WO2016132804A1 - 視力検査装置および視力検査システム - Google Patents
視力検査装置および視力検査システム Download PDFInfo
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- WO2016132804A1 WO2016132804A1 PCT/JP2016/051765 JP2016051765W WO2016132804A1 WO 2016132804 A1 WO2016132804 A1 WO 2016132804A1 JP 2016051765 W JP2016051765 W JP 2016051765W WO 2016132804 A1 WO2016132804 A1 WO 2016132804A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
- A61B3/005—Constructional features of the display
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
Definitions
- the present invention relates to a vision test apparatus and a vision test system.
- the visual acuity test allows a subject to visually recognize a C-shaped Landolt ring commonly used in Japan, an E-shaped tumbling E chart commonly used in the United States, etc. Is done. What is measured is distance vision, near vision, and the like.
- the visual target is presented in a housing that the subject can look into, and the joystick lever
- an automatic visual acuity inspection device that allows the subject himself / herself to input the visual recognition result of the target by the above operation.
- an object of the present invention is to propose a more useful visual inspection device and visual inspection system.
- the present invention provides a mounting unit in front of the eye, a display unit for a target for visual acuity test, a display control unit for switching a target displayed on the display unit, and a target visual check result.
- a portable visual examination device characterized by having an input unit and a measurement result transmission unit. As a result, a portable visual acuity inspection device that can be worn on an individual's head is realized.
- an organic EL display panel is used for the display unit. Thereby, the black display in the black-and-white display of the target can be effectively performed.
- the portable eye test apparatus has an optical system capable of changing a distance at which the virtual image of the target can be seen. This realizes a portable visual acuity inspection device capable of measuring far vision and near vision.
- the mounting portion can be mounted in front of the eye in both the glasses usage state and the naked eye state.
- the portable eyesight test apparatus includes a detection unit that detects whether or not glasses are used.
- the detection unit determines the relationship between the eyesight inspection and the correction visual acuity test, which are inspection purposes, and the non-use of glasses.
- the display unit can switch between a C-type target and an E-type target.
- a portable visual inspection device suitable for the area of use is realized.
- the display unit includes a display unit for the right eye and a display unit for the left eye, and one of them is valid in the visual acuity test and both are valid in the information display.
- the display unit performs display with characters enlarged from the visual target in information display. This also increases information transmission capability and enables smooth measurement.
- the portable eyesight inspection device autonomously carries out multiple types of eyesight inspection.
- the right eye, left eye, far vision, near vision, naked eye vision, corrected vision, and the like can be measured smoothly.
- the apparatus has an eyepiece mounting unit, a target display unit for visual acuity test, and an acceleration sensor, and inputs a target visual recognition result by movement of the head.
- a portable eye test device is provided. Thereby, it is possible to smoothly input the visual recognition result and shift from the understanding of the display content to the visual acuity test.
- the target visual recognition result is determined based on the relationship between the direction of the target displayed on the display unit and the direction of movement of the head.
- invisibility is input by a predetermined head movement.
- a visual acuity inspection system including a plurality of portable visual acuity inspection devices and a general unit that can communicate with each of the portable visual acuity inspection devices. Thereby, a plurality of subjects can be measured in parallel.
- a more useful visual acuity inspection device and visual acuity inspection system are provided.
- Example 1 It is a block diagram which shows the whole structure in Example 1 of the visual acuity test
- (Example 1) 3 is a basic flowchart illustrating an operation of an HMD control unit according to the first embodiment. It is a flowchart which shows the detail of step S36 of FIG.
- FIG. 1 is a block diagram showing an overall configuration in Example 1 of a visual acuity test apparatus and a visual acuity test system according to an embodiment of the present invention.
- the first embodiment is configured as a visual acuity inspection system having a visual acuity inspection device that is a goggle-type head-mounted portable visual acuity inspection unit (hereinafter referred to as “portable visual acuity inspection unit”) 2 and a generalization unit 4 capable of short-range communication with the visual acuity inspection device. Is done.
