JP2516134Y2 - Ophthalmic equipment with indicators - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic apparatus having a positioning means for an optometry apparatus with respect to an eye to be examined.

[0002]

2. Description of the Related Art Conventionally, as an index used for alignment with an eye to be inspected, it is used when an eye examination apparatus is moved and aligned in order to position the eye to be examined on an extension of an optical axis of an objective lens. It has been widely used in ophthalmologic equipment such as being used for determining whether the eye to be inspected is the right eye or the left eye.

Further, in a fundus camera, which is a kind of ophthalmologic equipment, it is necessary to precisely match the working distance between the eye to be inspected and the objective when the eye examination apparatus is moved to match the eye examination apparatus. Met. Various detecting means have been proposed for that purpose, but all of them have been performed using optical and electrical means, for example, by looking into a finder or checking a monitor.

[0004]

In the prior art as described above, when setting the general inspection position of the eye examination apparatus with respect to the eye to be inspected, when moving the eye examination apparatus, front and rear, left and right eyes and the eye examination apparatus are separated from each other. The position of the optometry device was set while visually checking the interval and simultaneously looking into the finder or the like.

Such an operation can be relatively quickly set by a skilled examiner who is familiar with ophthalmologic equipment, but when a beginner performs this operation, it is a very time-consuming operation. There was a problem. The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an ophthalmologic apparatus that enables a beginner to easily set a rough examination position.

[0006]

In order to achieve the above object, the present invention provides a slide table on which a main body of an optometry apparatus including an objective lens arranged to face an eye to be examined is mounted and which is freely movable on a table. Equipped ophthalmic equipment, placed on the table
On the table and the first index indicating the approximate position of the right eye.
A second index that is arranged and indicates a general position of the left eye, and the slide table
Is provided on the first index or by the movement of the slide table.
An alignment index for alignment with the second index,
And the first index and the second index are interpupillary distances.
Placed apart from each other, and substantially parallel to the pupil direction of the subject.
Arrangement is a means for solving the problem.

[0007]

In the present invention, the right eye is placed on the table on which the slide table for moving the optometry apparatus of the ophthalmologic apparatus slides.
Also, since the first and second indicators indicating the rough examination position of the left eye are provided and correspond to the indicators provided on the slide base,
By matching the first or second index , the right eye can be easily
Alternatively, the general inspection position of the left eye can be set. Also, the first finger
Whether the objective lens is the subject between the target and the second index.
Since the curved portion is provided to allow the subject to escape, dangerous operation and extra movement for the subject can be eliminated.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a diagram for explaining an embodiment using a fundus camera as an example of an ophthalmologic apparatus, showing a right side view thereof, and FIG.
Shows its plan view. In FIGS. 1 and 2, the optometry apparatus main body 2 including the objective lens 1 and the finder 3 is integrally supported by the slide base 4 via a support member. The slide base 4 is placed on the table 8 and can be freely moved on the table 8 by the operating rod 5. A chin rest 7 is fixedly mounted on the table 8 and is arranged so that the face of the subject on which the chin is placed faces the objective lens 1. A reference index 9 is provided on the upper surface of the table 8, and the index 6 is provided at a predetermined position of the slide base 4 that can be aligned with the reference index 9.

FIG. 3 is a diagram for explaining the reference index,
The dimension A is set to the standard value of the interpupillary distance. The dimension B is the right eye approximate position R in order to correspond to the individual difference in the interpupillary distance.
Alternatively, the optometry apparatus main body 2 roughly arranged at the left eye approximate position L
Shows the length of the line for moving the eye to the left and right, and the dimension C is for correcting the working distance between the objective lens 1 of the optometry apparatus main body 2 arranged at the approximate position R or L and the eye to be inspected. Shows the length of the line for. In addition, the curved portion P indicates a line taken into consideration so as to allow the objective lens 1 to escape so that the objective lens 1 and the subject's nose do not come into contact with each other when changing the left and right of the subject's eye.

The operation of the fundus camera configured as described above will be described below. When the subject places his or her chin on the chin rest portion 7, the examiner moves the slide base 4 by the operating rod 5 to match the approximate position R of the index 6 and the reference index 9 with the right eye. As a result, a standard rough position of the objective lens 1 with respect to the right eye is set. However, in practice, the interpupillary distance of the subject has individual differences, and thus it is usually necessary to correct the position from the standard position. This correction is performed by moving the slide base 4 so that the index 6 is moved along the line indicated by the dimension B. Further, since the distance from the objective lens 1 to the eye to be examined also varies from person to person, it is necessary to correct this method. This is performed by moving the slide base 4 in the same manner as described above along the line indicated by the dimension C.

When the rough position is set in this way, the examiner sets the optometry devices 1, 2, and 3 at the final examination position while looking through the finder 3. When the optometry of the right eye is completed, the examiner moves the optometry apparatus 1, 2, 3 to the left eye position by sliding the slide table 4 to perform the optometry of the left eye. At this time, the index 6 is moved along the curved portion P of the reference index 9 so that the index 6 is aligned with the approximate position L of the left eye. Thereafter, the left eye to be inspected is performed in the same manner as the right eye to be inspected.

[0012]

As described above, according to the invention of claim 1 ,
Since the initial right eye or left eye optometry position is provided with a simple index, even a beginner can easily set it. Ma
According to the invention of claim 3, the first index and the second index are
Since the curved portion is provided between them and the optometry apparatus is moved along this curved portion, there is also an advantage that contact between the face of the subject and the objective lens due to the carelessness of the examiner can be prevented.

[Brief description of drawings]

FIG. 1 is a right side view of an embodiment of an ophthalmologic apparatus according to the present invention,

FIG. 2 is a plan view of an embodiment of an ophthalmologic apparatus according to the present invention,

FIG. 3 is a diagram illustrating a reference index.

[Explanation of symbols for main parts]

 6 indicators 9 indicators for standards

Claims (3)

(57) [Scope of utility model registration request] 1. An ophthalmologic apparatus having a slide table on which a main body of an optometry apparatus including an objective lens arranged facing an eye to be examined is mounted and which is freely movable on the table, the ophthalmologic apparatus being disposed on the table. First finger showing the approximate position of the right eye
And a second finger placed on the table and showing the approximate position of the left eye
And a slide, which is provided on the slide and moves by the slide.
Alignment to align with 1 index or the 2nd index
And a second index, and the first index and the second index are arranged at a distance between the pupils.
Placed in parallel with the pupil direction of the subject.
Equipment for ophthalmology, characterized in that that. (2) The optical axis of the objective lens is the right eye of the subject.
When it is approximately in the middle between the left eye and the left eye, the alignment index is
Note that the first index and the second index should be at a substantially intermediate position.
The ophthalmic device according to claim 1, which is characterized in that 3. Between the first index and the second index,
A curved portion for allowing the objective lens to escape from the subject
The ophthalmologic machine according to claim 1, wherein the ophthalmologic machine is arranged.
vessel.