JP4226575B2 - Optometry display device - Google Patents

Description

  The present invention relates to an optometric display device used when performing optometry of an eye to be examined.

  2. Description of the Related Art Conventionally, in an optometry apparatus that performs optometry of an eye to be examined, for example, when performing a near vision examination of the eye to be examined, as shown in FIG. The near vision target plate 103 printed on the eye is suspended and made visible to the subject's eye via the optometry unit 101. In addition, when a naked eye examination is performed on an eye to be examined, the examiner also holds the near vision target plate 103 in his / her hand for viewing the eye to be examined.

  Further, as shown in FIG. 15, a support bar 111 is attached to the optometry unit 101, and, for example, several near vision targets are attached to the support bar 111 in a circular arrangement. A rotation driving unit 113 that rotates the target disc 112 and an electric moving mechanism unit that supports the rotation driving unit 113 and moves the rotation driving unit 113 in the arrow direction shown in FIG. 114, and optionally changing the distance from the eye to be examined for viewing the near vision target on the near vision target disc 112 via the optometry unit 101, and switching a plurality of near vision targets to It was also used for visual inspection.

  However, in the case of the conventional device as described above, in the case of the suspension method of the near target target plate 103 shown in FIG. 14 or the electric drive method of the near target target disc 112 shown in FIG. However, if a variety of near vision targets are to be mounted, the size of each near vision target must be reduced due to the relationship with the dimensions of the near vision target plate 103 and the near vision target disc 112. There is a problem that the visual field of the eye to be examined with respect to the near vision target becomes narrow and lacks practicality.

  Further, in the case of the hanging method of the near vision target plate 103 shown in FIG. 14 or in the case of the hand-held method, the weight and shape of the near vision target plate 103 are inevitably limited. There is a problem that the number of targets is limited.

  The present invention has been made in view of the above-described circumstances, and can display a large number of targets regardless of the near vision target or the distance vision target. An object of the present invention is to provide an optometric display device that can be used.

The optometric display apparatus according to the invention of claim 1 has a main body configured using a flat panel display, and allows the subject to hold in his / her hand,
A display unit for displaying optometry information ;
And a distance measuring sensor for measuring the distance between said subject,
A grip detection unit that detects a grip state of the subject's hand is disposed in the grip region of the subject's hand, and a power source that controls the power source of the main body to be on based on a detection signal detected by the grip detection unit It has a control part .

  According to a second aspect of the present invention, the optometric display device displays distance information measured by the distance measuring sensor on the display unit.

  The operation of the present invention will be described below.

According to the optometric display device according to the first aspect of the present invention, since the main body is configured using a flat panel display and the subject can hold in the hand, the main body is thinned. Various types of optometry information including a near vision target and a distance vision target are displayed on the display unit of the main body, and the distance from the main body when the subject holds the hand by the distance measuring sensor can be measured. Furthermore, since the power source is turned on only when the subject holds it, useless power consumption can be eliminated.

  According to the optometric display device according to the second aspect of the present invention, the distance information measured by the distance measuring sensor is displayed on the display unit of the main body, whereby the distance to the subject can be known.

The present invention has the following effects.
According to the first aspect of the present invention, the main body is thinned, various optometry information including the near vision target and the far vision target is displayed on the main body, and the subject holds in his / her hand. Thus, it is possible to provide an optometric display device capable of measuring a distance from a subject using a distance measuring sensor. Furthermore, since the power source is turned on only when the subject grips it, wasteful power consumption can be eliminated.

  According to the second aspect of the present invention, since the distance measured by the distance measuring sensor is displayed on the display unit, it is possible to know the distance at the time of optometry.

Embodiments of the present invention will be described below in detail with reference to the drawings.
(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS.

