US 11,790,510 B2
Material testing of optical test pieces
Lars Stoppe, Jena (DE); Niklas Mevenkamp, Jena (DE); and Alexander Freytag, Erfurt (DE)
Assigned to Carl Zeiss Jena GmbH, Jena (DE)
Appl. No. 17/251,415
Filed by Carl Zeiss Jena GmbH, Jena (DE)
PCT Filed Jun. 6, 2019, PCT No. PCT/EP2019/064759
§ 371(c)(1), (2) Date Dec. 11, 2020,
PCT Pub. No. WO2019/238518, PCT Pub. Date Dec. 19, 2019.
Claims priority of application No. 102018114005.3 (DE), filed on Jun. 12, 2018.
Prior Publication US 2021/0279858 A1, Sep. 9, 2021
Int. Cl. G06T 7/00 (2017.01); G06T 7/70 (2017.01); G01M 11/02 (2006.01); G06T 5/00 (2006.01); G06T 5/50 (2006.01)
CPC G06T 7/0004 (2013.01) [G01M 11/0221 (2013.01); G01M 11/0264 (2013.01); G01M 11/0278 (2013.01); G06T 5/007 (2013.01); G06T 5/50 (2013.01); G06T 7/70 (2017.01); G06T 2207/10152 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for material testing of an optical test object using an optical imaging system, wherein the method comprises:
for each of at least one pose of the test object in relation to the optical imaging system: respectively actuating the optical imaging system at least two images of the test object by means of at least one of angle-variable illumination and angle-variable detection,
for each of the at least one pose: respectively processing the corresponding at least two images to generate at least one result image with a digital contrast, and
on the basis of the at least one result image which was generated on the basis of the at least two images for the at least one pose: carrying out material testing of the test object,
wherein carrying out the material testing comprises the application of a defect detection algorithm for automatically detecting defects,
wherein, for a detected defect, the defect detection algorithm determines a corresponding influence of the respective defect on an optical effect of the test object,
wherein the test object is at least partly transparent to visible light or infrared light or ultraviolet light.