KR101663156B1 - Apparatus for visual stress test - Google Patents

Abstract

The present invention relates to a digital visual stress test method, a recording medium storing a program for implementing the method, and a computer program stored in a medium for implementing the same. More specifically, And a digital visual stress test method capable of improving a user's reading ability and reducing a visual stress based on the result of discriminating the degree of visual stress using an overlap sample and a program for implementing the same And a computer program stored in the medium for implementing the recording medium.

Description

[0001] APPARATUS FOR VISUAL STRESS TEST [0002]

The present invention relates to a visual stress testing apparatus, and more particularly, to a visual stress testing apparatus capable of providing a solution that can enhance a user's reading ability and lower visual stress by illuminating a light directly with a read sample using an LED illumination And a visual stress test apparatus.

The term visual stress depends on the person's perspective. From an ophthalmologic point of view, it appears as a result of incomplete function of the visual system and it is possible to correct it sufficiently. However, visual stress also occurs in people with normal visual function, and is closely related to photophobia and photosensitivity syndrome. Symptoms and signs of visual stress can be found in response to certain visual images, geometric patterns of lines.

Visual stress occurs when the brain is overloaded with a specific image and neurons in the cerebral cortex are stimulated too strongly to stimulate other cells inappropriately. Characters can also be viewed as geometric patterns of lines, which can lead to visual stress when reading text in books, computers, cell phones, and, in severe cases, migraine headaches or reading difficulties.

Visual stress causes migraine, dizziness, decreased reading ability, and is known to occur in 5 ~ 20% of the total population depending on severity of symptoms.

Screening for visual stress can be used as a screening test for visual dyslexia, but it can not be judged that there is visual stress or visual dyslexia. Visual dyslexia has symptoms called photosensitivity syndrome.

The visual dyslexia screening test is widely known as the Wilkins Reading Rate Test in the UK and the screening test of the irlen in the United States. The common features of the two tests are: first, using color; second, using the speed and error of reading text; and third, asking about symptoms related to visual defects and referencing the response to the screening process. However, children who have been asked questions during the questioning process may be misleading and may receive unreliable answers. Children also tend to think the symptoms are normal. In the United States, irlen said that if there are three or more symptoms of the questionnaire, the person is suspected to have a type of visual stress, photsensitive syndrome.

Such screening tests for visual stresses can measure visual stress but can not provide a solution to solve them.

Korean Patent No. 10-0990000 discloses a method and apparatus for providing a color overlay that alleviates visual stress.

Korea registered patent [10-0990000] (Registered on October 19, 2010)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a visual stress test apparatus capable of improving a user's reading ability and providing a solution for lowering visual stress .

The objects of the embodiments of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description .

According to an aspect of the present invention, there is provided a visual stress testing apparatus including: a housing having a space formed therein and having an observation hole through which a predetermined area of one side is penetrated; An RGB illumination unit 200 provided in the housing 100 for emitting RGB color light; A sample mounting part 300 provided inside the housing 100 in the other direction of the observation hole 110 and capable of mounting a read sample; And an RGB illumination controller 250 for controlling an illumination color of the RGB illumination unit 200.

In addition, the housing 100 may include an opening / closing door 120 that can be opened / closed in a direction toward the other side of the observation hole 110 of the housing 100.

The housing 100 may further include a slidable sliding part 130 of the sample mounting part 300 so that the sample mounting part 300 can be inserted into and removed from the housing 100 .

In addition, the visual stress testing apparatus includes a solar light source unit 400 that emits light from the other side of the observation hole 110 to the sample mounting unit 300, inside the housing 100; And a solar light source control unit 450 for controlling the brightness of the solar light source unit 400.

The visual stress test apparatus according to an embodiment of the present invention has an effect of detecting a color of illumination that can minimize a user's visual stress.

In addition, the reading sample can be easily replaced by the opening / closing door portion or the sliding portion.

In addition, there is an effect that the color of sunglasses that can minimize visual stress can be found by using the solar light source unit and the solar light source control unit.

