Characteristic information collection method and characteristic information collection device

Abstract

A characteristic information collection method includes: a first subject presentation step of presenting one or more subjects (30) including predetermined visual elements (31 and the like) to a subject in a white light environment in which white light (L0) is incident on the retina (R) of the subject, and a second subject presentation step of presenting one or more subjects (30) including predetermined visual elements (31 and the like) to the subject in a white light environment in which white light (L0) is incident on the retina (R) of the subject; a prescribed light environment creation step for creating a prescribed light environment in which prescribed light (L1) having a different spectral distribution and / or brightness from the white light (L0) is incident on the retina (R) of the subject; a second object presentation step in which the object (30) is presented again to the subject in a predetermined light environment; an information reception step for receiving, from the subject, characteristic information relating to the impression of the subject (30) in the first subject presentation step and the second subject presentation step; and a collection step for collecting the characteristic information received from the subject.

Description

Technical Field

[0001] The present invention relates to a characteristic information collection method and a characteristic information collection device for collecting characteristic information of a subject's perception. Background Art

[0002] Learning disabilities (Learning Disorders) refer to a state where a person is not good at or has difficulty learning a subject in a specific area, even though their overall intelligence is within the normal range, their vision (eyesight) or hearing (hearing) is not impaired, and there is no problem with the learning environment or their own willingness. There are various types of learning disabilities, such as dyslexia, dysgraphia, and dyscalculia. In addition, there are people who are not good at or have difficulty in visual-spatial cognition (the ability to accurately recognize the position or shape / direction / size of an object, or the form or positional relationship).

[0003] Some people with learning disabilities complain that "words seem to shake," "articles seem to undulate," or "paper seems to glow." Such symptoms are called Irlen syndrome, Meares-Irlen syndrome, or visual stress. It is known that such symptoms (visual perception: Vision) can sometimes be improved by using colored films or lenses. In particular, the use of colored lenses or colored films is effective for Irlen syndrome (see Non-Patent Documents 1 and 2).

[0004] Therefore, it is considered that Ellland's syndrome and the like may have a disorder related to visual perception (deviation in visual cognitive function), particularly a deviation in photosensitivity.

[0005] Prior art literature

[0006] Non-patent literature

[0007] Non-patent literature 1: Sandra Irlen et al., "A controlled field study of the use of colored overlays on reading achievement", Australian Journal of LearningDisabilities, Volume 9, 2004-Issue 2, Pages 14-22

[0008] Non-patent literature 2: Keiko Kumagai et al., "The Research of VisualCharacteristics of the Clients with Irlen Syndrome", Japanese Journal of Learning Disabilities, 2021Volume 30Issue 2, Pages 126-137 Summary of the invention

[0009] Problem that the invention aims to solve

[0010] As mentioned above, people with deviations in visual cognition function (light sensitivity) sometimes have a different "perception" from healthy people. However, since their "perception" is innate, it is difficult for them to realize that they are unhealthy. Therefore, even among those who are considered healthy, there are many people with deviations in visual cognition function.

[0011] However, visual cognitive function deviation cannot be treated in hospitals, and is only evaluated in a limited number of research facilities. In addition, the symptoms of visual cognitive function deviation vary greatly, and there are also large individual differences. Therefore, it is impossible to evaluate visual cognitive function deviation without professional knowledge and experience.

[0012] In order to detect deviations in visual cognitive function at an early stage, various self-examination tests [Irlen Self-Test: https: / / irlen.com / get-tested / ] are made public.

[0013] However, self-examination tests are strongly influenced by the subjectivity of the individual (prejudice or vanity). In addition, the deviation of visual cognition function is often not noticed by the individual, so it is very difficult to diagnose by self-examination tests alone.

[0014] Therefore, it is urgent to establish a method that does not rely on people with professional knowledge, can eliminate the subject's subjectivity as much as possible, and can detect deviations in the subject's visual cognitive function (light sensitivity) at an early stage. In addition, as one of the prerequisites (preliminary stages) for establishing such a method, it is necessary to develop a method for collecting characteristic information of the subject's perception.

[0015] In view of such circumstances, an object of the present invention is to provide a specific information collection method and a characteristic information collection device capable of collecting characteristic information of a subject's perception.

[0016] Solutions for solving problems

[0017] The first scheme of the characteristic information collection method involved in the implementation scheme of the present invention comprises: a first object presentation step, in which one or more objects including specified visual recognition elements are presented to the subject in a white light environment in which white light is incident on the retina of the subject; a specified light environment creation step, in which a specified light different from the white light in at least one of spectral distribution and brightness is incident on the retina of the subject; a second object presentation step, in which the object is presented to the subject again in the specified light environment; an information receiving step, in which characteristic information related to the perception of the object in the first object presentation step and the second object presentation step is received from the subject; and a collection step, in which the characteristic information received from the subject is collected.

[0018] A second aspect of the characteristic information collecting method is the first aspect, further comprising a summarizing step of summarizing the information obtained in the collecting step.

[0019] A third method of collecting characteristic information is, in the second method, an analysis step of creating an analysis table based on the information obtained in the summing step. An analysis step (diagnosis step) of analyzing characteristics related to the oral sensation of the subject based on the information obtained in the summing step may also be included.

[0020] A fourth aspect of the characteristic information collection method is that, in the second aspect, in the information receiving step and the collecting step, the characteristic information is quantified using a Likert scale in a multiple-choice answer method.

[0021] A fifth feature information collection method is that, in the fourth feature information collection method, the SD method among the psychometric methods is used in the multi-level option answer method.

[0022] A sixth aspect of the characteristic information collecting method is that, in any one of the first to fifth aspects, the predetermined light is yellow light having a dominant wavelength of 570 nm to 590 nm.

[0023] A seventh aspect of the characteristic information collection method is that, in any one of the first to sixth aspects, the predetermined light is magenta light having a complementary color dominant wavelength of 500 nm to 570 nm.

[0024] An eighth aspect of the characteristic information collecting method is that, in any one of the first to seventh aspects, the predetermined light is cyan light having a dominant wavelength of 470 nm to 530 nm.

[0025] A ninth aspect of the characteristic information collecting method is that, in any one of the first to eighth aspects, the predetermined light is green light having a dominant wavelength of 500 nm to 570 nm.

[0026] A tenth embodiment of the characteristic information collection method is that in the first to ninth embodiments, the brightness of the prescribed light is 0.001 to 5 cd / m 2 .

[0027] An eleventh aspect of the characteristic information collecting method is that, in the first to tenth aspects, in the predetermined light environment creating step, the predetermined light is incident on the peripheral visual field area of ​​the retina.

[0028] The twelfth scheme of the characteristic information collection method is that in the first to eleventh schemes, the viewed object is text, number or symbol, and the specified visual recognition element is any one or more of the chest, opening, contact point, top point, bottom point and crotch of the text, number or symbol.

[0029] A thirteenth scheme of the characteristic information collection method is that in any of the first to twelfth schemes, the viewed object is text, numbers or symbols displayed on a curved surface, and the predetermined visual recognition element is a deformation of the text, numbers or symbols.

[0030] A fourteenth scheme of the characteristic information collection method is that in any of the first to thirteenth schemes, the viewed object is a digitally displayed letter, number or symbol, and the predetermined visual recognition element is a missing portion of the letter, number or symbol.

[0031] A fifteenth scheme of the characteristic information collection method is that in the first to fourteenth schemes, the viewed object is text, numbers or symbols displayed in a dot matrix, and the prescribed visual recognition element is a missing portion of the text, number or symbol.

[0032] A sixteenth aspect of the characteristic information collecting method is that, in any one of the first to fifteenth aspects, the viewed object is a three-dimensional object, and the predetermined visual recognition element is concavity and convexity of a surface of the three-dimensional object.

[0033] A seventeenth aspect of the characteristic information collection method is that, in any one of the first to sixteenth aspects, the viewed object is a three-dimensional object, and the predetermined visual recognition element is a texture of a surface of the three-dimensional object.

[0034] An eighteenth method of the characteristic information collection method is, in the first to seventeenth methods, the method further comprises changing at least one of the spectral distribution and the brightness of the prescribed light, and performing the prescribed light environment creation step to the collection step again.

