Patent ID: 11868522
Assignee: ROBERT BOSCH GMBH
Field: Optics (Instruments)
Classification: CPC G  A | IPC G

Claim 10:
11. A pair of smart glasses, comprising:
an eyeglass lens; and
a projection device including a light source configured to emit a laser beam, a deflecting element configured to deflect the laser beam in a direction of an eye of the user and/or to focus the laser beam, and a reflection element configured to reflect the laser beam onto the deflecting element, wherein the projection device is constructed and configured to: pass the laser beam emitted by the laser source over at least two scanning points on the eye, using the reflection element and the deflecting element, and use a self-mixing effect of the scanning laser beam reflected by the eye into the laser source to determine, for the at least two scanning points, an optical path length from the laser source to the at least two scanning points on a surface of the eye and/or a reflectivity of the eye at the at least two scanning points;
wherein the deflecting element is situated on or in the eyeglass lens.