JPH0938034A - Color vision test table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to select only a color anomal-person to require consideration, by providing first and second rows to overlap color vision test slips at a crossing part. SOLUTION: On the surface of square formed color vision test table 1, a first row comprising square test color slips 2 with colors (a), (b), and (c) and a second row with colors. Those square color slips 2, for instance five, are positioned at prescribed intervals to cross those two rows. Colors among the five test color slips are not necessarily with the same brightness and saturation but similar color in the meaning of almost the same hue. Colors (d), (b), and (e) are with different hues and not similar to each other but confusing colors easily confusing a color anomal-person. Each of brightness of similar colors (d), (b), and (e) is adjusted in a tendency rather the same as each other comparing to that of (a), (b), and (c) but not required to be set strictly. Each saturation of colors (a), (b), (c), (d), and (e) is also not required to be set strictly, but low saturation is preferably to be avoided.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a color vision test table.

[0002]

2. Description of the Related Art Since objects around us in daily life are often identified by their colors, various color vision inspection methods for examining the ability to identify colors have been considered. As one type of color vision inspection method, there is a method of using a color vision inspection table in which numbers or mosaics are drawn in colors that are easily confused by color blind persons. The color vision test method using this color vision test table is adopted as a color vision test method for children at school because it can easily perform a color vision test in a short time. As a color vision test table for school children's color vision test, the Ishihara color vision abnormality test table is used. The Ishihara-type color vision deficiency test table is highly accurate and excellent, and it is possible to select a person who has a slight color vision deficiency.

[0003]

The Ishihara-type color vision deficiency inspection table is an excellent inspection table with high accuracy, but has the following problems. Since it selects a person who has a slight color vision deficiency, it also selects a person who can carry out daily life without feeling much inconvenience. Therefore, the person himself / herself determines that he / she has a color vision deficiency even though he / she does not feel inconvenience in his / her daily life, and cannot distinguish only a color vision deficiency person who needs consideration in learning at school, for example. The Ishihara-type color vision deficiency test table was created for men because it was created for recruitment inspection. Therefore, it is suitable for testing color vision abnormalities in boys (for example,
The percentage of normal persons who were judged to be suspected of having color blindness by the Ishihara color blindness test table was 4%), and it is not suitable for testing color blindness in girls (for example,
The percentage of normal persons among those who were determined to be suspected of having color blindness by the Ishihara-type color vision deficiency test table was 48%).
Therefore, an object of the present invention is to provide a color vision test table that can screen only color vision deficient persons who need consideration.

[0004]

In order to achieve the above object, the first invention comprises three or more inspection color chips,
A first row and a second row are provided so that the inspection color charts at the intersections overlap so that the colors of the inspection color charts at the intersections are on one side of the confusion color zone in the Munsell color space. The color of the inspection color chart other than the inspection color chart of the intersection of the first row is similar to the color of the inspection color chart of the intersection from one side of the confusion color zone. Select a color, then the second
The color of the inspection color chart other than the inspection color chart of the intersection in the row is selected from the other side of the confusion color zone by selecting a color confused with the color of the inspection color chart of the intersection. Make up. The second invention is the first invention, wherein the first row and the second row are formed by arranging three square inspection color chips of the same size at equal intervals, and The inspection color chips are arranged so that the row and the second row are cross-shaped. In the first invention and the second invention, the first row and the second row formed by three or more inspection color charts are provided so as to intersect with each other, and the color of the inspection color chart of the first row is a similar color. Since the color of the inspection color chart in the second row is a confusion color, it is possible to select a person with color vision deficiency who needs consideration by the similarity judgment, and a person with color vision deficiency who needs attention Colors that are easily confused can be identified.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a color vision test table of the present invention will be described below. FIG. 1 shows an embodiment of a color vision test table of the present invention. In FIG. 1, the color vision test table 1 is
It is formed in a square (for example, 15 cm × 15 cm). On the surface of the color vision test table 1, a square (for example, 16 mm
5 inspection color chips 2 of × 16 mm) are arranged at predetermined intervals (for example, 5
mm), the first consisting of inspection color chips of colors [a, b, c]
And a second row of inspection color chips of colors [d, b, e] are arranged so as to form a cross. The first row and the second row may be either vertical or horizontal on the color vision test table 1. Of the five inspection color charts, the colors [a, b, c] are not necessarily the same in lightness and saturation, but are similar colors in the sense that they are almost the same hue, and the colors [d, b, e] Are non-similar colors with different hues, but are easily confused by color blind persons. However, regarding the color vision test table for practice,
The colors [d, b, e] should not be confused with color blind persons. The brightness of the mixed colors [d, b, e] is similar to the similar colors [a, b,
Aligning to tend to be the same as each other than in c],
It is not necessary to set it strictly. In addition, [a, b, c, d,
It is not necessary to strictly determine the color saturation of e],
You should avoid low saturation.

