Jul 2026· Advances in 3OM: Opto-Mechatronics, Opto-Mechanics, and Optical Metrology· Vol 14159, pp. 141590N - 141590N-10· 0 citations· 12 references
Engineering
TL;DR
The paper presents a software application realized in MATLAB for basic optical entities synthesis (single lens, cemented doublet, air-spaced doublet, cemented triplet) based on fundamentals in literature and can represent a solid basis and hand-book for designing from very simple to more complex optical systems with minimum effort.
Abstract
The calculus of parameters for lens design is quite complex and time consuming and very few software applications which can offer support in this mater are available to the wide public. Most optical design software programs are rather simulation programs that are able to determine the quality of the optical system, helpful in making design decisions or offering optimization features but they do not offer the possibility to actually design from scratch such entities. The paper presents a software application realized in MATLAB for basic optical entities synthesis (single lens, cemented doublet, air-spaced doublet, cemented triplet) based on fundamentals in literature. The application is also capable of giving a rough analysis of several aberrations of the optical system and generate 2D representations for the lenses. It contains a predefined glass database that incorporates information about a wide variety of materials from manufacturers catalogs and also a buildable database where the users can add their favorite choice of materials and save them for future designs. The software has also multiple simple tools such as graphical representation of Ray-Tracing for a marginal ray passing through a lens, graphical representation of angles of incidence and refraction based on Snell`s Law and even a camera parameter calculator useful for optical applications such as robotics. The application can represent a solid basis and hand-book for designing from very simple to more complex optical systems with minimum effort, it is time saving and user friendly, appropriate for experienced designers but also cand be used as didactic material especially for students in the optical filed as it offers tools for understanding some basic optical principles.
The air-spaced achromatic doublets are wildly used in imaging applications. Lens assemblies require time and effort in order to make sure that the chromatic and spherical aberrations are reduced as much as possible and the resulted system performance is at the expected level. This paper proposes a software application realized in MATLAB, capable of coming into the aid of the lens designer in obtaining the desired doublet with minimum effort. Based on some main parameters selected by the user such as lens materials, aperture of the system, air space and required focal length, the synthesis of the assembly is performed, the values of radii of curvature of the surfaces and thicknesses are calculated and displayed. 2D 1:1 scale representations of the lenses are generated and used to visualize the resulted system. As the material used for each lens is vital in the design process, the software application contains in its glass editable database a large variety of materials that can be chosen, this feature minimizing the effort in finding the needed input data. The paper also contains a presentation of the algorithm based on the fundamentals of literature used to develop the application and the analysis of the achromatic doublet solutions to prove its quality. This software could be of interest for any lens designer and can offer a solid basis in constructing air spaced doublet systems as it offers a fast, automated solution for the calculus of the design parameters that could be afterwords analyzed using a simulation soft-ware and optimization if necessary.
Sergiu Oprean, C.-M. Gruescu· Advances in 3OM: Opto-Mechat...· 0 citations
New approaches are proposed to simplify and formalize multi-panel figure composition, emphasizing rapid layout construction and experimentation while maintaining explicit control over publication parameters.
For large-scale scientific devices like tokamak and particle accelerators, it is necessary to automatically monitor the positions and gestures of their important components. Laser trackers and reflectors are suitable for monitoring these devices, and it is necessary to use active laser reflectors as datum points to ensure they can receive the beams from different laser trackers. In this article, a new version of active laser reflector was designed and a new prototype was based on the weakness of the first version. In terms of the structure, an adjustable turntable and a customized reflector for the second prototype were designed, utilizing 3D digital simulation techniques and CATIA for design and optimization with finite element analysis (FEA). CATIA models were instrumental in generating precise manufacturing drawings and aiding in the assembly and adjustment process. Through digital integration, a reduction in positioning accuracy was achieved from ±0.23 mm to ±0.1 mm, thereby enhancing precision substantially. The objective of this work was to re-engineer the control software, ensuring compliance with the protocols of modern automated monitoring systems. Based on the principle of automatic monitoring, it has established a simulated automatic monitoring system in the laboratory using the two active laser reflectors. The simulated system can measure the length of standard ruler at regular intervals automatically, which preliminary verified the feasibility to build automatic monitoring system using the designed active laser reflector.
Optical coordinate measurements provide numerous benefits, such as high speed and non-contact operation; however, they are highly sensitive to the surface properties of the object being measured. Surfaces that are highly reflective or transparent, in particular, present significant challenges for optical measurement systems. In such cases, specialized matting sprays are commonly employed to ensure reliable data acquisition. As indicated by previous studies, manually applying these sprays can result in uneven coating thickness and streak formation, which are especially problematic for high-precision coordinate measurements and may negatively affect the accuracy of the results. This research tackles this challenge by aiming to improve the precision of optical coordinate measurements for applications requiring surface matting. A concept for an automated matting process is proposed, implemented using a robot designed and manufactured through 3D printing technology. The system enables controlled and repeatable application of spray, with a regulated force applied to the atomizer. The study details the mechanical design of the robot, the control components integrated into the system, and the methods used to regulate both the atomizer’s position and the applied force. To assess the effectiveness of the approach, comparative experiments were conducted. These experiments analyzed changes in the measured diameter of a reference sphere after applying the spray manually and via the robotic system. Measurements were performed using a Hexagon Absolute Arm RA-7320 in combination with PolyWorks software, and the force exerted on the atomizer was recorded in both cases. The findings demonstrate that automation allows the matting agent to be applied more evenly and in thinner layers, significantly enhancing measurement repeatability compared to manual application. Overall, the study confirms the advantages of automating surface preparation and highlights potential avenues for further development.
Sara Sosnowska, Joanna Toczek, Danuta Owczarek et al.· Advances in Science and Tech...· 0 citations
Consumer-grade Fused Deposition Modeling (FDM) 3D printing has become increasingly commonplace, but novice users often lack the expertise to harness the power of their hardware. Among other issues, users tend to over-rely on standard materials (e.g., PLA), despite modern consumer printers being capable of processing a multitude of filaments suited to diverse applications. Our interactive visualization tool FilaMap supports novices in material selection. FilaMap is built around a parallel coordinates plot (PCP) that allows users to filter and explore materials without requiring prior expert knowledge. The tool was developed in an iterative process including 12 user tests, yielding a well-tuned and validated interaction design. In addition to being a useful tool, FilaMap demonstrates that PCP—traditionally associated with expert users—can be effectively adapted for a selection task and made accessible to novices. We report on the application and its design process as well as discussing wider implications for PCP.
Naim Hadzic, Ulrich von Zadow· Message Understanding Confer...· 0 citations
Manufacturers of microelectronics media (ceramics, film, foil, etc.) are under enormous pressure to maximize throughput rates, while maintaining high quality and yield. Automatic inspection systems can achieve these objectives, concurrently, if the correct inspection system is installed. The difficulty is matching the inspection problem against a dizzying array of inspection system solutions.
Inspection system design represents the integration of four disciplines - optics, electronics, mechanical engineering and software. The disciplines must play together, as a system, like a symphony. And, like a symphony, there are lead disciplines and supporting disciplines.
This paper serves as a guide for MCM manufacturers who must address the issue of on-line inspection of base material, laminates and coatings. It defines the underlying principles behind the selection of an inspection system. The optical solution is presented as the critical issue. Laser and camera technologies are compared and guidelines for the selection are given.
T. Potts· IMAPSource Proceedings· 0 citations
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