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检索条件"任意字段=Conference on Current Developments in Optical Design and Engineering V"

共 1195 条记录，以下是1-10 订阅

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25 years of current developments in lens design and optical engineering: a review 25

25 years of current developments in lens design and optical ...

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conference on current developments in Lens design and optical engineering XXv

作者： Thibault, Simon Univ Laval COPL Quebec City PQ Canada

ISBN: (纸本)9781510679221;9781510679238

These days, nothing lasts very long, and things often change for the better, but there are sure things in our community, such as this annual event, which has been going on for 25 years. The first edition in 2000 of the current developments in Lens design and optical Systems engineering conference took place during International Symposium on optical science and technology, 30 July - 4 August 2000 in San Diego. Over 45 oral presentations and ten posters were presented. The chairs were Robert E. Fischer, Warren J. Smith, R. Barry Johnson, and William H. Swantner. The proceeding was numbered 4093 and 24 years later the number is 12666 (2023). This paper looks back on the great moments of our conference, its speakers, the subjects that have come and gone, and those that have remained.

关键词： History lens design optical engineering aberration instrumentation assembly testing metrology

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25 years of progress in lithographic optics design methods 25

25 years of progress in lithographic optics design methods

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conference on current developments in Lens design and optical engineering XXv

作者： Shafer, David David Shafer Opt Design Fairfield CT 06824 USA

Several new optical design methods have been developed over the last 25 years for lithographic optics, leading to greatly improved designs.

ISBN: (纸本)9781510679221;9781510679238

Several new optical design methods have been developed over the last 25 years for lithographic optics, leading to greatly improved designs.

关键词： optical lithography aspherics lenses mirrors

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Recent progress on raytracing through metasurfaces 25

Recent progress on raytracing through metasurfaces

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conference on current developments in Lens design and optical engineering XXv

作者： Borne, Jeck Bouillon, Christopher Cleroux-Cuillerier, Alexandre Thibault, Simon Univ Laval COPL 2375 Rue Terrasse Quebec City PQ Canada UQAR Inst Sci Mer 310 Allee Ursulines Rimouski PQ Canada

ISBN: (纸本)9781510679221;9781510679238

Our study presents recent progress in modelling and performing lens optical design with metasurfaces. We developed semi-analytical models that recover the output phase, polarization, dispersion and group delay of various nanostructures. This enables the mixing of different nanostructures to obtain a target dispersion profile an interesting application of the model. These models can readily be implemented within optical design software such as Zemax and use the built-in optimization of optical design processes while avoiding time-consuming electrodynamics computation. We also introduce the metasurfaces to the analytical lens design framework. This enables us to analytically compute the phase profile of freeform metasurface doublet concerning particular ray conditions such as the Abbe Sine condition as we presented here.

关键词： Metasurface Metasurface modelling optical design Analytical design

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New active large liquid primary mirror for space applications 25

New active large liquid primary mirror for space application...

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conference on current developments in Lens design and optical engineering XXv

作者： Brousseau, D. Thibault, S. Tayama, Gabriel Univ Laval Ctr Opt Photon & Laser COPL Quebec City PQ G1V 0A6 Canada

ISBN: (纸本)9781510679221;9781510679238

Liquid Mirror Telescopes have been shown to be a credible alternative to traditional telescopes for building low-cost observatories. Previous LMTs were based on the rotation of a pool of mercury which, from the rotation, takes the shape of a parabola. However, they cannot be tilted as traditional telescopes to observe at fields away from the zenith. In the context of the DARPA Zenith program, we present a telescope concept where a magnetic fluid is shaped to a parabolic surface by combining wetting effects and magnetic fields which allow the telescope to be tilted. We also show that the off-axis optical aberrations of the telescope, when observing off-axis, can be cancelled by a surface correction of the parabolic liquid surface by adding a correction to the already applied magnetic field that shapes the mirror surface. In this approach, the scientific instruments are located at the focal plane and designed to track the beam as the field changes.

关键词： Liquid Mirror Technology Telescopes DARPA

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optical design of a single freeform lens for both counter-beam and pro-beam in LED tunnel lighting 25

Optical design of a single freeform lens for both counter-be...

