JPH08299274A - Ophthalmoscopic apparatus - Google Patents

Abstract

PURPOSE: To enable an inspector to make operation from any position of an apparatus. CONSTITUTION: The inspector presses the face of a testee S to a forehead pad 7 and operates an operation switch 17 of an operating means 14 to transmit an IR signal from its light projecting section 15 to a display means 9. This signal is received in a photodetecting section 13 and is communicated to a control means 6. A luminous flux is projected to the eye E to be examined from the ophthalmoscopic optical system 3 of an ophthalmoscopic section 4 by the control signal of the control means 6 and the reflected light thereof is picked up by a television camera 2 which projects the image E' of the eye to be examined on an image display section 11 of a display means 9 freely rotatably by a shaft part 10. The inspector moves the forehead pad 7 and adjusts the position in the optical axis O1 direction of the eye to be examined by turning a knob 8. The inspector executes alignment by operating the track ball 16 of the operating means 14 and moving the ophthalmoscopic section 4 in a direction perpendicular to the optical axis O1 by a driving means 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optometry apparatus used for measuring the refractive power of an eye to be inspected in an ophthalmology clinic or an eyeglass store.

[0002]

2. Description of the Related Art Conventionally, in an optometry apparatus for measuring the refractive power of an eye to be inspected, the examinee's face is fixed to a face receiving means provided on the front surface of the apparatus, and the examiner is positioned behind the apparatus. While observing the monitor fixed to the main body, the optometry measurement is performed by operating a dedicated operating means such as an operating rod fixed to the main body.

[0003]

However, in the above-mentioned conventional example, the operating means for moving the device is dedicated to the device, and the monitor for observing the eye to be inspected and the operating means are fixed at predetermined positions of the main body. Therefore, there is a problem that the examiner can operate the device only from a specific position and the installation place of the device is restricted.

It is a first object of the present invention to provide an optometry apparatus which can be operated from any position and which has a wide selection range of installation locations and which requires a small floor area.

A second object of the present invention is to provide an optometry apparatus having a simple structure which can be operated by an image display screen.

[0006]

An eye examination apparatus according to a first aspect of the present invention for achieving the above object comprises an eye examination unit including an image pickup unit for an eye to be examined, a drive unit for moving the eye examination unit, and a housing. A face receiving member fixed to the body, an image display unit that is rotatably attached to the housing unit and displays an image of an eye to be inspected by the imaging unit, and a control unit that controls the eye examination unit, the driving unit, and the image display unit. And operating means for operating the control means, and communication means for transmitting and receiving signals between the control means and the operating means.

An optometry apparatus according to a second aspect of the present invention includes an optometry section including an optometry section, drive means for moving the optometry section, and image display means for displaying an optometry image by the imaging section. And operating means for operating the drive means, wherein the operating means also serves as an operation for selecting a plurality of operation switches displayed on the image display means.

[0008]

In the optometry apparatus of the first invention having the above-mentioned structure, the eye to be inspected is imaged by the image pickup means, and the image of the eye to be inspected at that time is displayed on the image display means rotatably attached to the housing. A signal from the operating means is transmitted to the control means of the apparatus through the communication means, and the optometry section is driven by the driving means to perform optometry.

In the eye examination apparatus of the second invention, the eye to be inspected is picked up by the image pickup means, the image of the eye to be inspected at that time is displayed on the image display means, and the driving means is driven by the operation means to drive the eye examination portion and the eye to be inspected. The plurality of operation switches are displayed on the screen of the image display means by the same operation means, and the operation switches are selected to perform the optometry measurement.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the illustrated embodiments. FIG. 1 is a block diagram of an objective or subjective refractive power measuring device according to the first embodiment, in which a casing 1 of the device is arranged on an optical axis O1 toward an eye E to be inspected and an anterior segment imaging television. An optometry section 4 including a camera 2, an optometry optical system 3, etc., a driving means 5 for moving the optometry section 4 in two dimensions or three dimensions for alignment, a control means 6 for controlling the operation of the apparatus, etc. Is stored. A forehead pad 7 for fixing the face is provided on the subject S side, and the forehead pad 7 can be adjusted in the optical axis O1 direction by turning a knob 8.

Display means 9 is rotatably attached to the upper part of the casing 1 by a shaft portion 10.
C, which displays the eye image E'inspected by the TV camera 2,
Image display unit 11 such as RT, printer 12, operating means 13
A light receiving unit 13 is provided for communication with the light receiving unit 13, and the light receiving unit 13 receives a signal from an operation means 14 provided outside.

Operation means 14 for an examiner to operate the apparatus
Includes a light projecting unit 15 for communicating with the control unit 6, a trackball 16 for moving the optometry unit 4 by the driving unit 5 for alignment with the eye E to be inspected, and an operation switch 1.
7 are provided. Further, the operating means 14 has a built-in encoding means for encoding a communication signal such as a logic circuit or a one-chip microcomputer so that the signals of the trackball 16 and the operation switch 17 are encoded and transmitted by infrared rays. It has become.

