JP2003126036A - Equipment for eyesight examination, device for eyesight examination, and method of eyesight examination - Google Patents

Abstract

PROBLEM TO BE SOLVED: To process eyesight examinations for a large number of subjects concurrently and to reduce time for the examinations, to examine dynamic visual acuity accurately regardless of superiority of the subjects' reflexes, to examine mesopic visual acuity, to examine an adjusting function to brightness with an integrated device, and to adjust brightness of the environment for the examination and to perform the eyesight examination with high accuracy. SOLUTION: Equipment for the eyesight examination comprises a device 1 for eyesight examination which transmits examination image data to a plurality of the subjects U, receives response signals sent by the subjects U, and examines eyesight of the subjects U, a distributor 2 which distributes the examination image data transmitted from the device 1 for eyesight examination to a plurality of examination image data, a plurality of face mount displays 3 which are attachable in front of the eyes of the subjects U and can display the examination image data to the subject U as an examination image, a plurality of response buttons 4 which output response signals when the button is pushed by the subject U, and an input collecting device 5 which collects a plurality of response signals transmitted from each response button 4.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a visual inspection technique.

[0002]

2. Description of the Related Art A conventional visual inspection apparatus is provided with a window large enough to allow one subject to look into it. You can check your eyesight. Further, in the visual acuity test by the conventional visual inspection device, the test subject recognizes the moving inspection image from the display time at which the inspection image is displayed by the visual inspection device, presses the push button, and the reaction output from this push button. The time until the response time when the signal is returned to the visual inspection device is used as the dynamic visual acuity index. On the other hand, the test of the brightness adaptation function of the subject is performed by a brightness adaptation test device which is a device different from a visual test device for testing static visual acuity and dynamic visual acuity. Like the visual inspection device, this brightness adaptation inspection device is also designed so that each subject can inspect it one by one.

[0003]

However, the conventional visual inspection techniques have the following problems (i) to (v). (i) With respect to the conventional static visual acuity test, dynamic visual acuity test, and brightness adaptation test, it is only possible to sequentially perform the test on each subject. Therefore, when a visual inspection is performed on a large number of subjects, for example, a long time is wasted in visual inspections of drivers, qualification medical examinations of groups and medical facilities, and the like. (ii) Since the conventional visual acuity index is the time between the display time and the response time, the dynamic visual acuity index includes the recognition time at which the subject recognizes the inspection image and the time from when the test image is pressed until the push button is pressed Exercise time and. The latter exercise time varies greatly among individuals due to the superiority or inferiority of the reflexes of the subject. For this reason, the dynamic visual acuity may fluctuate depending on the superiority or inferiority of the reflexes of the subject, and the test cannot be performed accurately. (iii) Since there are many car accidents in the evening and at night, there is a need for a visual inspection device that can test mesoscopic vision for seeing objects in twilight, but there is no device that can test mesopic vision of a subject. . (iv) The visual inspection device for inspecting static visual acuity and dynamic visual acuity is not an integrated unit with the brightness adaptation inspection device for inspecting the brightness adaptation function of the subject but is a separate device. For this reason, it was necessary to manage both devices, which was troublesome. (v) The inspection accuracy of the visual inspection depends on the brightness of the inspection environment. Since no conventional visual inspection device has a light source control function capable of adjusting the brightness of the inspection environment, the inspection result is not accurate because it is affected by changes in the brightness of the environment.

In view of such circumstances, the present invention (1) can perform a visual inspection on a large number of subjects in parallel, can shorten the examination time, and (2) accurately evaluates the visual acuity of a subject regardless of the superiority or inferiority of the reflexes of the subjects. , (3) mesopic test can be performed, (4) brightness adaptation function can be tested by an integrated device, (5) brightness of the test environment can be adjusted, and high test accuracy It is an object of the present invention to provide a visual inspection technique capable of performing visual inspection.

[0005]