- FIG. 1 shows only one portable eyesight inspection unit 2, but the present invention is provided with a plurality of portable eyesight inspection units having the same configuration, and each portable eyesight inspection unit is an integrated unit.
- the supervision unit 4 is configured as a system that can process the eye test results of a plurality of subjects in parallel. As will be described later, the examination in each portable eyesight examination unit is independently performed by each subject.
- the portable visual acuity test unit 2 can be put in front of the glasses 10 that the subject on the right eye 6 and the left eye 8 of the subject usually uses, and in this state Corrected visual acuity can be measured. Further, the naked eyesight can be measured by removing the glasses 10 and applying only the portable eyesight inspection unit 2.
- the portable visual acuity inspection unit 2 includes a main body 2a and a temple 2b, and the main body 2a is positioned in front of the lens of the glasses 10 when the temple 2b is put on the ear from above the glasses 10. Has been.
- the portable eyesight inspection part 2 is located in front of the eyes, leaving the accommodation space for the eyeglasses 10, and the naked eye acuity can be measured.
- the main body 2a is provided with a spectacle detection unit 11 for detecting the presence or absence of the spectacles 10, and can automatically determine whether the corrected visual acuity measurement or the naked eye visual acuity measurement is performed.
- a function such as a warning that the target state is not reached (for example, a recommendation display to remove the eyeglasses).
- Both the right-eye display 12 and the left-eye display 14 in the main body 2a are configured by OLED (organic light-emitting diode) display panels using the organic EL phenomenon.
- the right-eye display 12 and the left-eye display 14 are both monochrome, but use an OLED (Organic Light Emitting Diode) display panel, so that a black-and-white target for visual acuity testing can be variably displayed in different sizes and orientations. When you do this, you can clearly draw black and contribute to the vision test.
- the drive unit 16 selectively drives the right-eye display 12 or the left-eye display 14 on the basis of an image signal for target display sent from the display control unit 22 as will be described later, so that the right-eye target or the left-eye target is displayed. Marks are displayed on their respective display surfaces.
- the virtual image of the target displayed on the display surface is guided to the right eye 6 and the left eye 8 by the right eyepiece optical system 18 and the left eyepiece optical system 20 along the line of sight 6a and 8a indicated by the dashed arrows.
- the right-eye eyepiece optical system 18 and the left-eye eyepiece optical system 20 change the distance at which the virtual image of the target can be seen depending on whether the distance vision measurement is performed or the near vision measurement is performed.
- the portable eyesight test unit 2 further includes a head mounted display control unit (hereinafter “HMD control unit”) 24, a global positioning system terminal (hereinafter “GPS”) 25, an acceleration sensor 26, a storage unit 28, and a short-range communication unit 30.
- HMD control unit head mounted display control unit
- GPS global positioning system terminal
- the HMD control unit 24 controls various functions of each unit of the portable visual acuity test unit 2 based on a program stored in the storage unit 28.
- the function of the HMD control unit 24 will be described. First, the detection result by the eyeglass detection unit 11 is transmitted to the HMD control unit 24 so that the corrected visual acuity measurement or the naked eye visual acuity measurement is performed as described above.
- the HMD control unit 24 also sends an optical system drive signal to the drive unit 16 via the display control unit 22 to drive the right eyepiece optical system 18 and the left eyepiece optical system 20 to measure distance vision or near. Set whether to measure visual acuity.
- the GPS 25 detects the area where the portable eyesight test unit 2 is used, and sends the detection result to the HMD control unit 24. For example, the target data to be used is automatically switched from the target data stored in the storage unit 28 so as to display the target of the tumbling E chart. Further, the HMD control unit 24 controls the display control unit 22 in consideration of the signal from the acceleration sensor 26 based on the target data stored in the storage unit 28, and causes the drive unit 16 to display the target image signal. To send.
