KR20050053259A - Automatic refractor having automatic illumination for rear vision test - Google Patents

Abstract

Horizontal frame, a pair of disk assembly housings connected to the horizontal frame via a support shaft, control of the operation of multiple motors and multiple motors for driving multiple lens sets and multiple lens sets provided within the disk assembly housing An autotractor comprising a main body for controlling the operation of each part of the main body of the extractor, the extractor main body comprising a circuit unit, wherein the pair of disk assembly housings or the horizontal frame are turned on in accordance with the inspection mode input of the main operating panel. Or a near illumination controller that forms a near illumination device that is turned off and that controls the circuit on / off of the near illumination device; A microcomputer that controls each part of the collector body and interprets and executes commands of the main operation panel; And the near lighting device control circuit for selectively turning on / off the near lighting device through the near lighting control unit according to the command of the main operation panel analyzed by the microcomputer. In addition, it provides automatic lighting for correcting near refractive error and correcting binocular near vision function.

Description

Automatic refractor having automatic illumination for rear vision test}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auto-extractor, and more particularly, to an auto-extractor in which an illumination device for near eye examination is installed so that its illumination is automatically controlled.

The auto-extractor can diagnose the refractive error and visual abnormality of the patient's eye and provide the necessary devices for the examination to quickly and accurately find the prescription power to correct the refractive error and visual abnormality based on the diagnostic information. Equipment that provides connectivity to devices.

The patient eyes the auto-extractor at an appropriate distance and undergoes a series of examinations intended by the optometrist. Listen and judge the refractive error and visual function abnormality of the patient's eye and insert and manipulate the lens to correct it. Optometry processes include far refractive error correction, far binocular vision correction, near refractive error and near vision correction. If it is determined that the optometrist has obtained data on the patient's eyes and data for correcting refraction and visual function abnormality, the vision test using the automatic reflector is terminated.

This automatic extractor, as shown in FIG. 1, when the near-attachment attached to the automatic extractor main body 10, the cushion box 20, the main operation panel 30 and the automatic extractor main body 10 It consists of a table fixing device (not shown). In addition, in order to operate the auto-extractor, in addition to the auto-extractor, a target or chart projector 40 used for observing abnormal refractive power / visual function should be provided. Usually, the screen (not shown) on which the target or chart projector 40 is irradiated and predetermined characters are displayed is approximately 6 meters away from the auto-tractor main body 10, and the approximate display fixture has a display of approximately 15 to 70 centimeters. In addition, the approximate timetable is vertically attached to the approximate timetable fixing device and is movable, so that the visual acuity test can be performed while changing the distance between the approximate timeline and the collector body.

The auto-extractor body 10 consists of a horizontal frame 12 and two disk assembly housings 14 mounted to the horizontal frame 12, each of which has a spherical lens within the disk assembly housing 14. ), Cylindrical lenses, prisms, polarized lenses, cross cylinder lenses, other special lenses (not shown), motors (not shown) to drive these lenses and the operation of these motors. A circuit portion (not shown) for controlling the is formed. In addition, through the viewing window 16 provided in the disc assembly housing 14, the patient sees the text or the text on the screen.

The main operation panel 30 is a place where the command of the optometrist is input, through which the operations of the chart projector 40 and the auto selector main body 10 are collectively controlled, and the inspection result performed by the auto extractor main body 10 is A display unit 32 for recording and reading is included. The junction box 20 supplies power to each device of the automatic extractor and provides a terminal for communication connection.

When the optometrist selects an inspection mode (a far inspection mode or a near inspection mode) to proceed by operating the main control panel 30, the main control panel 30 is connected to the chart projector 40 through the section box 20 in relation to the inspection. The signal for projecting the target is transmitted, and the signal for allowing the lens required for the inspection to be placed at the position of the observation window 16 is sent to the automatic extractor main body 10. Irrespective of the target, a signal for commanding the shift of the lens or the change of the lens axis is transmitted only to the automatic selector body 10.