The visual inspection equipment according to claim 1 transmits inspection image data to be shown to a plurality of subjects as inspection images, receives reaction signals returned from each subject, and receives each subject. A visual inspection device for inspecting
A distributor for distributing the inspection image data transmitted from the visual inspection device into a plurality of inspection image data, and a plurality of which can be mounted in front of the subject's eyes and can display the inspection image data to the subject as an inspection image. Face mount
A display, a plurality of reaction buttons that output a reaction signal when a button is pressed by the subject, and an input aggregation device that aggregates the plurality of reaction signals transmitted from the reaction buttons and transmits them to the visual inspection device. It is characterized by consisting of. The visual inspection equipment according to claim 2 is, in the invention according to claim 1, wearable in front of a subject, detects the brightness of an inspection image displayed on the face mount display, and outputs brightness data. A brightness sensor to be transmitted to the visual inspection device, set up in the visual inspection device, in accordance with the brightness data of the brightness sensor,
And a brightness adjusting section for adjusting the brightness of the inspection image data to be transmitted to the face mount display to a desired brightness. The visual inspection equipment according to claim 3 transmits visual inspection image data to be shown as an inspection image to a plurality of subjects, receives a reaction signal returned from each subject, and inspects the visual sense of each subject. , A screen for showing the inspection image to a plurality of subjects, a projector for displaying the inspection image data transmitted from the visual inspection device on the screen as an inspection image, and a reaction signal is output when the subject presses a button. A plurality of reaction buttons and an input aggregating device that aggregates a plurality of reaction signals transmitted from the respective reaction buttons and transmits them to the visual inspection device. The visual inspection facility according to claim 4 is the invention according to claim 3,
A plurality of distance sensors that can be attached to the subject and detect the distance from the screen, and an inspection position shift that is set up in the visual inspection device and corrects the inspection result in accordance with the distance data detected by the distance sensor. And a correction unit. The visual inspection equipment according to claim 5 is, in the invention according to claim 3 or 4, provided with an illumination for illuminating the screen, a light source control device for adjusting the brightness of the illumination, and provided in front of the screen to measure the illuminance. And a brightness control unit that is set up in the visual inspection device and that sends a brightness adjustment command to the light source control device in accordance with the illuminance measured by the illuminance sensor. . The visual inspection facility according to claim 6 is characterized in that, in the invention according to claim 1, 2, 3, 4 or 5, a reflex nerve inspection unit for inspecting a reflex nerve of a subject is set up in the visual inspection device. To do. The visual inspection facility according to claim 7 includes:
In the invention described in 4, 5, or 6, a visual acuity test unit for testing the visual acuity of the subject is set up in the visual inspection device, and the visual acuity test unit displays the examination image and then the subject. It is characterized in that a value obtained by subtracting, as a reflex nerve, an exercise time from when the subject recognizes the inspection image to when the push button is pressed is used as a moving visual acuity index from the response time until the reaction signal is returned by. The visual inspection facility according to claim 8 is defined by claim 1, 2, 3, 4, 5, and 6.
Alternatively, in the invention described in the paragraph 7, a mesopic acuity test unit for inspecting a mesopic acuity of a subject is set up in the visual inspection device. The visual inspection equipment according to claim 9 is the invention according to any one of claims 1, 2, 3, 4, 5, 6, 7 or 8, wherein the visual inspection device is provided with a brightness for inspecting a subject's brightness adaptation function. The feature is that the conformance inspection unit is set up. A visual inspection device according to a tenth aspect is a computer, and is provided with the visual inspection device according to the sixth, seventh, eighth, or ninth aspect. The visual inspection method according to claim 11, wherein the inspection image data is distributed to a plurality of inspection image data, each inspection image data is displayed as an inspection image on a plurality of test subjects, and reaction signals transmitted by the plurality of test subjects are aggregated. The inspection image data and the reaction signal are collated for each subject, and the visual inspections of a plurality of subjects are processed in parallel. Claim 1
In the visual inspection method of 2, the inspection image is displayed on a screen so that a plurality of subjects can be seen, reaction signals transmitted by the plurality of subjects are aggregated, and the inspection image data and the reaction signal are collated for each subject. Then, the visual inspection of a plurality of subjects is processed in parallel.

According to the first aspect of the invention, the inspection image data transmitted from the visual inspection device can be distributed by the distributor so that the inspection images can be simultaneously displayed on the plurality of face mount displays. Therefore, the test image can be shown to the subject wearing each face mount display. When each subject presses a reaction button, a plurality of reaction signals output from each reaction button are aggregated by the input aggregation device and transmitted to the visual inspection device. Therefore, the reaction signals of the plurality of subjects are transmitted to the visual inspection device. In the visual inspection device, the inspection image data sent to each subject and the reaction signal sent from the subject are collated to perform the visual inspection of the subject. Therefore, even if the visual inspection is processed in parallel for a large number of subjects,
Inspection time can be shortened. According to the invention of claim 2, the brightness of the inspection image data to be transmitted to the face mount display can be adjusted to a desired brightness by the brightness adjusting unit in accordance with the brightness data of the brightness sensor. it can. Since the brightness data is data in which the brightness of the inspection image displayed on the face mount display is detected by the brightness sensor, the brightness of the inspection image displayed on the face mount display is set to the desired brightness. Can be adjusted to According to the invention of claim 3, the inspection image data is transmitted from the visual inspection device to the projector and the inspection image is displayed on the screen by the projector, so that the inspection image can be shown to all the subjects. When each subject presses the reaction button, the reaction signal is transmitted from the reaction button to the visual inspection device. Therefore, the reaction signals of the plurality of subjects are transmitted to the visual inspection device. In the visual inspection device, the inspection image data sent to each subject and the reaction signal sent from the subject are collated to perform the visual inspection of the subject. Therefore, even if the visual inspection is performed in parallel for a large number of test subjects, the inspection time can be shortened. According to the fourth aspect of the present invention, the inspection result can be corrected by the inspection position shift correction unit according to the distance between the distance sensor and the screen. Therefore, the inspection result can be corrected according to the distance between the inspection position of the subject wearing the distance sensor and the screen. According to the invention of claim 5, the brightness control unit of the visual inspection position can control the brightness of the illumination in accordance with the illuminance of the screen measured by the illuminometer sensor. According to the invention of claim 6, the reflexes of the subject can be inspected by the reflexes inspection section. According to the invention of claim 7, since the dynamic visual acuity index is the time obtained by subtracting the exercise time from when the subject recognizes the examination image to when the push button is pressed, the dynamic visual acuity is determined regardless of the superiority or inferiority of the reflexes of the subject. Can be accurately inspected. According to the invention of claim 8, the mesopic acuity inspection section can inspect the mesopic acuity of the subject. According to the invention of claim 9, the brightness adaptation function can be inspected by an integrated device. Claim 1
According to the invention of 0, the visual sense of the subject can be inspected. According to the invention of claim 11, since the inspection image data and the reaction signal are collated for each subject and the visual inspections of a plurality of subjects can be processed in parallel, the visual inspection time can be shortened. According to the twelfth aspect of the present invention, the inspection image data and the reaction signal are collated for each subject, and the visual inspections of a plurality of subjects can be processed in parallel. Therefore, the visual inspection time can be shortened.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of the visual inspection equipment of the first embodiment. As shown in the figure, the visual inspection equipment of the first embodiment includes a visual inspection device 1, a distributor 2, a plurality of face mount displays 3, a plurality of brightness sensors 3B, a plurality of reaction buttons 4 and an input aggregation. It is composed of the device 5.