[0035] The first scheme of the characteristic information collection device involved in the implementation scheme of the present invention is to include: a first optical part, which creates a white light environment in which white light is incident on the retina of a subject; a second optical part, which creates a prescribed light environment in which prescribed light different from the white light in at least one of spectral distribution and brightness is incident on the retina of the subject; a subject presentation part, which presents one or more subjects including prescribed visual recognition elements to the subject in the white light environment, and then presents the subject to the subject again in the prescribed light environment; an information receiving part, which receives characteristic information related to the perception of the subject in the white light environment and the prescribed light environment from the subject; and a collection part, which collects the characteristic information received by the information receiving part.

[0036] A second aspect of the characteristic information collection device is the first aspect, further comprising a total analysis unit that performs various calculation processes based on the collected information obtained from the collection unit.

[0037] A third aspect of the characteristic information collecting device is the device according to the second aspect, further comprising an output unit for outputting the results of the various arithmetic operations.

[0038] A fourth embodiment of the characteristic information collecting device is that, in the first to third embodiments, the viewed object presenting unit is a display.

[0039] A fifth embodiment of the characteristic information collecting device is that, in the first to fourth embodiments, the second optical part is glasses, goggles, a lamp or a lighting device.

[0040] A sixth embodiment of the characteristic information collecting device is that, in the first to fifth embodiments, the second optical part is a display.

[0041] A seventh embodiment of the characteristic information collecting device is that, in the first to sixth embodiments, the first optical part is a lamp or a lighting device.

[0042] An eighth embodiment of the characteristic information collecting device is that, in the first to seventh embodiments, the first optical part is a display.

[0043] Effects of the Invention

[0044] The characteristic information collection method and characteristic information collection device of the present invention can collect characteristic information of the subject's perception without relying on people with professional knowledge, and can exclude the subject's subjectivity as much as possible. Moreover, the characteristic information of the subject's perception can be aggregated and analyzed. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a diagram showing a characteristic information collecting device 1 according to the embodiment.

[0046] Figure 2 1 is a system block diagram showing a schematic configuration of the characteristics information collecting device 1 .

[0047] Figure 3 (a) is a longitudinal cross-sectional view showing the structure of a human eye, Figure 3 (b) is a schematic diagram showing human visual cells.

[0048] Figure 4 It is the spectral sensitivity curve of human visual cells.

[0049] Figure 5 is the xy chromaticity diagram of the color space.

[0050] Figure 6 1 is a diagram showing a viewed object 30 including predetermined visual recognition elements.

[0051] Figure 7 1 is a diagram showing a viewed object 40 including predetermined visual recognition elements.

[0052] Figure 8 1 is a diagram showing a viewed object 50 including predetermined visual recognition elements.

[0053] Fig. 9 1 is a diagram showing a viewed object 60 including predetermined visual recognition elements.

[0054] Fig.10 It is an explanatory diagram showing viewed objects 70 and 80 including predetermined visual recognition elements.

[0055] Fig.11 This is a flowchart showing a characteristic information collection method according to an embodiment.

[0056] Fig.12 : is a figure which shows the answer form Q.

[0057] Fig.13 : is a figure which shows the SD graph analysis table R. DETAILED DESCRIPTION

[0058] A characteristics information collecting method and a characteristics information collecting device according to an embodiment of the present invention will be described with reference to the drawings.

[0059] The characteristic information collection method and characteristic information collection device 1 create an environment in which the "perception" of a person with a deviation in visual cognition function (light sensitivity) is prone to change, and after an adaptation period, present a subject that is prone to feel the change in "perception". Then, "perception characteristic information" related to the pattern / degree of change in "perception" is collected from the subject.

[0060] [Characteristic information collection device 1]

[0061] Figure 1 It is a diagram showing a characteristic information collecting device 1 according to the embodiment.

[0062] Figure 2 1 is a system block diagram showing a schematic configuration of the characteristics information collecting device 1 .

[0063] The characteristic information collecting device 1 includes a personal computer 10 , a color lamp 20 , and an indoor lighting device 25 .

[0064] The personal computer 10 includes a processing unit 11 , a storage unit 12 , a display 13 , a keyboard 14 a , an I / O (input / output) 15 , and the like.

[0065] The calculation processing unit (collection unit, summary analysis unit) 11 is a CPU or the like, and executes various processes in the personal computer 10. The calculation processing unit 11 controls a characteristic information collection method described later.

[0066] The storage unit 12 is a ROM, RAM, HDD, SSD, etc., and stores various programs and databases. Specifically, a characteristic information collection program 17 and a viewed object database 18 are stored in the storage unit 12 .

[0067] The display (object presenting unit, output unit, (first optical unit, second optical unit)) 13 displays text or images, etc. according to the instruction from the operation processing unit 11. The display 13 displays (presents) the object 30, etc., which will be described later, toward the subject (a person with a deviation in visual cognition function).

[0068] In addition, the display 13 also displays a response form Q of the characteristic information receiving / collecting step S5 described later or the result (total information, analysis information) of the totaling / analyzing step S6 .

[0069] The display 13 has a plurality of pixels, and the pixel density thereof is preferably 150 ppi or more, and particularly preferably 200 ppi or more.

[0070] The display 13 controls the brightness (illuminance), the color (wavelength) of the emitted light, etc. according to the command from the calculation processing unit 11. The display 13 is 0.001 to 1000000 cd / m 2 In particular, it is possible to switch the brightness to 5cd / m 2 The luminous intensity is less than 5cd / m 2 The glow.

[0071] The keyboard (information receiving unit) 14a is an operation input unit for inputting information such as characters and numerical values ​​into the personal computer 10. In addition to the keyboard 14a, or in place of the keyboard 14a, a mouse (information receiving unit) 14b, a pointing device, a touch panel (display 13), etc. may be used.

[0072] The I / O 15 is an interface for inputting and outputting information with external devices connected to the personal computer 10. The I / O 15 is connected to a color lamp 20 and a room lighting device 25. A printer 16 or the like may also be connected to the I / O 15.

[0073] The personal computer 10 is further equipped with a camera, a microphone, a speaker, and the like.

[0074] (Colored lights 20)

[0075] The color lamp (second optical portion, (first optical portion)) 20 is a lighting device that radiates the predetermined light L1. The color lamp 20 is a lighting device having a lamp such as a bulb, a fluorescent lamp, an LED, or an OLED, and is, for example, a desk lamp or a handheld lamp.

[0076] The color lamp 20 is controlled to turn on and off, brightness (illuminance), color (wavelength), irradiation direction, etc., based on a command from the arithmetic processing unit 11 of the personal computer 10 .

[0077] Color light 20 0.001~1000000cd / m 2 In particular, it is possible to switch the brightness to 5cd / m 2 The luminous intensity is less than 5cd / m 2 The glow.

[0078] Colored lamp 20 irradiates predetermined light L1 toward the face of a subject who is looking at display 13 in front of personal computer 10. When the subject looks at an image (viewing object 30, etc.) displayed on display 13, predetermined light L1 enters retina R of the subject.

[0079] The environment in which the predetermined light L1 enters the subject's retina R is called a predetermined light environment. The colored lamp 20 functions as a light source in the predetermined light environment creation step S3 described below. In the predetermined light environment, the subject can watch the image (viewing body 30, etc.) displayed on the display 13 without obstruction.

[0080] The colored light 20 is preferably arranged at a position away from the display 13. This is to allow the prescribed light L1 to be incident on the peripheral visual field area R2 of the retina R. It is preferred that the prescribed light L1 does not hinder the subject's gaze when the subject is looking at the image (the object 30, etc.) displayed on the display 13. For example, the light of the image (the object 30, etc.) displayed on the display 13 is incident on the central visual field area R1 of the retina R, and the prescribed light L1 is incident on the peripheral visual field area R2 of the retina R.

[0081] (Indoor lighting device 25)

[0082] The indoor lighting device (first optical part, (second optical part)) 25 is a ceiling lamp arranged on the ceiling of the room (indoor H) where the personal computer 10 is placed. The personal computer 10 is placed in the indoor H where natural light (sunlight) is blocked, and by lighting the indoor lighting device 25, the white light L0 is irradiated to the entire area of ​​the indoor H.