By the way, in diagnosing and correcting the refractive power and visual function of the eye of the patient using the above-described automatic extractor 10, 20, 30 and the target or chart projector 40, the correction of the refractive error of the original and the binocular vision abnormality of the patient In the calibration phase, the lighting condition of the optometrist should be adjusted to the level of lighting in the half-dark room.In the correction phase of near refractive error and near vision correction, the level of bright lighting required for near field tasks such as reading or assembling the clock is adjusted. in need. In particular, in order to perform the near refractive error correction and near binocular functional abnormality correction step is required a lighting unit that is installed separately from the automatic extractor body (10).

Far-end refractive correction and far-eye binocular correction are performed automatically through the input of a button on the main control panel 30 while maintaining the illumination of the optometry room in the half-dark room state, but the correction of the near refractive error and the abnormal correction of binocular vision Calibration is done manually. The reference table attached to the auto-extractor main body 10 is fixed to a position where the patient observes through the observation window 16 of the disc assembly housing 14 of the auto-extractor main body 10, and the target required for the inspection to be performed. After changing to by hand, the proximity inspection button of the main operation panel 30 is executed. At this time, the optometrist makes a bright state by operating a separate dedicated lighting unit for near-inspection in the lighting state of the half-dark room or adjusting the room lighting of the optometry room.

Therefore, when using the automatic extractors 10, 20, 30 according to the prior art, the lighting operation for performing the near refractive error correction and near binocular vision abnormality correction work is cumbersome, and also separate for the inspection There is an inconvenience to install a dedicated lighting unit.

Accordingly, it is an object of the present invention to provide an automatic selector for automatically providing illumination for near refractive error correction and near binocular vision correction as well as near refractive error correction and near binocular vision correction. will be.

It is another object of the present invention to provide an automatic extractor in which an illumination unit for performing near refractive error correction and near binocular vision abnormality correcting operation is provided in an automatic extractor body.

According to an aspect of the present invention, an automatic extractor includes a horizontal frame, a pair of disk assembly housings connected to the horizontal frame through a support shaft, a plurality of lens sets and a plurality of lenses provided in the disk assembly housings. And a main body for controlling the operation of each part of the extractor body, the extractor body comprising a plurality of motors for driving the sets and a circuit portion for controlling the operation of the plurality of motors. In particular, a pair of disk assembly housings or horizontal frames are formed with near-field lighting devices such as LEDs (Light Emitting Diodes) which are turned on or off in accordance with the inspection mode input of the main control panel. The circuit unit may include a near-lighting device control unit that will control turn-on / turn-off of the near-lighting device. A microcomputer that controls each part of the collector body and interprets and executes commands of the main operation panel; And a near-lighting device control circuit for selectively turning on / off the near-lighting device through the near-lighting device control unit according to the command of the main operation panel analyzed by the microcomputer. As another example of the circuit portion, the near lighting control circuit may be embedded in the microcomputer.

Automatic extractor according to another embodiment for achieving the object of the present invention includes a main operation panel for controlling the operation of the collector and the main body of the extractor, the main body of the rotating shaft, the near-axis fixed rod is inserted, A horizontal frame provided at an upper side thereof, the bracket configured to hold a near vision fixation bar in a far vision mode, and a horizontal frame sensor protruding from the inside of the bracket; A pair of disc assembly housings connected to the horizontal frame via a support shaft; A plurality of motors for driving the plurality of lens sets and the plurality of lens sets provided in the disc assembly housing; And a circuit portion for controlling the operation of the plurality of motors. In addition, the pair of disk assembly housings or horizontal frames are provided with near illumination devices that are turned on or off in accordance with the inspection mode input of the main operation panel. The circuit unit may further include a near-lighting device control unit that will control turn-on / turn-off of the near-lighting device; A ground detection sensor detection driver for detecting contact between the ground detection sensor and the near vision fixed bar; A microcomputer that controls each part of the main body of the extractor and analyzes the command of the main control panel and the output of the ground sensor sensor driver and performs a corresponding command; And a near-field lighting device control circuit for selectively turning on / off the light emitting device through the near-lighting device control unit according to a command of the microcomputer resulting from the output of the ground detecting sensor detecting driver.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic exploded view of the automatic extractor main body is equipped with a near-eye optometry lighting apparatus according to an embodiment of the present invention.

