JP2003235810A - Ophthalmologic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure operability of a touch button and easiness in the observation of an eye to be examined. <P>SOLUTION: In the ophthalmologic apparatus for displaying the image of the eye to be examined on a monitor, this apparatus is equipped with a touch panel provided on the screen of the monitor and a display control means for graphically displaying an operate button for inputting a prescribed operate signal from the touch panel while superimposing it on the image of the eye to be examined on the screen of the monitor, and the operate button displays a frame having the transparent inside while superimposing it on the image of the eye to be examined. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic apparatus having a monitor screen for displaying an image of an eye to be examined.

[0002]

2. Description of the Related Art An ophthalmologic apparatus such as a fundus camera has a monitor screen for displaying an image of an eye to be examined. Further, in recent years, an ophthalmologic apparatus, which has a touch panel function on the monitor screen and inputs operation signals on the touch panel, has also appeared.

[0003]

However, on a monitor screen provided with a conventional touch panel, for example, as shown in FIG. 7, the display image of the eye image to be inspected is made small to be different from the display area of the eye image to be inspected. The touch button for inputting the operation signal is displayed in the area of. In this case, since the image of the eye to be inspected is small, it becomes difficult to observe. On the contrary, if the display of the image of the eye to be inspected is enlarged and the touch button is reduced, the touch operation becomes difficult to perform.

The present invention has been made in view of the above problems of the prior art.
A technical object is to provide an ophthalmologic apparatus capable of ensuring the operability of a touch button and the ease of observing an eye image to be inspected.

[0005]

In order to solve the above-mentioned problems, the present invention is characterized by having the following structure. (1) In an ophthalmologic apparatus configured to display an eye image to be inspected on a monitor screen, a touch panel provided on the monitor screen and an operation button for inputting a predetermined operation signal by the touch panel are provided on the eye to be inspected on the monitor screen. Display control means for displaying the image in a superimposed manner on the image. (2) In the ophthalmologic apparatus according to (1), the operation button is displayed by superimposing a frame whose inside is transparent on the eye image to be inspected. (3) In the ophthalmologic apparatus of (2), the display control means displays the characters to be displayed in the frame of the operation buttons by using characters in a transparent font with a border. (4) The ophthalmologic apparatus of (1) to (3) is characterized in that display switching means for switching the display of the operation buttons to non-display is provided. (5) In the ophthalmologic apparatus of (1), a first imaging unit that obtains a diagnostic image of the eye to be inspected, a second image capturing unit that obtains a moving image alignment image for aligning the eye to be inspected, and the operation on the monitor screen. An image switching means for switching the image of the eye to be inspected superimposed on the display of the button between the diagnostic image and the alignment image is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a fundus camera according to the present invention. The fundus camera according to the embodiment includes a photographing unit unit 1 in which an optical system for observation and photographing is housed in a casing suitable for hand-held operation, and a control unit unit 2 in which a photographing light source is arranged while controlling the photographing unit unit 1. The control unit section 2 is provided with a color monitor 3 having a touch panel function. Illumination light from the photographing flash light source of the control unit section 2 is guided to the optical system in the photographing unit section 1 via the fiber bundle 4.

FIG. 2 shows the optical system of the fundus camera. Optical system is observation illumination optical system, shooting illumination optical system, observation
It consists of a photographic optical system. <Observation Illumination Optical System> 11 is an illumination light source for observation such as an infrared light emitting diode, 12 is a diffusion plate, 13 is a dichroic mirror, and the dichroic mirror 13 reflects infrared light and at the same time, visible light for photographing. Has the property of transmitting through. A condenser lens 14 and a slit plate 15 are provided with a pinhole opening and a ring slit opening centered on the optical axis at the center. Reference numeral 16 is a light projecting lens, and 17 is a half mirror. Reference numeral 19 denotes a black absorber, which absorbs the illumination light flux transmitted through the half mirror 17,
Prevents unwanted noise light from entering the observation / shooting optical system. Reference numeral 18 denotes an eye to be inspected.

<Photographing illumination optical system> 31 is a flash light source for photographing, 32 is a condenser lens, and the illumination luminous flux for photographing is guided to the photographing unit 1 through the fiber bundle 4. The photographing illumination optical system in the photographing unit section 1 shares the optical path from the dichroic mirror 13 to the half mirror 17 of the observation illumination optical system.

<Observation / photographing optical system> 21 is an objective lens for observation, and 22 is a photographing diaphragm arranged at a position conjugate with the pupil of the eye 18 to be inspected. Reference numeral 23 denotes a focusing lens, which can be moved in the optical axis direction by a lens moving mechanism (not shown) in order to perform adjustment according to the refractive power of the eye to be inspected. Reference numeral 24 is an image forming lens, and 25 is a dichroic mirror. The dichroic mirror 25 has characteristics of reflecting infrared light and transmitting visible light. Reference numeral 26 is a CCD camera for photographing. 27 is a relay lens for extending the optical path, 28 is a mirror for reversing the mirror image inversion, 2
Reference numeral 9 is an infrared CCD camera for observation.