Also, based on the result of using the digital visual stress test apparatus, there is an effect that the visual stress test on the illumination color can be rapidly performed.

In addition, there is an effect that the reliability of the reading test can be enhanced by performing the color tone test in parallel.

1 is a perspective view of a visual stress testing apparatus according to an embodiment of the present invention;
2 is an exemplary view showing a cross section taken along the line A-A 'in FIG. 1;
Fig. 3 is an exemplary view showing a state when the opening and closing door portion of Fig. 2 is opened. Fig.
4 is a perspective view of a visual stress testing apparatus according to an embodiment of the present invention;
Fig. 5 is an exemplary view showing the cross section of Fig. 4; Fig.
6 is a perspective view of a visual stress test apparatus according to another embodiment of the present invention.
7 is an exemplary view of a screen showing six samples out of 12 overlap samples;
8 is an exemplary view of a screen showing six samples except for the sample shown in Fig. 7 among the 12 overlap samples. Fig.
Fig. 9 is an exemplary view showing a screen in which a read sample in black text on a white background and a screen in which a final selected color overlaps the screen in half.
10 is an exemplary diagram showing an intermediate progress result of the color tone inspection step.
11 is an exemplary view showing a result of color tone inspection.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Further, it is to be understood that, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Descriptions of known functions and configurations that may be unnecessarily blurred are omitted. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible.

FIG. 1 is a perspective view of a visual stress testing apparatus according to an embodiment of the present invention, FIG. 2 is an exemplary view showing a cross section taken along the line A-A 'in FIG. 1, FIG. 3 is a cross- 4 is a perspective view of a visual stress testing apparatus according to an embodiment of the present invention, FIG. 5 is an exemplary view showing a cross section of FIG. 4, and FIG. 6 is a perspective view of a visual stress according to another embodiment of the present invention 7 is a view showing a screen showing six samples out of the 12 overlap samples, and FIG. 8 is an example of a screen showing six samples except for the sample shown in FIG. 7 out of the 12 overlap samples FIG. 9 is an exemplary view showing a screen in which a read sample in black text on a white background and a screen in which a final selected color overlaps the screen in half, FIG. 10 shows an intermediate progress result of the color hue inspection step FIG. 11 is an exemplary view showing the results of the color vision inspection. FIG.

1 to 6, a visual stress testing apparatus according to an exemplary embodiment of the present invention includes a housing 100, an RGB illumination unit 200, a sample mounting unit 300, and an RGB illumination control unit 250 do.

The housing 100 has a space formed therein and an observation hole 110 through which a certain area of one side is penetrated.

The housing 100 is provided with an observation port 110 for mounting a reading sample inside the housing 100 and allowing the reading sample to be viewed from the outside, It is preferable that it is blocked so as not to be seen. This is to ensure that the reading is not focused on the environment other than the reading sample.

1 to 3, the housing 100 may include an opening / closing door 120 that can be opened and closed in a direction toward the other side of the observation opening 110 of the housing 100.

This is to allow a user to easily work when a work is required inside the housing, for example, by mounting a read sample in the housing. At this time, the sample mounting part 300 may be brought into close contact with the opening / closing door part 120. In this case, when the opening / closing door part 120 is opened, the sample mounting part 300 is moved together. For example, when one side of the opening / closing door unit 120 is hinged to be rotatable, when the opening / closing door unit 120 is rotated 270 degrees around the hinge, The side surface is exposed to the outside and an operation of attaching or fixing a read sample to the sample mounting part 300 attached to the inside surface of the opening and closing door part 120 can be easily performed.

4 to 5, the housing 100 includes a slidable sliding portion 130 of the sample mounting portion 300 so that the sample mounting portion 300 can be inserted into and removed from the housing 100 ).

A portion of the outer surface of the housing in the rail direction of the sliding part 130 may be inserted into the sample mounting part 130 so that the sample mounting part 300 can be inserted and withdrawn using the sliding part 130. [ It is preferable to have grooves 135 penetrating similarly to the side surface.