[0083] The indoor lighting device 25 is controlled to turn on, turn off, and have brightness (illuminance) etc. in accordance with a command from the arithmetic processing unit 11 of the personal computer 10. The connection between the indoor lighting device 25 and the personal computer 10 is not limited to a wired connection, but may be a wireless connection.

[0084] Indoor lighting device 25 with 0.001~1000000cd / m 2 In particular, the brightness can be switched to 5cd / m 2 The luminous intensity is less than 5cd / m 2 The glow.

[0085] When the subject looks at an image (viewing object 30 or the like) displayed on the display 13 , the white light L0 enters the retina R (central visual field region R1 and peripheral visual field region R2 ) of the subject.

[0086] An environment in which white light L0 enters the subject's retina R is called a white light environment. The room lighting device 25 functions as a light source in the white light environment creation step S1. In the white light environment, the subject can watch the image (viewing body 30, etc.) displayed on the display 13 without obstruction.

[0087] The calculation processing unit 11 executes the program stored in the storage unit 12 , reads various data stored in the storage unit 12 as necessary, and operates the personal computer 10 .

[0088] Specifically, the processing unit 11 executes the characteristic information collection program 17, reads the data of the object 30, etc. from the object database 18, and displays the object 30, etc. on the display 13. At this time, the processing unit 11 turns on / off the indoor lighting device 25 or the color lamp 20, so that the white light L0 or the specified light L1 is incident on the retina R of the subject.

[0089] In order to receive the answers from the subject, the calculation processing unit 11 displays the answer form Q related to the changes in the perception of the object 30, etc. on the display 13. Then, the calculation processing unit 11 stores and saves (collects) the information (raw data of the characteristic information of perception) input from the keyboard 14a, etc.) in the storage unit 12. In addition, the calculation processing unit 11 performs various calculation processes (aggregation / analysis) on the collected information, and displays / outputs the results (aggregation information or analysis information of the characteristic information of perception) on the display 13 or the printer 16.

[0090] [Visual cells]

[0091] Figure 3 (a) is a longitudinal cross-sectional view showing the structure of the human eye. Figure 3 (b) is a schematic diagram showing human visual cells.

[0092] Figure 4 This is a diagram showing the spectral sensitivity curve of human visual cells.

[0093] Figure 5 This is a diagram showing an xy chromaticity diagram of the color space of the International Commission on Illumination (CIE1931).

[0094] The visual cells present in the human retina R include cone cells and rod cells. Cone cells are located near the central fovea of ​​the retina R and are cone-shaped visual cells that detect color. Cone cells function in bright places. Rod cells are located in the periphery of the central fovea and are rod-shaped visual cells that detect light. Rod cells mainly function in dark places.

[0095] The vision when cone cells are working (when there is sufficient light) is called photopic vision. Photopic vision is when the brightness is between 5 and 1,000,000 cd / m 2 Produced under light intensity (illuminance of 10 to 100,000 lx).

[0096] The vision under the condition that rod cells work (under the condition of low light) is called scotopic vision. Scotopic vision is when the brightness is 0.01 to 0.000001 cd / m 2 Produced under light intensity (illuminance 0.001~0.01lx).

[0097] The vision under the condition that both cone cells and rod cells work (although the amount of light is small, it is not completely dark) is called mesopic vision. Mesopic vision is the vision that overlaps the bright vision and the dark vision. Mesopic vision is the vision under the brightness of 0.001~5cd / m 2 The International Commission on Illumination (CIE) defines brightness as 0.005 to 5 cd / m 2 The Illuminating Engineering Society of North America (IES) defines brightness as 0.001 to 3 cd / m 2 Defined as intermediate vision.

[0098] Cone cells are classified into three types corresponding to the three primary colors of light. Specifically, there are long cone cells that respond to light in the long wavelength range (yellow periphery), middle cone cells that respond to light in the medium wavelength range (yellow-green periphery), and short cone cells that respond to light in the short wavelength range (blue periphery).

[0099] Long pyramidal cells are also called red pyramidal cells. Medium pyramidal cells are also called green pyramidal cells. Short pyramidal cells are also called blue pyramidal cells.

[0100] A particular color is perceived (noticed) by the combination of the intensities of stimulation received by each of the three types of pyramidal cells (the relative ratio of the excitation of the three types of pyramidal cells).

[0101] Hereinafter, long cone cells are also referred to as L visual cells VL, middle cone cells are also referred to as M visual cells VM, short cone cells are also referred to as S visual cells VS, and rod cells are also referred to as R visual cells VR.

[0102] [Visible light]

[0103] Visible light is light with a wavelength of 380 to 780 nm. The relationship between the wavelength and color of visible light (spectrum) is roughly as follows. Wavelengths of 380 to 430 nm: violet, 430 to 460 nm: blue, 460 to 500 nm: cyan, 500 to 570 nm: green, 570 to 590 nm: yellow, 590 to 610 nm: orange, 610 to 780 nm: red.

[0104] The sensitivity of photoreceptors to visible light is wavelength-dependent. Specifically, the absorption maximum wavelength of L photoreceptors VL is around 558 nm, the absorption maximum wavelength of M photoreceptors VM is around 531 nm, the absorption maximum wavelength of S photoreceptors VS is around 419 nm, and the absorption maximum wavelength of R photoreceptors VR is around 500 nm.

[0105] The peak wavelength at which the intensity of visible light reaches its maximum is different from the wavelength actually perceived by the eye. The wavelength of the color perceived by the eye is called the dominant wavelength or dominant color wavelength.

[0106] The dominant wavelength of light perceived as bluish purple is around 400nm (380nm to 430nm).

[0107] The dominant wavelength of light perceived as blue is around 450nm (430nm to 470nm).

[0108] The dominant wavelength of light perceived as blue is around 490 nm (470 nm to 530 nm).

[0109] The dominant wavelength of light perceived as green is around 550nm (530nm to 570nm).

[0110] The dominant wavelength of light perceived as yellow is around 580nm (570nm to 590nm).

[0111] The dominant wavelength of light perceived as red is around 610 nm (590 nm to 780 nm).

[0112] The complementary dominant wavelength of light perceived as magenta is around 550nm (530nm to 570nm).

[0113] (White light L0)

[0114] White light L0 is light in which all wavelengths (colors) of visible light are almost uniformly mixed and does not give a sense of color matching. White light L0 is sometimes also defined as the color of average daylight.

[0115] White light L0 has a brightness of 5 to 1,000,000 cd / m 2 The white light L0 is incident on the subject's retina R to realize bright vision. The white light L0 is the light to which all three types of cone cells (S photoreceptor cells VS, M photoreceptor cells VM, and L photoreceptor cells VL) present in the retina R react (excite).

[0116] (Specified light L1)

[0117] The predetermined light L1 is visible light having at least one of spectral distribution and brightness different from the white light L0. The predetermined light L1 includes light LA ​​having spectral distribution different from the white light L0, light LB having brightness different from the white light L0, and light LBA having spectral distribution and brightness different from the white light L0.

[0118] The difference in spectral distribution means that the predetermined light L1 (light LA, LBA) is colored light. The difference in brightness means that the predetermined light L1 (light LB, LBA) is 0.001 to 5 cd / m 2 of light.

[0119] Light LA ​​is light (color) with a wavelength that is a part of the visible light and has a brightness of 5 to 1,000,000 cd / m 2 of light (colored light).

[0120] Light LA ​​is one or two of the three types of light that the cone cells mainly react to. LA is any one of yellow light LAY with a dominant wavelength of 570nm to 590nm, magenta light LAM with a complementary dominant wavelength of 500nm to 570nm, cyan light LAC with a dominant wavelength of 470nm to 530nm, and green light LAG with a dominant wavelength of 500nm to 570nm.

[0121] The yellow light LAY is visible light that excites the L visual cells VL and the M visual cells VM and inhibits (calms) the S visual cells VS.

[0122] The yellow light LAY includes light having a peak wavelength near 580 nm, light having a bottom wavelength near 450 nm (the complementary color of blue), and light having peak wavelengths near 550 nm and 610 nm (a mixed color of green and red).

[0123] When yellow light LAY is incident on the retina R, it excites the L visual cells VL and the M visual cells VM, and inhibits the S visual cells VS.