The visual inspection apparatus 1 includes a visual inspection system 10
The computer will be described in detail later. The distributor 2 is a device for distributing the inspection image data transmitted from the visual inspection device 1 into a plurality of inspection image data. As the distributor 2, for example, a video distribution device may be used. The face mount display 3 is a device that can be mounted in front of the subject's eyes and can display the examination image data as an examination image on the subject. face·
As the mount display 3, for example, (trade name) Eye-Trek FMD-700 manufactured by OLYMPUS may be used. The brightness sensor 3B is a sensor that detects the brightness of the inspection image displayed on the face mount display 3 and transmits the brightness data to the visual inspection device 1.
As the brightness sensor 3B, for example, RPM-075PT manufactured by ROHM (trade name) may be used. The reaction button 4 is a device that outputs a reaction signal when the button is pressed by the subject. As the reaction button 4, for example, a general-purpose reaction button (standard: 1A15V) manufactured by National Corp. may be used. The input aggregating device 5 is a device that aggregates a plurality of reaction signals transmitted from the reaction button 4 and transmits them to the visual inspection device 1. As the input aggregation device 5, for example, (trade name) IS-500 manufactured by Toyo Denshi Kogyo Co., Ltd. may be used. In addition, the face mount display 3,
The brightness sensor 3B and the reaction button 4 may be prepared for the number of test subjects U whose eyes are to be inspected.

FIG. 2 is an event trace diagram of the visual inspection facility of the first embodiment. As shown in the figure, the visual inspection device 1
The inspection image data transmitted from the device can be distributed by the distributor 2 and the inspection images can be simultaneously displayed on the plurality of face mount displays 3. For this reason,
The test image can be shown to the subject U wearing each face mount display 3. When each subject U presses the reaction button 4, a plurality of reaction signals output from each reaction button 4 are aggregated by the input aggregation device 5 and transmitted to the visual inspection device 1. Therefore, the reaction signals of the plurality of subjects U are transmitted to the visual inspection device 1. In the visual inspection device 1, the inspection image data sent to each subject and the reaction signal sent from the subject are collated, and the visual inspection of the subject is performed.

Next, the visual inspection device 1 will be described in detail. FIG. 3 is a system configuration diagram of the visual inspection device 10.
As shown in the figure, the visual inspection device 1 is a computer, and the visual inspection system 10 is stored therein. The visual inspection system 10 includes a database for storing and managing data and inspection programs 12 to 16 for processing the data.

First, the database of the visual inspection system 10 will be described. Figure 4 shows databases DB2, DB11, DB12, D
It is explanatory drawing of B31-DB35. Figure 5 shows databases DB4 to D
It is explanatory drawing of B10. As shown in FIG. 4, the visual inspection system 10 includes databases DB11, DB12, DB2, DB31,
DB32, DB33, DB34, DB35, DB4, DB5, DB6, DB7, DB8
, DB9 and DB10. Environmental brightness DB11,
It is a database for storing and managing brightness data for each subject ID. As the brightness data, time, brightness, etc. may be stored. The subject position DB 12 is a database for storing and managing position data for each subject ID. As position data, D1 and D
2 may be stored. Correction of test results DB2 is a database for storing and managing standard brightness data and standard position data for each subject ID. Brightness and visual acuity may be stored as the standard brightness data. The position, visual acuity, etc. may be stored as the standard position data.

The reflex nerve aging characteristic DB 31 is a database for storing and managing reflex nerve aging characteristic data for each subject ID. As the reflex nerve aging characteristic data, the age and average reaction time of the subject may be stored. The static visual aging characteristics DB 32 is a database for storing and managing visual aging characteristics data for each subject ID. The age and average static visual acuity of the subject may be stored as the visual aging characteristic data. The dynamic visual acuity aging characteristic DB 33 is a database for storing and managing visual acuity aging characteristic data for each subject ID. As the visual aging characteristics data, the age of the subject and the average dynamic visual acuity may be stored. Brightness forward stress aging characteristics DB34,
This is a database for storing and managing visual acuity aging characteristic data for each subject ID. The age and average brightness forward stress of the subject may be stored as the visual aging characteristic data. The mesopic vision aging characteristic DB 35 is a database for storing and managing mesopic vision aging characteristic data for each subject ID. The age of the subject and the average mesopic acuity may be stored as the mesopic vision aging characteristic data.