The automatic extractor main body 50 according to the present invention is a pair of disks connected to the horizontal frame 51 through the horizontal frame 51 and the support shafts 55a and 55b, similarly to the conventional general extractor main body. Various sets of lenses provided in the assembly housings 52a and 52b and the disc assembly housings 52a and 52b, motors for driving these lens sets, and circuit sections 58a and 58b for controlling the operation of these motors. . Here, parts where various lens sets and driving motors are formed are denoted by reference numerals '54a' and '54b'. The disk assembly housings 52a and 52b are provided with observation windows 53a and 53b, and the horizontal frame 51 is fastened to a near-by-close fixed bar connected to a near-by-closed indicator (not shown). Rotating shaft 56 is formed to move the up and down, and the upper portion is provided with a bracket 57 to hold the approximate fixation bar to stand upright at the time of circular inspection.

In addition to such a configuration, the auto-extractor main body 50 according to the present invention is formed with light emitting elements 60a and 60b which are near illumination devices that penetrate the disc assembly housings 52a and 52b to provide illumination in the near-inspection mode. The light emitting elements 60a and 60b are connected to circuits 58a and 58b for controlling the operation of lenses and motors installed in the disc assembly housings 52a and 52b through wires 50a and 59b. In the present embodiment, an LED (Light Emitting Diode) device is used as an example of the light emitting devices 60a and 60b, but is not limited thereto. In addition, the positions at which the light emitting devices 60a and 60b are formed may also be formed at the upper end of the horizontal frame 51 of the collector main body 50 or at the approximate fixation bar.

3 illustrates an example of the circuit units 58a and 58b. According to FIG. 3, the circuit units 58a and 58b are the microcomputer 300, the communication control driver 310 which manages the communication between the main control panel (30 in FIG. 1) and the collector body 50, and the collector body 50. And a motor controller 320, a command interpreter 330, and a near-illuminator controller 340 to control movement of the lens set.

The microcomputer 300 collects state information on each part of the collector main body 50, executes commands for controlling each part, and is controlled by the communication control driver 310 to receive and receive the main main control panel ( It serves to interpret and carry out the command of 30) of FIG. When the main operation panel (30 in FIG. 1) transmits a variety of commands for visual inspection to the selector main body 50, these commands are received and interpreted by the communication control driver 310. In this process, the communication control driver 310 extracts the command information part R1 to be interpreted by the extractor main body 50 by excluding additional information for communication, and then again extracts the extracted information R1 from the command interpreter 330. Send to). The command interpreter 330 receives the extraction information and converts the extracted information into a command signal R2 for controlling each part of the extractor main body 50. The command signal R2 is input to the microcomputer 300 and is processed to cause the near lighting device control unit 340 connected to the motor control unit 320 and / or the light emitting elements 60a and 60b according to each command signal, respectively. Hardware connected to the device, that is, the driving motor and / or the light emitting devices 60a and 60b. The operation of each part of the extractor main body 50 for visual inspection according to the command signal R2 described above is carried out by inserting a lens such as a spherical lens, a circumferential lens, a special inspection auxiliary lens, a circumferential lens, a prism lens, and an intersection. Lens axis changes such as circumferential lenses, distance adjustment between the left and right disk assembly housings 52a and 52b, and front and rear tilt adjustments of the left and right disk assembly housings 52a and 52b.

Dual, right and left tilt adjustment commands of the left and right disk assembly housings (52a and 52b in FIG. 2) are used to prepare the collector body 50 in preparation for near vision examination. Therefore, when the command interpreter 330 of the main body of the collector receives the forward and backward tilt adjustment command signals of the left and right disk assembly housings 52a and 52b from the communication control driver 310, the command interpreter 330 receives the leaf. The microcomputer 300 informs the microcomputer 300 that the collector body 50 will be changed to the near vision test mode. In response, the microcomputer 300 controls the near lighting controller 340 to turn on the light emitting devices 60a and 60b.