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conference on current developments in Lens design and optical engineering XXv

作者： Syu, Jhih-Ling Lee, Tsung-Xian Tsai, Cheng-Hung Ma, Shih-Hsin Feng Chia Univ Dept Photon Taichung Taiwan Natl Taiwan Univ Sci & Technol Grad Inst Color & Illuminat Technol Daan 106 Taiwan

ISBN: (纸本)9781510679221;9781510679238

A luminaire designed for tunnel lighting is proposed, featuring the ability to adjust the ratio between counter-beam and pro-beam lighting based on different contexts. This allows the luminaire to achieve the optimal lighting mode for the conditions within the tunnel at that time. When both side LEDs are activated, it operates in symmetric lighting mode. When a single-side LED is activated, it switches to either counter-beam or pro-beam lighting mode. The advantage of this luminaire lies in the use of a single freeform secondary lens and LEDs, making installation simpler. It ensures driver safety and is more energy-efficient than traditional tunnel lights.

关键词： optical design Tunnel Lighting Freeform Secondary lens Microstructure

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Using off-the-shelf components in the design of curved compound eye camera systems 25

Using off-the-shelf components in the design of curved compo...

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conference on current developments in Lens design and optical engineering XXv

作者： Allain, Guillaume Rabia, Sedick Thibault, Simon Univ Laval Fac Sci & Genie Dept Phys 2325 Rue Univ Quebec City PQ Canada Ctr Opt Photon & Laser 2375 Rue Terrasse Quebec City PQ Canada

ISBN: (纸本)9781510679221;9781510679238

The fabrication of curved compound eye camera systems is usually complex since it can involve multiple nonstandard components to achieve the desired effect. In this paper we aim to provide a close alternative to these custom optical elements using off the shelf components or to provide a framework to design these systems using standard fabrication techniques. We will first demonstrate how lens distortion can be leveraged to optically bend a standard planar microlens array, and how this bending correlates to a curved microlens array. We will then show lab results of curved compound eye camera made using an off-the-shelf fisheye lens and a standard microlens array and how the equivalent curved microlens array system reproduces image in the real world and provide a comparison using image simulation from an optical design software and a scene recorded using a neural radiance field.

关键词： Optics Lens design Compound eye Lens distortion Biomimetics NERF

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Athermalizing Mounted Doublets With ALLvAR Alloys 25

Athermalizing Mounted Doublets With ALLVAR Alloys

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conference on current developments in Lens design and optical engineering XXv

作者： Monroe, James A. Fehlberg, Olivia Zavislan, James M. ALLVAR 1201 East Fayette St Syracuse NY 13210 USA Tucson Adv Design & Assembly Ctr Edmund Opt 2650 E Elvira RdSte 102 Tucson AZ 85756 USA Univ Rochester Inst Opt 480 Intercampus Dr Rochester NY 14627 USA

ISBN: (纸本)9781510679221;9781510679238

Thermal requirements often constrain optical designs resulting in cost or performance compromises. Unless an optical system is designed from the start considering thermal requirements, effects including thermal defocus can become detrimental to the system's real-world performance. Novel negative thermal expansion ALLvAR Alloys enable a new degree of freedom during initial system design or can be used to passively athermalize an existing optical system without having to re-design. This work discusses the analysis and integration of ALLvAR Alloy 30 into an optomechanical housing to athermalize mounted commercial off-the-shelf (COTS) doublets. Calculations for the thermal defocus of the doublets and the requisite opto-mechanics to athermalize each system are first presented. The target athermalization of the doublets is also discussed. The ALLvAR Alloy 30 athermalized doublet assemblies are then manufactured, built, and tested. The results of the as-built data and testing are presented as compared to the thermal defocus analysis. This work demonstrates that an existing optical system design can be athermalized by utilizing an ALLvAR Alloy material in the optomechanical design.

