Method for operating smart glasses including a virtual retinal display, processing unit, and smart glasses
AssigneeRobert Bosch GmbH
InventorsJohannes Meyer, Johannes Fischer
Life of this patent
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Abstract
A method is provided for operating smart glasses including a virtual retinal display. In at least one method step, in particular a calibration step, a pupil size characteristic curve is generated in a user-specific manner in that a plurality of pupil sizes of a user eye are ascertained in the case of calibration images of different brightnesses generated by the virtual retinal display. In at least one further method step, at least one present pupil diameter of the user eye of the user of the smart glasses is determined using the pupil size characteristic curve.
Claims9
A method for operating smart glasses including a virtual retinal display, the method comprising the following steps:
- generating a pupil size characteristic curve in a user-specific manner in that a plurality of pupil sizes of a user eye of the user are ascertained based on calibration images of different brightnesses generated by the virtual retinal display;
- determining at least one present pupil diameter of the user eye of the user of the smart glasses using the pupil size characteristic curve;
- ascertaining an ambient brightness in a temporal context with a display of the calibration images;
- and
- determining an ambient brightness from the present pupil diameter of the user ascertained using the user-specific pupil size characteristic curve together with a present image brightness ascertained presently by a detector for visible light integrated into a laser beam dump of the laser projector.
A processing unit configured to operate smart glasses including a virtual retinal display, the processing unit configured to:
- generate a pupil size characteristic curve in a user-specific manner in that a plurality of pupil sizes of a user eye of the user are ascertained based on calibration images of different brightnesses generated by the virtual retinal display;
- determine at least one present pupil diameter of the user eye of the user of the smart glasses using the pupil size characteristic curve;
- ascertain an ambient brightness in a temporal context with a display of the calibration images;
- and
- determine an ambient brightness from the present pupil diameter of the user ascertained using the user-specific pupil size characteristic curve together with a present image brightness ascertained presently by a detector for visible light integrated into a laser beam dump of the laser projector.
Smart glasses, comprising:
- a virtual retinal display;
- and
- a processing unit configured to operate the smart glasses, the processing unit configured to:
- generate a pupil size characteristic curve in a user-specific manner in that a plurality of pupil sizes of a user eye of the user are ascertained based on calibration images of different brightnesses generated by the virtual retinal display,
- determine at least one present pupil diameter of the user eye of the user of the smart glasses using the pupil size characteristic curve;
- ascertain an ambient brightness in a temporal context with a display of the calibration images;
- and
- determine an ambient brightness from the present pupil diameter of the user ascertained using the user-specific pupil size characteristic curve together with a present image brightness ascertained presently by a detector for visible light integrated into a laser beam dump of the laser projector.
Dependencies are inferred from the claim text.