As shown in FIG. 5, the reflex nerve measurement result DB4
Is a database for storing and managing the reflection time for each subject ID. The static visual acuity calculation condition DB5 is a database for storing and managing visual acuity aging characteristic data for each subject ID. As the visual aging characteristic data, the stimulus number, the distance between the subject and the index, the stimulus size, etc. may be stored. Static visual acuity measurement result DB6 is the subject ID
It is a database for storing and managing static visual acuity for each.

The dynamic visual acuity measurement result DB7 is a database for storing and managing the dynamic visual acuity for each subject ID. The mesopic visual acuity calculation condition DB8 is a database for storing and managing mesopic visual acuity calculation condition data for each subject ID. As the mesopic acuity calculation condition data, the stimulus number, the distance between the subject and the index, the stimulus size, the brightness, etc. may be stored.

The mesopic visual acuity measurement result DB 9 is a database for storing and managing mesopic visual acuity for each subject ID. The brightness adaptation measurement result DB 10 is a database for storing and managing the brightness adaptation stress for each subject ID.

FIG. 6 is a flowchart of the visual inspection process. As shown in the figure, the inspection program data of the visual inspection system 10 is transferred to the distributor 2 by the inspection program data 12 to 16.
Multiple face mount displays via
Sent to. Each face mount display 3
The internal brightness of the sensor is measured by the brightness sensor 3B (S
1), the measurement data is recorded in the environmental brightness DB11 (S2). Then, various visual inspection processes are executed by the inspection programs 12 to 16 (S3). This inspection program 12-1
Details of 6 will be described later. Then, the correction program corrects the inspection result using the data in the correction DB2 of the inspection result (S4). When all inspections are completed (S
5), the corrected result and the test result are analyzed by the reflex nerve aging characteristic DB31, the static visual aging characteristic DB32 or the dynamic visual aging characteristic DB33 (S6). Finally, the output program displays the inspection results on the printer or monitor.
(S7).

Next, the inspection programs 11 to 16 will be described. As shown in FIG. 3 again, the visual inspection system 10 includes a brightness adjustment program 1 as an inspection program.
1, a reflex nerve inspection program 12, a visual acuity inspection program 13, a dynamic visual acuity inspection program 14, a mesopic visual acuity inspection program 15, and a brightness forward stress inspection program 16 are set up.

First, the brightness adjusting program 11 will be described. The brightness adjustment program 11 is a program for adjusting the brightness of the inspection image data to be transmitted to the face mount display 3 to a desired brightness in accordance with the brightness data of the brightness sensor 3B. For this reason,
By the brightness adjustment program 11, the brightness sensor 3B
The brightness of the inspection image data to be transmitted to the face mount display 3 can be adjusted to a desired brightness in accordance with the brightness data of 1. Since the brightness data is data in which the brightness of the inspection image displayed on the face mount display 3 is detected by the brightness sensor 3B, the brightness of the inspection image displayed on the face mount display 3 is calculated. It can be adjusted to the desired brightness.

Next, the reflexes examination program 12 will be described. FIG. 7 is a flowchart of the reflexes examination process. As shown in FIG.
Is a program that collates the inspection image data transmitted to the subject U with the reaction signal transmitted from the subject U and outputs a reflex nerve. When measuring the reflexes, the inspection image data is transmitted to the distributor 2, and the inspection image data is transmitted to the face mount display 3 via the distributor 2 to reflex nerve stimulation to the subject U. For example, C
It is presented as a Randle ring inspection image (S11). Subject U
When the direction of the opening of the C Randle ring is known, when the reaction button 4 is pressed, the reaction signal of the reaction button 4 is sent to the visual inspection system 10 of the visual inspection device 1 via the input aggregation device 5.
Sent to. In the visual inspection system 10, the reflexes inspection program 12 determines whether or not the judgment of the subject U is correct (S12), and if correct, the reaction time is recorded in the database (S13). Not recorded. The above steps (S11) to (S13) are repeated until the number of measurements exceeds the set number (S14). When the number of times of measurement does not exceed the set number of times, when the measurement of all the subjects U is completed (S15), step S11 is executed again. When the measurement of all the subjects U is not completed yet, when the set time ends (S16), step S11 is executed again. Therefore, it is possible to prevent the measurement from being interrupted if there is a person who does not press the reaction button forever.

Next, the aging effect of reflexes is calculated,
The reflexes measurement result is stored in DB4 (S17). If all tests are not completed (S18), other tests are executed, and if completed, the reflex nerve aging characteristics data of reflex nerve aging characteristics DB31 and static visual acuity addition of static visual acuity characteristics DB32 are added. Based on age characteristic data, dynamic visual aging characteristic data of dynamic eye aging characteristic DB33, brightness forward stress aging characteristic data of brightness forward stress aging characteristic DB34, mesopic visual aging characteristic data of mesopic visual aging characteristic DB35 All test results are analyzed (S19). Finally, the inspection result is output to the monitor or printer (S2
0).