  1 is a perspective view showing a configuration of an optometry apparatus using the thin optometry display apparatus 1C according to Embodiment 1, FIG. 2 is a plan view of a surface opposite to the subject of the optometry display apparatus 1C, and FIG. 3 is an optometry. FIG. 4 is a block diagram showing a configuration of an optometry apparatus including the display device 1C, and FIG. 4 is an explanatory diagram showing a change from a non-use state of the optometry display device 1C to a power-on state.

  The optometric display device 1C according to the first embodiment is characterized in that it is configured as a hand-held type of a subject as shown in FIG. That is, as shown in FIG. 2, the optometry display device 1 </ b> C is configured to detect gripping in a gripping region of the subject's hand in the main body 61 that is configured using a flat panel display and can display optometry information, that is, in the lower corner of the main body 61. A pressure-sensitive sensor 62 is disposed, a distance measuring sensor 13 is disposed above the display unit 12 of the main body 61, and an infrared light receiving unit 14 is disposed on the surface of the main body 61 opposite to the display unit 12. In FIG. 1, 3 is a support, 7 is a main body operation means having a key input unit 5 and a main body display unit 6, and 15 is a remote controller for remotely operating the optometric display device 1C.

  Next, the overall configuration of the optometry apparatus including the optometry display apparatus 1C will be described with reference to FIG.

  The optometry display device includes a main body CPU 30 that performs overall control. The optometry unit 4, the key input unit 5 of the main body operating means 7, and the main body display unit 6 are connected to the main body CPU 30 to control these. ing.

  The optometry display device 1C includes a display CPU 31 that controls the entire optometry display device 1C. The display CPU 31 includes a display unit 12, and an optical method for measuring the distance between the device and the subject E, for example. The distance measuring sensor 13 and the infrared light receiving unit 14 used are connected, and a number of near targets such as a Landolt ring for near field inspection and a distance target for a distance inspection such as a number of Landolt rings are set to 0. A visual target memory 32 stored in association with the numerical values of visual acuity values such as .1, 0.2 is connected. The display size of the near vision target and the distance vision target on the display unit 12 is, for example, a distance of 30 cm from the eye E in the case of the near examination, and a distance of 5 m from the eye E in the case of the distance examination. Of course, the display CPU 31 controls each display to have an appropriate size.

  Further, as shown in FIG. 3, the display CPU 31 of the optometric display device 1 </ b> C has a pressure sensor 62 for detecting the gripping state of the subject's hand, and the power source of the main body based on the detection signal from the pressure sensor 62. A power supply control unit 63 for controlling 60 to an on state is added. It is also possible to use switches such as a micro switch instead of the pressure sensor 62.

  According to the optometric display apparatus 1 </ b> C of the first embodiment, the power supply control unit 63 supplies power to the main body 61 based on the detection signal from the pressure sensor 62 when the main body 61 is gripped by the subject's hand. 60 is changed from the off state to the on state, and a visual target for near-field inspection is displayed on the display unit 12 as shown in FIG. Thereby, useless power consumption when the main body 61 is not used can be eliminated. It is more preferable that an auto power off function for turning off the power supply 60 after a predetermined time elapses after the subject's hand has moved away from the pressure sensor 62 is incorporated in the main body 61.

  Also, a displacement sensor that turns the power supply 60 from the off state to the on state when the main body 61 is inclined from the horizontal arrangement state for visual recognition can be used.

  Further, according to the optometric display apparatus 1C of the first embodiment, the distance to the eye E is measured by the distance measuring sensor 13, and the distance measurement information of the distance measuring sensor 13, for example, a value of 30 cm is shown in FIG. Since it is displayed on the display unit 12 together with the Landolt ring as shown, it is possible to make the subject clearly recognize the distance between the subject eye E and the near vision target when performing the near vision examination of the subject eye E.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is a front view showing a configuration of a thin handheld optometry display device 1D using the flat pallet display of the second embodiment, and FIG. 6 is a thin optometry display using the flat pallet display of the second embodiment. FIG. 7 is a front view showing a display example of the apparatus 1D, and FIG. 7 is a block diagram showing a configuration of the optometry display apparatus 1D.