Next, the colors [a, b, c, d,
The method of selecting e] will be described. In order to explain the method of selecting the colors [a, b, c, d, e] using the Munsell color method, the Munsell color method will be described using the Munsell color space shown in FIG. A circle on the xy plane is divided into 10 hues by a line connecting a center O and a point on the circumference, and each hue is further divided into 10 reds (R) having 10 hues 1 to 10, respectively. Red purple (RP), purple (P), purple blue (PB),
A hue circle of blue (B), blue green (BG), green (G), green yellow (GY), yellow (Y), and yellow red (YR) is formed. And 1
The hue in the circumferential direction (Hue: Abbreviation H) is represented by -10 and the hue name, and the saturation (Ch) is represented by the value r in the radial direction of the circle.
Roma: Abbreviation C), and the lightness (Value: Abbreviation V) is represented by the coordinate of the circle in the z direction. For example, 5R4 /
14, the hue H is 5R (angle θ on the xy plane), the lightness V is 4 (distance in the z direction), and the saturation C is 14 (x
Represents the color r) from the center O on the -y plane.

On the xy plane of the Munsell color space, as shown in FIG. 3, there are three confusion color zones of the first abnormality (P) (red blind), that is, the center of the circle. A confusion color zone 1 passing through and a confusion color zone 2 and a confusion color zone 3 on both sides of the confusion color zone 1 are drawn. Then, the color b is selected from one side of the confusion color zone 1. Then color b
Colors a and c that are similar to the color b are selected from the same side as the side that selected. In this case, the colors a and c do not have to have the same lightness and saturation as the color b. Furthermore, colors d and e that are easily confused with color b are selected from the side that did not select color b. In this case, the lightness of the mixed colors [d, b, e] tends to be the same as that of the similar colors [a, b, c]. After selecting one set of color combinations for the confusion color zone 1, this time, the color b is selected from the other side of the confusion color zone 1, and the color b is selected from the same side as the side where the color b is selected. While selecting colors a and c that are similar to
From the side where the color b is not selected, the colors d and e which are easily confused with the color b are selected. The two sets of color combinations for one mixed color zone as described above are also performed for the mixed color zone 2 and the mixed color zone 3, and a total of 6 color combinations (color vision inspection table P1 ~ P6) is selected. Select a similar color combination, and select the second abnormality (D).
The confusion color zone of (green-blind) was also performed, and a total of 6 color combinations (color vision test tables D1 to D) were also used for the second abnormality.
Select 6). To this, a combination of colors selected and added from Zone 3 of the first abnormality (color vision test table P7) and a combination of colors for practice that is not confused with color blind persons (color vision test table for practice EX) are added. In addition, a total of 14 color combinations were selected. Colors [a, b, c, d, e] of the color vision test tables P1 to P7, D1 to D6 and the practice color vision test table EX
FIG. 18 is a diagram showing the combination of Nos. 1 and 2 using the Munsell value (HV / C). Then, the color vision inspection table P1
P7, D1 to D6 and the combination of colors [a, b, c, d, e] in the color vision test table EX for practice are set to Munsell's H /
The C coordinates are shown in FIGS. Note that the color vision test table of the present invention has a considerably large tolerance in hue, lightness, and saturation, and in consideration of availability, etc., on the H / C coordinates shown in FIGS. 4 to 17. Color [a, b,
c, d, e] are “clear values” close to the Munsell values shown in the chart of FIG. 18, so the H / C coordinates of the colors [a, b, c, d, e] shown in FIGS. And the Munsell values of the colors [a, b, c, d, e] shown in the chart of FIG. 18 do not match. The confusion color zone of the first anomaly and the confusion color zone of the second anomaly and the homologous colors and confusion colors in each zone are determined based on experience and the like, and a color vision inspection table and The color combinations of the practice color vision test table are not limited to the color combinations of the color vision test tables P1 to P7, D1 to D6 and the practice color vision test table EX, and various combinations are possible.

