CN112370011A

CN112370011A - Eyeball mobility detector

Info

Publication number: CN112370011A
Application number: CN202011260253.4A
Authority: CN
Inventors: 贺中春; 杜东; 冯时; 林子龙; 彭少波; 李周论; 黄绍国
Original assignee: Aojia Huarui Xiamen Medical Technology Co ltd
Current assignee: Shanghai Baiyi Medical Technology Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-02-19

Abstract

The invention provides an eyeball mobility detector which comprises a head fixing frame, an indicator light and an imaging lens, wherein the head fixing frame is used for fixing the head of a subject; the indicating lamp is arranged in front of the head fixing frame and corresponds to the eyes of the subject, the indicating lamp emits visible light beams in the direction far away from the eyes of the subject, and the light beams extend out of the static vision of the subject; the imaging lens is arranged in front of the head fixing frame and used for shooting an image of the eyeball of the subject when the eyeball rotates along the direction of the visible light beam. Compared with the prior art, the method can obtain more accurate eyeball movement conditions of the testee.

Description

Eyeball mobility detector

Technical Field

The invention relates to the field of ophthalmic detection, in particular to an eyeball mobility detector.

Background

In general, in detecting the degree of movement of the eyeball, a doctor orally instructs a subject to rotate the eyeball in each direction in turn, and then observes the movement of the eyeball of the subject in each direction. In the above detection method, the subject may not obtain an accurate movement of the eyeball because there is no reference object to sense when rotating the eyeball and the actual rotation direction is deviated from the indication direction.

Disclosure of Invention

The invention provides an eyeball activity degree detector aiming at the defects of the prior art, and the eyeball activity degree detector can obtain more accurate eyeball activity conditions.

The invention provides an eyeball mobility detector which comprises a head fixing frame, an indicator light and an imaging lens, wherein the head fixing frame is used for fixing the head of a subject; the indicating lamp is arranged in front of the head fixing frame and corresponds to the eyes of the subject, the indicating lamp emits visible light beams in the direction far away from the eyes of the subject, and the light beams extend out of the static vision of the subject; the imaging lens is arranged in front of the head fixing frame and used for shooting an image of the eyeball of the subject when the eyeball rotates along the direction of the visible light beam.

Compared with the prior art, the indicating lamp emits the visible light beam and extends to the outside of the field of the subject, the head of the subject is fixed, the subject rotates the eyeball towards the direction of the light beam to see the light beam outside the field of the subject, and the imaging lens is used for shooting the eye image of the subject at the moment to obtain the more accurate eyeball movement condition of the subject.

Drawings

FIG. 1 is an external view of an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating the use of the embodiment of FIG. 1;

the figure includes: the head support comprises a head fixing frame 1, a light shading plate 11, an indicator light 2, a light beam 21, an imaging lens 3, a rotating base 4, a forehead support 5, a jaw support 6, a fixed base 7 and a mobile platform 8.

Detailed Description

As shown in the figure, the embodiment of the invention provides an eyeball mobility detector, which comprises a head fixing frame 1, an indicator lamp 2 and an imaging lens 3. The head mount 1 is used for fixing the head of a subject; so as to prevent the test result from being influenced by the rotation of the head of the test subject during the test process. The indicator light 2 is arranged in front of the head fixing frame 1, the indicator light 2 emits a visible light beam 21 towards one side of the subject, and the light beam 21 extends out of the static vision field of the subject; so that the subject needs to turn the eyeball in the direction of the beam 21 to see the beam 21 outside the field of calm. The imaging lens 3 is arranged in front of the head fixing frame 1, and the imaging lens 3 is used for shooting an eye image when a subject rotates an eyeball along the direction of the visible light beam 21; thereby obtaining the more accurate eyeball activity condition of the testee.

The light beam 21 extends out of the field of view of the subject so that the subject can rotate to a maximum angle when rotating the eyeball along the light beam 21; therefore, the imaging lens 3 captures an eye image of the subject when the subject rotates the eyeball, so that the maximum moving degree of the eyeball of the subject can be obtained.

The bottom of the head fixing frame 1 is provided with a rotating base 4; the head mount 1 can rotate relative to the rotating base 4.

The head fixing frame 1 is provided with a forehead support and a height-adjustable jaw support 6; the height of the jaw support 6 is adjusted to make the jaw support 6 tightly fit the lower jaw of the subject to match the face length of different subjects.

The eyeball mobility detector also comprises a fixed base 7; a movable platform 8 is arranged on the fixed base 7; the indicator lamp 2 and the imaging lens 3 are disposed on the moving platform 8. Because the imaging lens 3 and the indicator light 2 are both fixed on the movable platform 8, and the relative positions of the imaging lens 3 and the indicator light are kept unchanged, even if the movable platform 8 moves, the proportion of the eyeball movement range in the shot eye picture is still kept unchanged, thereby ensuring that the final detection results can be compared with each other.

The number of the indicator lights 2 is more than two, and the indicator lights 2 are arranged in a ring shape at equal intervals on a plane vertical to the horizontal sight line of the subject. The imaging lens 3 is arranged opposite to the horizontal sight of the testee, and the indicator light 2 is arranged around the imaging lens 3.

The direction of the light beam 21 emitted by each indicator light 2 is different; during testing, each indicator light 2 is sequentially lightened; the subject sequentially looks along different light beams 21 to rotate the eyeball in different directions, and the imaging lens 3 captures eye images of the subject when rotating the eyeball in different directions to obtain the degree of eyeball movement of the subject in different directions.

The outer side of the head fixing frame 1 is connected with a light screen 11, and a light beam 21 emitted by the indicator light 2 irradiates on the light screen 11; thereby preventing the beam 21 from striking a person on or behind the subject.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. The utility model provides an eyeball mobility detector, includes head mount, pilot lamp and imaging lens, its characterized in that: the head fixing frame is used for fixing the head of a subject; the indicating lamp is arranged in front of the head fixing frame and corresponds to the eyes of the subject, the indicating lamp emits visible light beams in the direction far away from the eyes of the subject, and the light beams extend out of the static vision of the subject; the imaging lens is arranged in front of the head fixing frame and used for shooting an image of the eyeball of the subject when the eyeball rotates along the direction of the visible light beam.

2. An eyeball activity degree detector according to claim 1, characterized in that: the light beam extends out of the subject's field of view so that the subject can rotate to a maximum angle as the eye is rotated along the light beam.

3. An eyeball activity degree detector according to claim 1, characterized in that: the bottom of the head fixing frame is provided with a rotating base.

4. An eyeball activity degree detector according to claim 1, characterized in that: the head fixing frame is provided with a forehead support and a jaw support with adjustable height.

5. An eyeball activity degree detector according to claim 1, characterized in that: the device also comprises a fixed base; a movable platform is arranged on the fixed base; the indicator light and the imaging lens are fixed on the mobile platform.

6. An eyeball activity degree detector according to claim 3, characterized in that: the number of the indicator lights is more than two, and the indicator lights are arranged in a ring shape at equal intervals on a plane vertical to the horizontal sight line of the subject.

7. An eyeball activity degree detector according to claim 4, characterized in that: the imaging lens is arranged right opposite to the horizontal sight of the subject, and the indicator light is arranged around the imaging lens.

8. An eyeball activity degree detector according to claim 5, characterized in that: the direction of the light beam emitted by each indicator light is different; during testing, the indicator lights are sequentially lighted.

9. An eyeball activity degree detector according to claim 1, characterized in that: the outer side of the head fixing frame is connected with a light shielding plate, and light beams emitted by the indicator lamp irradiate on the light shielding plate.