The RGB illumination unit 200 is provided inside the housing 100 and emits RGB color light.

That is, the RGB illumination unit 200 emits RGB color light according to the RBG signal input from the outside.

The RGB illumination unit 200 may be provided in the form of a module in which a plurality of LED lamps are connected, and a plurality of LED modules may be provided.

In addition, the RGB illumination unit 200 may be installed in the housing 100 so as to be installed at a predetermined position. This is to make it usable even when the position or angle of the illumination should be changed according to the situation. For example, it may be necessary to emit light from the front or rear surface of the sample holder 300 according to circumstances. In addition, although each LED module can emit light of the same RGB color, it is also possible to emit light of different RGB colors.

This is because, when a read sample is placed to perform a reading test, the RGB sample should emit light in the front of the sample to minimize the visual stress of the user, and a tracing paper is used to select a color of a lens such as glasses or sunglasses Since it is necessary to emit light of RGB color similar to sunlight at the rear surface of the tracing paper, it is preferable to use it in various situations.

I used the tracing paper as an example, but acrylic. Of course, all materials that can transmit light, such as glass materials, are of course usable.

The sample holder 300 is provided inside the housing 100 in the other direction of the observation hole 110 and can mount a read sample.

That is, the sample holder 300 is used to fix a read sample (a letter, a figure, a pattern, and the like) and corresponds to a portion for fixing a read sample.

The sample holder 300 may be provided on the wall surface in the other direction of the observation hole or may be spaced apart from the wall surface in the other direction of the observation hole.

The RGB illumination control unit 250 controls the illumination color of the RGB illumination unit 200.

At this time, the RGB illumination controller 250 can control the illumination color of the RGB illumination unit 200 according to the read inspection result received from the outside.

This is for applying a color determined to be the optimal illumination color to the user in accordance with the result of visual stress test (reading test, etc.) and color vision test.

A visual stress test and a color vision test can be performed using a smart device, a mobile device, a tablet, a computer, etc., and the results of the visual stress test and the color vision test can be transmitted to the visual stress test apparatus according to an embodiment of the present invention. (See Fig. 2)

The visual stress test can be carried out as follows.

As shown in FIGS. 7 to 8, a certain number of overlap samples among a plurality of overlap samples in which different color filters are overlapped on a black sample of a read sample on a white background are displayed to a user.

The read sample is in black on the background of the sample, and the overlap sample is a sample showing the effect of applying the color filter to the read sample. That is, the overlapped sample refers to a sample that is displayed when a cardboard or the like is put on a read sample. It should be noted that this does not change the background color. This is because it is necessary for the user to discriminate the most comfortable form when applying the color-applied glasses or illumination, and to overlap not only the background but also the text.

The overlap sample is not intended to be used in a test such as a user directly reading from beginning to end or searching for a specific word, and is provided to intuitively select an overlap sample that a user can read easily among a plurality of overlap samples. This is because it takes a long time to read the overlapped sample and it is possible to reduce the reading speed of the test result due to the accumulated fatigue during the long time, It is provided to finish the inspection by selecting the overlapped sample that feels the easiest of the sample. At this time, it is preferable to use an overlap sample in which 12 or more color filters overlap.

As shown in FIGS. 7 to 8, the process of selecting the overlapped sample that is most clear and comfortable for the user is repeated to find the final overlap color.

FIG. 6 shows six samples of 12 overlap samples first, of which AP636 colors are selected. FIG. 7 shows the remaining six samples, of which AQ640 colors are selected . That is, the color selected in Fig. 6 is displayed in the lower right corner A of the screen in Fig. 6, and the color selected in Fig. 7 is displayed in the lower right corner B in the screen in Fig.

Reading samples in black text on a white background may have a high degree of stress because the contrast sensitivity is 100%. Most people experience visual stress during their daily lives even if they are normal color vision. By finding an overlap sample with the least visual stress, it can be applied to the illumination applicable to everyday life or the color of a color lens.

