Freeform optics: introduction

Falaggis, Konstantinos; Rolland, Jannick P.; Duerr, Fabian; Sohn, Alexander

doi:10.1364/oe.454788

Cited by 15 publications

(3 citation statements)

References 30 publications

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“…Recently, we are witnessing significant advances in the fabrication and optical testing of both diffractive optics and emerging freeform optics [34,35]. The free-form optical shapes or optical surfaces are designed with little to no symmetry: they are free from any constraints of symmetry in their form and shape.…”

Section: Comments On Optical Design Fabrication and Potential Applica...mentioning

confidence: 99%

Off-Axis Three-Mirror Optical System Designs: From Cooke’s Triplet to Remote Sensing and Surveying Instruments

et al. 2023

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The off-axis three-mirror optical system is derived from the classical Cooke triplet or a derivative of the inverse-telephoto lens. By properly arranging an internal reimaging mechanism or altering the location of the optical stop, one can create different versions of three-mirror optical systems. They include very compact configurations and wide field-of-view imagers. Insights into the optical design process, manufacturing, stray light management, and remote sensing applications are presented.

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Section: Comments On Optical Design Fabrication and Potential Applica...mentioning

confidence: 99%

Off-Axis Three-Mirror Optical System Designs: From Cooke’s Triplet to Remote Sensing and Surveying Instruments

et al. 2023

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“…Similarly, metasurfaces, two-dimensional equivalents of metamaterials, promise to overcome the angle-spectral limitations of purely refractive surfaces while offering extremely smaller form factors. Besides, metasurfaces can be used in conjunction with other tools like nanoantennas [35,36], mode coupling [37][38][39][40], guided-mode resonances [41], Pancharatnam-Berry phase [42], freeform optics [43], etc. to permit such arbitrary manipulation of the optical wavefront.…”

Section: Introductionmentioning

confidence: 99%

Guided Mode Resonance-Based Transparent Metasurfaces for Selective Multi-Color Reflection

Magno,

Grande,

Dagens

et al. 2023

2023 23rd International Conference on Transparent Optical Networks (ICTON)

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Metasurfaces enable precise and efficient control over light's angular-spectral properties, making them crucial for developing augmented reality displays for information visualization. In this contribution, we will focus on the design of transparent metasurfaces that use guided mode resonances to achieve polychromatic selective reflection, specifically for wearable augmented reality systems. These metasurfaces may be valuable in the realization of near-eye visual aids in support of individuals with cognitive impairment issues.

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“…• Reduces the weight of optical system and making it compact [7]. • Improving the capabilities of optical designers and innovation in optics [8].…”

Section: Introductionmentioning

confidence: 99%

Advances in the design and manufacturing of novel freeform optics

Kumar

Tong

Jiang

2022

Int. J. Extrem. Manuf.

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Freeform optics has become the most prominent element of the optics industry. Advanced freeform optical designs supplementary to ultra-precision manufacturing and metrology techniques have upgraded the lifestyle, thinking, and observing power of existing humans. Imaginations related to space explorations, portability, accessibility have also witnessed sensible in today’s time with freeform optics. Present-day design methods and fabrications techniques applicable in the development of freeform optics and the market requirements are focussed and explained with the help of traditional and non-traditional optical applications. Over the years, significant research is performed in the emerging field of freeform optics, but no standards are established yet in terms of tolerances and definitions. We critically review the optical design methods for freeform optics considering the image forming and non-image forming applications. Numerous subtractive manufacturing technologies including figure correction methods and metrology have been developed to fabricate extreme modern freeform optics to satisfy the demands of various applications such as space, astronomy, earth science, defence, biomedical, material processing, surveillance, and many more. We described a variety of advanced technologies in manufacturing and metrology for novel freeform optics. Next, we also covered the manufacturing-oriented design scheme for advanced optics. We conclude this review with an outlook on the future of freeform optics design, manufacturing and metrology.

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Freeform optics: introduction

Cited by 15 publications

References 30 publications

Off-Axis Three-Mirror Optical System Designs: From Cooke’s Triplet to Remote Sensing and Surveying Instruments

Off-Axis Three-Mirror Optical System Designs: From Cooke’s Triplet to Remote Sensing and Surveying Instruments

Guided Mode Resonance-Based Transparent Metasurfaces for Selective Multi-Color Reflection

Advances in the design and manufacturing of novel freeform optics

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