FIG. 3 shows a block diagram of the control system of this apparatus.
A display control unit 41 controls the display of the monitor 3, and C
Outputs of the CD camera 29 and the CCD camera 26 are input, and also have a function of switching an image displayed on the monitor 3. A touch panel 42 is provided on the screen of the monitor 3,
Detection of the touch position on the touch panel 42 and the like are performed by the touch panel control unit 43. A system control unit 40 is connected to the display control unit 41, the touch panel control unit 43, the storage unit 44, the flash lamp 31, the light source 11, the photographing switch 45, and the like.

The operation of the fundus camera having the above structure will be described below. The light source 11 is turned on during observation. The infrared light flux emitted from the light source 11 is diffused by the diffusion plate 12
After being uniformized by, the light is reflected by the dichroic mirror 13 and converged by the condenser lens 14 to illuminate the entire surface of the slit plate 15. The light flux emitted from the slit plate 15 is incident on the half mirror 17 via the light projecting lens 16, and the light amount thereof is attenuated and reflected to about 1/2 and the subject's eye 18 is examined.
Head to. The light beam limited to the ring shape by the ring slit opening of the slit plate 15 diffuses after the image of the ring slit is once formed in the vicinity of the pupil of the eye 18 to be inspected when the imaging unit section 1 is located at a predetermined working distance. , Infrared invisible light illuminates the fundus of the same or slightly wider field of view as the field of view.

The reflected light from the fundus is reflected by the half mirror 17,
The dichroic mirror 2 passes through the objective lens 21, the photographing diaphragm 22, the focusing lens 23, and the imaging lens 24.
After being reflected by 5, the light is inverted by the mirror 28 by the relay lens 27, and an image is formed on the image pickup element of the CCD camera 29. C
The image taken by the CD camera 29 is displayed on the screen of the monitor 3.

FIG. 4 shows an example of a screen displayed on the monitor 3 in the alignment mode, and an eye image (alignment image) 80 illuminated by infrared illumination light is displayed at the center of the screen. The initial screen when the power is turned on is in the alignment mode. A touch panel 42 is provided on the monitor 3, and touch buttons 5 are displayed on the screen of the monitor 3.
The display of 0, 51, etc. is controlled by the display control unit 41.
On the touch panel 42, the operator touches the touch button 5
When the inside of the area frame such as 0 is touched with a finger or the like, the touch position is detected by the touch panel control unit 43, and an operation signal is input to the system control unit 40. In other words,
The touch buttons 51 and the like are laid out and displayed on the screen of the monitor 3 so as to correspond to touch positions at which individually specified operation signals are input.

The following touch buttons are prepared on the alignment screen of FIG. Touch button 5
Touching 0 switches to a screen where the patient ID number can be entered and selected. When the touch button 51 is touched, the screen is switched to a screen for displaying a list of images stored in the storage unit 44 as thumbnail images (reduced images). Touch button 5
Touching 2 switches to the screen for entering patient data. Touching the touch button 53 switches to the environment setting screen. The touch buttons 54a and 54b are buttons for adjusting the amount of flash light for photographing, and the touch button 5
Reference numerals 5a and 55b are buttons for adjusting the observation light amount (light amount of the light source 11). Indicators 56 and 57 indicate the adjustment states of the light amount, respectively.

The touch button 50 and the like are displayed by superimposing a button frame and a character indicating a touch area on the eye image 80 (in the case of FIG. 4, a moving image at the time of alignment). In addition, the touch button is graphically displayed with a frame having a transparent inside, and the eye image 80 inside the button is observed in a transparent state. Therefore, the display area of the eye image 80 can be enlarged by effectively utilizing the screen area of the monitor 3, which facilitates observation and alignment. Further, since it is not necessary to reduce the size of the touch buttons, it is easy to operate them. When the inside of the touch button is displayed in a transparent frame, the image is not filled with the touch button, so that the annoyance of the touch button is reduced. Since the background of the eye image 80 is black, it is preferable that the frame display of the touch button 50 and the like and the characters in the frame are displayed in color such as blue so that they can be distinguished from the captured image and the background thereof.

The examiner observes the alignment image shown in FIG.
After moving the focus lens 23 to bring the fundus into focus, the photographing switch 45 is pressed to cause the flash light source 31 to emit light. The visible reflected light flux from the fundus illuminated by the visible light is incident on the dichroic mirror 25 via the objective lens 21, the photographing diaphragm 22, the focusing lens 23, and the imaging lens 24, similarly to the fundus reflected light flux by the infrared light. To do. Since the dichroic mirror 25 transmits the visible light flux, the visible fundus reflected light flux forms a fundus image on the image pickup element surface of the CCD camera 26 by the imaging lens 24.