- the acceleration sensor 26 detects the movement of the subject's head for intentionally displaying the visual recognition result of the target, and sends a detection signal to the HMD control unit 24. For example, when the subject moves his / her head in one of the directions of the top / bottom / left / right cuts of the Landolt ring (for example, if the right side can be visually recognized, the neck is turned to the right), the acceleration sensor 26 detects the movement of the head. Then, a detection signal is sent to the HMD control unit 24, whereby the HMD control unit 24 recognizes the subject's answer.
- the acceleration sensor 26 detects the movement, and the HMD control unit 24 thereby detects the movement of the subject. Recognize that you cannot answer. Details of this function will be described later.
- the short-range communication unit 30 communicates with the supervision unit 4 for exchanging information regarding the start of the inspection and transmitting the inspection result.
- the position of each block illustrated in FIG. 1 is for convenience of explanation, and does not indicate an actual arrangement.
- the display control unit 22, the HMD control unit 24, the acceleration sensor 26, the storage unit 28, and the short-range communication unit 30 are actually small components and are mounted in the main body 2a.
- a power supply unit 32 including a battery is disposed in the main body unit 2a, and supplies power to each component of the portable visual acuity test unit 2 as described above.
- the supervision unit 4 has a short-range communication unit 34 for communicating with the short-range communication unit 30 of the portable eyesight test unit 2 having the above-described configuration using a short-range radio wave (or infrared ray) 34a.
- the short-range communication unit 34 can communicate with another portable visual inspection unit (not shown) having the same configuration as the portable visual inspection unit 2 by using short-range radio waves (or infrared rays) 34b and 34c.
- the general control unit 36 of the general control unit 4 controls communication establishment and communication execution with each portable visual acuity inspection unit (hereinafter referred to as the portable visual inspection unit 2 as a representative of a plurality of portable visual inspection units), and short-range communication.
- the unit 34 instructs the portable eyesight test unit 2 to start measurement.
- the operation unit 38 and the display unit 40 are provided for performing a setting operation for starting the measurement.
- the short-range communication unit 34 receives the measurement result information from the portable eyesight test unit 2 and stores it in the storage unit 42.
- the storage unit 42 stores various types of data including measurement result information, and stores a program for the function of the overall unit 4 that cooperates with the portable eyesight inspection unit 2.
- the power supply unit 44 supplies power to each component of the overall control unit 4 as described above.
- FIG. 2 is a basic flowchart for explaining the operation of the HMD control unit 24 in the first embodiment.
- the flow starts when power supply to the portable visual acuity inspection unit 2 is started by the power supply unit 32, performs a communication standby process with the overall unit 4 in step S2, and proceeds to step S4.
- step S4 it is checked whether or not communication with the overall management unit 4 has been established. When communication is established, the process proceeds to step S6.
- step S6 based on the detection of the GPS 25, it is checked whether or not the area where the portable eyesight test unit 2 is used is Japan. If the area of use is Japan, the process proceeds to step S8, a C-shaped Landolt target is selected, and the process proceeds to step S10. On the other hand, if it is not detected in step S6 that the use area is Japan, the use is presumed to be in the United States or the like, the process proceeds to step S12, and the target of the E-shaped tumbling E chart is selected. The process proceeds to S10.
- step S10 the presence / absence of a measurement start signal is detected.
- the portable vision inspection unit 2 autonomously executes the measurement scheduled in a predetermined order.
- the right eye measurement start signal is received as the first measurement start signal from the supervising unit 4, and the measurement operation is started.
- the autonomous operation of the HMD control unit 24 causes the next step S10.
- the left eye measurement is started based on the left eye measurement start signal prepared by the HMD control unit 24 itself.
- Step S10 When the measurement start signal is detected in step S10, the process proceeds to step S14, and the presence or absence of the near-field measurement signal is detected.
- This near-field measurement signal is prepared autonomously by the HMD control unit 24 itself in accordance with a measurement schedule instructed from the initial supervision unit 4.
- Step S10 when the measurement is started by the first measurement start signal from the supervising unit 4, the near-field measurement signal is not detected in Step S14 because the measurement starts from the distance measurement.