A method of using the color vision inspection slip prepared as described above will be described below. The conditions for the color vision test are:
In an ordinary bright room, perform an inspection 60 cm away from the subject. And, "I'm going to test the colors from now on. The colors are lined up vertically and horizontally here. Red has red, green has green, blue has blue, and so on. If there is a color of the same companion on both sides, say <horizontal>, and if it is above or below, say <vertical>.
<Neither><Wakaranai> will do. Hi, let's practice a little. First, the practice color vision test table EX is presented to the subject. After practicing with the practice color vision test table EX, the color vision test tables P1 to P7, D
Present 1 to D6 to the subject. The color vision test table may be used in any orientation, vertical or horizontal. Further, the order of presenting the color vision test table may be arbitrary. If the confusion color in the presented color vision test table is answered as "Nakama", it is determined as "wrong answer". It is expected that students who have such confusion as "nakama" will have difficulty distinguishing the colors they encounter in school education such as textbooks and blackboards. Therefore, what kind of color cannot be discriminated based on the colors forming the color vision test table determined as "wrong answer" and the color vision test table that can be correctly identified, and what is the distinguishable color, Consider the combination of colors used as teaching materials.

Inspection by panel D15 (one of hue array inspections in which some colors are slightly different and are arranged in a similar order) for a person who is determined to be color blind in the Ishihara type color vision abnormality inspection table The color vision test tables P1 to P7, D1 to 326 persons (71 persons with the first abnormality P and 255 persons with the second abnormality D) who were determined to have color blindness by the inspection of the panel D15. A color vision test was performed using D6. FIG. 19 is a table showing the error rate of each color vision test table calculated based on this determination result. Also, FIG.
It is a chart showing a result of the factor analysis by the varimax method. In FIG. 20, factor 1 is the first abnormal P
The factor 2, the factor 2 is the component of the second anomaly D, and the factor 3 is a component not related to any of them. It is estimated that the larger the positive value of the factor 1, the closer it is to P, and the larger the positive value of the factor 2, the larger It is estimated to be close to D. When performing a color vision test using the color vision test table of the present invention, the color vision test table P1 is used.
~ P7, you may use all 13 D1 ~ D6,
Since it is a little too much and is also redundant, a small number of optimum color vision test tables may be selected for the color vision test. As a small number of optimum color vision inspection tables, from FIG. 19 and FIG. 20, for example, one sheet of P7, two sheets of P1 and D4, P2 and D
4 sheets, 2 sheets of P7 and D5, P1, P7 and D
4 three, P2, P7 and D4 three, P1, P4,
D3 and D6 four, P1, P7, D4 and D6 four, P2, P7, D2 and D4 four, P2, P
7, D4 and D5, P4, P7, D4 and D
6 sheets, 5 sheets of P1, P4, D3, D5 and D6, etc. can be selected. P1, P for the 326 people
The chart of FIG. 21 shows the relationship between the number of incorrect answers when four sheets, D4 and D6, and the number of incorrect answers when all 13 sheets are used. From the above results, the effectiveness of the color vision test table of the present invention was confirmed.