When the fundus image is obtained by the CCD camera 26, the display control unit 41 temporarily stores it in the image memory 41a and displays the still image which is the image taken by the CCD camera 26 on the screen of the monitor 3 (image mode). ).

FIG. 5 shows an example of a screen in the image mode, in which a color fundus image 81 is displayed in the center. Even in the image mode screen, the touch buttons for inputting various operation signals are the fundus image 81.
Is displayed as a graphic superimposed on. Furthermore, since the inside of the button frame is transparent, the fundus image below it can be seen through. For this reason, the display of the touch buttons is not very disturbing, the fundus image 81 displayed on the screen can be observed without feeling a sense of pressure, and the peripheral portion thereof can be easily observed.

The following touch buttons are prepared in the image mode. When the touch button 60 is touched, the operation state of the device becomes the alignment mode.
When the touch button 61 is touched, the display is switched to the thumbnail image display. When the touch button 62 is touched, the mode is switched to the zoom mode in which the photographed fundus image 81 is enlarged and displayed. When the touch button 63 is touched, the fundus image 81 displayed on the screen is stored in the storage unit 44. In addition to the touch button, an ID number display 71 and a mode display 72 indicating the image mode are combined and displayed as graphic characters in the display of the captured image. Further, the indicators 56 and 57 for the amount of photographing light and the amount of observation illumination light set at the time of photographing are displayed graphically as in the alignment mode of FIG.

Further, in the screen display of the monitor 3 (FIGS. 4 and 5), such touch buttons and graphic display of information are erased by touching the touch button 70 at the lower left of the screen (set to the non-display state). ). As a result, it is possible to observe in detail a captured image in which characters and touch buttons are not compositely displayed. In addition, in the present embodiment, only the touch button 70 is displayed even in the non-display state, and touching the touch button 70 again causes the touch button or the like that has been erased to be displayed again. Can be input. In the non-display state, the touch button 70 itself may be erased. In this case, touching any place on the touch panel 4 may cause the erased touch button or the like to be displayed again.

In the above, the touch buttons 50, 60
The characters (including symbols and marks) to be displayed in, etc. are assumed to be a normal filled font, but this character may be a transparent font with a border. FIG. 6 shows an example of the touch buttons 52 and 53. When a character is displayed in a large size, it is possible to observe the image of the eye to be inspected by making the character with only the edging.

Further, although the fundus camera has been taken as an example in the above embodiments, an apparatus for photographing an anterior segment image of a subject's eye or a cross-sectional image optically cut by slit light may be used.

[0023]

As described above, according to the present invention,
By effectively utilizing the display area of the monitor screen, the operability of the touch button and the easiness of observing the eye image can be secured. In addition, since the touch button is displayed in a transparent frame inside, the display of the touch button can be suppressed from being bothered, and the eye image to be inspected can be observed with less pressure.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a fundus camera according to the present invention.

FIG. 2 is a diagram showing an optical system of a fundus camera.

FIG. 3 is a block diagram of a control system of the fundus camera.

FIG. 4 is an example of a monitor screen in an alignment mode.

FIG. 5 is an example of a monitor screen in the image mode.

FIG. 6 is a diagram illustrating a case where a character on a touch button is in a transparent font with a border.

FIG. 7 is a diagram showing a screen of a touch panel in a conventional device.

[Explanation of symbols]

1 Shooting unit 2 Control unit section 3 monitors 26 CCD camera for photography 19 Infrared CCD camera for observation 40 System control unit 41 Display control unit 42 touch panel 43 Touch panel control unit 80, 81 Eye image 50 touch buttons

Claims (5)

[Claims] 1. An ophthalmologic apparatus adapted to display an eye image to be inspected on a monitor screen, wherein a touch panel provided on the monitor screen and an operation button for inputting a predetermined operation signal by the touch panel are provided on the monitor screen. Display control means for graphic display by superimposing on the eye image to be inspected,
An ophthalmologic apparatus comprising: 2. The ophthalmic apparatus according to claim 1, wherein the operation button is displayed by superimposing a frame whose inside is transparent on an eye image to be inspected. 3. The ophthalmologic apparatus according to claim 2, wherein the display control means displays the characters to be displayed in the frame of the operation buttons by characters in a transparent font with a border. 4. The ophthalmic apparatus according to claim 1, further comprising display switching means for switching display of the operation button to non-display. 5. The ophthalmologic apparatus according to claim 1, wherein first imaging means for obtaining a diagnostic image of the eye to be inspected, second imaging means for obtaining an alignment image of a moving image for aligning the eye to be inspected, on the monitor screen. An ophthalmologic apparatus comprising: an image switching unit that switches an eye image to be inspected, which is superimposed on the display of the operation button, between the diagnostic image and the alignment image.