US 11,885,751 B2
Testing device and testing method
Marc Flemming, Jena (DE); Hannes Scheibe, Jena (DE); Dominik Wiedemann, Aalen (DE); Alexander Friedl, Aalen (DE); and Daniel Schoebel, Aalen (DE)
Assigned to Carl Zeiss Vision International GmbH, Aalen (DE)
Filed by Carl Zeiss Vision International GmbH, Aalen (DE); and Carl Zeiss Jena GmbH, Jena (DE)
Filed on Sep. 18, 2023, as Appl. No. 18/468,867.
Application 18/468,867 is a continuation of application No. PCT/EP2023/053464, filed on Feb. 13, 2023.
Claims priority of application No. 22157064 (EP), filed on Feb. 16, 2022.
Prior Publication US 2024/0003829 A1, Jan. 4, 2024
Int. Cl. G01N 21/00 (2006.01); G01N 21/958 (2006.01); G01N 21/88 (2006.01)
CPC G01N 21/958 (2013.01) [G01N 2021/8835 (2013.01); G01N 2021/9583 (2013.01)] 19 Claims
OG exemplary drawing
 
1. 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 light sources, which are linearly moveable by a first drive 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 by the first drive in the first directions, is detected as a light stripe.