the skew of long wave direction 10nm, 20nm ..., 60nm.

5, color vision detector according to claim 1 is characterized in that, this color vision detector comprises two described display, lays respectively at the front and rear of described housing, is used for synchronously showing described colour vision plates.

6, color vision detector according to claim 1, it is characterized in that, also comprise the eyes loophole that is arranged on the described housing, and the achromatopsia rectification effect checking wheel disc that is installed in described loophole inboard, this wheel disc is provided with a plurality of achromatopsia correcting lenses, and described achromatopsia correcting lens is based on the pairing achromatopsia of the three primary colours correction value that calculates according to the three primary colours exceptional value and corrects the curve of spectrum, is that Design and Machining forms by film.

7, color vision detector according to claim 1 is characterized in that, also comprises printer module, is used for printed colors blind Detecting result and corrective prescription.

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