Improving the optical properties of achromatic lenses due to the process conditions

Natale R, Drummer D (2023)

Publication Language: English

Publication Type: Conference contribution, Abstract of lecture

Publication year: 2023

Event location: London GB

Abstract

Transparent polymers have gained considerable attention as materials for precision optical components due to their light weight and ability to be produced in large quantities by injection molding. Another advantage of using an injection molding process is the possibility to produce multicomponent parts without the need for an additional adhesive. A good example is the production of achromatic lenses. Achromatic lenses are often used in optical applications, such as car headlights and cameras, to correct chromatic aberrations. This study focuses on the influence of process parameters on the optical properties of achromatic lenses manufactured by isothermal and variothermal injection molding processes. The lenses were made from a combination of two materials, polycarbonate (PC) and polymethal methylacrylate (PMMA). The process parameters were systematically varied and the resulting material optical properties were analyzed using appropriate analytical methods. The use of high holding pressure (700 bar) for the first component (PC) combined with the variothermal injection molding process exhibits good optical properties in achromats, and an additional step of oven bedding to reduce residual stresses improves these optical properties further. The results of this study will provide insight into the optimal choice of process parameters for the injection molding of high-quality achromatic lenses made of PC and PMMA.

Authors with CRIS profile

Rebeca Natale Lehrstuhl für Kunststofftechnik (LKT) Dietmar Drummer Lehrstuhl für Kunststofftechnik (LKT)

Related research project(s)

Investigations into the production of achromatic lenses by two-component injection compression molding of transparent plastics Jan. 1, 2021 - June 30, 2023

How to cite

APA:

Natale, R., & Drummer, D. (2023, March). Improving the optical properties of achromatic lenses due to the process conditions. Paper presentation at Scholars 2nd Edition International Conference on Optics, Lasers and Photonics. 2023, London, GB.

MLA:

Natale, Rebeca, and Dietmar Drummer. "Improving the optical properties of achromatic lenses due to the process conditions." Presented at Scholars 2nd Edition International Conference on Optics, Lasers and Photonics. 2023, London 2023.

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