It is further preferable that the final color thus selected is finally compared with a black sample on the white background, as shown in Fig. 9, to finally confirm whether overlaying is helpful to the user.

The color we perceive is not the intrinsic color of the object, but the color of light that the object partially absorbs and partially reflects. For example, purple appears at 430 nm, green at 520 nm, yellow at 575 nm, and red at wavelengths of 650 nm. Visible light is a part of the electromagnetic spectrum and its wavelength ranges from 350 to 750 nm. That is, the color is a phenomenon produced by a combination of light wavelengths of visible light spectrum. However, the color of a person who recognizes this color is not a physical characteristic inherent to a subject in a subjective sense, but a result created by an individual through his or her own eyes and the nervous system.

Therefore, even if the same object is seen, the perception of color may be slightly different depending on the person. However, there is no problem in communicating or exchanging information in everyday life, but there is a case where the color difference is different from that of a normal person beyond the difference of fine color recognition. The characteristic of color hue is that it can not recognize any color at all or distinguish it from other colors.

The recognition of color depends specifically on the function of the cone cell, one of the photoreceptors in the retina. Therefore, when there is an abnormality in the function of these cone cells, a color vision abnormality occurs immediately.

Hue is a common symptom, occurring in approximately 5% to 8% of the total male population. In the West, 8% of males and 0.5% of females are color vision defects. In Korea, 5.9% of all males and 0.4% of females are known to have color vision defects.

Deuteranomaly is the most common color vision disorder, accounting for 25 ~ 45% of total color vision. Followed by Deuteranopia, Protanopia, and Protanomaly. However, these three frequencies are similar, accounting for about 1% of the total male population. Third color blindness or complete color blindness is very rare and has a frequency of about 0.005%.

Screening, grading, diagnostic, and vocational tests can be classified according to the purpose of the test.

There are Pseudoisochromatic plates test, Ishihara pseudoisochromatic plates test, Hardy-Rand-Rittler pseudoisochromatic plates test, and so on. There are color test methods for the degree of accuracy test. There are FM 100 color test (Farnsworth-Munsell 100-hue test) and panel D-15 test in detail. There are anomaloscopes as a diagnostic method of diagnosis confirmation. There is a Lantern test as a test method of job aptitude test.

Since the function of the cone cell is inherent in the problem of color vision, fundamental treatment is not yet possible. However, it is possible to partially correct color anomalies with colored contact lenses or glasses, which is a partial improvement such as Ishihara's color matching test. Therefore, instead of improving the color discrimination ability itself, by enhancing the contrast of the adjacent two colors, one side is made to be brighter and the other side is made to be relatively dark, thereby enhancing the difference in contrast and brightness so that the two colors can be more easily distinguished.

Therefore, the actual color recognition ability may be rather reduced. Currently available contact lenses are approved by the Food and Drug Administration in major countries. Available in 7 ~ 8 different types of lenses, it is possible to select the most effective color lens by directly checking the color gamut, and magenta color is the most used. However, this method is not helpful for all color blindness, and it can be selectively applied only if the distinction of the color is very important for the person's work or life. Rather, It is recommended that you decide with your ophthalmologist very carefully after consultation and examination.

That is, it is possible to discriminate the degree of color blindness, color weakness and color weakness, but it is difficult to give a prescription for color weakness, so that the test for general color vision abnormality can be easily performed, To prescribe, you can check for color vision problems.

As shown in FIG. 10, the test for color vision abnormality (color hue inspection) displays one of a plurality of color samples as the reference color 10, and arranges the other color samples irregularly to display to the user.

Selecting a color sample most similar to the reference color, updating a color sample selected by a user to a reference color, and selecting a color sample most similar to the updated reference color, The results for the color samples and the color samples sequentially store the time 20 selected by the user.

And then selects the color samples that are considered closest to the reference color in order. At this time, the reference color is changed to a color sample selected by the user each time the user selects a color sample.