- step S14 If no near vision measurement signal is detected in step S14, the process proceeds to step S16, and the distance eyesight optical system 18 and the left eyepiece optical system 20 are adjusted to set the distance at which the virtual image of the target can be seen to, for example, 5 m. The measurement is set and the process proceeds to step S18.
- step S16 when a near-field measurement signal is detected in step S14, the process proceeds to step S20, and the right eyepiece optical system 18 and the left eyepiece optical system 20 are adjusted to set the distance at which the virtual image of the target can be seen to 30 cm, for example.
- step S18 the near vision measurement is set, and the process proceeds to step S18.
- step S18 the presence or absence of a naked eye measurement signal is detected.
- This naked eye measurement signal is autonomously prepared by the HMD control unit 24 itself in accordance with a measurement schedule instructed from the initial supervision unit 4.
- step S10 when the measurement is started by the first measurement start signal from the supervising unit 4, the measurement starts with the naked eye measurement, so that the naked eye measurement signal is detected in step S18.
- step S18 When the naked eye measurement signal is detected in step S18, the process proceeds to step S22, and it is checked whether or not the glasses 10 are detected by the glasses detection unit 11. If no eyeglasses are detected, it is the naked eye measurement state, and the process proceeds to step S24. On the other hand, when the eyeglass detection by the eyeglass detection unit 11 is confirmed in step S22, the process proceeds to step S26, and a warning that the glasses 10 unnecessary for the naked eye measurement should be removed is displayed on the right eye display 12 and the left eye display 14. The process returns to step S18. Then, the loop of steps S18, S22, and S26 is repeated unless the naked eye measurement signal is not detected in step S18, or the glasses are not detected in step S22 due to the removal of the glasses 10.
- step S28 it is checked whether or not the eyeglasses 10 are detected by the eyeglass detection unit 11. If the eyeglasses 10 are detected, the eyesight measurement unit 10 is in a corrected visual acuity measurement state, and the process proceeds to step S24. On the other hand, when the eyeglass detection by the eyeglass detection unit 11 is not confirmed in step S28, the process proceeds to step S30, and a warning that the eyeglasses 10 necessary for the correction visual acuity measurement should be worn is displayed on the right eye display 12 and the left eye display 14. Then, the process returns to step S18. Then, the loop of steps S18, S28 and S30 is repeated unless a naked eye measurement signal is detected in step S18 or glasses are detected in step S28 due to wearing of the glasses 10.
- step S24 the usage explanation message of the portable eye test unit 2 is displayed on the right-eye display 12 and the left-eye display 14, and the process proceeds to step S32.
- the message is displayed so that it can be viewed with both eyes with enlarged characters.
- the warning display in step S30 since a person with weak eyesight is in the naked eye state, the warning is displayed so that it can be visually recognized with both eyes using enlarged characters.
- step S32 the acceleration sensor 26 checks whether or not an acceleration change based on an operation in which the subject understands the usage and swings his / her head vertically (repeated vertical movement) is detected. If an acknowledged acceleration is detected in step S32, the process proceeds to step S34. On the other hand, if the acknowledged acceleration is not detected, the process returns to step S24. Thereafter, until the acknowledged acceleration is detected, steps S24 and S32 are repeated, and the display of the usage explanation message is continued.
- step S34 the measurement program is started, and the process proceeds to step S36 to execute the measurement process. Details thereof will be described later.
- step S36 the process proceeds to step S38. Note that if it is not possible to confirm the establishment of communication with the overall control unit 4 in step S4, the process immediately proceeds to step S38. Further, when the measurement start signal is not detected in step S10, the process immediately proceeds to step S38. Note that the case where the measurement start signal is not detected in step S10 means that, in addition to the situation where the measurement start signal from the overall unit 4 has not yet been received, all scheduled measurements are completed, and the portable eyesight inspection unit 2 This includes situations where the measurement start signal is no longer prepared autonomously.
