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Light(Science & Applications) 2024年第4期13卷 602-608页

作者： Yating Wan Chenzi Guo Electrical and Computer Engineering the ComputerElectrical and Mathematical Sciences and Engineering DivisionKing Abdullah University of Science and Technology23955-6900 ThuwalSaudi Arabia Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina

Editorial Photonics technology remains a driving force in today’s scientific landscape,marked by continuous innovation and crossdisciplinary relevance.In an enlighting conversation with Light:Science&Applications,Prof.Kei May Lau,a pioneer in photonics research,shares her deep insights on the evolution of technologies of LEDs,lasers,challenges of hetero-epitaxy,and the future of micro-LEDs and quantum dot lasers.Recently honored as a member of the US National Academy of Engineering(NAE)for her significant contributions to photonics and electronics using III-V semiconductors on silicon,Prof.Lau stands out as the sole Hong Kong scholar inducted into the NAE this year,joining 114 new and 21 international members.In this exclusive Light People interview,Prof.Lau shares her journey as a pioneering woman in engineering,her commitment to mentorship and academia,and her perspective on advancing female representation in science.The summary provided is distilled from Prof.Lau’s thoughtful responses during the interview.For a deeper exploration of Prof.Lau’s experiences and advice,the full interview is available in the Supplementary material.

关键词： interview lighting driving

Deep graph learning for spatially-varying indoor lighting prediction

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Science China(Information Sciences) 2023年第3期66卷 173-187页

作者： Jiayang BAI Jie GUO Chenchen WANG Zhenyu CHEN Zhen HE Shan YANG Piaopiao YU Yan ZHANG Yanwen GUO State Key Lab for Novel Software Technology Nanjing University

lighting prediction from a single image is becoming increasingly important in many vision and augmented reality(AR) applications in which shading and shadow consistency between virtual and real objects should be guaranteed. However, this is a notoriously ill-posed problem, especially for indoor scenarios,because of the complexity of indoor luminaires and the limited information involved in 2D images. In this paper, we propose a graph learning-based framework for indoor lighting estimation. The core is a new lighting model(DSGLight) based on depth-augmented spherical Gaussians(SGs) and a graph convolutional network(GCN) that infers the new lighting representation from a single low dynamic range(LDR) image of limited field-of-view. Our lighting model builds 128 evenly distributed SGs over the indoor panorama, where each SG encodes the lighting and the depth around that node. The proposed GCN then learns the mapping from the input image to DSGLight. Compared with existing lighting models, our DSGLight encodes both direct lighting and indirect environmental lighting more faithfully and compactly. It also makes network training and inference more stable. The estimated depth distribution enables temporally stable shading and shadows under spatially-varying lighting. Through thorough experiments, we show that our method obviously outperforms existing methods both qualitatively and quantitatively.

关键词： lighting graph learning augmented reality spherical Gaussians rendering

Low color temperature artificial lighting can slow myopia development: Long-term study using juvenile monkeys

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Zoological Research 2022年第2期43卷 229-233页

作者： Ying-Zhou Hu Hua Yang Hao Li Long-Bao Lv Jing Wu Zhu Zhu Yu-Hua Zhang Fang-Fang Yan Shu-Han Fan Shu-Xiao Wang Jian-Ping Zhao Qiang Qi Chang-Bing Huang Xin-Tian Hu Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China National Resource Center for Non-human Primates Kunming Primate Research Centerand National Research Facility for Phenotypic and Genetic Analysis of Model Animals(Primate Facility)Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China Key Laboratory of Behavioral Science Institute of PsychologyChinese Academy of SciencesBeijing 100101China Department of Psychology University of Chinese Academy of SciencesBeijing 100049China China Academy of Building Research Beijing 100013China Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghai 200031China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Center for the 3rd Generation Semiconductor Materials and Application Beijing 100083China

The incidence of myopia has increased rapidly in recent decades, suggesting that environmental factors, such as light,may be an important cause. Correlated color temperature(CCT) is a commonly used index to quantify the spectral composition of light. Here, we used 32 juvenile monkeys(16 females and 16 males) and selected four kinds of light with typical but different CCTs to study the relationship between CCT and ocular axial elongation.

