Conference Agenda

Session
TOM3 S04: Optical System Design, Tolerancing and Manufacturing
Time:
Tuesday, 14/Sept/2021:
18:00 - 19:30

Session Chair: Marco Hanft, Carl Zeiss AG, Germany
Location: Aula 9

1st Floor

Presentations
18:00 - 18:30
Invited
ID: 124 / TOM3 S04: 1
TOM 3 Optical System Design, Tolerancing and Manufacturing

Multiplexed computer controlled optical surfacing using multiple tools

Daewook Kim1,2,3, Xiaolong Ke4, Weslin Pullen1, Tianyi Wang5, Heejoo Choi1,3, Vipender Negi6, Lei Huang5, Mourad Idir5

1James C. Wyant College of Optical Sciences, the University of Arizona, 1630 E. University Blvd., Tucson, AZ 85721, USA; 2Department of Astronomy and Steward Observatory, Univ. of Arizona, 933 N. Cherry Ave., Tucson, AZ 85721, USA; 3Large Binocular Telescope Observatory, Univ. of Arizona, Tucson, AZ 85721, USA; 4School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen, 361024, China; 5National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, PO Box 5000, Upton, NY 11973, USA; 6Academy of Scientific and Innovative Research (AcSIR), CSIR-CSIO Campus, Chandigarh, 160030, India

High precision freeform optics are manufactured through deterministic computer controlled optical surfacing processes, such as subaperture small tool polishing, magnetorheological finishing, bonnet tool polishing, and ion beam figuring. Due to the small tool size and the corresponding tool influence function, freeform optics fabrication is a highly time-consuming process. The mathematical framework of multiplexed figuring runs for the simultaneous use of two or more tools is presented. This process of multiplexing increases the manufacturing efficiency and reduces the overall cost using parallelized subaperture tools.



18:30 - 18:45
ID: 246 / TOM3 S04: 2
TOM 3 Optical System Design, Tolerancing and Manufacturing

New surface contributions for higher order color aberrations and chromatic variations of Seidel aberrations

Andrea Berner1, Herbert Gross2

1Carl Zeiss AG, Germany; 2IAP, Friedrich-Schiller-University Jena

The 1st-order color contributions of Seidel often lead to not sufficiently accurate results in complex optical designs. An extension of the Seidel theory by higher-order color aberrations as well as by their chromatic variation contributions is applied and shows descriptively how different color aberrations can be balanced for correcting a complex optical system.



18:45 - 19:00
ID: 315 / TOM3 S04: 3
TOM 3 Optical System Design, Tolerancing and Manufacturing

Glastics: decision making in the optical design regime where designs made of glass compete with those made of plastics

Oliver Faehnle1, Jens Bliedtner2, Irina Livshits3

1OST University of Applierd Sciences; 2EAH University of Applied Sciences; 3ITMO University, St.Petersburg, Russia

see attached file



19:00 - 19:15
ID: 525 / TOM3 S04: 4
TOM 3 Optical System Design, Tolerancing and Manufacturing

Opportunities and challenges of precision glass molding technology

Cheng Jiang

Fraunhofer Institute for Production Technology, Germany

Precision glass molding (PGM) technology is a replicative method to manufacture lenses with complex

geometry such as aspheres, freeforms and diffractive structures. The replicative method is a more efficient production

approach than direct grinding and polishing processes. Essentially, PGM is a thermomechanical forming process and

compared with the direct grinding and polishing, the molded lens properties deviate from the blank material.



19:15 - 19:30
ID: 556 / TOM3 S04: 5
TOM 3 Optical System Design, Tolerancing and Manufacturing

High performance functional coatings for challenging substrate geometries

Adriana Szeghalmi

Fraunhofer Institute for Applied Optics and Precision Engineering, Germany

Optical systems have become increasingly complex and rely on components with sharply curved

or miniaturized surfaces. Their optical performance is achieved with functional coatings, which must fulfil

ever-increasing requirements concerning precision and uniformity, absorption and scattering losses,

environmental stability, laser induced damage threshold, etc. However, the coating of freeform optics, lenses,

domes, microoptics or nanophotonics is highly challenging. Here, we present the capabilities of atomic layer

deposition towards high performance functional coatings for such optics...