JP2001037721A - Automatic visual acuity examining - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic visual acuity examining device capable of easily recognizing an examining result even from a remote place. SOLUTION: This automatic visual acuity examining device provided with an visual acuity measurement means for successively changing a optotype to be presented corresponding to an examining program and automatically judging visual acuity based on the response of an examinee to the presented optotype is provided with a light emitting means visibly provided on the outside of a device case body for emitting the light of at least two different colors and a control means for changing a color light emission state by the light emitting means based on visual acuity result obtained by the visual acuity measurement means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic visual acuity inspection apparatus used in an eyeglass shop or the like.

[0002]

2. Description of the Related Art There is known an automatic visual acuity test apparatus that sequentially changes a visual target presented to a subject according to a program and automatically determines a visual acuity based on a response of the subject. At eyewear stores, etc., this device is installed at the storefront, without the attendant attending,
The subject (customer) can freely measure his or her own visual acuity.

[0003]

However, in this type of apparatus, the inspection result is output from a printer or the like to notify the customer himself / herself. However, it is difficult for a clerk to immediately know the inspection result from a remote place. could not.

[0004] In addition, even if such an automatic visual acuity test apparatus is placed in a store, customers often do not notice the existence of the apparatus. In this case, the customer misses an opportunity to grasp his or her own eyesight state.

[0005] The present invention has been made in view of the above prior art, and it is an object of the present invention to provide an automatic visual acuity test apparatus that can easily obtain test results even from a remote place.

It is another technical object of the present invention to provide an automatic visual acuity inspection apparatus that allows a subject (customer) to know the existence of the apparatus.

[0007]

Means for Solving the Problems In order to solve the above problems, the present invention is characterized by having the following configuration.

(1) In an automatic visual acuity test apparatus having visual acuity measuring means for sequentially changing a target to be presented in accordance with an inspection program and automatically determining visual acuity based on a response of the subject to the presented target. A light-emitting unit that is provided outside the housing and that emits light of at least two different colors, and a control unit that changes a light-emitting state of the color by the light-emitting unit based on a visual acuity result obtained by the visual acuity measuring unit And the following.

(2) In the automatic visual acuity test apparatus of (1), the control means controls the light emission of the light emitting means so that the visual acuity level obtained by the visual acuity measuring means is expressed in a predetermined color. It is characterized by.

(3) In the automatic visual acuity test apparatus of (1), the visual acuity measuring means includes a binocular test and a step of individually testing the right eye and the left eye, and the control means is obtained by the binocular test. When the result of individually inspecting the right eye or the left eye with respect to the test result is low visual acuity, the light emitting unit is configured to express the test result in a light emitting state different from the light emitting state in the binocular examination. Light emission is controlled.

(4) In the automatic visual acuity test apparatus of (1), the visual acuity measuring means includes a step of measuring a distance visual acuity and a near visual acuity, and the control means is obtained by measuring the distance visual acuity and the near visual acuity. The light emission of the light emitting means is controlled so that each visual acuity result is expressed by a combination of blinking and non-blinking together with a predetermined color.

(5) In the automatic visual acuity test apparatus having visual acuity measuring means for sequentially changing the visual target to be presented in accordance with the test program and automatically determining the visual acuity based on the response of the subject to the presented visual target, Detecting means for detecting that the examiner is approaching, and guidance sound generating means for issuing a voice for guiding the examinee to the visual acuity inspection device when the detection means detects that the subject is approaching Command signal input means for the subject to input a command signal for starting the test in accordance with the guidance of the guidance voice generating means, and execution means for executing the test program based on the input of the command signal. It is characterized by the following.

(6) In the automatic visual acuity test apparatus of (5), the subject is provided with a response means for responding to the interpretation result of the optotype, and the response means is also used as the command signal input means. .

[0014]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the appearance of an automatic visual acuity inspection apparatus according to the present invention.

Reference numeral 1 denotes an apparatus main body, and binocular inspection windows 2R and 2L are provided on an upper portion of the apparatus main body 1 so that a subject can look into an optotype presented inside the housing of the apparatus. A distance measuring sensor 40 is provided at the center slightly below the inspection windows 2R and 2L. The distance measuring sensor 40 includes an infrared light emitting unit and a light receiving unit. When the subject approaches, light emitted from the light emitting unit is reflected by the subject, and the reflected light is received by the light receiving unit. Thus, the distance between the apparatus main body 1 and the subject is detected.

An LED 41a that emits green light and an LED 41b that emits orange light are attached to the upper surface of the housing of the apparatus main body 1, and visual acuity results measured by emission of two different colors are displayed in a plurality of stages. It has become.