[0124] The magenta light LAM is visible light that excites the L visual cells VL and the S visual cells VS and inhibits the M visual cells VM.

[0125] The magenta light LAM includes light having a bottom wavelength near 550 nm (complementary color of green) and light having peak wavelengths near 450 nm and 610 nm (mixed color of blue and red).

[0126] The cyan light LAC is visible light that excites the M visual cells VM and the S visual cells VS and inhibits the L visual cells VL.

[0127] The cyan light LAC includes light having a peak wavelength near 490 nm, light having a bottom wavelength near 610 nm (the complementary color of red), and light having peak wavelengths near 450 nm and 550 nm (a mixture of blue and green).

[0128] The green light LAG is visible light that excites the M visual cells VM and inhibits the L visual cells VL and the S visual cells VS. That is, the color lamp 20 allows the green light LAG (main wavelength of about 550 nm) to enter the retina R.

[0129] The green light LAG includes light having a peak wavelength near 550 nm and light having bottom wavelengths near 450 nm and 610 nm (a mixed color of yellow and cyan).

[0130] Light LB is a mixture of all wavelengths (colors) of visible light, with a brightness of 0.001 to 5 cd / m 2 Gray light LB is light obtained by reducing the brightness of white light L0, and is light in which the color tone is difficult to perceive.

[0131] The gray light LB realizes intermediate vision by entering the subject's retina R. That is, the gray light LB is light at which the rod cells present in the retina R start to react.

[0132] Rod cells detect light and darkness with high sensitivity. Rod cells do not participate in color detection. Brightness is 5cd / m 2 The following light, when incident on the retina R, excites the rod cells, causing them to perceive light and dark.

[0133] The gray light LB excites both the cone cells (L photoreceptor cells VL, M photoreceptor cells VM, S photoreceptor cells VS) and the rod cells (R photoreceptor cells VR) (intermediate vision).

[0134] Light LBA is light (color) with a wavelength that is part of the visible light, and has a brightness of 0.001 to 5 cd / m 2 In the light LBA, there are gray-yellow light LBY, gray-magenta light LBM, gray-cyan light LBC, and gray-green light LBG.

[0135] The yellow light LBY is light obtained by reducing the brightness of the yellow light LAY. The magenta light LBM is light obtained by reducing the brightness of the magenta light LAM. The cyan light LBC is light obtained by reducing the brightness of the cyan light LAC. The green light LBG is light obtained by reducing the brightness of the green light LAG.

[0136] [Viewed object 30~80]

[0137] Figure 6 1 is a diagram showing a viewed body 30 including predetermined visual recognition elements 31 and the like.

[0138] Figure 7 1 is a diagram showing a viewed object 40 including a predetermined visual recognition element 41 .

[0139] Figure 8 1 is a diagram showing a viewed object 50 including a predetermined visual recognition element 51 .

[0140] Fig. 9 1 is a diagram showing a viewed object 60 including a predetermined visual recognition element 61 .

[0141] Fig.101 and 2 are diagrams showing viewed objects 70 and 80 including predetermined visual recognition elements 72 and 74 , wherein (a) is a golf ball 71 and (b) is a Venetian blind 73 .

[0142] The object database 18 stores image data of a plurality of objects 30 to 80 . Each of these objects 30 to 80 is displayed on the display 13 individually.

[0143] The objects 30 to 80 are objects that the subject is to focus on. In particular, the object 30 and the like are objects that include a predetermined visual recognition element 31 and the like.

[0144] The objects 30 to 80 may be any of a flat object and a three-dimensional object, and are preferably stationary objects (static images).

[0145] The prescribed visual recognition factor refers to a factor that makes it difficult or difficult for a person with a deviation in visual recognition function to visually recognize (hereinafter referred to as a low visual recognition factor). In other words, for a person with a deviation in visual recognition function, it is a factor that makes it difficult / unfavorable to read and write text or visual space recognition of the object 30, etc. Therefore, the low visual recognition factor can also be called a visual recognition hindering factor or a visual recognition difficulty factor.

[0146] The object 30 is a letter, Roman numeral or symbol. The specified visual recognition element is the element (element) in these letters or numbers. Specifically, it is a counter 31, an aperture 32, a joint 33, an apex 34, a vertex 35, a crotch 36, etc. In addition, the specified visual recognition element can also be a bowl, a loop, a tie, a descender, an ascender, etc.

[0147] The counter 31 refers to the closed space contained in the characters. "d", "p", etc. have the counter 31. The space that is not completely closed is also included in the counter 31. The space that is not completely closed in "c", "n", etc. is sometimes also referred to as an opening 32 or an open counter. "a" and "e" have the counter 31 and an opening 32, respectively. In addition, the closed space of "e" is sometimes referred to as an "eye".

[0148] like Figure 6 As shown, a person with a visual cognitive function deviation tends to be poor at visual recognition (visual recognition) of characters such as "a" or "e" having a bosom 31 or an opening 32. A person with a visual cognitive function deviation cannot accurately recognize the bosom 31 and the opening 32, or has difficulty distinguishing them.

[0149] A person with a defective visual recognition function has difficulty or is not good at visually recognizing a portion where two lines are connected, such as the contact point 33 , the top point 34 , the bottom point 35 , and the crotch 36 .

[0150] In addition, people with deviations in visual cognition have difficulty or are not good at distinguishing the presence or absence of the bowl, ring, tail, descender, and ascender.

[0151] The object 40 is an alphabetic character, Roman numeral or symbol (curved character) displayed on a curved surface. The predetermined visual recognition element is a deformation 41. That is, it is a character or the like whose height or width is different or changed.

[0152] like Figure 7 As shown, the text printed or displayed on the curved surface appears to have different text widths. The text located at both ends in the horizontal direction becomes flatter (shrinks) in the horizontal direction, and the text width appears to be smaller.

[0153] A person with a defective visual recognition function tends to be poor at visually recognizing characters with different or varying character heights or character widths (deformation 41) and the like.

[0154] The object of view 50 is a digitally displayed alphabetic character, Roman numeral or symbol (7 segments). The predetermined visual recognition element is a missing portion 51 of these characters or numerals.

[0155] like Figure 8 As shown, in the digitally displayed alphabetic characters or Roman numerals, there are missing portions 61 which do not exist in the original characters or numerals.

[0156] People with visual cognitive impairments tend to be unable to recognize (visually recognize) letters and characters displayed as numbers as letters and characters, etc., but rather recognize them as simple patterns (a plurality of lines). Figure 8 As shown, the digital display of "1" is visually recognized as two vertical bars, and it is difficult or not good to recognize it as a number.

[0157] The object of view 60 is a dot-displayed alphabetic character, Roman numeral or symbol (dot-character). The predetermined visual recognition element is a missing portion 61 of these characters or numerals.

[0158] like Fig. 9 As shown, in the alphabetic characters or Roman numerals displayed in a dot matrix, there are missing parts 61 that do not exist in the original characters or numerals.

[0159] People with visual cognitive impairments tend to be unable to recognize (visually recognize) letters and characters displayed in a dot matrix as letters and characters, etc., but rather recognize them as simple patterns (dots). Fig. 9 As shown, the dot matrix display of "0" is visually recognized as a collection of 14 black circles, which is difficult or not easy to recognize as a number.

[0160] The object 70 is a three-dimensional object (including a 3D texture). The predetermined visual recognition element is a concave-convex 72 or a shadow 74 formed on the surface of the three-dimensional object. The concave-convex 72 is, for example, a microstructure (surface property) such as a dimple or emboss. The shadow 74 is a change in light reflection (surface property) caused by the concave-convex or tilt of the surface of the three-dimensional object.

[0161] People with abnormal visual recognition function tend to be poor at visually recognizing small irregularities 72 or shadows 74 existing on the surface of a three-dimensional object. It is considered that it is difficult to distinguish and recognize the irregularities 72 or shadows 74 (properties of reflected light).

[0162] like Fig.10 As shown in (a), when the dimples (concavities and convexities 72) of the golf ball 71 are seen, it is difficult or poor to obtain a three-dimensional effect from their shadows, and there is a tendency to visually recognize them as a flat pattern. Alternatively, it is difficult or poor to distinguish between the concavities and convexities.