The face of the subject S is brought into contact with the forehead rest 7, and the examiner operates the operation switch 17 of the operating means 14 to transmit an infrared signal from the light projecting portion 15 to the display means 9. Then, the light receiving unit 13 of the display unit 9 receives and communicates with the control unit 6. The control signal from the control unit 6 including a computer controls the optometry optical system 3 of the optometry unit 4 for optometry and the driving unit 5 for alignment. The image of the eye E to be inspected is taken by the television camera 2 and the image E ′ of the eye to be inspected is displayed on the image display unit 1 of the display unit 9.
Project to 1. The examiner rotates the knob 8 to move the forehead support 7 so that the eye E'to be in focus, and adjusts the position of the eye E to be examined in the optical axis O1 direction. Further, the trackball 16 of the operating means 14 is operated, and the driving means 5 moves the eye examination unit 4 to the optical axis O1.
Align vertically by moving it against.

FIG. 2 shows another screen of the image display section 11.
By operating the operation switch 17, it is possible to switch from the screen of the eye image E ′ to the screen of various switches P displayed on the screen by computer graphics, and the cursor H for selecting these switches P is also displayed. . When the cursor H is displayed, the trackball 16 is switched to move the cursor H. Inspector is trackball 1
6 is operated to select one of the switches P, and the switch 17
To execute that function.

As the switch P, for example, the left and right eyes L,
The driving means for moving the optical members in the optometry optical system 3 is controlled by the spherical power B of R, the astigmatic power C, the astigmatic angle A, and the like. It may be displayed together with the eye image E ′. However, in this case, the function of the trackball 16 is switched and used by the switch provided in the operation means 14. The trackball 16 has a plurality of functions so that the operation means 14
Can be made smaller.

If the light receiving section 13 is arranged on the front surface of the display means 9, the operator will always face the examiner no matter which direction the display means 9 is operated, which is suitable for communication operation. Moreover, the same can be said for the printer 12, and since the printer 12 is always oriented toward the examiner, it is easy to operate.

FIG. 3 is a block diagram of the second embodiment. The housing 20 has the same control means as that shown in FIG. 1, and the subject S has a forehead rest 21 and a chin rest 22. Composed face cradle 2
3 is fixed. A driving means 24 such as a stepping motor is placed on the upper part of the housing 20.
An optometry section 25 including an anterior segment imaging unit and an optometry optical system similar to that shown in FIG. A display means 27 is rotatably fixed to the housing 20 via a shaft portion 26, and an operating means 30 having a trackball 28 and an operating switch 29 is provided outside the operating means 3.
0 and the control means of the housing 20 are connected by a communication line 31.

With the above construction, the operation switch 29 of the operation means 30 is operated in the same manner as in the first embodiment. The image E ′ of the eye to be examined is displayed on the display means 27, and the trackball 28 is displayed.
Is operated to move the optometry section 25 by the drive means, and the eye E and the optometry section 25 are aligned. Further, various operation switches are displayed on the monitor 7 and selected by the operation means 29 to be executed.

In this way, as in the first embodiment, an easy-to-use compact device which can be operated from any position can be obtained. A joystick may be used instead of the trackball 16.

[0020]

As described above, in the eye examination apparatus according to the first aspect of the present invention, the examiner can operate the image display means from any position without being fixed to face-to-face operation by making the image display means rotatable. Therefore, it becomes possible to operate while taking care near the subject, and the degree of freedom of the installation place can be increased.

The optometry apparatus according to the second aspect of the invention is simple in that the operation of the driving means for alignment and the operation of selecting the measurement target and the operation switch displayed on the image display means are performed by the same operation means. With this configuration, it is easy to use.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a first embodiment.

FIG. 2 is an explanatory diagram of another screen of the display means.

FIG. 3 is a configuration diagram of a second embodiment.

[Explanation of symbols]

 Reference Signs List 1 and 20 housing 2 television camera 3 optometry optical system 4 and 25 optometry section 5 and 24 driving means 6 control means 9 and 27 display means 12 printer 14 and 30 operation means

Claims (2)

[Claims] 1. An optometry section including an image pickup section for an eye to be examined, a driving section for moving the optometry section, a face receiving member fixed to a housing section, and a rotatably mounted to the housing section. Image display means for displaying the image of the eye to be inspected by the means, control means for controlling the optometry section, drive means, image display means, operation means for operating the control means, the control means and the operation means An optometry apparatus having a communication means for transmitting and receiving a signal between the two. 2. An optometry section including an image observing section of an eye to be examined, a drive section for moving the optometry section, an image display section for displaying an image of the eye to be examined by the image pickup section, and the driving section. An optometry apparatus comprising: an operation unit, wherein the operation unit also serves as an operation of selecting a plurality of operation switches displayed on the image display unit.