Next, the static visual acuity test program 13 will be described. FIG. 8 is a flowchart of the static visual acuity test process. As shown in FIG.
Is a program that collates the inspection image transmitted to the subject U with the reaction signal transmitted from the subject U and outputs the static visual acuity. When inspecting static visual acuity, the visual acuity test program 13 transmits the test image data to the distributor 2, and the test image data is transmitted to the subject U by the face mount display 3 such as C Randle ring. Presented as an inspection image (S21). When the subject U presses the reaction button 4, the reaction button 4
Of the reaction signal of the visual inspection device 1 via the input aggregation device 5.
Is transmitted to the visual inspection system 10. In the visual inspection system 10, the visual acuity test program 13 determines whether or not the determination of the subject U is correct (S22), and if the determination is correct, the number of the static visual acuity stimulus is recorded (S23).
Until the number of measurements exceeds the set number, the above step (S21)
~ (S23) is repeated (S24). If the number of measurements does not exceed the set number, the measurement of all subjects U is completed (S
25), and step S21 is executed again. When the measurement of all the subjects U is not completed yet, when the set time ends (S26), step S21 is executed again. Therefore, it is possible to prevent the measurement from being interrupted if there is a person who does not press the reaction button forever.

Next, the static visual acuity is calculated from the static visual acuity calculation condition DB5 and the examination result, and stored in the static visual acuity measurement result DB6 (S27). If all inspections are not completed (S2
8), if other tests are executed and completed, reflex nerve aging characteristic data of reflex nerve aging characteristic DB31, static visual aging characteristic data of static visual aging characteristic DB32, dynamic visual aging characteristic DB33 All the test results are analyzed by the dynamic visual aging characteristics data, the brightness forward stress aging characteristics DB34 brightness forward stress course characteristic data, and the mesopic acuity aging characteristics DB35 mesopic aging characteristics data (S29). . Finally, the inspection result is output to the monitor or printer (S30).

Next, the dynamic visual acuity test program 14 will be described. FIG. 9 is a flowchart of the dynamic visual acuity test process. As shown in the figure, the dynamic visual acuity test program 14
Is a program that collates the inspection image data transmitted to the subject U with the reaction signal transmitted from the subject U and outputs the dynamic visual acuity. When inspecting the dynamic visual acuity, the dynamic visual acuity inspection program 14 transmits the inspection image data to the distributor 2. The inspection image data is transmitted to the subject U by the face mount display 3, and the visual acuity stimulation, for example, at a constant speed. It is presented as an inspection image that moves in (S31). When the reaction button 4 is pressed by the subject U, the reaction signal of the reaction button 4 is transmitted to the visual inspection system 10 of the visual inspection device 1 via the input aggregation device 5. In the visual inspection system 10, the dynamic visual acuity test program 14 determines whether or not the judgment of the subject U is correct (S32), and if correct, the reaction time is recorded in the database (S33). Is not recorded. Repeat the above steps until the number of measurements exceeds the set number.
(S31) to (S33) are repeated (S34). When the number of measurements does not exceed the set number, when the measurement of all the subjects U is completed (S35), step S31 is executed again. When the measurement of all the subjects U is not completed yet, when the set time ends (S36), step S31 is executed again. Therefore, it is possible to prevent the measurement from being interrupted if there is a person who does not press the reaction button forever.

Next, the dynamic visual acuity is calculated from the reflex nerve measurement result DB4 and the test result and stored in the dynamic visual acuity measurement result DB7 (S37). If all inspections are not completed (S3
8), if other tests are executed and completed, reflex nerve aging characteristic data of reflex nerve aging characteristic DB31, static visual aging characteristic data of static visual aging characteristic DB32, dynamic visual aging characteristic DB33 All test results are analyzed by the dynamic visual aging characteristic data of, the brightness forward stress aging characteristic DB34 brightness forward stress course characteristic data, and the mesopic visual aging characteristic DB35 mesopic visual aging characteristic data (S39). . Finally, the inspection result is output to the monitor or printer (S40).

Next, the mesopic vision test program 15 will be described. FIG. 10 is a flowchart of the mesopic vision test process. As shown in the figure, the mesopic vision test program 15
Is a program that collates the inspection image data transmitted to the subject U with the reaction signal transmitted from the subject U and outputs mesopic vision. When examining mesopic vision, the examination image data is transmitted to the distributor 2 by the twilight vision examination program 15, and the examination image data is transmitted to the subject U by the face mount display 3 such as a dim examination. An image is presented (S41). When the subject U presses the reaction button 4, the reaction button 4
Of the reaction signal of the visual inspection device 1 via the input aggregation device 5.
Is transmitted to the visual inspection system 10. In the visual inspection system 10, the dusk visual acuity test program 15 judges whether or not the judgment of the subject U is correct (S42), and if the judgment is correct, the number of the mesopic vision stimulus is recorded (S43). Until the number of measurements exceeds the set number of times, start from step (S41)
(S43) is repeated (S44). If the number of measurements does not exceed the set number of times, the measurement of all subjects U is completed (S4
5), Step S41 is executed again. When the measurement of all the subjects U is not completed yet, when the set time ends (S46), step S41 is executed again. Therefore, it is possible to prevent the measurement from being interrupted if there is a person who does not press the reaction button forever.

Next, the mesopic acuity is calculated from the mesopic acuity calculation condition DB8 and the examination result, and is stored in the mesopic acuity measurement result DB9 (S47). If all inspections are not completed (S4
8), if other tests are executed and completed, reflex nerve aging characteristic data of reflex nerve aging characteristic DB31, static visual aging characteristic data of static visual aging characteristic DB32, dynamic visual aging characteristic DB33 All the test results are analyzed by the dynamic visual aging characteristic data, the brightness forward stress aging characteristic DB34 brightness forward stress process characteristic data, and the mesopic visual aging characteristic DB35 mesopic aging characteristic data (S49). . Finally, the inspection result is output to the monitor or printer (S50).