  In the second embodiment of the present invention, an imaging camera 72 that captures an image of the face of the subject is arranged above the display unit 12 of the main body 71 that is a flat pallet display as the optometric display device 1D. The distance measuring sensor 13 is arranged near the camera 72. An infrared light receiving unit 14 that receives an infrared signal from the remote controller 15 is disposed on the opposite surface of the main body 71.

  In the optometry display apparatus 1D, an image processing unit 76 including three interfaces 73, 74, and 75 is connected to the display CPU 13.

  The imaging camera 72 is connected to the interface 73, and a ball grab machine 77 and a frame reader 78 are connected to the interfaces 74 and 75, respectively. The lens image information of the spectacle lens from 77 is taken into the image processing unit 76, and these composition processes are performed.

  According to the optometry display device 1D, the image processing unit 76 captures the face image of the subject by the imaging camera 72 provided in the main body 71 while the subject holds the optometry display device 1D. The image information of the face image from the imaging camera 72, the frame image information of the spectacle frame from the frame reader 78, and the lens image information of the spectacle lens from the ball-throwing machine 77 are combined and processed in the display unit 12 of the main body 71. As shown in FIG. 6, a face image of the subject wearing the spectacle frame wearing the spectacle lens is displayed. Thereby, it is possible to execute a simulation for visually recognizing an image of the subject wearing the spectacle frame in which the spectacle lens created by the ball grinder 76 is worn on his / her face. Serviceability at the time of selection is improved.

  In this case, on the display unit 12, the type of eyeglass frame (metal) based on the image of the subject, the frame image information of the eyeglass frame from the frame reader 78, and the lens image information of the eyeglass lens from the ball grinder 77. Frame data, cell frames, combination frames, rimless frames, nyroll frames, etc.) and lens data such as spherical power of spectacle lenses, characters such as thickness and diameter, and numerical information can also be displayed together.

(Embodiment 3)
Next, a third embodiment of the present invention will be described with reference to FIGS.

  FIG. 8 is a block diagram showing the configuration of the optometry display device 1E according to the third embodiment, FIG. 9 is a front view showing a display example of the optometry display device 1E according to the third embodiment, and FIG. 10 is another table of the third embodiment. It is a front view which shows an example. In the optometry display device 1E according to the third embodiment, the following description will be given on the assumption that the main body 71 having the same configuration as that of the optometry display device 1D according to the second embodiment is used.

  In the optometric display apparatus 1E according to the third embodiment, a video tape recorder 79 as an image storage means is used in place of the frame reader 78 in the optometric display apparatus 1D according to the second embodiment shown in FIG. A large number of spectacle frame images are stored in advance, and a large number of spectacle frame image information is sent to the image processing unit 76.

  According to the optometry display device 1E, the image processing unit 76 captures the face image of the subject by the imaging camera 72 provided in the main body 71 while the subject holds the optometry display device 1E. Is configured to combine the imaging information of the face image from the imaging camera 72 with the frame image information of the spectacle frame from the video tape recorder 79 and the lens image information of the spectacle lens from the ball-throwing machine 77, and display the display unit 12 of the main body 71. Further, as shown in FIG. 10, a face image of the subject wearing the spectacle frame wearing the spectacle lens is displayed.

  In this case, prior to the display of the face image of the subject wearing the spectacle frame, a frame image of a number of spectacle frames from the video tape recorder 79 is displayed on the display unit 12 of the main body 71 as shown in FIG. The information is displayed in, for example, a quadrant, and any desired spectacle frame is selected by the selection of the examiner or the subject. Thereafter, the display unit 12 of the main body 71 is displayed in the same manner as described above in FIG. As shown, it is also possible to display a face image of a subject wearing a spectacle frame in which he / she wears a spectacle lens.

