JP2001025458A - Optometer and visual acuity tester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure safe use of an optometer, reduction of a working space and improvement of ease of use by storing integrally a trial lens set storing a plurality of trial lenses and eyeglasses and a controller lighting up test optotypes of an illuminating display device in an optometric case. SOLUTION: An optometric case 1 is structured by pivoting openably a case lid 3 to a case body 2 by a hinge 4. A trial lens set 5 having a plurality of trial lenses 5 is stored in the case body 2. In addition, in the case lid 3, a controller 7 having an oscillation portion remotely operating an illuminating display device, and a recording table 8 recording the result of a visual acuity test are stored. The controller 7 is stored in the case lid 3 so that only a control panel 9 having a variety of keys may be exposed outwardly to make it usable in that state and mounted detachably so that it may be used even if it is removed from the case lid 3 when necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optometric apparatus for recording a test result while performing a visual acuity test on a subject using a plurality of optometric lenses, and to illuminate an arbitrary test index by remote control from a controller of the optometric apparatus. The present invention relates to a visual acuity test apparatus for performing a visual acuity test using a lighting display device for displaying.

[0002]

2. Description of the Related Art Conventionally, when a visual acuity test of a subject is performed in a clinic, an ophthalmological clinic, a school, or the like, an arbitrary test index formed with the test index shown in FIG. The display device 51 is used. This lighting display device 51
Is provided with a receiving unit 53 capable of lighting and displaying an arbitrary inspection index by remote control by the controller 52 shown in FIG. The controller 52 is provided with a key corresponding to the inspection index, and when the inspector presses a predetermined key, an infrared transmission signal is emitted toward the receiving unit 53 of the lighting display device 51 to display the desired inspection index. It is supposed to.
As shown in FIG. 7, a relatively large controller 52 is mounted on a stand 54 so as to be fixed or detachable. In addition, the subject stands at a position about 5 m away from the lighting display device 51 or sits on a chair and supports the optometry lens set 55 containing a plurality of optometry lenses shown in FIG. Inspection was performed by using an optometry lens having a different power and a different axis angle from the optometry lens set 55 until the best corrected visual acuity was obtained, and the inspector recorded the inspection results on a table.

[0003]

In the conventional visual acuity test apparatus, when performing an examination, the examiner performs operations such as replacement of the optometry lens of the controller 52 and the optometry lens set 55 and recording of the examination result. When these devices are combined, a large work space is required, and the inspection cannot be performed efficiently. Depending on the orientation of the controller 52 mounted on the stand 54, the directivity to the receiving unit 53 may be reduced, and the lighting display device 51 may have difficulty in displaying the intended lighting. Further, the controller 52 and the optometry lens set 55 are
When the inspection results are recorded by removing them from 4, 56 and placing them on a long desk, unnecessary work space is required.
There was also a risk of the controller 52 being dropped and damaged.
In the case where signals are transmitted and received between the lighting display device 51 and the controller 52 by radio waves, the signals are easily affected by harmonics emitted from a fluorescent lamp or the like.
There is a problem that a stable communication state cannot be obtained.
As described above, there has been a demand to secure the safety of the controller 52 and not be restricted by the directivity of the transmission unit, and to record the inspection result while performing the inspection with the optometric lens set 55 near the inspector. .

An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide an optometry apparatus which can use a controller safely, is not restricted by the directivity of a transmission unit, and omits a working space to improve usability. It is an object of the present invention to provide a visual acuity inspection apparatus using the optometry apparatus.

[0005]

The present invention has the following arrangement to achieve the above object. That is, in the optometry apparatus, an optometry lens set containing a plurality of optometry lenses and eyeglasses and a controller for lighting and displaying an arbitrary inspection index of the lighting display device by remote control are provided integrally in the optometry case so as to be usable. It is characterized by having. The optometry case includes an optometry case main body and an optometry case lid that is openably and closably attached to the optometry case main body. The optometry lens set is stored in the optometry case main body, and the controller is stored in the optometry case lid. It is characterized by having been done. Further, a retransmitting unit for receiving a transmission signal from the controller and retransmitting the signal to the receiving unit of the lighting display device is provided in the optometry case. Further, the retransmitting unit retransmits a transmission signal from the controller via a signal transmission unit provided in the optometry case. Also, the re-transmitting unit is characterized in that the transmitting direction of the transmitting light is variably provided on the outer surface of the optometry case. Further, the optometry case is provided with a recording table for recording an eyesight test result of the subject. Also, the optometry case is mounted on a stand with movable casters.

