US 12,326,976 B2
Method for determining an eye distance in a pair of data glasses, and data glasses
Johannes Fischer, Pliezhausen (DE); and Soeren Sofke, Tuebingen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 18/693,625
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Jan. 25, 2023, PCT No. PCT/EP2023/051754
§ 371(c)(1), (2) Date Mar. 20, 2024,
PCT Pub. No. WO2023/174605, PCT Pub. Date Sep. 21, 2023.
Claims priority of application No. 10 2022 202 622.5 (DE), filed on Mar. 17, 2022.
Prior Publication US 2025/0147582 A1, May 8, 2025
Int. Cl. G06F 3/01 (2006.01); G02B 27/01 (2006.01)
CPC G06F 3/013 (2013.01) [G02B 27/017 (2013.01); G02B 27/0179 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01)] 12 Claims
OG exemplary drawing
 
12. Data glasses, comprising:
an optical system, including:
a laser projector configured to generate a scanned laser beam;
an optical reproduction element including a segmentation lens, configured to reproduce the scanned laser beam; and
at least one detector configured to detect a reflection signal of the scanned and reproduced laser beam;
wherein the optical system is configured to:
generate the scanned laser beam using the laser projector,
optically reproduce the scanned laser beam using the optical reproducting element,
illuminate a user's eye using the optically reproduced scanned laser beam, and
detect, using the detector, a reflection signal reflected by the user's eye;
an evaluation unit for evaluating the reflection signal detected by the detector, the evaluation unit configured to:
ascertain pupil positions within the detected reflection signal,
determining relative distances of the pupil positions ascertained from the reflection signal: to one another and/or to a common origin point and/or to one or more reference points, and
calculate an instantaneous eye distance from the determined relative distances; and
an eye distance compensation unit configured to dynamically control components of the optical system of the data glasses to compensate for eye distance variations.