  Thereby, it is possible to perform a simulation for the subject to visually recognize an image in a state in which he / she wears any favorite spectacle frame in which his / her spectacle lens is worn on his / her face. Serviceability is improved.

  In the second and third embodiments described above, the display unit 12 may be configured using a flat panel color liquid crystal display. With such a configuration, when the subject's own face image in a wearing state of any favorite spectacle frame wearing a spectacle lens is shown to the subject, a face image closer to the actual can be displayed, A feeling of reality when selecting the eyeglasses of the examinee is increased, and the serviceability can be further improved.

(Embodiment 4)
Next, a fourth embodiment will be described with reference to FIGS.

  In the fourth embodiment, the following description will be given on the assumption that the main body 71 having the same configuration as in the second and third embodiments is used.

  In the fourth embodiment, taking into account the diversification of the nationalities of the subjects, as shown in FIG. Considering subjects who use A, B, and C English letters with the size corresponding to 0.3 (the letters of other languages are the same) or use a word processor or the like as shown in FIG. For example, a mountain character is displayed in a size corresponding to 12 points, 10.5 points, and 8 points, and further, for example, an elderly person reading a newspaper is taken into consideration, as shown in FIG. The newspaper article is displayed on the part 12 in the size of the display character of the newspaper. The distance measurement information (for example, 30 cm) by the distance measurement sensor 13 is displayed on the display unit shown in FIGS.

  According to the fourth embodiment, it is possible to perform optometry for various subjects by diversifying the display content of the display unit 12 to foreign language characters such as English characters, word processor characters, newspaper characters, and the like. There are advantages.

  Such diversification of the display form of the fourth embodiment can be similarly applied to the cases of the first to third embodiments.

1 is a perspective view of an optometry apparatus including an optometry display apparatus according to Embodiment 1 of the present invention. It is a rear view of the optometric display apparatus of Embodiment 1 of this invention. It is a block diagram of the optometric display apparatus of Embodiment 1 of this invention. It is operation | movement explanatory drawing of the optometry display apparatus of Embodiment 1 of this invention. It is a front view of the optometric display apparatus of Embodiment 2 of this invention. It is a front view which shows the example of a display of the optometry display apparatus of Embodiment 2 of this invention. It is a block diagram of the optometric display apparatus of Embodiment 2 of this invention. It is a block diagram of the optometric display apparatus of Embodiment 3 of this invention. It is a front view which shows the example of a display of the spectacles frame in the optometry display apparatus of Embodiment 3 of this invention. It is a front view which shows the example of a display of the spectacles wearing state in the optometry display apparatus of Embodiment 3 of this invention. It is a front view which shows the example of a display of the English character in the optometry display apparatus of Embodiment 4 of this invention. It is a front view which shows the example of a display of the word processor character in the optometry display apparatus of Embodiment 4 of this invention. It is a front view which shows the example of a display of the newspaper character in the optometry display apparatus of Embodiment 4 of this invention. It is a perspective view which shows the near-field target plate in the case of the near-field test | inspection in the conventional optometry apparatus. It is a perspective view which shows the other example in the case of the near examination in the conventional optometry apparatus.

Explanation of symbols

1C, 1D, 1E Optometric display device 11 Main body 12 Display unit 13 Distance sensor 14 Infrared light receiving unit 15 Remote controller 31 Display CPU
32 Target memory 60 Power source 62 Pressure sensor 63 Power source controller

Claims (2)

It has a main body configured using a flat panel display, which allows the subject to have in his hand,
A display unit for displaying optometry information ;
And a distance measuring sensor for measuring the distance between said subject,
A grip detection unit that detects a grip state of the subject's hand is disposed in the grip region of the subject's hand, and a power source that controls the power source of the main body to be on based on a detection signal detected by the grip detection unit An optometric display device comprising a control unit .   The optometric display apparatus according to claim 1, wherein distance information measured by the distance measuring sensor is displayed on the display unit.

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