[0006] Further, the visual acuity test apparatus is characterized by comprising the above-described optometric apparatus and a lighting display device having a receiving unit capable of lighting and displaying an arbitrary test index by remote control from a controller of the optometric apparatus. I do.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 (a)-
(D) is a side view, a top view, a front view, and a partial front view at the time of storage of the optometry case, FIG. 2 is an explanatory view showing a hinge portion of the optometry case, and FIG. FIG. 4 is a perspective view showing a stored state of the optometry apparatus, and FIG.
FIG. 4 is an explanatory diagram showing a signal transmission circuit from a controller to a re-transmission unit.

First, a schematic configuration of a visual acuity inspection apparatus will be described with reference to FIGS. In FIG. 3, reference numeral 1 denotes an optometry case constituting the optometry apparatus,
And an optometry case lid 3 attached to the optometry case main body 2 so as to be openable and closable. The optometry case lid 3 is attached to the optometry case main body 2 so as to open and close with the hinge portion 4 as a fulcrum. FIG. 4 shows a stored state in which the optometry case lid 3 is closed in the optometry case main body 2. An optometry lens set 6 having a plurality of optometry lenses 5 is housed in the optometry case main body 2, and a controller 7 having a transmission unit for remotely operating a lighting display device 51 shown in FIG. A recording table 8 for recording the results of the eye test of the examiner is stored. The optometry case 1 is used as a visual acuity inspection device in combination with the lighting display device shown in FIG. 6, and the optometry case 1 is used near the examiner. The controller 7 is housed in the optometry case cover 3 so that only the operation panel 9 having numeric keys and various function keys is exposed. The controller 7 includes the optometry case lid 3
It is stored in a detachable manner so that it can be used even if it is detached from the optometry case lid 3 as needed.

A retransmitting unit 10 is provided at the top of the optometry case main body 2. The retransmitting unit 10 receives a signal from the transmitting unit of the controller 7 and retransmits the signal to the receiving unit of the lighting display device. The re-transmitting unit 10 transmits an infrared transmission signal from the transmitting unit of the controller 7 to the optometry case main body 2.
The photoelectric conversion is carried out by a signal transmission circuit described later provided in the above, and the infrared transmission signal is transmitted again. Retransmission part 1
0 is provided with an infrared light emitting diode, and is mounted on the outer surface of the optometry case main body 2 so as to be capable of changing the projection direction of infrared light, for example, rotatable by about 180 °. The optometry case 1 is mounted on a stand 11 with casters for use by placing it near the examiner at an arbitrary position, and locks and fixes the casters 12 as needed, or unlocks and moves the casters 12. You can do it. In addition to the casters 12, the stand 11 may be provided with an adjuster 13 (see FIGS. 1A and 1C) that can be adjusted in height with respect to the installation surface.

Next, the configuration of the optometry case 1 will be specifically described with reference to FIGS. In FIG. 1A, the optometry case 1 is configured such that the optometry case main body 2 is a stand 11.
It is supported at an angle of about 30 ° to the near side with respect to the horizontal direction. Further, the optometry case lid 3 is supported by the optometry case main body 2 at an inclination of about 15 ° toward the near side with respect to the horizontal direction. The optometry case lid 3 has the structure shown in FIG.
(B) As shown in (c), the controller 7 is stored on the left side as viewed from the front, and the recording table 8 is provided on the right side. As shown in FIG. 1D, the optometry case 1 is stored by closing the optometry case body 2 by rotating the optometry case lid 3 about 165 ° with the hinge 4 as a fulcrum.

The optometry case main body 2 and the optometry case lid 3 are formed by blow molding. Hinge part 4
As shown in FIG. 2, the support shaft portion 14 of the optometry case body 2
The optometry case lid 3 is screwed into the screw 15 fitted in the hole 14a of
The hole 16a of the angle member 16 attached to the shaft is rotatably fitted into the hole 16a, and the cap 17 prevents the hole 16a from coming off. The optometry case body 2 is provided with a storage tray 18 for storing the optometry lens 5 and the glasses. This storage tray 1
For the recording table 8 and the recording table 8 of the optometry case lid 3, vacuum-molded products are suitably used in consideration of surface roughness because they are used for storing lenses and for recording.