[0163] like Fig.10 As shown in (b), when the slats of the Venetian blind 73 are seen, it is difficult or poor to discern the direction or angle of the slats from their shadows 74. In other words, it is difficult or poor to obtain a three-dimensional effect from the shadows 74 of the slats of the Venetian blind 73, and there is a tendency to visually recognize them as a flat pattern.

[0164] The viewed object 70 is not limited to the golf ball 71 or the Venetian blind 73. For example, it may be a plurality of tiles laid on a plane. People with abnormal visual recognition function tend to be poor at visually recognizing the joints (concavities and convexities 72) between tiles.

[0165] The object 80 is a three-dimensional object (including 3D texture) (refer to Fig.10 ). The visual recognition element is defined as the texture 81 of the three-dimensional object. The texture 81 is caused by the surface properties (surface characteristics) of the three-dimensional object. The surface properties are based on the reflection properties (reflectivity) or transmission properties (transmittance) of the surface of the three-dimensional object. In other words, people visually recognize the texture 81 of the three-dimensional object based on the properties of light reflected or transmitted on the surface of the three-dimensional object (gloss, transparency, shadow / shading, etc.).

[0166] People with abnormal visual perception tend to be poor at visually recognizing the texture 81 of the surface of a three-dimensional object. It is considered difficult for them to distinguish and recognize shadows based on the texture 81 (reflection characteristics, transmission characteristics).

[0167] The viewed object 80 is a natural landscape (clouds, plants, etc.), a building, interior decoration, or interior decoration (curtains, stairs, etc.). The viewed object 80 may also be a golf ball 71 or a Venetian blind 73.

[0168] People with abnormal visual cognition ability find it difficult or incompetent to obtain a three-dimensional sense from the texture 81 (gloss, transparency, shadow / shade, etc.) of the surface of buildings, trees, plants, clouds, etc., and tend to visually recognize them as flat patterns, etc.

[0169] These objects of view 30 to 80 are displayed on the display 13 or the like after their colors, brightness (contrast), sizes, postures (angles), etc. are adjusted as desired.

[0170] The color of the object 30 is preferably a single color (particularly the objects 30 to 60). The color of the object 30 is, for example, black, white, or gray (grayscale). The color of the object 30 can be changed to red, blue, green, yellow, cyan, or magenta.

[0171] When the display 13 displays the object 30, etc., the background portion (peripheral portion 13b) other than the object 30, etc. is made into a color different from that of the object 30, etc. The background portion (peripheral portion 13b) is preferably white, black, or gray (grayscale), for example. In addition, the color of the object 30, etc. is preferably changeable to red, blue, green, yellow, cyan, or magenta.

[0172] The alphabetic characters, Roman numerals or symbols of the objects 30 to 60 may be displayed one by one on the display 13, or a plurality of characters may be displayed simultaneously. However, when a plurality of characters are displayed simultaneously, they are preferably arranged or disposed randomly so that the subject's inference is not effective.

[0173] The objects 30 to 60 are not limited to alphabetic characters or Roman numerals, but may be characters in other languages ​​such as Chinese characters, Hiragana, Katakana, etc.

[0174] [Characteristic information collection method]

[0175] Fig.11 This is a flowchart showing a characteristic information collection method according to an embodiment.

[0176] The characteristic information collection method comprises: a white light environment creation step S1, a viewed object presentation step S2, a prescribed light environment creation step S3, a second viewed object presentation step S4, a characteristic information receiving / collecting step S5, a summing / analyzing step S6, and an output step S7. In addition, it comprises a re-judgment step S8 and a prescribed light changing step S9.

[0177] (White light environment creation process S1)

[0178] The characteristic information collection method is performed under the condition that the subject sits in front of the personal computer 10 and can look at the display 13. The personal computer 10 is placed in a white light environment in which white light L0 is incident on the subject's retina R. The white light environment is created by lighting the indoor lighting device 25 arranged on the ceiling of the room H in which the personal computer 10 is placed.

[0179] The characteristic information collection program 17 is executed to start the characteristic information collection method. The lighting of the indoor lighting device 25 (creation of a white light environment) is performed by executing the characteristic information collection program 17. The characteristic information collection program 17 may be executed in a state where the indoor lighting device 25 is previously lit.

[0180] The operation of the personal computer 10 may be performed by the subject or by an assistant (a person conducting the test) or the like.

[0181] In order to make the subject adapt to the white light environment (adapt to brightness), the subject is made to stay in the room H where the indoor lighting device 25 is turned on for about 1 minute or more (after the adaptation time has passed).

[0182] The white light L0 is absorbed / reflected (diffusely reflected) / transmitted by the wall or floor of the room H, the display 13 , etc., and the reflected light or the transmitted light enters the retina R of the subject. The white light L0 may directly enter the retina R of the subject from the room lighting device 25 .

[0183] (Viewed Object Presentation Step S2)

[0184] In the object presenting step S2, at least one of the objects 30 to 80 is presented in front of the subject in a white light environment. In order for the subject to not forget the change in the perception of the object 30, etc., it is preferable to present about 3 to 5 types of objects 30, etc.

[0185] The object 30 and the like are displayed on the central portion 13a of the display 13. When a plurality of objects 30 are displayed (presented) on the display 13, the objects 30 and the like are displayed one by one in sequence. Objects of the same type (objects 30, 50, 60) may be displayed in pairs of 2 or 3.

[0186] In order to allow the subject to relax and gaze at the object 30, each object 30 is preferably displayed on the display 13 for at least 10 seconds. In order to prevent the subject from being stimulated by flickering, the image displayed on the display 13 is kept for more than 10 seconds.

[0187] (Prescribed light environment creation step S3)

[0188] In the predetermined light environment creation step S3, a predetermined light environment is created in which the predetermined light L1 is incident on the retina of the subject. The room lighting device 25 is turned off, and the color lamp 20 is turned on, so that the predetermined light L1 is incident on the retina R of the subject.

[0189] The predetermined light L1 emitted from the color lamp 20 is initially selected as the light LA ​​as the colored light. That is, it is any one of the yellow light LAY, the magenta light LAM, the cyan light LAC, and the green light LAG. The predetermined light L1 (light LA) is most preferably the yellow light LAY.

[0190] When the predetermined light L1 (light LA) enters the retina R of the subject, two or one of the three types of cone cells (L visual cells VL, M visual cells VM, S visual cells VS) mainly react.

[0191] The predetermined light L1 is directly incident on the retina R of the subject from the color lamp 20. The predetermined light L1 may be incident on the retina R of the subject as reflected light or transmitted light.

[0192] When the colored lamp 20 is turned on, the room lighting device 25 may be kept turned on.

[0193] The white light environment creation step S1 (white light environment) and the predetermined light environment creation step S3 (prescribed light environment) are set so that the brightness (illuminance) of the light incident on the retina R becomes substantially the same. For example, 200 to 3000 cd / m2, which is suitable for reading or working, is preferred. 2 Brightness (100~1000lx illumination).

[0194] In order to make the subject adapt to a predetermined light environment (brightness adaptation), the subject is made to stand in front of the personal computer 10 with the colored lamp 20 turned on for about 1 minute or more (brightness adaptation time).

[0195] (Second Viewed Object Presentation Step S4)

[0196] Next, the object 30, etc. is presented again under a predetermined light environment. In the second object presentation step S4, the object 30, etc. presented in the first object presentation step S2 is presented again in front of the subject without being changed. The object 30, etc. is displayed again without changing its color or size, display order, display time, or brightness of the display 13.

[0197] In order to prevent the subject from being stimulated by the flicker, the image displayed on the display 13 is kept for 10 seconds or more.

[0198] (Characteristic Information Receiving / Collecting Step S5)

[0199] In the characteristic information collection step S5, the subject is asked to answer whether there is a change (difference) in the appearance of the object 30, etc. in the white light environment (first object presentation step S2) and the specified light environment (second object presentation step S4) (accept the answer), and the information is collected.

[0200] The characteristic information collection step S5 can be performed in either a white light environment or a predetermined light environment. When the white light environment is restored, the color lamp 20 is turned off and the indoor lighting device 25 is turned on.

[0201] In order to adapt the subject to the white light environment, the subject is allowed to stay in the room H lit by the room lighting device 25 for about 1 minute or more (after the adaptation time has passed) and then the answer is received (characteristic information receiving step S5a).

