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

Claim 12:
13. A testing device for detecting defects of transparent test specimens, including an ophthalmological lens, the testing device comprising:
an illumination device for transilluminating a test specimen to be examined; and
an image acquisition device for imaging the test specimen transilluminated by the illumination device, wherein the illumination device includes a plurality of point light sources, which are designed as LEDs and which are linearly moveable in a first direction for generating a stripe pattern, and wherein, in order to capture the stripe pattern, an acquisition duration of the image acquisition device can be adjusted in such a way that the light emitted by each of the light sources moved linearly in the first direction is detected as a light stripe.