JPS5955238A - Apparatus for inspecting sight - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a visual acuity testing device that is systematized to improve work efficiency.

Although there have been some improvements in conventional visual acuity testing equipment, such as in the means of indicating test symbols on the visual acuity chart, the examinee and examiner face each other 1:1, and the examinee follows the examiner's instructions. The test format in which 11 dogs respond is still the same as the old one.
7 continues.

Such testing formats not only take a considerable amount of time to test per person, but also have problems with accuracy, such as errors in listening by the inspector and discrepancies in the visual acuity mark.
Furthermore, in a work environment (for example, a driver's license examination center) where visual acuity tests must be carried out for a long time, there are various problems such as accumulation of physical and mental fatigue on the part of the examiner.

In view of the conventional problems, the present invention improves the work efficiency and accuracy of visual acuity tests, and realizes labor savings.
Another object of the present invention is to provide a visual acuity testing device that can reduce fatigue of inspectors.

The object of this invention is to provide an indicator that indicates the test symbol on the visual acuity chart, a response screen that responds to the direction indicated by the test symbol, and an arithmetic device that determines the content of the response from the response switch and outputs visual acuity data. This is achieved by a vision testing device.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a layout diagram of a visual acuity testing device according to the present invention, showing an example having three testing lines. In the figure, 1.1.1 is an operation box for the examinee equipped with a response screen, etc., which will be described later, and 2.2.2 is an indicator equipped with an eye chart, etc. l are arranged in pairs facing each other. ! 1. 5i, an operating box for the 1st inspection fL personnel, which is installed at an appropriate location between the operating box 1 for the inspected person and the JIT display hanger. So, these three people are Microcombi 2, -
IN1.
A visual acuity test will be conducted.

At this point, enter (c) f (% in Figure 2) in the control box 1 for the test subject.
A four-way lever switch (response switch) 7 that responds to the direction indicated by the test symbol on the visual acuity chart, a push button switch 8 for starting, a push button switch 9 that says, “I understand”, etc.
It is equipped with switches that can be operated by the person to be inspected 5. Visual acuity indicator 1 that shows the results of steamed rice
0, a completion buzzer 11 for transmitting the inspection light ``■'', a running live 12, a run indicator lamp 13, etc. are provided.

In addition, as shown in FIG. 3, the indicator 2 has a U-shaped inspection i1: ￥+14°14...
A visual acuity chart 15 with a mark attached is attached to it.In one corner of Jl's test symbol 14.14... there is an indicator lamp 16.1.
6... is provided. As shown in the enlarged view of the fourth factor plane view and the fifth cross-sectional view, the assembled structure of the indicator 2 includes a side mask plate 18 attached to the mounting plate 17,
Communication holes 19 are bored at appropriate locations. and mounting plate 17
An indicator lamp 16 is attached to a socket 20 fixedly provided on the back side of the device facing the communication hole 19, and an eye chart 15 is fixed to the side mask plate 18 with pushpins 21.

On the other hand, as shown in FIG. 6, the inspector operation box 3 includes a microcombi, a reset pushbutton switch 22 for instructing ``-'', a right eye indicator lamp 23, a left eye indicator lamp 24, and a The same visual acuity display device 10 as that provided in the operation box 1 is provided, and three sets are provided in parallel, one cent more expensive than the above configuration.That is, it has three test lines and is used for 66 times. It is designed so that it can be inspected at any time.

The operation box 1 for the test subject, the indicator 2, and the operation box 3 for the inspector are as described above (respectively microcombi=-
It will be electrically connected to E-4, but the correlation as a system is summarized below.

As shown in Fig. 7, the data in the testee operation box 1 and the inspector operation box 3 or C) is transmitted via the interface 4a. , 7 are input to the microcomputer 4, and the display data is output from the microcomputer 4 to each of the operation boxes 1 and 3, and the instructions are also decoded to the indicator 2. Data is output.

Hereinafter, a specific test process using the visual acuity test device having the above configuration will be explained.

First, the examiner 6 uses the test subject 5's past performance data to find the starting position on the visual acuity chart 15 and presses the ten-node push button switch 22.
to instruct the microconbeater 4 by operating the . In addition, when instructions are given, the starting point is 0.7 on the visual acuity chart 15.