[0202] A person with a deviation in visual perception function (light sensitivity) may feel that when the predetermined light L1 (yellow light LAY, etc.) enters the retina R, the perception of the object 30, etc., is different from that in a white light environment.

[0203] For example, a person with a deviation in visual cognition function may feel that the color density of the object 30 or the like has increased, or that the stereoscopic effect of the object 70 has increased, in the predetermined light environment creation step S3. In some cases, the person may feel that the visual field has been widened, or that glare has been suppressed.

[0204] The change in the perception of the viewed body 30 etc. varies for each person with a deviation in visual cognition function. For example, there are people whose perception of only the viewed body 30 changes, people whose perception of both the viewed body 30 and the viewed body 70 changes, and people whose perception of all the viewed bodies 30 etc. changes.

[0205] Fig.12 : is a figure which shows the answer form Q.

[0206] First, the answer sheet Q related to the change in the perception of the viewed object 30 or the like is displayed on the display 13 (characteristic information receiving step S5 a ).

[0207] As the answer sheet Q, a multi-level option (multi-level option answer method) is used. A Likert scale (Likert scale) is used to quantify the answers from the subjects. For example, in the case of a 5-level option, "very good" is set to 5 points, "slightly better" is set to 4 points, "no change" is set to 3 points, "slightly worse" is set to 2 points, and "very worse" is set to 1 point.

[0208] The multi-level rating scale is set based on the SD method (Semantic Differential Method) in the psychometric statistics method (psychometric method).

[0209] The following question items are set for each of the viewed objects 30 to 80 and displayed on the display 13. The content of each question item (adjective pair, evaluation scale score, etc.) is stored in the storage unit 12 in advance.

[0210] The following question items and adjective pairs are set for the viewed objects 30 to 80.

[0211] Question 1: Overall change in perception, adjective pair: "Perception has improved" - "Perception has deteriorated"

[0212] Question 1 is a question about whether the object 30 can be recognized as text or numbers, and whether the object 30 is not shaking but is stationary. In addition, it is a question about whether the objects 40, 50, and 60 can be recognized as text or numbers, that is, whether text can be imagined even if there is deformation 41 or defect 51, 61. In addition, it is a question about whether the position, shape, direction, size, and other forms or positional relationships of the objects 70 and 80 can be easily recognized.

[0213] For objects 30 to 80, the following question items and adjective pairs are also set.

[0214] Question 2: Change in visual field, adjective pair: "The surroundings became easier to see" - "The surroundings became harder to see"

[0215] Question 3: Change in brightness, adjective pair: "It became brighter overall" - "It became darker overall"

[0216] Question 4: Changes in dazzling, adjective pairs: "The dazzling has become weaker" - "The dazzling has become stronger"

[0217] Question 5: Change in contrast, adjective pair: "became clearer" - "became blurrier"

[0218] When the objects 30 to 80 are colored, the following question items and adjective pairs are further set.

[0219] Question 6: Changes in brightness, adjective pairs: "The color has become darker" - "The color has become lighter"

[0220] Question 7: Change in saturation, adjective pair: "The color becomes brighter" - "The color becomes duller"

[0221] The following question items and adjective pairs are also set for the viewed objects 70 and 80.

[0222] Question 8: Changes in three-dimensional perception, adjective pair: "The concavity and convexity have become deeper" - "The concavity and convexity have become shallower"

[0223] Question 9: Change in texture, adjective pair: "The gloss / shadow became stronger" - "The gloss / shadow became weaker"

[0224] Next, the subject operates the keyboard 14a or the mouse 14b to answer questions related to changes in the perception of the object 30. Specifically, for each question item, a numerical value is input using the keyboard 14a, or a check button is clicked using the mouse 14b to select the most appropriate item from the five-level options (single answer method).

[0225] For example, the subject answers (inputs a numerical value) about changes in perception when viewing the object 31 (character "a") displayed on the display 13 in a predetermined light environment.

[0226] Regarding question 1, “Change in overall perception,” if the perception is that there is no change, enter “3.”

[0227] On the other hand, when the perception is that "the overall perception changes", the following input is made. That is, "5" is input when the perception becomes very good, and "4" is input when the perception becomes slightly better. "2" is input when the perception becomes slightly worse, and "1" is input when the perception becomes very worse.

[0228] That is, with the value "3" as a reference, a larger value means that the viewing experience becomes better, and a smaller value means that the viewing experience becomes worse.

[0229] The subject or the like gives a minimum of 5 and a maximum of 9 answers (numerical values) for each object 30 or the like. Thus, a plurality of answers for at least one object 30 or the like are obtained (characteristic information collecting step S5b).

[0230] The answer (raw data of characteristic information of perception) for each viewed object 30 or the like is stored and saved (collected) in the storage unit 12 .

[0231] (Totalization / Analysis Step S6)

[0232] In the summing / analyzing step S6, the answer information obtained in the characteristic information collecting step S5 is first summed up to find out whether or not there is a change in the perception of the subject and the degree of change (summary information of characteristic information of perception) (summing up step S6a).

[0233] Specifically, the calculation processing unit 11 performs calculation processing on the answers (numerical values) stored in the storage unit 12, and calculates, for example, the average value, mode value, maximum value, minimum value, variance value, deviation and other aggregate information. In addition, the frequency of each numerical value being input (answer) is calculated. The frequency of a numerical value other than "3" being input (answer), the frequency of "1" or "2" being input, and the frequency of "4" or "5" being input are calculated.

[0234] Fig.13 : is a figure which shows the SD graph analysis table R. Fig.13 This is an example of a graph displaying characteristic information of the visual experience of the viewed object 30 , 50 , 80 when the yellow light LAY is used.

[0235] Next, the calculation processing unit 11 creates an analysis table (analysis information of the characteristic information of the visual perception) by graphing / charting the question items or answers (numerical values) (analysis step S6b). Specifically, the calculation processing unit 11 performs calculation processing on the total information and creates analysis information (output image) such as the SD chart analysis table R.

[0236] The calculation processing unit 11 may create an analysis table such as a pie chart, a radar chart, or a matrix based on the SD graph analysis table R.

[0237] Furthermore, an analysis step (diagnosis step) of analyzing characteristics related to the oral sensation of the subject may be performed based on the information obtained in the summing step S6a or the analysis table created in the analysis table creating step S6b.

[0238] (Output process S7)

[0239] Finally, in the output step S7, the summary information or analysis information (results of various calculation processes) obtained in the summary / analysis step S6 is output externally. The calculation processing unit 11 displays the summary information or analysis information as the degree of change of the subject's perception (characteristic information of perception) on the display 13. The summary information or analysis information can also be printed and output by the printer 16.

[0240] Specifically, as the summary information, for example, an average value, a mode value, a variance value, etc. are output. In addition, as the analysis information, an analysis table such as an SD graph is output.

[0241] (Re-implementation of determination step S8)

[0242] In the re-implementation determination step S8 , it is determined whether the above-mentioned characteristic information collection method is to be implemented again.

[0243] For example, if the subject's perception of the object 30 etc. hardly changes, the characteristic information collecting method is executed again. That is, based on the total information obtained in the totaling / analyzing step S6, it is determined whether the characteristic information collecting method is executed again.

[0244] Specifically, the judgment is made based on the frequency of inputting a numerical value other than "3" in the total information. When the frequency is less than a threshold value (e.g., 10%), the characteristic information collection method is implemented again. On the other hand, when the frequency is greater than a threshold value (e.g., 10%), the characteristic information collection method is terminated. The threshold value can be set arbitrarily.

[0245] For example, based on the number of types of the predetermined light L1 used in the predetermined light environment creating step S3 , it is determined whether the characteristic information collecting method is to be performed again.

[0246] The number of types of the prescribed light L1 that can be irradiated from the color lamp 20 is stored in advance, and the characteristic information collecting method is implemented until the number of implementations of the prescribed light environment creating step S3 matches the number of types of the prescribed light L1.

[0247] Specifically, when there are five kinds of prescribed light L1 that can be irradiated from the colored lamp 20, for example, if the number of times the prescribed light environment creation step S3 is implemented is less than five times, the characteristic information collection method is implemented again. On the other hand, when the number of times the light environment creation step S3 is implemented reaches five times, the characteristic information collection method is terminated. The number of kinds of prescribed light L1 that can be irradiated from the colored lamp 20 can be set arbitrarily.