At the front of the lower part of the apparatus main body 1, a lever 5 for the subject to respond in the direction to the optotype presented inside the main body, and a button 4 for responding when the optotype cannot be read. Is provided. Reference numeral 8 denotes a printer, and 9 denotes a speaker to which a voice guide instruction is output.

FIG. 2 is a configuration diagram when the optical system disposed inside the apparatus is viewed from above, and FIG. 3 is a diagram illustrating a configuration when the optical system is viewed from the side and a configuration of the control system. .

Lenses 10R and 10L are disposed in the left and right inspection windows 2R and 2L, respectively, and rear target windows 15R and 1R are provided.
The test target which is switched and arranged to each of 5L is the eye E
The distance is apparently 5 m from R and EL. Also,
The optical paths behind the lenses 10R and 10L are provided with lenses 11R and 11L for near vision and prisms 12R and 12L for convergence.
Are provided so that they can be inserted and removed. In addition to the lenses 10R and 10L, the lenses 11R and 11L and the convergence prism 12 are provided.
By passing through R and 12L, the optotype windows 15R and 15L
Is optically brought to a near distance of 40 cm. The lenses 11R and 11L and the convergence prisms 12R and 12L are held by a lens holder 13,
When the lens holder 13 is moved in the left-right direction by the insertion / removal unit 35, each lens is inserted into and removed from the optical path. The insertion / removal unit 35 has a feed screw 35b and the like rotated by a motor 35a, and the lens holder 13 is slid with the rotation of the feed screw 35b.

The left and right optical paths are separated by cylindrical inner covers 14R and 14L each having a partition plate at the center, and the viewing spaces for the left and right eyes to see the target are individually secured. Is the internal lighting lamp 17
R and 17L individually illuminate. The inner covers 14R, 14L are formed in the same shape, and the rear optotype windows 15R, 15L are also provided at the same position.
Therefore, when the inside is observed through the inspection windows 2R and 2L with both the left and right eyes, the two target windows 15R and 15L are fused and appear as one, similarly to the case where the inside is observed with the left and right eyes alone. At the same time, the inner covers 14R and 14L are also observed as one space with the left and right walls being the same.

An optotype presenting section 20 for switching and arranging the test optotypes in the optotype windows 15R and 15L includes an optotype disk plate 21 and a pulse motor 2 for rotating and driving the optotype disk plate 21.
2 and two illumination lamps 24R and 24L for illuminating the target on the target disk plate 21.

The target disc plate 21 is made of a glass substrate having translucency, and has a visual acuity value of 0.1 to 1.0 on the substrate.
Landolt visual targets in four directions of left, right, up, and down are formed of a chrome coat having a light shielding property in 12 steps of 1.2 and 1.5. The test target is formed so as to correspond to the positional relationship between the two target windows 15R and 15L so that the same target for right eye presentation and left eye presentation can be simultaneously presented to the left and right eyes. . The optotypes on the optotype disc plate 21 which are paired by the rotation of the motor 22 are the same as the optotype windows 15R,
15L, each target is provided with an illumination lamp 24R, 24L.
Illuminated by

In FIG. 3, reference numeral 30 denotes a control unit for controlling the entire apparatus, which includes a voice guide generation unit 31, a response button 4, a lever 5, a printer 8, a distance measuring sensor 40, LEDs 41a, 41b, Etc. are connected. A memory 33 stores an inspection program.

Next, the operation of the apparatus having the above configuration will be described.

In a spectacle shop or the like, the apparatus is installed at a store so that the subject (customer) can perform an eyesight test freely. When the subject approaches the front of the apparatus main body 1 and its distance becomes about 50 cm, the distance measuring sensor 40 detects that the subject has approached, and the detection signal is transmitted to the control unit 30.
Is input to The control unit 30 drives the voice guide generation unit 31 and guides the subject to the device, such as "Welcome. Automatically measure your eyesight. Fold the lever lightly." Emits. The subject can know the presence of the automatic visual acuity test apparatus by the voice guide. In order to make the presence of an automatic visual acuity tester noticeable, it is possible to make a visual appeal using textual information written on paper, etc. A person (customer) can more surely recognize the device 1 that is the source of the voice.