The start instruction is given by Kichi when the test subject 5 presses the start push button switch 8 of the test subject operation box 1, the indicator lamp 16 of the indicator 2 lights up, and one of the test marks 14 on the visual acuity chart 15 is activated. is instructed. The test starts from the right eye 7, where the test subject 5 reads the designated test mark 14 and informs the microcomputer 4 of the read information by operating the four-way lever ``I don't understand'' or the ``I don't understand'' switch 9. The microcomputer 4 compares and determines this information with the instruction data to the indicator 2, and performs the next visual acuity chart instruction or visual acuity determination based on the visual acuity test standard.

After visual acuity determination, the results are displayed on the visual acuity display 10.10 of the operation box 1 for the examinee and the operation box 3 for the examiner, and the completion buzzer 1 is displayed.
1 rings to let you know that the examination of your right eye has been completed.

Thereafter, the inspection shifts to the left eye, and the left eye indicator lamp 24 of the inspector operation box 3 is turned on, and the inspector 6 confirms this. The subsequent testing process is exactly the same as for the right eye,
After the inspection is completed, the right eye indicator lamp 2 of the inspector's operation box B
The three luck left target indicator lamps 24 are simultaneously turned on, and the running lamp 12 of the operation box 1 for the person to be inspected is turned off (1-7), and all inspections are completed.

Then, the control mechanism for this visual acuity testing device is as shown in Figures 7 and 8 according to the processing order. At the initial stage, the examiner 6 inputs start data indicating the position of star 1 on the visual acuity chart 15 (01), and then the examinee 5 presses the start button 8. The OJ determines whether or not it has been pressed, the OJ judges whether it has been pressed, the L indicator 2 shows the starting position on the visual acuity chart 15 (01), and the test subject 5
Detection symbol 1 is detected by operating the four-way lever Suinochia.
When the direction indicated by 4 is input, 04, information such as the number of correct and incorrect results with the same visual acuity, changes in visual acuity, data input errors, etc. is also sent to the fortune teller to indicate completion of the status indication data. Random number based on ``two eyesight chart coordinate position I〆C determination>i! and give the following visual acuity chart instructions (b). Then, it is determined whether there is a completion instruction (0''/), and if there is a completion instruction, the visual acuity is calculated, the result is displayed on the visual acuity display 10, and the completion buzzer 11 is sounded (g).

Since this control is time-division control, three inspection lines can be processed by simultaneous execution of t1. In this embodiment, an example of a visual acuity test device having six test lines is shown, but the number of test lines may be set arbitrarily. In addition, for example, it is possible to incorporate an audio tape into the device to give instructions to the examinee, to incorporate a printer that prints out the visual acuity assessment results, or to use an acuity chart consisting of a combination of letters and respond with a response screen corresponding to the letters. - Providing an inch (keyboard) is also included within the scope of the present invention.

As described above in detail, the visual acuity testing device according to the present invention systematizes the testing work, and thereby,
It has become possible for a single inspector to inspect multiple people at the same time, resulting in labor savings. In addition, mechanized inspection work significantly increases work efficiency, improves inspection accuracy, and reduces physical and mental fatigue of inspectors, among other benefits.

[Brief explanation of drawings]

Fig. 1 is a layout diagram of the visual acuity testing device according to the present invention, Fig. 2 is a front view showing the external appearance of the operation panel of the operation box for the examinee, Fig. 3 is a front view showing the external appearance of the indicator, and Fig. 3 is a front view showing the external appearance of the indicator. Figure 4 is a partially enlarged view of Figure 3 of the indicator 1, and Figure 5 is a section ih1 showing the structure of the indicator.
Figures 6 and 11 are front views showing the external appearance of the operation panel of the operator's operation box, Figure 7 is a system block diagram of this visual acuity testing device, and Figure 8 is a processing flow diagram of the control mechanism of this visual acuity testing device. It is. 2...Indicator 4...Micro: 1mm,
= 417...Four-way lever switch (response inch) 10...Visibility indicator 14...Test 1! It
it: L115... Visual acuity chart 16... Indication rung (TL or 1 person) Age 1 figure ζ 2nd figure Fang 4 figure 1 Fang 3 figure 5 Fang figure 6 Off figure 0 O8 figure

Claims (1)

[Claims] (1) An indicator that indicates the test symbol on the visual acuity chart and a response switch 814f in front of L for inputting an answer (while operating the hanger, the response switch (It2, ,i) determines the response content and Visual acuity testing device-8 characterized by being equipped with a performance device that outputs data.