- step S38 it is checked whether or not the power supply to the portable visual inspection unit 2 is continued. When it is confirmed that the power is being supplied, the process returns to step S4, and thereafter, steps S4 to S38 are repeated to perform the measurement that is scheduled in response to various changes in the situation. On the other hand, when power supply is no longer confirmed in step S38, the flow ends.
- FIG. 3 is a flowchart showing details of the measurement process in step S36 of FIG.
- the flow starts, the presence or absence of a near-field measurement signal is checked in step S42. If the near vision measurement signal is not detected, it is assumed that the normal distance vision measurement state is assumed, and the process proceeds to step S44, the setting for recording the distance vision measurement result is performed, and the process proceeds to step S46. On the other hand, if a near vision measurement signal is detected in step S42, the process proceeds to step S48, the setting for recording the near vision measurement result is performed, and the process proceeds to step S46.
- step S46 the presence or absence of the naked eye measurement signal is checked. If a naked eye measurement signal is detected, since it is a normal naked eye measurement, the process proceeds to step S50, and the setting for recording the naked eye visual acuity measurement result is performed, and the process proceeds to step S52. On the other hand, if the naked eye measurement signal is not detected in step S46, it is estimated that the measurement is a corrected visual acuity measurement, and the process proceeds to step S54. The correction visual acuity measurement result is set to be recorded, and the process proceeds to step S52.
- step S52 the presence or absence of the right eye measurement signal is checked. If the right eye measurement signal is detected, the process proceeds to step S56, where the setting for recording the right visual acuity measurement result is made, and the setting for displaying the visual target only on the right eye display 12 is made in step S58, and the process goes to step S60. Transition. At this time, nothing is displayed on the left-eye display 14 and the screen is in a dark state. On the other hand, if the right eye measurement signal is not detected in step S52, it is estimated that the measurement is the left eye measurement, and the process proceeds to step S62 to set the recording result of the left visual acuity, and only the left eye display 14 is viewed in step S64. After setting to display the mark, the process proceeds to step S60. At this time, nothing is displayed on the right-eye display 12 and a dark state is set.
- step S60 an initial target having a predetermined size is displayed.
- This initial visual target has a standard visual acuity, but if there is past data of the subject, a visual target having a size based on the latest visual acuity is employed.
- the process proceeds to step S66, and it is checked whether or not a predetermined time (a time estimated to be invisible for the subject, for example, 2 seconds) has elapsed after the display is started. If this predetermined time has not elapsed, the process proceeds to step S68, and it is checked whether or not an acceleration change based on an action in which the subject shakes his / her head sideways (repetition of left-right movement) is detected. This corresponds to a case where the subject voluntarily displays an intention that cannot be visually recognized before the predetermined time elapses. If no swing acceleration is detected in step S68, the process proceeds to step S70.
- step S70 it is checked whether an answer acceleration is detected.
- the answering action that provides such acceleration is performed by the subject according to the instructions for use.For example, when it is determined that the Landolt ring break is on the head, the head is raised relatively rapidly and then slowly. Is the operation to return Similarly, when the subject determines that the Landolt ring break is below, the subject lowers his head relatively rapidly and then slowly returns his head. When it is determined that the Landolt ring break is on the right, the neck is relatively slightly twisted to the right and then the neck is slowly returned. Further, when it is determined that the Landolt ring break is on the left, the neck is relatively slightly twisted to the left and then the neck is slowly returned.
- step S70 If any of these accelerations is detected in step S70, the process proceeds to step S72. On the other hand, if the answer acceleration is not detected in step S70, the process returns to step S66, and either the predetermined time elapses, the swing acceleration is detected, or the answer acceleration is detected. As long as there is not, it repeats step S66 to step S70 and waits for an answer.
- step S72 it is checked whether or not a correct answer in which the detected response acceleration matches the direction of the Landolt ring break is detected. If the answer is correct, the process proceeds to step S74, and the correct answer is recorded together with the size of the target. On the other hand, when the predetermined time has elapsed in step S66, or when the swing acceleration is detected in step S68, or when the correct answer is not detected in step S72, the process proceeds to step S76.