When the subject tilts the lever 5 in accordance with the voice guide, the control unit 30 receives the signal and makes the apparatus movable. First, the control unit 30 controls the internal illumination lamps 17R and 17R.
L and the illumination lamps 24R, 24L are turned on, and an optotype having a visual acuity value of 0.1 is presented in the optotype windows 15R, 15L. From the speaker 9, an audio guide saying “Give the lever lightly with your right hand, and attach your left hand to the front button and look through the window.” Then, a voice guide saying, "Measure your eyesight. Tilt the lever gently in the direction in which the wheel has broken. If you do not know the direction, press the button in front of you." If a response is made at 5, the eyesight test program is executed.

The visual acuity test measures the distance vision and the near vision.
Each is programmed to perform in order of right eye, left eye, and both eyes. First, as the right eye examination, the target window 15R
Is presented with an optotype having a visual acuity value of 0.5 as an initial optotype.
The left eye's field of view is made equivalent to a shielded state by turning off the internal illumination lamp 17L and the optotype illumination light source 24L.

Under the control of the control unit 30, the speaker 9 announces "What is the direction?"
When the target direction can be determined, the subject is instructed to tilt the lever 5 in that direction. When the subject responds to the lever 5 with the determination result of the target, the control unit 30 determines whether the target is correct or not. If the response is correct, an optotype with an increased visual acuity value is presented, and if incorrect, an optotype with a reduced visual acuity value is presented. If an incorrect answer is raised by one level, or if there is an unreadable response by the button 4, the visual acuity value is returned to the level at which it was seen, and the test is continued by changing the direction of the target. In this way, the target presented to the subject is sequentially changed in accordance with the program. If the correctness of the response is correct, and if there is a correct answer for the same visual target two or more times, the visual acuity value is determined by the control unit 30 as having the visual acuity. You.

When the distance vision test for the right eye is completed, the left eye test and the binocular test are similarly performed, and the respective test results are obtained. When the binocular examination has been completed, the speaker 9 says, "Distant eyesight measurement has been completed.
Measure your eyesight. When measuring, lower the lever.
If not, press the front button. "Is issued. When the subject responds with the lever 5, the near vision test program is executed.

The control unit 30 drives the insertion / removal unit 35 to dispose a lens for near vision test on the test windows 2R and 2L. After that, a voice guide saying "Please tilt the lever gently in the direction in which the ring has broken. If you do not know the direction, please press the button in front of you." An inspection is performed.

When all the examinations are completed (or when the button 4 is pressed after the far vision examination and the procedure does not shift to the near vision examination), the speaker 9 says "End. The results are printed from the right side. ", And an inspection result is output from the printer 8. Further, the control unit 30 sets the LE based on the test result of the distance vision of both eyes among the test items.
The lighting control of D41a and 41b is performed. When the visual acuity value is less than 0.3, the LED 41b that emits orange light is turned on. When the visual acuity value is 0.3 or more and less than 0.7, L that emits green light is emitted.
The ED 41a is turned on. When the visual acuity value is 0.7 or more, both are not turned on.

By the light emitting states of the LEDs 41a and 41b, in a spectacle shop or the like, even if a clerk is not present alongside the apparatus, the result of the eyesight judgment of the subject can be immediately known from a remote place. The judgment result of the visual acuity value is LED 41
Since it is expressed in a plurality of stages (three stages including a state without light emission) such as green of a and orange of the LED 41b,
The shop side can know the state of the eyesight result of the subject in more detail, and can visually and immediately know the state by distinguishing the colors, and can give advice and correspondence to the subject in accordance with the eyesight result in more detail. For example, when it is known that the visual acuity value is 0.3 or more to less than 0.7 by lighting green, it is possible to advise that driving is hindered and that eyesight correction may improve visual acuity. When it is known from the lighting of orange that the eyesight value is less than 0.3, the necessity of eyeglass correction can be appealed.

In the above-described embodiment, four levels (four patterns) can be expressed by including two colors of simultaneous light emission, from 1.0 or more, less than 1.0 to 0.7 or more, and 0.7 or more. The eyesight result can be adjusted to an evaluation according to the School Insurance Law, such as less than 0.3 or more and less than 0.3.

In the above, in order to know the general test result of the subject, the LED 4 is used based on the result of the binocular test for the distance vision.
Although the light emission states of 1a and 41b are controlled, the inspection result can be known in more detail as follows.

For example, even if the visual acuity value is 0.7 or more (or a visual acuity value of 0.3 or more and less than 0.7) in the binocular test for distant vision, one of the left and right individual tests is less than 0.3. There are not a few subjects. In such a case, an orange LED 4 showing a visual acuity value of less than 0.3 based on the test result of one eye.
The light emission state of 1b is set to blink light emission. By doing so, it is possible to grasp that the low eyesight was obtained with one eye, separately from the examination results of both eyes, so that advice to the subject can be shown more accurately. The visual acuity value of both eyes is 0.3 or more
If it is less than 0.7, the green LED 41a may be turned on at the same time.

