Special Section Guest Editorial: Recent Advances in Lens Design and Optical Engineering
Notice bibliographique
Résumé
Over nearly four decades, we have seen an increase in the impact of optical technologies in our daily lives.This remarkable progress is due to major development in optical science and engineering.Optical engineering is a fascinating activity, ranging from operational instruments to lens design and modeling with the help of immensely powerful design software.Beyond optical design, the optical engineer is concerned with the fabrication of components, assembly and alignment techniques, metrology and calibration, as well as the interaction with other engineering disciplines such as mechanical, thermal, electronic, and software.This special section offers the most recent results of the multi-faceted discipline that is lens design and optical engineering, and the multi-talented individuals that dedicate themselves to this field.The lens designer and the optical engineer, often the same person, will find this special section a place to stay abreast of the frontiers of this constantly evolving field.Overall, the special section consists of a dozen papers that cover various aspects of optical engineering, from zoom lenses to optomechanics.Two papers deal with the constantly evolving field of zoom lenses.They show how optical modeling, fabrication, and mechanical design have, in their own specific ways, furthered the methods of designing these systems as well as continued to expand their performance capabilities and therefore applications.Another paper highlights some advances made in passively aligning lenses.These new methods can open up new design-space possibilities and tradeoffs for the optical designer to take advantage of.Three papers contribute to the field of Fourier optics and optical systems theory in a broader sense.One contribution is dedicated to extended depth-of-field imaging using diffractive optical elements with special consideration to achromatic behavior.Another one in the field of computational imaging solves the problem of overcoming limited sampling rates by application of a workpiece rotating technique for the in situ measurement of micro-structured surfaces, leading to extraction of accurate depth information for such structures.A third paper explores the field of digital holographic microscopy, introducing an improved adaptive spatial filter method for extraction and interpretation of parts of the hologram spectrum.In the paper titled "Analytic equations to design optical systems with three stigmatic pairs in the meridional plane," authors Rafael Guillermo González-Acuña, Héctor A. Chaparro-Romo, and Julio C. Gutiérrez-Vega present closed-form analytical expressions to design lens systems comprising an arbitrary number of refractive lenses that are sigmatic axially and for two symmetric off-axis points.Actually, since this is a rotationally symmetric optical system, it arguably should be thought of as axially sigmatic and a stigmatic ring of object points having a constant radius.The authors provide an illustrative example of their method.The elegance of their method is that it is based fundamentally on Snell's law and Fermat's principle, which exclude any optimization or numerical approximation.Now that free-form surfaces are practical to fabricate, it will be interesting to see how expansively the authors can further develop closed-form analytical expressions to design more complex lens systems.An interesting discussion of the linear astigmatism aberration is presented by José M. Sasián and Weichuan Gao in their paper titled "Characteristics and control of linear astigmatism aberration in a nonaxially symmetric optical system," which offers a perceptive approach to
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,003 | 0,008 |
| Méta-épidémiologie (sens strict) | 0,003 | 0,001 |
| Méta-épidémiologie (sens large) | 0,002 | 0,002 |
| Bibliométrie | 0,003 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,001 |
| Communication savante | 0,004 | 0,003 |
| Science ouverte | 0,002 | 0,001 |
| Intégrité de la recherche | 0,005 | 0,008 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,019 | 0,010 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».