SMS2D designs as starting points for lens optimization

Hóu, Zhé; Nikolić, Milena; Benı́tez, Pablo; Bociort, Florian

doi:10.1364/oe.26.032463

Cited by 12 publications

(4 citation statements)

References 14 publications

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“…In contrast to the several algorithms that have been proposed to automatically generate starting design points of customized optical systems [9][10][11][12][13][14][15][16][17][18][19], only few computational methods have been demonstrated in the design of OTS optical systems. For example, the substitution method described in [7] is supported by commercially available optical design software with their integrated lens matching algorithms [7,8].…”

Section: Introductionmentioning

confidence: 99%

Off-the-shelf optical systems design enabled by an evolution strategy: front stop case

Madrid-Sánchez,

Ortiz-Ocampo,

Trujillo

et al. 2023

J. Phys. Photonics

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Commercial off-the-shelf optics enable economic and rapid solutions in the photonics industry and academia. However, the design of optical systems with off-the-shelf optics is a time-consuming task for experienced optical designers and hopeless for novice designers. In this paper, we propose an automatic optical design tool to generate optical systems using only off-the-shelf optical components without human assistance. Our solution is based on an evolution strategy (ES) that performs a discrete combinatorial optimization following optical design-based methodologies that satisfy user-defined specifications. Unlike the conventional methods, the algorithm decreases the design process time and provides optical designers with several optical solutions from where to choose and adapt for targeted applications. In this work, the ES is described and tested with front stop optical configurations. We demonstrate the broad solution domain of the algorithm through the generation of optical systems with F-numbers within a range F/1 to F/90 and field of views up to 300 mm at the image plane. To analyze the solution domain and the characteristics of the solution, we used the design specifications of 29 commercially available scan lenses and compared the performance of different ES parameters. The compatibility of our algorithm with (standard) commercially available optical design software unlocks automatic design tools for off-the-shelf optical systems.

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Section: Introductionmentioning

confidence: 99%

Off-the-shelf optical systems design enabled by an evolution strategy: front stop case

Madrid-Sánchez,

Ortiz-Ocampo,

Trujillo

et al. 2023

J. Phys. Photonics

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“…SMS provides a starting point for imaging quality optimization. (10) Hu et al employed the edge-ray principle to design an ultracompact rotational symmetric lens with double freeform surfaces that redistribute the light from a Lambertian LED and increase illumination uniformity in the target area. (11) A genetic algorithm was used to optimize the design for optical compactness under structural constraints and illumination requirements.…”

Section: Introductionmentioning

confidence: 99%

Design of Multi-module LED Headlamp of Vehicle Under Federal Motor Vehicle Safety Standard

Hsieh¹,

Tsai²,

Hung³

et al. 2023

Sensors and Materials

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A light-emitting diode (LED) low-beam headlamp system was designed following the automotive headlamp regulations in Federal Motor Vehicle Safety Standard 108 (FMVSS 108). To design the system, we used the optical simulation software Light Tools. Using the focusing properties of an ellipsoidal reflector and an asymmetric light source floorboard, we enabled the light projected through the lens to form the cutoff lines that are required in regulations. The newly designed LED low-beam headlamp system can replace the shade component in conventional projector-type headlamp systems, reducing energy loss and effectively increasing light utilization efficiency. Using the concept of light pattern superposition, we superposed the light patterns of multiple modules to reduce the number of LED lights used and achieve satisfactory utilization efficiency. We used the simultaneous multiple-surface (SMS) design method to construct a high-focusing multiple-surface reflector and incorporated it into the system. By superposing the light patterns, the designed system satisfied illuminance regulations. Compared with conventional 55 W halogen low-beam headlamps, the LED low-beam headlamp systems in this study used 70% less energy.

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“…We broadly classify imaging construction methods by how they ensure the consistency of the freeform surfaces. First, simultaneous multiple surfaces (SMS) based methods [4,5,6] use a small bundle of construction rays which are cleverly coupled to design consistent surfaces. Secondly, point-by-point methods [7,8] use a dense batch of feature rays and fitting methods to recalculate iteratively surfaces normals.…”

mentioning

confidence: 99%

“…These two differentiations are necessary to take into account all the constraints set in Eq. (6). We thus obtain a system of 48 equations with 37 unknowns according to Table 1, column 1.…”

mentioning

confidence: 99%

Differential method for freeform optics applied to two-mirror off-axis telescope design

Volatier

Druart

2019

Opt. Lett.

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In this letter we present a method to design the freeform surfaces of an off-axis unobscured two-mirror telescope by integration of a system of differential equations. The system is derived from the differentiation of the Fermat path's principle and is integrated as an ordinary differential equation problem. The method is used to design the freeform surfaces of a telescope whose performance is verified in off-the-shelf optical design software (Zemax).

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SMS2D designs as starting points for lens optimization

Cited by 12 publications

References 14 publications

Off-the-shelf optical systems design enabled by an evolution strategy: front stop case

Off-the-shelf optical systems design enabled by an evolution strategy: front stop case

Design of Multi-module LED Headlamp of Vehicle Under Federal Motor Vehicle Safety Standard

Differential method for freeform optics applied to two-mirror off-axis telescope design

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