- step S76 the visual target is changed, and the visual target enlarged to the next level size according to the visual acuity inspection standard is displayed so that the visual recognition becomes easier, and the process returns to step S66. Thereafter, steps S66 to S72 and step S76 are repeated until the correct answer is detected in step S72, and the target is sequentially enlarged until it becomes visible.
- step S74 When the correct answer is recorded in step S74, the process proceeds to step S78, and it is checked whether or not the correct answer recorded in step S74 is the third correct answer for the target of the same size. If it has not reached the third time yet, the process proceeds to step S82, the target scale reduced to the next level in accordance with the visual acuity inspection standard is displayed, and the process returns to step S66.
- step S66 to step S74, step S78, and step S82 are repeated to reduce the target sequentially. As long as this state continues, the correct answer recorded in step S74 is the correct answer for the target with a different size, so the transition from step S78 to step S82 continues.
- step S76 the correct answer is detected in the next step S72, there is a possibility that the correct answer will be the correct answer for the target of the same size as the correct answer previously.
- step S80 the correct answer of the same large target has reached three times as a result of repeating the target enlargement and reduction before and after the visual recognition limit.
- the visual acuity is determined based on the correct size of the target, and the process proceeds to step S84.
- step S84 it is checked whether or not all scheduled measurements have been completed based on instructions from the supervision section 4. If there is an incomplete measurement, the process proceeds to step S86 to prepare the next measurement start signal and end the flow. As a result, the process returns to step S4 via step S38 in FIG. 2, and when the next measurement start signal is detected in step S10, the process proceeds to step S36 through various stages, and measurement according to the flow in FIG. 3 is performed again. Is called. For example, when the measurement for the right eye is finished in FIG. 3 and the measurement start signal for the left eye measurement is prepared in step S86, the measurement start signal for the left eye measurement is detected when the process reaches step S10 in FIG. At step S36 again, the measurement process for the left eye is performed.
- step S84 when it is detected in step S84 that all scheduled measurements have been completed, the process proceeds to step S88, where all measurement results are transmitted to the overall unit 4 and the flow is terminated.
- the process since the next measurement start signal is not prepared, the process returns to FIG. 2, and even after reaching Step S10, the process immediately proceeds to Step S38, and the portable visual acuity inspection unit 2 ends the autonomous measurement. Then, it waits for reception of the next measurement start signal from the supervision unit 4.
- the explanation of the usage in step S24 and the warning in steps S26 and S30 are not limited to visual display as shown in the embodiment.
- an earphone unit may be provided in the portable visual acuity test unit 2, and the earphone unit may be driven from the HMD control unit 24 to give explanations and warnings by sound that can be heard only by the subject.
- the switching between the C-type target and the E-type target is automatically performed by the GPS 25.
- no GPS or the like is provided in the portable visual acuity test unit 2, and the visual target is instructed by the general unit 4.
- the communication between the control unit 4 and the portable visual acuity test unit 2 is configured to be performed wirelessly, but this may be configured to be performed in a wired manner. Good.
- the portable visual acuity test unit 2 may not be provided with the power supply unit 32 or the like, and power may be supplied from the power supply unit 44 of the overall unit 4 via the cable.
- a mounting unit in front of the eye a display unit for a visual test for visual acuity test, a display control unit for switching a visual target displayed on the display unit, a visual target
- a portable eyesight inspection apparatus characterized by having a visual recognition result input section and a measurement result transmission section.
- an organic EL display panel is used for the display unit. Thereby, the black display in the black-and-white display of the target can be effectively performed.
- the portable eye test apparatus has an optical system capable of changing a distance at which the virtual image of the target can be seen. This realizes a portable visual acuity inspection device capable of measuring far vision and near vision.
- the mounting portion can be mounted in front of the eye in both the glasses usage state and the naked eye state.
- the portable eyesight test apparatus includes a detection unit that detects whether or not glasses are used.