In the above-described embodiment, the shape of the color vision inspection sheet 1 is square, but the shape of the color vision inspection sheet 1 can be variously changed, such as circular and rectangular. In addition, inspection color chart 2
However, the shape of the inspection color chart 2 can be changed into various shapes such as a circle other than a square. The size of the inspection color chart 2 may be any size, and the size of each inspection color chart 2 may be different. Further, although the row is formed by the three inspection color chips 2, the number of the inspection color chips 2 forming the row may be any number as long as it is three or more. Further, although the inspection color chart 2 is arranged so that the first row and the second row form a cross, the inspection color chart 2 may be arranged so that the first row and the second row intersect. Good.

[0011]

[Effects of the Invention] When a color vision test is performed using the color vision test table of the present invention, it is possible to carry out daily life without feeling inconvenience among color blind persons who have been determined to have color blindness in the Ishihara color blindness test table. Those who are capable of color blindness are not judged to be color blind, and only those who need attention should be judged to be color blind. In addition, because it is possible to distinguish colors that are easily confused by people with color vision deficiencies that require consideration based on the color vision test table, other people with color vision deficiencies that need consideration should be given attention to the colors used in the teaching materials. Can be treated like any other person.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a color vision test table of the present invention.

FIG. 2 is a diagram showing a Munsell color space.

FIG. 3 is a diagram illustrating a method of selecting a color of a color vision test table from a Munsell color space.

FIG. 4 is a diagram showing colors of a color vision test table P1 in Munsell H / C coordinates.

FIG. 5 is a diagram showing colors of a color vision test table P2 in Munsell H / C coordinates.

FIG. 6 is a diagram showing colors of a color vision test table P3 in H / C coordinates of Munsell.

FIG. 7 is a diagram showing colors of a color vision test table P4 in Munsell H / C coordinates.

FIG. 8 is a diagram showing colors of a color vision inspection table P5 in Munsell H / C coordinates.

FIG. 9 is a diagram showing colors of a color vision inspection table P6 in Munsell H / C coordinates.

FIG. 10 is a diagram showing colors of a color vision test table P7 in Munsell H / C coordinates.

FIG. 11 is a diagram showing colors of a color vision test table D1 in Munsell H / C coordinates.

FIG. 12 is a diagram showing colors of a color vision test table D2 in Munsell H / C coordinates.

FIG. 13 is a diagram showing colors of a color vision test table D3 in Munsell H / C coordinates.

FIG. 14 is a diagram showing colors of a color vision test table D4 in Munsell H / C coordinates.

FIG. 15 is a diagram showing colors of a color vision test table D5 in Munsell H / C coordinates.

FIG. 16 is a diagram showing colors of a color vision test table D6 in Munsell H / C coordinates.

FIG. 17: The color of the practice color vision test table EX is Munsell's H
It is a figure shown by / C coordinates.

FIG. 18 is a chart showing colors of each color vision test chart using Munsell values.

FIG. 19 is a chart showing a wrong answer rate of each color vision test table when a color vision test is performed using the color vision test table for the first abnormal person and the second abnormal person.

FIG. 20 is a table showing the results of factor analysis of the error rate of each color vision test table by the varimax method.

FIG. 21 is a table showing the relationship between the number of wrong answers when all 13 sheets are used and the number of wrong answers when only four sheets are used.

[Explanation of symbols]

 1; color vision inspection table 2; inspection color chart

Claims (2)

[Claims] 1. A first row and a second row which are formed by three or more inspection color charts and which intersect so that the inspection color charts at the intersections overlap each other. The color is selected from one side of the confusion color zone in the Munsell color space, and the color of the inspection color chart other than the inspection color chart of the intersection of the first row is one of the confusion color zones. From the side, the color of the inspection color chart similar to the inspection color chart of the intersection is selected, and the color of the inspection color chart other than the inspection color chart of the intersection of the second row is the other one of the confusion color zones. A color vision inspection table, in which a color confused with the color of the inspection color chart at the intersection is selected from the side. 2. The color vision test table according to claim 1, wherein
The first row and the second row are formed by arranging three square inspection color chips of the same size at equal intervals, and
The color vision inspection table, in which the inspection color chips are arranged so that the column and the second column form a cross.