JPH03254724A - Ophthalmology device - Google Patents

Abstract

PURPOSE:To allow an inspector to easily operate the title ophthalmology device, in a standing attitude on the side of the device body by arranging a display part between a supporting member for fixing an inspected eye and an inspected eye-positioning operation part and constituting the title ophthalmology device from a display element and an ocular piece in front of the display element and inclining the optical axis of the ocular piece in a specific direction. CONSTITUTION:An observing means 17 is constituted of a small-sized display element 18 and an ocular piece 19, and an image pick-up optical system 20 and an image pick up element 21 are installed in an image pick-up system, and the inspected eye image which is taken- photograph is displayed on the display element 18, and an inspector P observes the image in magnification through the ccular piece 19. The observation means 17 is connected upward for a horizontal plane so that the inspector P performs observation in a standing attitude, and further the observation means 17 is connected so that adjustment can be carried out at a proper angle right and left to the optical axis of the image pick-up optical system 20, so that the inspector P performs observation from the side of a device body 14. With this constitution, the inspector P observes the image of the inspected eye from the side part of the device body 14 in a standing attitude, and for example, an operating rod 15 is operated by the left hand, and the necessary work such as pulling up the eyelid of an inspected person S can be carried out easily by the right hand of one person.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention captures an image of the eye to be examined using an imaging means such as a television camera, aligns the apparatus using an observation means that displays the image, and displays the image of the eye to be examined. The present invention relates to an ophthalmologic apparatus that observes, measures, and photographs a predetermined part of the body.

[Prior Art] An ophthalmological apparatus using a conventional television camera, CRT monitor, etc. is mounted on a movable table 2 that slides back and forth and left and right on a fixed base l, as shown in FIGS. 4 and 5, for example. , CRT monitor 3,
A device main body 4 including a measurement system 4 and a photographing system is mounted, the face of the subject S is fixed on a face fixing table 6 provided at the rear of a fixed base L, and the examiner P is placed in front of the device main body 4. The user operates the operation unit 7 while viewing the CRT monitor 3 to perform necessary alignment, observation, measurement, photography, etc. Generally, such an ophthalmological apparatus is arranged so that the examiner P can easily operate it while sitting on a chair.

As shown in FIG. 5, the subject S fixes his face on the face fixing table 6 in a seated position behind the apparatus main body 4, while the examiner P takes a seated position in front of the apparatus main body 4. , CRT monitor 3
is arranged so that it is at a clear viewing distance, and the operating section 7 is also provided near the CRT monitor 3 for easy operation.

[Problems to be Solved by the Invention] As described above, in the conventional ophthalmological apparatus, since the CRT monitor 3, the operation unit 7, etc. are arranged according to the sitting posture of the examiner P, the main body 4 of the apparatus is large. , or if the examiner P is small in stature, the examiner P may have to lift the examinee's eyelids while holding the operating unit 7, or correct the examinee S's posture. The problem is that it is difficult to In particular, when examining a large number of people in a short period of time, such as in a group examination, the examiner P must frequently perform tasks such as guiding the examinee S into a seat. Conventional devices in which the position of the user is limited to the seated position have the problem of being extremely difficult to operate.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ophthalmological apparatus that can be easily operated by an examiner in a standing position on the side of the main body of the apparatus in order to solve such problems.

[Means for Solving the Problems] In order to achieve the above-mentioned object, an ophthalmological apparatus according to the present invention includes an imaging optical system for imaging a subject's eye, and an image capturing system that displays an image obtained by the imaging optical system. In an ophthalmological apparatus comprising an observation means consisting of a display section, the display section is arranged between a support member for fixing the eye to be examined and an operation section for three-dimensionally aligning the measurement optical system with the eye to be examined. and an eyepiece lens located in front of the display element, and the optical axis of the eyepiece lens has an upward angle with respect to a horizontal plane and is inclined in the horizontal direction with respect to the optical axis of the imaging optical system. This is a characteristic feature.

[Function] The ophthalmological apparatus having the above-described configuration allows the examiner to observe the image of the eye to be examined using the observation means on the side of the main body of the apparatus.
One hand can hold the operating section, and the other hand can perform operations such as alignment, measurement, and photographing while correcting the subject's posture.

[Example] The present invention will be explained in detail based on the example illustrated in FIGS. 1 to 4.

FIG. 1 shows an embodiment of the present invention, in which a measuring system 13 that can be adjusted vertically and an apparatus main body 14 including an imaging system are mounted on a movable base 12 that slides back and forth and left and right on a fixed base 11. As is conventional, an operating section 15 is installed in front of the fixed base 11, and a face fixing table 16 is further provided behind the fixed base 11.

The apparatus main body 14 is provided with an observation means 17 that allows the examiner P to observe the image of the eye to be examined from the side of the apparatus main body 14 in a standing position between the operating section 15 and the subject S. ing. This observation means 17 is composed of a small display element 18 using liquid crystal, for example, and an eyepiece 19, and is an optical system that can relatively adjust the distance between the display element 18 and the eyepiece 19 according to the diopter of the examiner P. A degree correction means is provided.