- the detection unit determines the relationship between the eyesight inspection and the correction visual acuity test, which are inspection purposes, and the non-use of glasses.
- the display unit can switch between a C-type target and an E-type target.
- a portable visual inspection device suitable for the area of use is realized.
- the display unit includes a display unit for the right eye and a display unit for the left eye, and one of them is valid in the visual acuity test and both are valid in the information display.
- a portable visual acuity inspection apparatus capable of smooth measurement is realized.
- the display unit performs display with characters enlarged from the visual target in information display, and this also enables smooth measurement.
- the portable eyesight inspection device autonomously carries out multiple types of eyesight inspection.
- the right eye, left eye, far vision, near vision, naked eye vision, corrected vision, and the like can be measured smoothly.
- the present specification has a mounting part in front of the eye, a display part of a target for visual acuity inspection, and an acceleration sensor, and the target visual recognition result is obtained by the movement of the head.
- a portable eyesight testing device characterized by inputting. Thereby, it is possible to smoothly input the visual recognition result and shift from the understanding of the display content to the visual acuity test.
- the target visual recognition result is determined based on the relationship between the direction of the target displayed on the display unit and the direction of movement of the head.
- invisibility is input by a predetermined head movement.
- a visual acuity inspection system including a plurality of portable visual acuity inspection devices and a general unit that can communicate with each of the plurality of portable visual acuity inspection devices. Provided. Thereby, a plurality of subjects can be measured in parallel.
- it has a display unit for the right eye and a display unit for the left eye, and one of them is effective in the visual acuity test and both are effective in the information display.
- a portable eyesight test apparatus characterized by the above. Thereby, the visual acuity of each of the right eye and the left eye is appropriately examined, and the transmission ability can be enhanced by using both eyes for the purpose of information transmission.
- the display unit for the right eye and the display unit for the left eye perform display with characters enlarged from the target in the information display. This also increases information transmission capability and enables smooth measurement.
- the portable eyesight test apparatus has an acceleration sensor, and switches between the information display and the display in the eyesight test according to the movement of the head. Thereby, it is possible to smoothly shift from the understanding of the information display to the visual acuity test.
- the present invention can be applied to an eyesight inspection apparatus.
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Abstract
Description
以下では、本明細書中に開示されている種々の特徴について総括的に説明する。
12、14 表示部
22 表示制御部
26 入力部
30 送信部
18、20 光学系