In addition, separately from this, the LEDs 41a, 41
By changing the lighting state of b, it is also possible to distinguish the test results of the distance vision and the near vision. For example,
When the result of the distance vision is obtained, the LEDs 41a and 41b are turned on without blinking so that the result can be understood, and the display is switched to blinking when the result of the near vision is obtained.

Alternatively, even when the lighting of the LEDs 41a and 41b is controlled at the end of the inspection,
Priority is given to low vision in distant and near vision, and LEDs 41a and 41b are blinked when near vision is low, and non-flashing when far vision is low vision. Let it.

Alternatively, only when the near vision is lower than the far vision, the result of the near vision is converted to LE.
D41a or 41b blinks. For example, when the distance vision is 0.3 or more to less than 0.7 and the near vision is less than 0.3, the green LED 41a indicating the distance vision result is set to a non-flashing lighting state, and the near vision result is displayed. Orange LE indicating
D41b is turned on and off.

As described above, the two-color LEDs 41a and 41b
With the combination of blinking and non-blinking, it is possible to express not only the visual acuity level but also the distance visual acuity and the near visual acuity. The result can be grasped immediately from a remote place.

[0040]

As described above, according to the present invention,
The automatically measured visual acuity test result can be easily known even from a remote place. Further, when the subject approaches, it is automatically detected and guided to the apparatus by voice, so that the subject (customer) can easily notice the existence of the apparatus. Therefore, the subject (customer) can be positively provided with an opportunity to grasp his or her own visual acuity state, and the spectacle store can lead to sales promotion of spectacles.

[Brief description of the drawings]

FIG. 1 is a diagram showing the appearance of an automatic visual acuity inspection apparatus according to the present invention.

FIG. 2 is a configuration diagram when an optical system disposed inside the apparatus is viewed from above.

FIG. 3 is a diagram showing a configuration of the optical system when viewed from the side and a configuration of a control system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 9 Speaker 20 Optotype presenting part 30 Control part 31 Voice guide generation part 33 Memory 5 Lever 40 Distance measuring sensor 41a, 41b LED

Claims (6)

[Claims] 1. An automatic visual acuity test apparatus having visual acuity measuring means for sequentially changing a visual target to be presented in accordance with an inspection program and automatically determining visual acuity based on a response of a subject to the presented visual target. A light emitting unit that is provided to be visible outside the body and emits light of at least two different colors;
An automatic visual acuity testing apparatus comprising: a control unit that changes a color light emission state of the light emitting unit based on a visual acuity result obtained by the visual acuity measuring unit. 2. The automatic visual acuity test apparatus according to claim 1,
The automatic visual acuity test apparatus according to claim 1, wherein said control means controls light emission of said light emitting means so as to express a visual acuity level obtained by said visual acuity measuring means in a predetermined color. 3. The automatic visual acuity test apparatus according to claim 1,
The visual acuity measuring means includes a binocular examination, a step of individually examining the right eye and the left eye, and the control means individually examines the right eye or the left eye with respect to the examination result obtained by the binocular examination. An automatic visual acuity testing apparatus, wherein when the result is low visual acuity, the light emission of the light emitting means is controlled so that the test result is expressed in a light emitting state different from the light emitting state in the binocular examination. 4. The automatic visual acuity test apparatus according to claim 1,
The visual acuity measuring means includes a step of measuring a distance visual acuity and a near visual acuity, and the control means blinks and non-blinks each visual acuity result obtained by the measurement of the distance visual acuity and the near visual acuity together with a predetermined color. An automatic visual acuity inspection apparatus, wherein the light emission of the light emitting means is controlled so as to be expressed by a combination of the following. 5. An automatic visual acuity testing apparatus having a visual acuity measuring means for sequentially changing a visual target to be presented according to a test program and automatically determining visual acuity based on a response of the subject to the presented visual target. Detecting means for detecting that the subject is approaching, and guidance voice generating means for issuing a voice for guiding the subject to the visual acuity inspection device when the detection means detects that the subject is approaching; Command signal input means for the subject to input a test start command signal in accordance with the guidance of the guidance voice generating means, and execution means for executing the test program based on the input of the command signal. An automatic visual acuity test apparatus characterized by the following. 6. The automatic visual acuity test apparatus according to claim 5,
An automatic visual acuity test apparatus, comprising: a responding unit that responds to the subject with the interpretation result of the target, wherein the responding unit is also used as the command signal input unit.