The measurement system 13 and the imaging system are provided with an imaging optical system 20 and an image sensor 21 for electrically imaging all or part of the eye to be examined, and the image of the eye to be examined taken thereby is displayed on the display element 18. The examiner P can then observe this magnified view through an eyepiece 19 and perform alignment. Here, the reason why a small display element 18 and an eyepiece lens 19 are used as the observation means 17 is to avoid mechanical interference with the measurement system 13 and to prevent the examiner P from adjusting his eyes excessively during observation. This is to make it unnecessary.

As shown in FIG. 1, the observation means 17 is placed in the upper and second positions with respect to the horizontal plane so that the examiner P can observe it in a standing position.
In the figure, it is connected so that it can be adjusted to an appropriate angle to the left or right with respect to the optical axis of the imaging optical system 20 so that the examiner P can observe the apparatus main body 14 from the side. In addition, the observation means 17 has a first
It is desirable that the device be held by a rotation mechanism having a rotation axis perpendicular or horizontal to the main body of the device so that it can be freely moved in the six directions in the figure and in the direction B in FIG. However, the second
If the angle in the B direction in the figure is 90 degrees or more, a misalignment will occur between the operating direction of the operation stick 15 and the moving direction of the eye image on the display element, making it difficult for the examiner P to perform alignment without error. , B direction is preferably within 90 degrees, that is, the optical axis of the eyepiece 19 is at an upward angle with respect to the horizontal plane, and the optical axis of the imaging optical system and the optical axis of the eyepiece 19 are projected onto the horizontal plane. When the axes are imagined, it is necessary that they form an angle within 90 degrees, and that the virtual intersection point exists between the face fixing table 16 and the operation stick 158.

With this configuration, the examiner P can observe the image of the eye to be examined from the side of the apparatus main body 14 while standing, and for example, as shown in FIG. One person can easily perform necessary operations such as raising the eyelids of the subject S or correcting the posture using the right hand.

In addition, since it can be operated from either the right or left side of the device body 14, it is possible to take an easier operating posture when selecting the left or right side of the examinee's eye, for example. can also be adapted arbitrarily.

Note that the viewing means 17 may be replaced with a conventional CRT monitor, or may be used in conjunction with a conventional CRT monitor, while maintaining the conventional operational functions.

FIG. 3 shows another embodiment of the present invention, in which an observation means 17 is detachably attached, and a relatively large liquid crystal monitor 22, for example, is installed as a second display means for direct observation by the examiner P. An example is shown in which it can be attached to the device main body 14. With this configuration, it is possible to arbitrarily select between observing in a seated position as in the past and operating in a standing position using the observation means 17, thereby increasing the degree of freedom in the operating position of the examiner P. Can be made wider.

[Effects of the Invention] As explained above, the ophthalmological device according to the present invention can be operated by the examiner in a standing position and from the side of the device. There is no need to stand or sit each time the device is used, and one person can easily and efficiently operate the device. In addition, the observation means can avoid mechanical interference with the main body of the apparatus, and does not place unnecessary strain on the examiner's eyes.

[Brief explanation of drawings]

Drawings 1 to 3 show an embodiment of the ophthalmologic apparatus according to the present invention, in which FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a perspective view of another embodiment. Figure 4 is a perspective view of the conventional example, and Figure 5 is a perspective view of the conventional example.
The figure is a plan view of a conventional example. 11 is a fixed base, 12 is a movable base, 14 is the main body of the device,
15 is a rubbing rod, 17 is an observation means, 18 is a display element, 19
2 is an eyepiece lens, 20 is an imaging optical system, 21 is an image sensor, 2
2 is a liquid crystal monitor.

Claims (1)

[Scope of Claims] 1. An ophthalmological apparatus comprising an imaging optical system for imaging an eye to be examined, and an observation means comprising a display unit that displays an image obtained by the imaging optical system, wherein the display unit is disposed between a support member for fixing the optometrist and an operation unit for three-dimensionally positioning the measuring optical system to the eye to be examined, and comprising the display element and an eyepiece located in front of the display element;
An ophthalmological apparatus characterized in that the optical axis of the eyepiece has an upward angle with respect to a horizontal plane and is inclined in the horizontal direction with respect to the optical axis of the imaging optical system. 2. The ophthalmologic apparatus according to claim 1, further comprising diopter correction means for relatively varying the distance between the display element and the eyepiece. 3. The ophthalmologic apparatus according to claim 1, wherein the observation means is supported by a rotation mechanism having a rotation axis perpendicular to the apparatus main body. 4. The ophthalmologic apparatus according to claim 1, wherein the observation means is supported by a rotation mechanism having a rotation axis horizontal to the apparatus main body. 5. The ophthalmologic apparatus according to claim 1, further comprising a second observation means having a second display means for direct observation by the examiner in addition to the observation means.