Specifically, when the optometrist inputs the main control panel (30 in FIG. 1) to input the front and rear inclinations of the left and right disk assembly housings (52a and 52b in FIG. 2) to be suitable for near-inspection, the input command is a communication control driver. It is delivered to the microcomputer 300 through the 310 and the command interpreter 330. Accordingly, the microcomputer 300 controls the near lighting device controller 340 to turn on the light emitting devices 60a and 60b to provide lighting suitable for the near inspection mode. When the near-inspection ends or changes from the near-inspection mode to the far-inspection mode, change the inclination of the front and rear disc assembly housings (52a and 52b in FIG. 2) to the main control panel (30 in FIG. 1) or to be suitable for the far-inspection. There is an input that encourages it. The changed input information is transmitted to the microcomputer 300 through the communication control driver 310 and the command interpreter 330, and the microcomputer 300 controls the near lighting device controller 340 to emit light 60a, Turn off 60b).

The microcomputer 300 according to the present embodiment analyzes and executes commands of the main operation panel (30 in FIG. 1) to control the operation of the motors through the motor control unit 320 according to the command signal from the command interpreter 330. The near lighting device control unit 340 which controls the operation of 60a, 60b is made to drive. In other words, the function of the near lighting device control circuit is included in the microcomputer 300. However, as another example, the microcomputer 300 may be configured to control only the operations of the motors through the motor controller 320 according to the command signal from the command interpreter 330, and control the operations of the light emitting devices 60a and 60b. To drive the near-illuminator control unit 340 The near-illuminator control circuit can also be configured separately.

On the other hand, in the near inspection mode and the far inspection mode, the positional relationship between the automatic extractor main body 50 and the near target fixing bar is different. In the near-inspection mode, as shown in FIG. 5A, the near-fixed fixation bar 63 is perpendicular to the automatic extractor main body 50 while being inserted into the rotation shaft 56, and in the long-term inspection mode, FIG. 5B. As shown in the figure, the open end of the approximate fixation rod 63 is facing upward, and the bracket 57 installed on the upper portion of the hole 64 in which the rotation shaft 56 is installed is connected to the approximate fixation rod 63. It is fixed. That is, the near target fixing rod 63 is inserted into the bracket 57 and fixed in the far inspection mode, but not in the near inspection mode.

Accordingly, the inventor of the present application installs the ground detection sensor 62 inside the bracket 57 to transmit the change of the inspection mode to the microcomputer 300 of FIG. 3 and based on the light emitting device 60a, 60b) it was possible to automatically control the turn on / off. Automatic control of illumination at the time of the proximity inspection using the ground detection sensor 62 will be described in detail with reference to FIGS. 4A to 4C.

4A shows circuit sections 58a and 58b used in the automatic extractor 50 employing the ground detection sensor 62. As shown in FIG.

Compared with the circuit part of FIG. 3, the ground detection sensor detection driver 350 is further added, and the microcomputer 300 has left and right disk assembly housings (52a and 52b of FIG. 2) transmitted from the command interpreter 330. Ground detection sensor detection driver 350 for detecting whether the ground detection sensor 62 and the near vision fixation rod 63 are in contact with each other without driving the near illumination device control unit 340 according to the forward / backward tilt adjustment command of FIG. In accordance with the output of the near lighting device control unit 340 and the light emitting device (60a, 60b) is different from the point that is turned on.

FIG. 4B shows a schematic exploded view of an autotractor body equipped with a ground detection sensor 62 that is electrically connected to the ground detection sensor detection driver 350 of FIG. 4A to indicate a change in measurement mode, and FIG. 4C shows such a ground detection. It is sectional drawing which shows the state in which the sensor 62 protruded in the center part of the bracket 57. FIG. Reference numeral 64 which is not described here is a wire that transmits the output change of the ground detection sensor 62 to the ground detection switch driver 350.