[0248] (Specified light changing step S9)

[0249] When it is determined that the characteristic information collecting method is to be re-implemented, in the predetermined light changing step S9 , the irradiation light (the predetermined light L1 , the light LA) of the color lamp 20 is changed from the yellow light LAY to the magenta light LAM, for example.

[0250] Then, in the step S3 of creating the prescribed light environment, magenta light LAM or the like is irradiated toward the subject from the colored light 20. In the step S3 of creating the prescribed light environment, in order to adapt the subject to the changed prescribed light L1 (new prescribed light environment), the subject is made to stay in front of the personal computer 10 with the colored light 20 lit for more than about 1 minute (after the adaptation time has passed).

[0251] Next, the second viewed body presenting step S4 to the outputting step S7 are performed.

[0252] In the re-implementation of the characteristic information collection method, the white light environment creation step S1 and the object presentation step S2 can be omitted or re-implemented.

[0253] In the predetermined light changing step S9 , the light LA ​​may be changed from the yellow light LAY to the cyan light LAC or the green light LAG, etc. The order (priority) of the four types of light LA ​​(yellow light LAY, magenta light LAM, cyan light LAC, green light LAG) can be arbitrarily set.

[0254] Depending on the characteristics of the subject's obstacle, gray light (light LB) or gray colored light (light LBA) may be used as the predetermined light L1 irradiated from the color lamp 20 in addition to or instead of the colored light (light LA).

[0255] When the light LB and LBA are used, in the predetermined light environment creation step S3, only the color lamp 20 is set in the room H with a brightness of 0.001 to 5 cd / m 2 The brightness of the display 13 is also changed to 0.001 to 5 cd / m 2 .

[0256] When using the light LB and LBA, in order to make the subject adapt to the specified light environment (adapt to darkness), the subject is made to stand in front of the personal computer 10 with the colored lamp 20 lit for about 10 to 30 minutes (darkness adaptation time).

[0257] A person with a deviation in visual cognition function may feel that, for example, glare is suppressed when gray light (light LB) or gray colored light (light LBA) is incident on the retina R. Depending on the subject, the perception of the visual object 30 and the like may also change. When gray colored light (light LBA) is incident on the retina R, the same change in perception as when colored light (light LA) is incident may be felt.

[0258] By going through the above steps, it is possible to collect characteristic information of the subject's perception without relying on a person with professional knowledge, and to exclude the subject's subjectivity as much as possible. Furthermore, it is possible to aggregate and analyze the characteristic information of the subject's perception.

[0259] The perception of the object 30, etc. is strongly affected by the light sensitivity of the subject. When there is a deviation in light sensitivity (sensitivity to light or color, the presence or absence of dullness, strength, or fluctuation), the perception of text or three-dimensional objects, etc. is considered to be different from that of healthy people. However, the perception itself is not perceived by the person himself in most cases. However, if the perception changes, the subject can perceive it by himself (make it visible).

[0260] Therefore, the characteristic information collection method and characteristic information collection device 1 involved in the embodiment of the present invention create an environment in which the "perception" of people with deviations in visual cognitive function (light sensitivity) is prone to change, and present a visual recognition body 30 whose "perception" is prone to change after an adaptation period.

[0261] Then, "feeling characteristic information" related to the pattern and degree of change in "feeling" is collected from the subject. At this time, the degree and pattern of change in feeling are numerically converted and collected using a psychometric method (SD method, etc.).

[0262] Therefore, the "feeling characteristic information" of the subject can be objectively and quantitatively collected.

[0263] In addition, the "visual characteristics information" of the subject is aggregated / analyzed / outputted. This can provide basic data for early detection of deviations in the visual cognitive function (light sensitivity) of the subject. Therefore, it is also possible to create / implement a training method that effectively improves / corrects the deviation in the visual cognitive function of a person with deviation in the visual cognitive function (light sensitivity).

[0264] Therefore, the characteristic information collecting device 1 and the characteristic information collecting method using the same can be provided inexpensively and easily in a wide range of fields such as various industries, education, and traffic safety.

[0265] The present invention is not limited to the above-mentioned embodiment, and includes various modifications to the above-mentioned embodiment within the scope of the present invention. That is, the specific shapes and structures listed in the embodiment are only examples and can be appropriately modified.

[0266] The characteristic information collection method and characteristic information collection method of the present invention are not limited to the case of using the characteristic information collection device 1. It is sufficient as long as the viewed object 30 to 80 including the specified visual recognition element can be directly presented in front of the subject and the degree of change in the perception of the viewed object 30 to 80 in the white light environment and the specified light environment can be collected.

[0267] The characteristic information collection device 1 is not limited to a desktop personal computer 10, and a laptop personal computer or a notebook personal computer may also be used. A tablet terminal, a smart phone, or a portable terminal may also be used as the characteristic information collection device 1. The colored light 20 may also be a flash light (camera shooting light) of a tablet terminal or a smart phone.

[0268] The indoor lighting device (first optical part) 25 is not limited to a ceiling lamp, but may be a floor lamp, a table lamp, a hand-held lamp, or the like.

[0269] In the room H where natural light is blocked, white light L0 may be irradiated from the color lamp 20. That is, the color lamp 20 may function as the first optical part (light source of the white light environment creating step S1) instead of the room lighting device 25.

[0270] The white light L0 is not limited to artificial light emitted from various lighting fixtures, but may also be natural light (sunlight). For example, the personal computer 10 may be arranged in an environment where natural light enters the room from a window without using the indoor lighting device 25 or the like. In other words, the characteristic information collection device 1 may not have the indoor lighting device (first optical unit) 25.

[0271] The white light environment may be any environment in which the subject can watch the image displayed on the display 13 without hindrance (without feeling glare, etc.). In many cases, outdoor natural light (sunlight) has high brightness and is too irritating to the subject, so it is preferable to avoid it.

[0272] The colored lamp 20 (second optical part) is not limited to a table lamp, but may be a ceiling lamp or a floor lamp.

[0273] The lighting color of the indoor lighting device 25 can also be changed from white (white light L0) to yellow (prescribed light L1) to create a white light environment and a prescribed light environment respectively. In other words, the indoor lighting device 25 can also function as a second optical part (light source of the prescribed light environment creation step S3).

[0274] The predetermined light L1 is not limited to artificial light emitted from various lighting fixtures, and natural light (sunlight) may be used. For example, the room H may be made into a predetermined light environment by tinting the window glass in the room or attaching a color filter to the window glass.

[0275] Colored lens glasses may be used instead of the colored lamp 20. For example, yellow lens glasses, pink (magenta) lens glasses, sky blue (cyan) lens glasses, green lens glasses, and gray lens glasses may be used. The concentration of each color lens is preferably 10% to 50% (10F to 50F). The concentration of each color lens may also be 50% to 85% (50F to 85F).

[0276] It is also possible to overlap colored lenses of different colors and use them. It is not limited to colored lens glasses, and it can also be contact lenses, goggles, etc.

[0277] Alternatively, the light L may be irradiated from the color lamp 20 toward the subject wearing gray-lens glasses. In this way, the gray colored light LBA can be made incident on the retina R of the subject.

[0278] The second optical part may be any of a wearable optical device (glasses, etc.) and a non-wearable optical device (lamp, lighting device, etc.). Wearable optical devices and non-wearable optical devices may also exist in combination.

[0279] As the first optical part and the second optical part, the display 13 of the personal computer 10 may be used. That is, the display 13 may function as the first optical part (light source of the white light environment creating optical process S1) or the second optical part (light source of the prescribed light environment creating process S3) instead of the colored lamp 20 or the indoor lighting device 25, or in addition to the colored lamp 20 or the indoor lighting device 25.

[0280] White light L0 or predetermined light L1 is irradiated from the display 13. For example, the entire background other than the object 30 etc. displayed on the display 13 is changed from white (white light L0) to yellow etc. (prescribed light L1). For example, the central portion 13a of the display 13 is set to white (white light L0), and only the peripheral portion 13b is changed from white to yellow etc. (prescribed light L1).