Next, the brightness forward stress inspection program 16
Will be explained. FIG. 11 is a flowchart of the brightness forward stress inspection process. As shown in the figure, the brightness forward stress inspection program 16 is a program that collates the inspection image data transmitted to the subject U with the reaction signal transmitted from the subject U, and outputs the forward stress. In the case of inspecting the brightness forward stress, the inspection image data is transmitted to the distributor 2 by the brightness forward stress inspection program 16, and the inspection image data is first subjected to the photopic stimulation by the face mount display 3. Presented (S51). Photopic stimulation is presented until the acclimation time exceeds the set time. The subject U is presented with a stimulus in which, for example, a dark C Randle ring image gradually becomes brighter (S61). When the reaction button 4 is pressed by the subject U, the reaction signal of the reaction button 4 passes through the input aggregation device 5 and the visual inspection system 1 of the visual inspection device 1
Sent to 0. In the visual inspection system 10, the brightness forward stress inspection program 16 determines whether or not the judgment of the subject U is correct (S62), and if correct, the reaction time is recorded in the database (S63). Reaction times are not recorded. The above steps (S61) to (S63) are repeated until the number of measurements exceeds the set number (S6
Four). When the number of times of measurement does not exceed the set number of times, when the measurement of all the subjects U is completed (S65), step S61 is executed again. When the measurement of all the subjects U is not completed yet, when the set time ends (S66), step S61 is executed again. Therefore, it is possible to prevent the measurement from being interrupted if there is a person who does not press the reaction button forever.

Next, the brightness forward stress is calculated by the reflex nerve result of the reflex nerve measurement result DB4 and the adaptation test result,
It is stored in the brightness adaptation measurement result DB10 (S57). If all tests are not completed (S68), other tests are executed, and if completed, reflex nerve aging characteristics data of reflexes aging characteristics DB31, static visual acuity addition of static eyesight aging characteristics DB32. Age characteristics data, dynamic visual aging characteristics DB33 dynamic vision aging characteristics data, brightness forward stress aging characteristics DB34 brightness forward stress course characteristic data, mesopic vision aging characteristics DB35 mesopic vision aging characteristics data all The inspection result of is analyzed (S69). Finally, the inspection result is output to the monitor or printer (S7
0).

As shown in FIG. 2, according to the visual inspection equipment of the present embodiment, the inspection image data transmitted from the visual inspection device 1 is distributed by the distributor 2, and a plurality of face mount displays 3 are provided. The inspection image can be displayed at the same time. Because of this, each face mount
The test image can be shown to the subject U who wears the display 3. When each subject U presses the reaction button 4, a plurality of reaction signals output from each reaction button 4 are aggregated by the input aggregation device 5 and transmitted to the visual inspection device 1. Therefore, the reaction signals of the plurality of subjects U are transmitted to the visual inspection device 1. In the visual inspection device 1, the inspection image data sent to each subject U and the reaction signal sent from the subject are collated, and the visual inspection of the subject U is performed.
Therefore, the inspection time can be shortened even if the visual inspection is performed in parallel for a large number of subjects U.

Further, the brightness adjusting program 11 can adjust the brightness of the inspection image data to be transmitted to the face mount display 3 to a desired brightness in accordance with the brightness data of the brightness sensor 3B. . Since the brightness data is data in which the brightness of the inspection image displayed on the face mount display 3 is detected by the brightness sensor 3B, the brightness of the inspection image displayed on the face mount display 3 is calculated. It can be adjusted to the desired brightness.

Next, the visual inspection equipment of the second embodiment will be described. FIG. 12 is a schematic configuration diagram of the visual inspection equipment of the second embodiment. As shown in the figure, the visual inspection equipment of the second embodiment comprises a visual inspection device 1β, a projector 6, a screen 7, a plurality of reaction buttons 4, an input aggregating device 5, and an illuminance adjuster 30. .

As shown in FIG. 13, since the inspection image data is transmitted from the visual inspection device 1β to the projector 6 and the inspection image is displayed on the screen 7 by the projector 6, the inspection image is shown to all the subjects U. You can When each subject U presses the reaction button 4, a reaction signal is transmitted from the reaction button 4 to the visual inspection device 1β. Therefore, the reaction signals of the plurality of subjects U are transmitted to the visual inspection device 1β. In the visual inspection device 1β, the inspection image data sent to each subject U and the reaction signal sent from the subject U are collated to perform the visual inspection of the subject.

The reaction button 4 and the input aggregating device 5 in the visual inspection equipment of the second embodiment are substantially the same as the reaction button 4 and the input aggregating device 5 in the visual inspection equipment of the first embodiment. Therefore, the visual inspection system 10
β, projector 6, screen 7 and illuminance control unit 3
3 will be described.

FIG. 14 is a system configuration diagram of the visual inspection system 10β. As shown in the figure, the visual inspection device 1β
Is a computer in which the visual inspection system 10β is stored. The visual inspection system 10β includes a database for storing and managing data and inspection programs 11 to 17 for processing the data.

The database and the inspection programs 11 to 16 of the visual inspection system 10β are substantially the same as the database and the inspection programs 11 to 16 of the visual inspection system 10 described above.