Here, the controller 7 sends a signal to the re-transmission unit 10
Signal transmission circuit 1 provided as an example of signal transmission means up to
9 will be described with reference to FIG. A circuit board 20 is provided in the optometry case main body 2. The circuit board 20 is provided with a phototransistor 21 for photoelectrically converting an infrared transmission signal transmitted from the transmission unit of the controller 7 into an electric signal, an amplifier 22 for amplifying a signal current flowing from the phototransistor 21, and the like. The circuit board 20 is connected to a power supply 23 for supplying an operation power supply for the signal transmission circuit 19 and connectors 24a, 24b, and 24c for supplying electricity from the signal transmission circuit 19 to the retransmission unit 10. When the controller 7 is used while housed in the lid 3 of the optometry case, the controller 7 may be operated by being connected to the power supply 23 by the power jack 25, or may be operated by a battery built in the controller 7 itself.

The controller 7 converts the address code into a pulse signal corresponding to the key input, modulates the modulated signal with a carrier wave, generates a remote control signal, and outputs the signal as an infrared transmission signal using an infrared light emitting diode. When the signal transmission circuit 19 receives the infrared transmission signal from the controller 7, the phototransistor 21 photoelectrically converts the infrared transmission signal into an electric signal, and the amplifier 22 current-amplifies the electric signal.
The retransmitting unit 10 is energized via 4b and 24c. The retransmitting unit 10 is provided with an infrared diode, and retransmits an infrared transmitting signal to the receiving unit of the lighting display device (see FIG. 6) when energized. Since the re-transmitting unit 10 is provided at the top of the optometry case main body 2 so that the projection direction of the infrared light is variably provided, the directivity of the infrared transmission signal can be relatively wide, so that the lighting display device can reliably receive the transmission signal. . In the lighting display device, a photodiode is provided in a receiving unit. When an infrared transmission signal is received, the signal is converted into an electric signal, amplified and then detected, a carrier is removed, a waveform is shaped, and a remote control signal is taken out. Then, the device control section turns on the lamp of the index portion corresponding to the address code of the remote control signal.

According to the above configuration, in the optometry apparatus,
An optometry lens set 6 containing a plurality of optometry lenses, a controller 7 for remotely controlling a lighting display device, and a recording table 8 for recording the results of visual acuity test of a subject can be housed integrally in the optometry case 1 and used. The work space can be omitted by placing the optometry case 1 near the examiner and performing an eyesight test, and various inspection functions can be provided.
It is easy to use because it is concentrated inside. Further, the controller 7 can be detached and used independently from the optometry case 1, but can be used while being stored in the optometry case 1.
There is no danger of the controller 7 being dropped and damaged, and it is safe. Further, in the visual acuity test apparatus, a retransmitting unit 10 that receives an infrared transmission signal from the controller 7 housed in the optometry case lid 3 and retransmits the signal to the receiving unit of the lighting display device is provided. Since the projection direction of the infrared light is variably provided on the top, it is not restricted by the directivity of the transmission unit of the controller 7 housed in the optometry case 1, and a reliable and stable communication state is maintained toward the reception unit of the lighting display device. it can.

In this embodiment, the controller 7 is housed in the optometry case lid 3 and the retransmitting unit 10 is provided in the optometry case main body 2. However, the present invention is not limited to this. And the retransmission unit 10 may be provided on the optometry case lid 3, or the controller 7 and the retransmission unit 10 may be provided on one of the optometry case body 2 or the optometry case lid 3.
May be provided. In addition, the retransmitting unit 10 photoelectrically converts the infrared transmission signal from the controller 7 by the signal transmission circuit 19 and retransmits the signal. If the directivity of the transmitted signal can be ensured, the concept of transmitting the transmitted signal to the receiving section of the lighting display device via not only electrical means but also optical means is included. For example, as the signal transmission means, a transmission signal is transmitted to the receiving unit of the lighting display device via a window of re-establishment credit via an optical path provided in the optometry case 1 accommodating the controller 7, or transmitted from the controller 7. The infrared transmission signal is reflected by a plurality of reflecting mirrors provided in the optometry case 1 and guided to a position where the directivity of the reflected light is secured, and transmitted to the lighting display device, or the infrared transmission from the controller 7. The signal may be guided to a position where the directivity of transmission light is secured by an optical fiber cable provided in the optometry case 1 and transmitted to the lighting display device. Further, the signal transmitted from the controller 7 is not limited to the infrared signal, but may be another signal. Of course, many more modifications can be made without departing from the spirit of the invention.