In other words, the color samples selected by the user disappear from the arranged positions, and the color sample selected by the user is updated to the reference color at the position where the reference color is displayed. This is to intuitively show the reference color for comparison when selecting the next color sample.

The color samples can be color-coded using the colors used for the FM 100 color test (Farnsworth-Munsell 100-hue test), panel D-15 test, or using the standard colorimetric or RGB color table made according to the industry standard , Where the color table is meant to include a color wheel (such as Munsell's 20 color wheel).

The degree of color blindness and the degree of color blindness can be determined on the basis of the result of the color selected by the user and the time when the color sample is selected by the user. That is, based on the results of the color vision test, it is possible to discriminate which color is hard to distinguish, and how difficult it is if it is difficult. This can be determined by how many times the wrong place occurred.

Although the reading test alone can find an appropriate overlap color, it is possible to improve the reliability of the reading test by discriminating the degree of color vision abnormality and the degree of color vision abnormality through the color vision test. This is because the result of the reading test can not be relied on if the color vision test is judged as a color blindness, because the ability to distinguish the color is insufficient. In other words, it is desirable to perform the color vision test in parallel to confirm the reliability of the reading test.

If the final overlay color thus determined is applied to a lens (such as a spectacle) or a lamp, the visual stress of the user can be minimized.

This is because it is possible to lower the contrast sensitivity of the user by the overlaid color, thereby improving the reading ability and lowering the stress.

As shown in FIG. 6, the visual stress testing apparatus according to an embodiment of the present invention may further include a solar light source unit 400 and a solar light source control unit 450.

The solar light source 400 emits light from the other side of the observation hole 110 toward the sample mounting part 300 inside the housing 100.

The solar light source control unit 450 controls the brightness of the solar light source unit 400.

At this time, the read sample can be printed with letters, figures, patterns or the like printed on a transparent base through which light can be transmitted.

Previously, when choosing the colors of sunglasses (gray, raven, brown, etc.), it was common to choose a color that you liked. However, since this is a selection irrespective of the degree of visual stress, there is a problem in that the user may be subjected to visual stress from objects seen with sunglasses.

In order to solve such a problem, when a reading sample such as a tracing paper is attached to the sample mounting part 300 and then the brightness of the light source (sunlight color) of the solar light source part 400 such as a power LED is increased, Each reading sample appears differently in different situations. At this time, when the reading sample is not clear, you can select the color of the sunglasses with a good-looking color while viewing the sunglasses. These selected sunglasses allow me to choose the color that reduces my visual stress, ie the color of my sunglasses.

It is to be understood that the invention is not limited to the above-described embodiment, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

100: Housing
110: Observation hole
120: opening / closing door
130: Sliding part
200: RGB illumination unit
300: sample mounting part
250: RGB light control unit
400: solar light source
450: a solar light source control unit

Claims (4)

A housing (100) having a space formed therein and an observation hole (110) through which a certain area of one side is penetrated;
An RGB illumination unit 200 provided in the housing 100 for emitting RGB color light;
A sample mounting part 300 provided inside the housing 100 in the other direction of the observation hole 110 and capable of mounting a read sample; And
A process of controlling the illumination color of the RGB illumination unit 200 and displaying a predetermined number of overlap samples among a plurality of overlap samples in which different color filters are overlapped on the read sample to the user to select the most clear and comfortable overlap sample An RGB illumination control unit 250 for finding a final overlap color;
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The housing (100)
An opening / closing door part 120 which can be opened / closed in a direction toward the other side of the observation hole 110 of the housing 100; And
A slidable sliding portion 130 of the sample mounting portion 300 so that the sample mounting portion 300 can be inserted into and removed from the housing 100;
A solar light source unit 400 that emits light from the other side of the observation hole 110 toward the sample mounting unit 300 in the housing 100; And
A solar light source control unit 450 for controlling the brightness of the solar light source unit 400;
And a visual stress test device. delete delete delete

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