The inspection position correction program 17 will be described. FIG. 15 is a diagram illustrating the principle of inspection position correction. As shown in the figure, the inspection position correction program 17 corrects the inspection result according to the position where the subject U stands. For example, T in the figure is the size of the visual acuity test stimulus (the length in the horizontal axis), and the subjects U ₁₁ in the first and second columns,
The vertical distance between U ₂₁ and the screen 7 is D ₁₁ , D ₁₂ respectively.
And the distance d ₁₁ between the subject U ₁₁ and the test stimulus. The visual acuity is calculated by the viewing angle when the test stimulus is viewed from the subject. The viewing angles α ₁₃ and α ₁₁ when the subjects U ₁₃ and U ₁₁ observe the examination stimulus T using the trigonometric function are calculated by the following formulas, and the examination results can be corrected. In a similar manner, the examination positions of other subjects, such as subject U _21, can be corrected. α ₁₃ = 2 tangent (0.5T / D ₁₁ ) (1) α ₁₁ = tangent ((T + d ₁₁ ) / D ₁₁ ) − tangent (d ₁₁ −0.5T / D ₁₁ ) (2)

The projector 6 is a device for displaying the inspection image data on the projector 6 as an inspection image. The screen 7 is for showing a test image to a plurality of subjects U.

The illuminance control section 30 is composed of an illuminance sensor 31, a light source control device 32, and an illumination 33. The illuminometer sensor 31 is a sensor that measures the brightness of the illumination 33 and sends it to the brightness signal light source control device 32. The light source control device 32 is a device that transmits a signal to the illumination 33 so as to adjust the brightness according to the brightness signal of the illumination 33 transmitted from the illuminometer sensor 31. The brightness of the illumination 33 is controlled by the light source control device 32.

Next, the function and effect of the visual inspection equipment of the second embodiment will be described. As shown in FIG. 12, since the inspection image data is transmitted from the visual inspection device 1β to the projector 6 and the inspection image is displayed on the screen 7 by the projector 6, the inspection image can be shown to all the subjects U. When each subject U presses the reaction button 4,
A reaction signal is transmitted from the reaction button 4 to the visual inspection device 1β. Therefore, the reaction signals of the plurality of subjects U are transmitted to the visual inspection device 1β. In the visual inspection device 1β, the inspection image data sent to each subject U and the reaction signal sent from the subject U are collated, and the visual inspection of the subject is performed.

[0040]

According to the first aspect of the invention, the inspection image data transmitted from the visual inspection device can be distributed by the distributor so that the inspection images can be simultaneously displayed on the plurality of face mount displays. . Therefore, the test image can be shown to the subject wearing each face mount display. When each subject presses a reaction button, a plurality of reaction signals output from each reaction button are aggregated by the input aggregation device and transmitted to the visual inspection device. Therefore, the reaction signals of the plurality of subjects are transmitted to the visual inspection device. In the visual inspection device, the inspection image data sent to each subject and the reaction signal sent from the subject are collated to perform the visual inspection of the subject. Therefore, even if the visual inspection is processed in parallel for a large number of subjects,
Inspection time can be shortened. According to the invention of claim 2, the brightness of the inspection image data to be transmitted to the face mount display can be adjusted to a desired brightness by the brightness adjusting unit in accordance with the brightness data of the brightness sensor. it can. Since the brightness data is data in which the brightness of the inspection image displayed on the face mount display is detected by the brightness sensor, the brightness of the inspection image displayed on the face mount display is set to the desired brightness. Can be adjusted to According to the invention of claim 3, the inspection image data is transmitted from the visual inspection device to the projector and the inspection image is displayed on the screen by the projector, so that the inspection image can be shown to all the subjects. When each subject presses the reaction button, the reaction signal is transmitted from the reaction button to the visual inspection device. Therefore, the reaction signals of the plurality of subjects are transmitted to the visual inspection device. In the visual inspection device, the inspection image data sent to each subject and the reaction signal sent from the subject are collated to perform the visual inspection of the subject. Therefore, even if the visual inspection is performed in parallel for a large number of test subjects, the inspection time can be shortened. According to the fourth aspect of the present invention, the inspection result can be corrected by the inspection position shift correction unit according to the distance between the distance sensor and the screen. Therefore, the inspection result can be corrected according to the distance between the inspection position of the subject wearing the distance sensor and the screen. According to the invention of claim 5, the brightness control unit of the visual inspection position can control the brightness of the illumination in accordance with the illuminance of the screen measured by the illuminometer sensor. According to the invention of claim 6, the reflex nerve inspection unit can inspect the reflex nerve function of the subject. According to the invention of claim 7, since the dynamic visual acuity index is the time obtained by subtracting the exercise time from when the subject recognizes the examination image to when the push button is pressed, the dynamic visual acuity is determined regardless of the superiority or inferiority of the reflexes of the subject. Can be accurately inspected. According to the invention of claim 8, the mesopic acuity inspection section can inspect the mesopic acuity of the subject. According to the invention of claim 9, the brightness adaptation function can be inspected by an integrated device. According to the invention of claim 10, the visual sense of the subject can be inspected. According to the invention of claim 11, since the inspection image data and the reaction signal are collated for each subject and the visual inspections of a plurality of subjects can be processed in parallel, the visual inspection time can be shortened. According to the twelfth aspect of the present invention, the inspection image data and the reaction signal are collated for each subject, and the visual inspections of a plurality of subjects can be processed in parallel. Therefore, the visual inspection time can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a visual inspection facility according to a first embodiment.