[0016]

According to the optometry apparatus of the present invention, an optometry lens set containing a plurality of optometry lenses and eyeglasses and a controller for remotely controlling a lighting display device can be housed and used integrally in an optometry case. Therefore, by placing an optometry case near the examiner and performing an eyesight test, a work space can be omitted, and since various inspection functions are integrated in the optometry case, the operability is good. Further, when a recording table for recording the result of the eyesight test of the subject is also provided in the optometry case, the usability can be further improved. In addition, the controller can be used alone by removing it from the optometry case,
Since it can be used while housed in the optometry case, there is no danger of the controller being dropped and damaged, and it is safe. Further, in the visual acuity test apparatus, a retransmitting unit that receives a transmission signal from a controller housed in the optometry case and retransmits the signal to the receiving unit of the lighting display device changes the projection direction of the transmission light on the outer surface of the optometry case. Because it is provided variably, it is not restricted by the directivity of the transmission unit of the controller stored in the optometry case,
A reliable and stable communication state can be maintained toward the receiving unit of the lighting display device.

[Brief description of the drawings]

FIG. 1 is a side view, a top view, a front view, and a partial front view when the optometry case is used.

FIG. 2 is an explanatory view showing a hinge portion of an optometry case.

FIG. 3 is a perspective view showing a use state of the optometry apparatus.

FIG. 4 is a perspective view showing a stored state of the optometry apparatus.

FIG. 5 is an explanatory diagram showing a signal transmission circuit from a controller to a retransmission unit.

FIG. 6 is an explanatory diagram of a lighting display device.

FIG. 7 is an explanatory diagram showing a usage mode of a conventional controller.

FIG. 8 is an explanatory diagram showing a usage mode of a conventional optometry lens set.

[Explanation of symbols]

 Reference Signs List 1 optometry case 2 optometry case main body 3 optometry case lid 4 hinge part 5 optometry lens 6 optometry lens set 7 controller 8 recording table 9 operation panel 10 retransmitting unit 11 stand 12 caster 13 adjuster 14 support shaft 15 screw 16 angle material 17 cap Reference Signs List 18 Storage tray 19 Signal transmission circuit 20 Circuit board 21 Phototransistor 22 Amplifier 23 Power supply 24a, 24b, 24c Connector 25 Power jack

Claims (8)

[Claims] 1. An optometry lens set containing a plurality of optometry lenses and eyeglasses, and a controller for lighting and displaying an arbitrary inspection index of a lighting display device by remote control are provided integrally in an optometry case so as to be usable. An optometric apparatus characterized by the above-mentioned. 2. The optometry case includes an optometry case main body and an optometry case lid body openably and closably attached to the optometry case main body, wherein the optometry lens set is housed in the optometry case main body, and the controller 2. The optometry apparatus according to claim 1, wherein the optometry apparatus is housed in the optometry case lid. 3. The optometric case according to claim 1, wherein a retransmitting unit that receives a transmission signal from the controller and retransmits the signal to a receiving unit of the lighting display device is provided in the optometry case. Optometrist. 4. The optometry apparatus according to claim 3, wherein the retransmission unit retransmits a transmission signal from the controller via signal transmission means provided in the optometry case. 5. The optometry apparatus according to claim 4, wherein the re-transmitting unit is provided on the outer surface of the optometry case so as to change the projection direction of the transmission light. 6. The optometry case is provided with a recording table for recording an eyesight test result of a subject.
The optometry apparatus according to claim 2, 3, 4, or 5. 7. The optometry apparatus according to claim 1, wherein the optometry case is mounted on a stand with a movable caster. 8. An optometric apparatus according to any one of claims 1 to 7, and a lighting display device having a receiving unit capable of lighting and displaying an arbitrary test index by remote control from a controller of the optometric apparatus. A visual acuity inspection device, characterized in that: