Current Developments in Lens Design and Optical Engineering XX最新文献

A laser pumping double-light-source module with photon-recycling 具有光子回收的激光泵浦双光源模块

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-09-05 DOI: 10.1117/12.2529735

Shih-Kang Lin, Yu-Wen Su, X. Lee, Y. Yu, Tsung-Hsun Yang, Ching-Cherng Sun

引用次数: 0

Consumer electronic optics: how small a lens can be using metasurfaces 消费类电子光学:使用超表面的透镜可以有多小

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2531932

S. Thibault

引用次数: 2

Introducing a dynamic deep neural network to infer lens design starting points 引入动态深度神经网络来推断透镜设计起点

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2528866

Geoffroi Côté, Jean-François Lalonde, S. Thibault

引用次数: 4

Perovskite-on-polymer microspheres for optimized solid state lighting 用于优化固态照明的钙钛矿聚合物微球

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2531106

Ziqian He, Caicai Zhang, Yajie Dong, Shin‐Tson Wu

{"title":"Perovskite-on-polymer microspheres for optimized solid state lighting","authors":"Ziqian He, Caicai Zhang, Yajie Dong, Shin‐Tson Wu","doi":"10.1117/12.2531106","DOIUrl":"https://doi.org/10.1117/12.2531106","url":null,"abstract":"Remote downconverters such as phosphors or quantum dots that are physically separated from the blue light-emitting diode (LED) chips can strongly enhance the luminescence efficiency of solid-state lighting (SSL) and liquid-crystal displays (LCDs) because of their reduced light reabsorption. However, the high cost of traditional remote downconverters has limited their wide adoptions in these applications. Herein, we report a one-step, general synthesis method that can convert commercial light-diffusing polymer microspheres into highly luminescent perovskite-based downconverters at an extremely low cost. Involving a quick antisolvent-induced heterogeneous nucleation, our method creates well-dispersed perovskite nanoparticles anchored onto polymer microspheres and the whole process takes only several seconds at room temperature without any complex experimental setups. Significantly, the as-synthesized perovskite-on-polymer microspheres offer widely tunable, highly saturated colors with light-diffusing capability. The pure green-emitting CsPbBr3 manifests a high PL quantum yield of 70.6% and superior stability in water is also demonstrated. With these very saturated colors, we propose two configurations of integrating these microspheres into SSL systems. Further optimizations demonstrate that highly efficient, excellent color-rendering, and circadian lighting can be achieved. Thus, these luminescent microspheres hold great promise to be adopted as a low-cost, high-quality replacement for the traditional, expensive remote downconverters in SSL, LCDs and beyond.","PeriodicalId":10843,"journal":{"name":"Current Developments in Lens Design and Optical Engineering XX","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86826084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exposure of Restore-L camera optical elements to a simulated orbital radiation environment Restore-L相机光学元件在模拟轨道辐射环境下的曝光

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2531108

K. Miller, J. Heaney, J. Lauenstein, S. K. Brown, K. M. O'Connor, S. K. Miller

{"title":"Exposure of Restore-L camera optical elements to a simulated orbital radiation environment","authors":"K. Miller, J. Heaney, J. Lauenstein, S. K. Brown, K. M. O'Connor, S. K. Miller","doi":"10.1117/12.2531108","DOIUrl":"https://doi.org/10.1117/12.2531108","url":null,"abstract":"This paper reports on the exposure of visible wavelength camera optical elements to a simulated orbital radiation environment in support of the Restore-L flight project at NASA’s Goddard Space Flight Center. Borosilicate glasses with various metal oxide dopants - S-LAL8, S-LAL18, N-SF1, and the polycarbonate material Makrolon GP were exposed to electrons and protons of varying energies. Low energy (E ≤ 10keV) charged particles were used primarily to assess degradation to the antireflective coatings of the optical elements. High energy (E ~ 1 MeV) charged particles were used to evaluate degradation to the bulk material. Elements of S-LAL18, N-SF1, LaK9G15, and Makrolon GP were exposed to a representative atomic oxygen rich environment. Elements of S-LAL8 and Makrolon GP were exposed to intense ultraviolet radiation. Pre- and post-exposure transmittance measurements were used to quantify the effects on the elements tested in the simulated environment over the 0.3 to 1.2 micron wavelength range. Our measurement results will be discussed in the context of their robustness to the orbital environment and the known chemical constituents of the materials tested.","PeriodicalId":10843,"journal":{"name":"Current Developments in Lens Design and Optical Engineering XX","volume":"399 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74333887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fast measurement of chromatic BSDF and its application to LED lighting 彩色BSDF的快速测量及其在LED照明中的应用

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2532856

Y. Yu, Wei-Hsin Chen, Tsung-Hsun Yang, X. Lee, Ching-Cherng Sun

引用次数: 0

Contact lens design to third order to compensate the spherical aberration of the eye from Zernike polynomials 从泽尼克多项式出发，将隐形眼镜设计为三阶来补偿眼睛的球差

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2526476

O. garcia-lievanos, E. Terán-Bobadilla, Luis A Hernandez-Flores, Leticia Sanchez-Gonzalez

{"title":"Contact lens design to third order to compensate the spherical aberration of the eye from Zernike polynomials","authors":"O. garcia-lievanos, E. Terán-Bobadilla, Luis A Hernandez-Flores, Leticia Sanchez-Gonzalez","doi":"10.1117/12.2526476","DOIUrl":"https://doi.org/10.1117/12.2526476","url":null,"abstract":"To compensate the spherical aberration of the eye using the conic constant of the first surface of a contact lens for different refractive errors. Refractive errors were simulated by modifying only the first curvature of the cornea. For every refractive error was calculating Zernike polynomials using Optics Software for Layout and Optimization (OSLO) EDU edition with and without contact lens. To calculate the conic constant of the contact lens we use the Seidel sums for thin lenses from the longitudinal spherical aberration as it proposes V. Mahajan. The value of Zernike spherical aberration coefficient for the eye with farsightedness (+ 5.00 D) + spherical contact lens was 0.142691 μm. The conic constant value to compensate the spherical aberration was -0.222995 and the value of Zernike spherical aberration coefficient of the eye + aspherical contact lens was 0.004354 μm. The value of Zernike spherical aberration coefficient for the eye with myopia (- 5.00 D) + spherical contact lens was 0.144505 μm. The conic constant value to compensate the spherical aberration was -0.101424 and the value of Zernike spherical aberration coefficient of the eye + aspherical contact lens was 0.072820 μm. The proposed method allows us to design contact lenses that compensate for the spherical aberration of the eye from the Zernike polynomials. Although the design of contact lenses is to third order, we obtain a smaller spherical aberration than the chromatic aberration on the axis without use optimization routine.","PeriodicalId":10843,"journal":{"name":"Current Developments in Lens Design and Optical Engineering XX","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89217339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of a calculation method of multi-color mixed phosphor spectrum prediction in white-light LED 白光LED中多色混合荧光粉光谱预测计算方法的研究

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2532858

Yong-Sheng Lin, Shih-Hsin Ma, C. Tseng

引用次数: 0

A water-polydimethylsiloxane liquid lens for variable focus experiments in an undergraduate laboratory 用于变焦实验的水-聚二甲基硅氧烷液体透镜

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2528398

Johannes F. Añonuevo, R. Guerrero

{"title":"A water-polydimethylsiloxane liquid lens for variable focus experiments in an undergraduate laboratory","authors":"Johannes F. Añonuevo, R. Guerrero","doi":"10.1117/12.2528398","DOIUrl":"https://doi.org/10.1117/12.2528398","url":null,"abstract":"Fluidic lenses offer tunability and flexibility that are not available with conventional solid lenses. The development of a variable focus lens has the potential for replacing bulky optical systems and allows the miniaturization of imaging optics used in digital cameras and mobile phone cameras. In this paper, a liquid lens platform for use in an undergraduate laboratory setting is presented. A variable lens is prepared by injecting water into bulk polydimethylsiloxane (PDMS) that remains uncured in its fluid state. We report the tunable focusing ability of this simple liquid lens system and analyze the change in focal length as a function of injected water volume. The water-PDMS interface acts as a diverging lens, in agreement with ray tracing analysis based on curvature and refractive indices. Variable focal lengths are measured with an optical set-up employing a helium-neon laser and a solid converging lens with focal length = 2.5 cm. By increasing the water volume from 0.05 to 0.30 ml, we are able to tune the focal length from -6.5 mm to -10.6 mm. Lens geometry remains spherical as the curvature of the lens changes with the addition of water. Our experiments coincide with a simple theoretical framework for a thick lens immersed in a medium. The water-PDMS lens is a promising component of basic and advanced experiments in an undergraduate optics course.","PeriodicalId":10843,"journal":{"name":"Current Developments in Lens Design and Optical Engineering XX","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79447822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deconvolution process with GPU in a wavefront coding microscopy system 波前编码显微镜系统的GPU反卷积处理

Current Developments in Lens Design and Optical Engineering XX Pub Date : 2019-08-30 DOI: 10.1117/12.2531457

Karina Ortega-Sánchez, C. Toxqui-Quitl, A. Padilla-Vivanco

引用次数: 0