Patent ID: 11885751
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. A testing method for detecting a defect of a transparent specimen, including an ophthalmological lens, the testing method comprising:
(a) an image acquisition step in which a plurality of stripe recordings is captured by an image acquisition device and is generated with the aid of an illumination device;
(b) a reconstruction step in which an overall image is reconstructed from the stripe recordings; and
(c) a defect detection step in which a possible defect is detected from the overall image;
wherein the illumination device for generating a stripe pattern includes a plurality of light sources, arranged on a light carrier, which are linearly moved in a first direction in the image acquisition step, and wherein, in order to capture the stripe pattern an acquisition duration of the image acquisition device is set in such a way that the light emitted by the linearly moved light sources is respectively detected as a light stripe.