11 検知部
26 加速度センサ
Claims (20)
- 眼前への装着部と、視力検査用の視標の表示部と、前記表示部に表示される視標を切換える表示制御部と、視標視認結果の入力部と、測定結果の送信部とを有することを特徴とするポータブル視力検査装置。
- 前記表示部に有機ELディスプレイパネルを用いたことを特徴とする請求項1記載のポータブル視力検査装置。
- 前記視標の虚像が見える距離を変更可能な光学系を有することを特徴とする請求項1記載のポータブル視力検査装置。
- 前記装着部は眼鏡使用状態および裸眼状態のいずれにおいても眼前への装着を可能とすることを特徴とする請求項1記載のポータブル視力検査装置。
- 眼鏡使用の有無を検知する検知部を有することを特徴とする請求項4記載のポータブル視力検査装置。
- 前記検知部により、検査目的である裸眼視力検査と矯正視力検査の別と眼鏡の使用不使用の関係を判定することを特徴とする請求項5記載のポータブル視力検査装置。
- 前記表示部は、C型視標とE型視標を切換え可能であることを特徴とする請求項1記載のポータブル視力検査装置。
- 前記表示部は、右目用表示部および左目用表示部を有し、視力検査においてはその一方を有効とするとともに、情報表示においては両者を有効とすることを特徴とする請求項1記載のポータブル視力検査装置。
- 前記表示部は、情報表示において視標よりも拡大した文字により表示を行うことを特徴とする請求項1記載のポータブル視力検査装置。
- 前記入力部は加速度センサを有し、頭部の動きにより視標視認結果を入力することを特徴とする請求項1記載のポータブル視力検査装置。
- 前記表示部に表示される視標の向きと頭部の動きの向きの関係により視標視認結果の判定することを特徴とする請求項10記載のポータブル視力検査装置。
- 所定の頭部の動きにより視認不能を入力することを特徴とする請求項10記載のポータブル視力検査装置。
- 複数種類の視力検査を自律的に実施することを特徴とする請求項1記載のポータブル視力検査装置。
- 眼前への装着部と、視力検査用の視標の表示部と、加速度センサを有し、頭部の動きにより視標視認結果を入力することを特徴とするポータブル視力検査装置。
- 前記表示部に表示される視標の向きと頭部の動きの向きの関係により視標視認結果の判定することを特徴とする請求項14記載のポータブル視力検査装置。
- 所定の頭部の動きにより視認不能を入力することを特徴とする請求項14記載のポータブル視力検査装置。
- 複数の請求項1記載のポータブル視力検査装置と、前記各ポータブル視力検査装置と通信可能な統括部とを有することを特徴とする視力検査システム。
- 右目用表示部および左目用表示部を有し、視力検査においてはその一方を有効とするとともに、情報表示においては両者を有効とすることを特徴とするポータブル視力検査装置。
- 前記右目用表示部および前記左目用表示部は、前記情報表示において視標よりも拡大した文字により表示を行うことを特徴とする請求項18記載のポータブル視力検査装置。
- 加速度センサを有し、頭部の動きにより前記情報表示と前記視力検査における表示とを切り換えることを特徴とする請求項18記載のポータブル視力検査装置。
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US15/547,555 US10238280B2 (en) | 2015-02-17 | 2016-01-22 | Visual acuity test device and visual acuity test system |
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Cited By (5)
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JP2016209076A (ja) * | 2015-04-30 | 2016-12-15 | 株式会社トプコン | 眼科装置およびその制御方法 |
WO2019050048A1 (ja) * | 2017-09-11 | 2019-03-14 | 株式会社ニコン | 眼科機器、管理装置、及び眼科機器の管理方法 |
CN109709691A (zh) * | 2019-03-15 | 2019-05-03 | 北京艾索健康科技有限公司 | 一种具有检测脊椎疲劳度的智能眼镜 |
JP2021501008A (ja) * | 2017-10-31 | 2021-01-14 | ウェルチ・アリン・インコーポレーテッド | 視力検査 |
WO2023131981A1 (en) * | 2022-01-10 | 2023-07-13 | Remidio Innovative Solutions Pvt. Ltd | Autorefractive device |
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JP6255522B2 (ja) * | 2016-06-09 | 2017-12-27 | 株式会社Qdレーザ | 視野視力検査システム、視野視力検査装置、視野視力検査方法、視野視力検査プログラム及びサーバ装置 |
US11311188B2 (en) * | 2017-07-13 | 2022-04-26 | Micro Medical Devices, Inc. | Visual and mental testing using virtual reality hardware |
US11113985B2 (en) * | 2017-08-30 | 2021-09-07 | Focus Reading Technology Inc. | Visual acuity measurement apparatus |
JP7052800B2 (ja) | 2017-09-11 | 2022-04-12 | 株式会社ニコン | 眼科機器、管理方法、及び管理装置 |
JP6950582B2 (ja) * | 2018-03-01 | 2021-10-13 | 株式会社Jvcケンウッド | 視機能検出装置、視機能検出方法及びプログラム |
IT202000001255A1 (it) * | 2020-01-23 | 2021-07-23 | Nidek Tech Srl | Strumento compatto per l'esame perimetrico del campo visivo |
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WO2019050048A1 (ja) * | 2017-09-11 | 2019-03-14 | 株式会社ニコン | 眼科機器、管理装置、及び眼科機器の管理方法 |
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CN109709691A (zh) * | 2019-03-15 | 2019-05-03 | 北京艾索健康科技有限公司 | 一种具有检测脊椎疲劳度的智能眼镜 |
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US20180020910A1 (en) | 2018-01-25 |
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