Pupil or corneal position detection device, display device, and ophthalmoscopic device

Abstract

The objective is to provide an eyeball tilt position detection device that is resistant to vibration and external impacts. [Solution] An apparatus for detecting the tilt position of an eyeball according to one aspect of the disclosed technology, characterized by comprising: a light source array having a plurality of light-emitting units that emit directional light; and an optical position detection element for detecting the optical position of the reflected light from the eyeball.

Claims

1. A pupil or corneal position detection device to be mounted on a glasses-type support or a head-mounted wearable device, Multiple light-emitting parts, A light deflection unit that does not move when detecting the position of the pupil or cornea, which directs the light emitted from the light-emitting unit into the eyeball, A light-receiving unit that receives light deflected by the light-deflecting unit and reflected by the eyeball, It has, The light deflection unit causes each of the light emitted from the plurality of light-emitting units to be incident on the eyeball in a different direction. In the optical path from the plurality of light-emitting units to the eyeball, there is no separate light-deflecting unit, distinct from the light-deflecting unit, that moves when detecting the position of the pupil or cornea. A pupil or corneal position detection device characterized by the above.

2. The glasses-type support or the head-mounted wearable device is attached directly or indirectly to a person's head. The pupil or corneal position detection device according to feature 1.

3. The glasses-type support or the head-mounted wearable device comprises a lens and a frame. The pupil or corneal position detection device according to claim 1 or 2.

4. The light emitted from the light-emitting unit and detected by the light-receiving unit is reflected once or twice by the pupil or corneal position detection device. A pupil or corneal position detection device according to any one of claims 1 to 3.

5. When the light is reflected twice by the pupil or corneal position detection device, the reflection is performed by the light deflection unit which does not move when detecting the position of the pupil or cornea. The pupil or corneal position detection device according to feature 4.

6. At least one of the light deflection parts that does not move when detecting the position of the pupil or cornea is provided on a surface of the spectacle-type support or the head-mounted wearable device that intersects the direction of normal vision of the eyeball. A pupil or corneal position detection device according to any one of claims 1 to 3.

7. The surface of the eyeglass-type support or the head-mounted wearable device that intersects the direction of normal vision of the eyeball is a surface perpendicular to the direction of normal vision of the eyeball. The pupil or corneal position detection device according to feature 6.

8. The distance between the position where the light emitted from the light-emitting unit is reflected by the immovable light-deflecting unit when detecting the position of the pupil or cornea, and the plane perpendicular to the surface of the glasses-type support or the head-mounted wearable device, which includes the light-emitting unit, is shorter than the distance between the position where the light deflected by the immovable light-deflecting unit when detecting the position of the pupil or cornea is reflected by the eyeball, and the plane perpendicular to the surface of the glasses-type support or the head-mounted wearable device, which includes the light-emitting unit. The pupil or corneal position detection device according to claim 6 or 7.

9. At least one of the light deflection parts that does not move when detecting the position of the pupil or cornea is provided on a different member from the member on which the light-emitting part is provided in the glasses-type support or the head-mounted wearable device. A pupil or corneal position detection device according to any one of claims 1 to 3.

10. The light-emitting part emits light toward a plane in the eyeglass-type support or the head-mounted wearable device that intersects the direction of normal vision of the eyeball. A pupil or corneal position detection device according to any one of claims 1 to 3.

11. At least one of the light deflecting parts that does not move when detecting the position of the pupil or cornea deflects the light emitted from the light-emitting part toward a plane in the spectacle-type support or the head-mounted wearable device that intersects the direction of normal vision of the eyeball. A pupil or corneal position detection device according to any one of claims 1 to 3.

12. The laser is characterized in that the light-emitting parts are arranged in a plane and have a surface emission laser. A pupil or corneal position detection device as described in any one of items 1 to 11.

13. The timing of light emission between the plurality of light-emitting units changes at predetermined timings. A pupil or corneal position detection device according to any one of claims 1 to 12, characterized by the features described herein.

14. The light receiving unit has an image sensor A pupil or corneal position detection device according to any one of claims 1 to 13.

15. The image sensor detects the position of light based on the spatial intensity distribution of light incident on the imaging surface. The pupil or corneal position detection device according to feature 14.

16. The light receiving unit has a two-dimensional PSD (Position Sensitive Detector) A pupil or corneal position detection device according to any one of claims 1 to 13.

17. The light receiving unit has a plurality of one-dimensional PSDs (Position Sensitive Detectors) arranged in a predetermined direction. A pupil or corneal position detection device according to any one of claims 1 to 13.

18. The light-emitting unit and the light-deflecting unit, which is not movable when detecting the position of the pupil or cornea, are arranged on the same substrate. A pupil or corneal position detection device according to any one of claims 1 to 17, characterized by the features described herein.

19. The light-emitting portion is arranged on a first substrate, and the light deflection portion, which does not move when detecting the position of the pupil or cornea, is arranged on a second substrate. The first substrate and the second substrate are arranged in contact with each other. A pupil or corneal position detection device according to any one of claims 1 to 18.

20. The light-receiving unit is positioned on the same side as the light-emitting unit with respect to the eyeball. A pupil or corneal position detection device according to any one of claims 1 to 19.

21. Having processing means for performing the detection process of the position of the pupil or cornea, The processing means includes a light emission control means for controlling the light emission of the light emission unit, It includes a position calculation means that calculates the position of the pupil or cornea based on the output of the light receiving unit, The light emission control means controls the light-emitting unit that emits light and the timing of the light emission of the light-emitting unit. A pupil or corneal position detection device according to any one of claims 1 to 20, characterized by the features described herein.

22. A display device having a pupil or corneal position detection device according to any one of claims 1 to 21.

23. An ophthalmological examination device having a pupil or corneal position detection device according to any one of claims 1 to 21.

24. A pupil or corneal position detection device, Multiple light-emitting parts, A light deflection unit that does not move when detecting the position of the pupil or cornea, which directs the light emitted from the light-emitting unit into the eyeball, A light-receiving unit that receives light deflected by the light-deflecting unit and reflected by the eyeball, It has, The light deflection unit causes each of the light emitted from the plurality of light-emitting units to be incident on the eyeball in a different direction. In the optical path from the plurality of light-emitting units to the eyeball, there is no separate light-deflecting unit that moves when detecting the position of the pupil or cornea, distinct from the light-deflecting unit. The light-emitting unit, the light-deflecting unit, and the light-receiving unit are mounted on a support that maintains a distance and positional relationship with the eyeball. A pupil or corneal position detection device characterized by the above.

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