关键词： artificial lighting myopia

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CAS Highlighted in Annual Top 10 Science Advances for 2023 of China

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Bulletin of the Chinese Academy of Sciences 2024年第1期38卷 11-19页

作者： YAN Fusheng SONG Jianlan 不详

Highlighting progress in life sciences and human health,the National Natural Science Foundation of China(NSFC),releases the well-anticipated 2023 Annual Top 10 Science Advances of China on February 29,2024.

关键词： NSFC lighting release

The Opening Ceremony of the 4Oth China Harbin International Ice and Snow Festival&China-France Yearof Culture and Tourism

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China & The World Cultural Exchange 2024年第1期 22-25页

作者： Zhou Huiying 不详

The opening ceremony of the 4Oth China Harbin International Iceand Snow Festival&China-FranceYearof Cultureand Tourism was held in Harbin Ice and Snow Worldon January 5,2024.Under the darkening sky in the evening,the dazzling lights illuminated Harbin Iceand Snow World.In the charming lighting and dynamic music,tourists from all over the world gathered together to enjoy the magnificent ice and snow sceneryand sharethe unique charm of the feast of Heilongjiang.

关键词： Ice lighting lights

Laser Phosphors for Next-Generation lighting Applications

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Accounts of Materials Research 2022年第12期3卷 1299-1308页

作者： Shuxing Li Yuqin Guo Rong-Jun Xie Fujian Provincial Key Laboratory of Surface and Interface Engineering for High Performance Materials College of MaterialsXiamen UniversityXiamen 361005China

CONSPECTUS:Laser diodes(LDs),free of“efficiency droop”,can bear a superhigh power density.Laser-driven white light sources(blue LD+laser phosphors),which promise super brightness and high directionality,have emerged for various applications,including lighting,displays,communications,and endoscopy.Laser phosphors are critical components of this technology,which determine the luminous efficacy,luminance,and color quality of the device.However,most phosphors suffer from serious luminance saturation when excited by a high-powerdensity blue laser.

关键词： luminous lighting saturation

Glass crystallization making red phosphor for high-power warm white lighting

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Light(Science & Applications) 2021年第4期10卷 570-581页

作者： Tao Hu Lixin Ning Yan Gao Jianwei Qiao Enhai Song Zitao Chen Yayun Zhou Jing Wang Maxim S.Molokeev Xiaoxing Ke Zhiguo Xia Qinyuan Zhang School of Physics and Optoelectronics State Key Laboratory of Lum inescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied TechniquesSouth China University of TechnologyGuangzhouGuangdongChina Anhui Key Laboratory of Optoelearic Materials Science and Technology Key Laboratory of Functional Molecular SolidsMinistry of EducationAnhui Normal UniversityWuhuAnhuiChina School of Applied Physic and Materials Wuyi UniversityJiangmenGuangdongChina Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and TechnologiesKLGHEI of Environment and Energy ChemistrySchool of Chemistry and Chemical EngineeringSun Yat-sen UniversityGuangzhouGuangdongChina Laboratory of Crystal Physics Kirensky Institute of PhysicsFederal Research Center KSC SB RASKrasnoyarskRussia Siberian Federal University KrasnoyarskRussia Research and Developm ent Department Kemerovo State UniversityKemerovoRussia lnstitute of Microstructure and Property of Advanced Materials Beijing University of Technology BeijingBeijingChina