FIG. 2 is an event trace diagram of the visual inspection facility of the first embodiment.

FIG. 3 is a system configuration diagram of a visual inspection system 10.

FIG. 4 is an explanatory diagram of databases DB2, DB11, DB12, DB31 to DB35.

FIG. 5 is an explanatory diagram of databases DB4 to DB10.

FIG. 6 is a flowchart of a visual inspection process.

FIG. 7 is a flowchart of reflex nerve examination processing.

FIG. 8 is a flowchart of a static visual acuity test process.

FIG. 9 is a flowchart of a dynamic visual acuity test process.

FIG. 10 is a flowchart of a mesopic vision test process.

FIG. 11 is a flowchart of a brightness forward stress inspection process.

FIG. 12 is a schematic configuration diagram of the visual inspection equipment of the second embodiment.

FIG. 13 is an event trace diagram of the visual inspection facility of the second embodiment.

FIG. 14 is a system configuration diagram of the visual inspection system 10β.

FIG. 15 is a diagram illustrating the principle of inspection position correction.

[Explanation of symbols]

1 Visual inspection device 2 distributor 3 face mount display 4 Reaction button 5 Input aggregation device 10 Visual inspection system 11 Brightness control program 12 Response signal reception program 13 Eyesight test program 14 Dynamic visual acuity test program 15 Mesopic acuity test program 16 Brightness forward stress inspection program 17 Inspection position correction program

Claims (12)

[Claims] 1. A visual inspection apparatus that transmits inspection image data to be shown as inspection images to a plurality of subjects, receives reaction signals returned from each subject, and inspects the visual sense of each subject, and the visual inspection. A distributor for distributing the inspection image data transmitted from the device into a plurality of inspection image data,
A plurality of face mount displays that can be worn in front of the subject's eyes and that can display the examination image data to the subject as an examination image; and a plurality of reaction buttons that output a response signal when the subject presses a button. A visual inspection facility, comprising: an input aggregating device that aggregates a plurality of reaction signals transmitted from the reaction button and transmits the reaction signals to the visual inspection device. 2. A brightness sensor that can be worn in front of a subject and that detects the brightness of an inspection image displayed on the face mount display and that transmits the brightness data to the visual inspection device. And a brightness adjusting unit which is set up in the visual inspection device and adjusts the brightness of the inspection image data to be transmitted to the face mount display to a desired brightness in accordance with the brightness data of the brightness sensor. The visual inspection facility according to claim 1, wherein: 3. A visual inspection device that transmits inspection image data to be shown as an inspection image to a plurality of test subjects, receives a reaction signal returned from each test subject, and inspects the vision of each test subject, and a plurality of test subjects. A screen for showing the inspection image on the screen, a projector for displaying the inspection image data transmitted from the visual inspection device on the screen as the inspection image, and a plurality of reactions for outputting a reaction signal when the button is pressed by the subject. A visual inspection facility comprising a button and an input aggregating device that aggregates a plurality of reaction signals transmitted from each reaction button and transmits the aggregated reaction signals to the visual inspection device. 4. A plurality of distance sensors that can be worn by a subject and that detect the distance from a screen, and the visual inspection device are set up to display the inspection results in accordance with the distance data detected by the distance sensors. 4. The visual inspection equipment according to claim 3, further comprising an inspection position deviation correction unit for correction. 5. An illumination for illuminating a screen, a light source control device for adjusting the brightness of the illumination, an illuminance meter sensor provided in front of the screen for measuring illuminance, and set up in the visual inspection device, The visual inspection facility according to claim 3, further comprising a brightness control unit that transmits a brightness adjustment command to the light source control device in accordance with the illuminance measured by the illuminometer sensor. 6. The visual inspection equipment according to claim 1, wherein a reflex nerve inspection unit for inspecting a reflex nerve of a subject is set up in the visual inspection device. 7. A visual acuity testing unit for setting up a visual acuity of a subject is set up in the visual inspection device, and the visual acuity testing unit displays a test image and then a response signal is returned by the subject. 4. The dynamic visual acuity index is a value obtained by subtracting, as a reflex nerve, an exercise time from when the subject recognizes the examination image to when the push button is pressed, from the response time until the test is performed. Visual inspection equipment according to 4, 5, or 6. 8. A mesopic vision test unit for testing mesopic vision of a subject is set up in the visual inspection device.
Visual inspection equipment as described. 9. A brightness adaptation test unit for testing the brightness adaptation function of a subject is set up in the visual inspection device.
Visual inspection equipment according to 6, 7, or 8. 10. A computer, comprising:
8. A visual inspection device comprising the visual inspection device according to 8 or 9. 11. The inspection image data is distributed to a plurality of inspection image data, each inspection image data is displayed as an inspection image for each of a plurality of subjects, and reaction signals transmitted by the plurality of subjects are aggregated to obtain the inspection image. A visual inspection method comprising collating data and the reaction signal for each subject, and performing visual inspection of a plurality of subjects in parallel. 12. An inspection image is displayed on a screen so that a plurality of subjects can be seen, reaction signals transmitted by a plurality of subjects are aggregated, and the inspection image data and the reaction signal are collated for each subject, A visual inspection method characterized in that the visual inspections of a plurality of subjects are processed in parallel.