That is, in the round inspection mode, the proximity target fixing rod 63 is inserted into the bracket 57 and the proximity target fixing rod 63 comes into contact with the ground detection sensor 62. However, the ground detection sensor detection driver 350 connected to the ground detection sensor 62 recognizes the result and transmits the result to the microcomputer 300. The microcomputer 300 recognizes that the current inspection mode is the original inspection mode from the ground detection sensor detection driver 350 and causes the near-lighting controller 340 to turn off the light emitting devices 60a and 60b. On the contrary, in the near-inspection mode, the near-fixed fixation bar 63 is separated from the ground detection sensor 62 of the bracket 57, and the ground detection sensor detection driver 350 indicates that the current inspection mode is the near-inspection mode. To 300). Therefore, the microcomputer 300 controls the near lighting controller 340 to turn on the light emitting devices 60a and 60b.

In the automatic extractor according to the present invention, the near illumination device which is automatically controlled in accordance with the change of the position of the near field fixed bar indicating the command signal or the near-inspection mode in communication according to the input informing the near-initiation of the near-inspection of the main operation panel is selected. Since it is mounted on the main body, there is no need to separately install a separate near-lighting device for the near-inspection mode. And the optometrist has the effect of enabling the accurate optometry while observing the patient more precisely in a more comfortable state.

1 shows a schematic diagram of an eye examination system using an auto-tractor body and a chart project.

Figure 2 is a schematic exploded view of the automatic extractor main body is equipped with a near-eye optometry lighting apparatus according to an embodiment of the present invention.

3 shows an example of a circuit portion used in the automatic extractor of FIG.

4A shows another example of the circuit portion used in the automatic extractor of FIG.

FIG. 4B shows a schematic exploded view of the autotractor body equipped with the ground sensor of FIG. 4A.

Figure 4c is a view showing a cross-sectional view of the ground sensor installed on the bottom of the bracket for supporting the near-eye fixation rod in the circular optometry mode.

5A and 5B are diagrams showing the positional relationship of the automatic extractor main body and the fixed timetable rod in the near-eye optometry mode and the far-eye optometry mode, respectively.

Claims (4)

A horizontal frame, a pair of disk assembly housings connected to the horizontal frame via a support shaft, a plurality of lens sets provided in the disk assembly housing, a plurality of motors for driving the plurality of lens sets, and the plurality of motors An autotractor comprising a main body for controlling the operation of each part of the main body of the extractor, and a selector body consisting of a circuit unit for controlling the operation of these parts, The pair of disk assembly housings or the horizontal frame is provided with a near-lighting device that is turned on or off in accordance with the inspection mode input of the main operation panel, The circuit unit may include a near-lighting device control unit to manage the turn on / off of the near-lighting device; A microcomputer that controls each part of the collector body and interprets and executes commands of the main operation panel; And And a near illumination device control circuit for selectively turning on / off the near illumination device through the near illumination device control unit in response to a command of the main operation panel analyzed by the microcomputer. 2. The automatic lifter according to claim 1, wherein the near illumination control circuit is embedded in the microcomputer. The automatic extractor of claim 1, wherein the near-field lighting device is made of a light emitting diode (LED). An automatic extractor comprising a main body for controlling the operation of the main body and the extractor main body, The collector main body includes a rotating shaft having a near vision fixing rod inserted therein, a bracket provided at an upper portion of the rotating shaft to hold the near vision fixing rod in a far vision inspection mode, and a ground detecting sensor protruding from the inside of the bracket. A horizontal frame formed; A pair of disc assembly housings connected to the horizontal frame via a support shaft; A plurality of lens sets provided in the disk assembly housing and a plurality of motors for driving the plurality of lens sets; And It consists of a circuit unit for controlling the operation of the plurality of motors, The pair of disk assembly housing or the horizontal frame is formed near the illumination device which is turned on or off in accordance with the inspection mode input of the main operation panel, The circuit unit includes a near-lighting device control unit to control the turn on / off of the near-lighting device; A ground detection sensor detection driver for detecting whether the ground detection sensor is in contact with the near vision fixed bar; A microcomputer that controls each part of the collector main body and interprets commands of the main operation panel and outputs of the ground detection sensor detection driver and performs a corresponding command; And And a near lighting device control circuit for selectively turning on / off the light emitting element through the near lighting device control unit according to a command of the microcomputer due to the output of the ground detecting sensor detecting driver. Rector.