Rapid development of solid-state lighting technology requires new materials with highly efficient and stable luminescence,and especially relies on blue light pumped red phosphors for improved light quality.Herein,we discovered an unprecedented red-emitting Mg_(2)AI_(4)Si_(5)0_(18):Eu^(2+)composite phosphor(λex=450 nm,λem=620 nm)via the crystallization of MgO-AI_(2)O_(3)-Sio_(2) aluminosilicate glass.Combined experimental measurement and first-principles calculations verify that Eu^(2+)dopants insert at the vacant channel of Mg_(2)AI_(4)Si_(5)0_(18)crystal with six-fold coordination responsible for the peculiar red emission.Importantly,the resulting phosphor exhibits high internal/external quantum efficiency of 94.5/70.6%,and stable emission against thermal quenching,which reaches industry production.The maximum luminous flux and luminous efficiency of the constructed laser driven red emitting device reaches as high as 274 Im and 54lm W^(-1),respectively.The combinations of extraordinary optical properties coupled with economically favorable and innovative preparation method indicate,that the Mg_(2)AI_(4)Si_(5)0_(18):Eu^(2+)composite phosphor will provide a significant step towards the development of high-power solid-state lighting.

关键词： power pumped lighting

Cyan phosphors for full-visible-spectrum lighting: shining new light on high-CRI white pc-LEDs

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Science Bulletin 2019年第22期64卷 1649-1651页

作者： Xiaoyong Huang Institute for Advanced Study Shenzhen University College of Physics and Optoelectronics Taiyuan University of Technology

Nowadays,solid-state lighting sources based on white lightemitting diodes(LEDs)are extensively replacing the traditional illumination devices(incandescent and fluorescent lamps)due to their unique and appealing properties,such as high efficiency,high brightness,long working lifetime,small size,fast response time and eco-friendliness[1-4].Because of this,white LEDs have permeated deeply into many important sectors,including indoor and outdoor lightings,signals,displays and therapeutic applications.In order to make sure that white LEDs can provide artificial lighting source with good color quality and high vision performance,there are several important figures of merit that are used to characterize white LEDs:color rendering index(CRI),correlated color temperature,luminous efficacy of radiation and luminous efficacy.

关键词： lighting white luminous

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Feed intake pattern of broiler chickens under intermittent lighting:Do birds eat in the dark?

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Animal Nutrition 2019年第2期5卷 174-178页

作者： Inês Rodrigues Mingan Choct School of Environmental and Rural Science University of New England

This paper reflects the results of a short experiment conducted in parallel with a larger trial which aimed to test the assumption that ’consumption of feed by broiler chickens during periods of darkness is largely negligible’. To that effect, on d 31, feeders of birds raised under intermittent lighting(IL), i.e. 1 h of light[1L]:3 h of dark(3D):1L:3D:1L:3D:1L:3D:2L:6D, were weighed at the onset and at the end of each period of darkness(or scotoperiod). Moreover, in order to compare the feeding behavior of IL birds with that of broilers raised under continuous lighting(CL, i.e, 18L:6D), their feeders were weighed in parallel and at the same time points. On d 31, feed intake of IL birds during scotoperiods represented 45% of their 24 h feed intake. Both CL and IL birds presented anticipatory feed intake prior to the long nocturnal period of darkness(6D), as well as higher feed intake right at the onset of lighting at 06:00. Feed intake of CL birds during the 6D nocturnal scotoperiod was negligible at around 2% of their total feed intake. Intermittent lighting birds exhibited excitement at the start of each hour-length scotoperiod and, within that time,ingested around 2.5 times the amount of feed ingested by CL birds. Although short, this study revealed several interesting observations which might be worth further exploring in a larger, lengthier, behaviorfocused experiment. Amongst other factors, it might be interesting to understand whether the high feed intake observed during scotoperiods for IL birds in reflective of the whole flock or rather a coping mechanism developed mainly by hierarchically lower-ranking birds to achieve their daily feed intakes requirements.

关键词： Feeding behavior lighting program Photoperiod Scotoperiod

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三、说明文

疯狂英语（新策略） 2024年第1期 58-64,79页

作者：无本刊试题研究中心

Task 1 Jeremiah Thoronka was born in the fighting of the Sierra Leone civil war and grew up in the gutter(贫民窟)in the suburbs of the capital Freetown,having to burn wood for lighting and heating.Jeremiah saw with his own eyes how like himself,in addition to the smog making breathing problems common,his young contemporaries fell behind in their schoolwork because of a lack of decent lighting.

关键词： lighting fighting 说明文