[0281] The central portion 13a is a display area (area centered on the viewed object 30) that displays the viewed object 30, and the peripheral portion 13b is a display area along the frame of the display 13. The peripheral portion 13b may be the left and right edges, the upper and lower edges, or the four corners of the display 13.

[0282] The predetermined light L1 (light LA) may use, for example, red light or blue light in addition to the yellow light LAY, the magenta light LAM, the cyan light LAC, and the green light LAG.

[0283] In addition to the gray light LB or the gray colored light LBA, light obtained by cutting off light with a wavelength of 500 nm or less or light obtained by cutting off light with a wavelength of 400 nm or less (anti-glare eyeglasses) may be used.

[0284] The predetermined light L1 is not limited to being incident only on the peripheral visual field area R2 of the subject's retina R. The predetermined light L1 may be incident on the entire area of ​​the retina R (central visual field area R1, peripheral visual field area R2), or may be incident only on the central visual field area R1.

[0285] The object presenting unit is not limited to the display 13, and may be a projector, a printer 16, a 3D printer, etc. In other words, the actual objects of the objects 30 to 80 may be presented in front of the subject.

[0286] The output unit is not limited to the display 13 , and may be a printer 16 .

[0287] The case where the object 30 is presented again (second object presentation step S4) after the predetermined light environment creation step S3 is described, but it is not limited to this. The white light environment may be changed to the predetermined light environment in the object presentation step S2. For example, the colored light 20 may be turned on while the subject is looking at the object 70 to transfer from the white light environment to the predetermined light environment.

[0288] The output step S7 does not necessarily need to be performed after the totaling / analyzing step S6. In the characteristic information collection method using a plurality of predetermined lights L1, the totaling / analyzing step S6 may be performed a plurality of times, and the output step S7 may be performed only once at the end.

[0289] Description of Reference Numerals

[0290] 1: characteristic information collection device, 10: personal computer, 11: processing unit (collection unit, total analysis unit), 12: storage unit, 13: display (viewed object presentation unit, output unit, first optical unit, second optical unit), 13a: center unit, 13b: periphery, 14a: keyboard (information receiving unit), 14b: mouse (information receiving unit), 16: printer, 17: characteristic information collection program, 18: viewed object database, 20: color lamp (second optical unit, first optical unit), 25: indoor lighting device (first optical unit), : optical part, second optical part), 30: object of view, 31: bosom (specified visual recognition element), 32: opening (specified visual recognition element), 33: contact point (specified visual recognition element), 34: apex (specified visual recognition element), 35: bottom point (specified visual recognition element), 36: crotch (specified visual recognition element), 40: object of view, 41: deformation (specified visual recognition element), 50: object of view, 51: defective part (specified visual recognition element), 60: object of view, 61: defective part (specified visual recognition element) , 70: object of view, 71: golf ball (object of view), 72: concave and convex (specified visual recognition element), 73: blinds (object of view), 74: shadow (specified visual recognition element), 80: three-dimensional object (object of view), 81: texture (surface texture, specified visual recognition element), L0: white light, L1: specified light, LA: colored light (specified light), LAY: yellow light (specified light), LAM: magenta light (specified light), LAC: cyan light (specified light), LAG: green light ( Specified light), LB: gray light (specified light), LBA: gray colored light (specified light), LBY: gray-yellow light (specified light), LBM: gray-magenta light (specified light), LBC: gray-cyan light (specified light), LBG: gray-green light (specified light), R: retina, R1: central visual field area, R2: peripheral visual field area, VL: L visual cell (long cone cell), VM: M visual cell (middle cone cell), VS: S visual cell (short cone cell), VR: R visual cell (rod cell), H: indoor, Q: answer form.

Claims

1. A method for collecting characteristic information, characterized in that: have: A first object presenting step of presenting one or more objects including predetermined visual recognition elements to the subject in a white light environment where white light is incident on the subject's retina; a step of creating a prescribed light environment, creating a prescribed light environment in which prescribed light different from the white light in at least one of spectral distribution and brightness is incident on the retina of the subject; a second object presenting step of presenting the object to the subject again in the prescribed light environment; an information receiving step of receiving characteristic information related to the visual perception of the object in the first object presenting step and the second object presenting step from the object being examined; as well as The collecting step collects the characteristic information received from the subject.

2. The characteristic information collection method according to claim 1, wherein: There is a summarizing step of summarizing the information obtained in the collecting step.

3. The characteristic information collection method according to claim 2, wherein: An analysis step is provided for creating an analysis table based on the information obtained in the aggregation step.

4. The characteristic information collection method according to claim 2, wherein: In the information receiving step and the collecting step, the characteristic information is quantified using a Likert scale in a multiple-choice answer method.

5. The characteristic information collection method according to claim 4, wherein: In the multi-level answer method, the SD method among the psychometric methods is used.

6. The characteristic information collection method according to claim 1, wherein: The predetermined light is yellow light having a dominant wavelength of 570 nm to 590 nm.

7. The characteristic information collection method according to claim 1, wherein: The predetermined light is magenta light having a complementary color dominant wavelength of 500 nm to 570 nm.

8. The characteristic information collection method according to claim 1, wherein: The predetermined light is cyan light having a dominant wavelength of 470 nm to 530 nm.

9. The characteristic information collection method according to claim 1, wherein: The predetermined light is green light having a dominant wavelength of 500 nm to 570 nm.

10. The characteristic information collection method according to claim 1, wherein: The brightness of the specified light is 0.001 to 5 cd / m 2 .

11. The characteristic information collection method according to claim 1, wherein: In the predetermined light environment creating step, the predetermined light is incident on the peripheral visual field area of ​​the retina.

12. The characteristic information collection method according to claim 1, wherein: The object to be viewed is text, numbers or symbols, The predetermined visual recognition element is any one or more of the chest, opening, connection point, top point, bottom point and crotch of the character, number or symbol.

13. The characteristic information collection method according to claim 1, wherein: The object to be viewed is text, numbers or symbols displayed on the surface. The predetermined visual recognition element is a deformation of the character, the number or the symbol.

14. The characteristic information collection method according to claim 1, wherein: The object to be viewed is a digitally displayed text, number or symbol, The predetermined visual recognition element is a missing portion of the letter, the number, or the symbol.

15. The characteristic information collection method according to claim 1, wherein: The object to be viewed is text, numbers or symbols displayed in a dot matrix. The predetermined visual recognition element is a missing portion of the letter, the number, or the symbol.

16. The characteristic information collection method according to claim 1, wherein: The viewed object is a three-dimensional object. The predetermined visual recognition element is the concavity and convexity of the surface of the three-dimensional object.

17. The characteristic information collection method according to claim 1, wherein: The viewed object is a three-dimensional object. The predetermined visual recognition element is a texture of a surface of the three-dimensional object.

18. The characteristic information collection method according to claim 1, wherein: At least one of the spectral distribution and the brightness of the prescribed light is changed, and the prescribed light environment creation step to the collection step are performed again.

19. A characteristic information collection device, characterized in that: have: a first optical part that creates a white light environment in which white light is incident on the retina of the subject; a second optical part that creates a prescribed light environment in which prescribed light different from the white light in at least one of spectral distribution and brightness is incident on the retina of the subject; A viewed object presenting unit, which presents one or more viewed objects including a predetermined visual recognition element to the subject in the white light environment, and then presents the viewed object to the subject again in the predetermined light environment; an information receiving unit that receives characteristic information related to the perception of the viewed object in the white light environment and the predetermined light environment from the subject; as well as A collecting unit collects the characteristic information received by the information receiving unit.

20. The characteristic information collection device according to claim 19, wherein: A total analysis unit is provided for performing various calculation processes based on the collected information obtained from the collecting unit.

21. The characteristic information collection device according to claim 20, wherein: An output unit is provided for outputting the results of the various arithmetic operations.

22. The characteristic information collection device according to claim 19, wherein: The viewed object presenting unit is a display.

23. The characteristic information collection device according to claim 19, wherein: The second optical part is glasses, goggles, a lamp or a lighting device.

24. The characteristic information collection device according to claim 19, wherein: The second optical part is a display.

25. The characteristic information collection device according to claim 19, wherein: The first optical part is a lamp or a lighting device.

26. The characteristic information collection device according to claim 19, wherein: The first optical part is a display.

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