HMD apparatus with adjustable eye tracking device
View Patent ↗An HMD apparatus with an imaging optical system for each one of the eyes of a user, which includes at least one display unit to be viewed by the respective eye, and with a device for the acquisition of the viewing direction of at least one eye within a field of view of the display unit by means of an eye camera, wherein the eye camera is provided with a camera holder, which can be adjusted in terms of a peripheral angle around a viewing central axis of the field of view and in terms of a setting angle with respect to the viewing central axis.
1. A head-mounted display (HMD) apparatus comprising: an imaging optical system for an eye of a user, the imaging optical system comprising a display unit to be viewed by the eye of the user, and a control device to acquire a viewing direction of the eye of the user within a field of view of the display unit using an eye camera;
a camera holder to receive the eye camera, the camera holder being selectively adjustable in relationship to the display unit to vary an orientation of the eye camera in terms of a peripheral angle around a viewing central axis of the field of view and in terms of a setting angle with respect to the viewing central axis;
a peripheral position ring that surrounds the field of view; and
a setting angle unit for different setting angles, the camera holder mountable detachably on the setting angle unit to selectively adjust the setting angle, the setting angle unit mountable detachably on the peripheral position ring and adjustable in discrete notch steps along the peripheral position ring to selectively adjust the peripheral angle.
2. The HMD apparatus according to claim 1 , wherein the camera holder is manually adjustable along at least one section of the peripheral position ring.
3. The HMD apparatus according to claim 2 , wherein the camera holder is manually adjustable in discrete notch steps.
4. The HMD apparatus according to claim 3 , wherein the control device is to evaluate an eye image recorded by the eye camera and to determine correction values that are settable, the control device further to send the correction values as signals.
5. The HMD apparatus according to claim 1 , wherein the camera holder is continuously adjustable.
6. The HMD apparatus according to claim 5 , wherein the apparatus comprises a peripheral angle setting apparatus to move the setting angle unit along the peripheral position ring, the control device to evaluate an eye image recorded by the eye camera and to set the peripheral angle setting apparatus based on the evaluation.
7. The HMD apparatus according to claim 1 , wherein the setting angle unit is continuously adjustable.
8. The HMD apparatus according to claim 7 , wherein the apparatus comprises a setting angle setting apparatus to adjust the eye camera by using the setting angle unit, the control device further to evaluate an eye image recorded by the eye camera and to set the setting angle setting apparatus based on the evaluation.
9. The HMD apparatus according to claim 1 , wherein the apparatus comprises at least one illumination unit to illuminate the eye of the user with infrared light for the eye camera.
10. The HMD apparatus according to claim 1 , wherein the control device to evaluate an eye image recorded by the eye camera and to determine correction values that are settable, the control device further to send the correction values as signals.
11. An adjustment apparatus for a head-mounted display (HMD) apparatus, the HMD apparatus comprising an imaging optical system for an eye of a user, the imaging optical system comprising a display unit to be viewed by the eye of the user, the adjustment apparatus comprising:
an eye camera to acquire an eye image for acquisition of a viewing direction of the eye of the user within a field of view of the display unit;
a camera holder to receive the eye camera, the camera holder being selectively adjustable in relationship to the display unit to vary an orientation of the eye camera in terms of a peripheral angle around a viewing central axis of the field of view and in terms of a setting angle with respect to the viewing central axis;
a peripheral position ring that surrounds the field of view; and
a setting angle unit for different setting angles, the camera holder mountable detachably on the setting angle unit to selectively adjust the setting angle, the setting angle unit mountable detachably on the peripheral position ring and adjustable in discrete notch steps along the peripheral position ring to selectively adjust the peripheral angle.