关键词： Athermalization thermal Negative Thermal Expansion ALLvAR Alloy Doublet Optomechanics optomechanical design

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Silicon Metalens toward a fully Silicon integrated SWIR sensing 25

Silicon Metalens toward a fully Silicon integrated SWIR sens...

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conference on current developments in Lens design and optical engineering XXv

作者： Dupre, Matthieu Ma, Jian Hseih, Biay-cheng Goma, Sergio Qualcomm Technol Inc 5775 Morehouse Dr San Diego CA 92121 USA

ISBN: (纸本)9781510679221;9781510679238

Most Silicon based depth and lidar sensors rely on near-infrared (NIR 750-900nm) sources to produce depth images as Silicon CMOS sensors can achieve a high quantum efficiency for an unbeatable cost at such wavelengths. Advances in short wave infrared (SWIR) sensor technologies, such as Silicon-Germanium sensors, changes this paradigm and opens a new window for groundbreaking sensor designs, as SWIR can push the wavelength above retinal hazard area (>1400nm), allowing for much higher eye safety, due to the low penetration of those wavelengths through the eye lens. Here, we propose to use a Silicon Metalens flat optics and build upon our stacked sensor technologies to obtain a fully Silicon integrated stacked sensor at SWIR wavelengths. We will discuss the design of the stacked sensor and focus on the Silicon Metalens for multiple use-cases. We will demonstrate the results of our Silicon metalens prototype at 1550nm. We will show numerical simulations of the optical stack for eye-tracking application or wide-angle time of flight (TOF) and discuss the necessary trade-offs.

关键词： metalens ToF sensors XR optics lens design

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Review on Advancements and Challenges in Terahertz optical Communication

Review on Advancements and Challenges in Terahertz Optical C...

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2024 International conference on Smart Electronics and Communication Systems, ISENSE 2024

作者： Anujan, Titto Jose, Tony vijayan, vismaya Karunya Institute of Technology and Sciences Division of ECE Tamil Nadu Coimbatore641114 India College of Engineering Trivandrum Department of Electronics and Communication Engineering Kerala 695016 India

ISBN: (纸本)9798331528126

The frequency range of terahertz (THz) has shown great promise for optical communication due to its enormous bandwidth and low interference. This review paper provides a thorough analysis of the latest developments and current obstacles in THz optical *** microwave and infrared wavelengths, the terahertz (THz) frequency range has special possibilities for optical communication *** investigates how THz frequencies and optical communication are convergent, emphasising the latter's promise for high-bandwidth, low-latency data transfer. We investigate possible uses of THz optical communication, such as sensing, imaging, and wireless networks, highlighting the revolutionary influence of this new sector on the design of communication systems in the future. © 2024 IEEE.

关键词： Bandwidth

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optical design process of a human eye inspired lens 23

Optical design process of a human eye inspired lens

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conference on current developments in Lens design and optical engineering XXIII Part of SPIE Optics and Photonics conference

作者： Allain, Guillaume Thibault, Simon Univ Laval Fac Sci & Genie Dept Phys Genie Phys & Opt 1045 Ave Med Laval PQ G1V 0A6 Canada COPL 2375 Rue Terrasse Quebec City PQ G1V 0A6 Canada

ISBN: (纸本)9781510654198;9781510654181

Bio-inspired optical design can be described as a conscious decision in the design process to take inspiration from physical adaptation that were brought up by natural selection. The usual goal is to introduce non-conventional techniques or material in order to achieve better performance or novel applications. However, when the target is to imitate closely the form-factor, appearance and optical properties of a biological system, new requirements are added to the design process and new problems arises. In this paper, we will expose the design of an optical system that draws most requirements from both the optical properties and the form-factor of the human eye. However, contrary to human eye models, the main requirements for this project is to make a realistic design which can be assembled as a prototype. The design process will be laid out, by firstly introducing system requirements and various performance targets that comes from the bio-inspired design. The constraints associated with using entrance pupil's appearance as a requirement will be presented. This paper will also specifically be looking at distortion as a solution for modulating resolution throughout the field of view and as a tool to aid in those novel problems.

关键词： optical design Bio-inspired design Human eye optical design methodology optical Distortion

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