CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'non-interactive',cRay: '9134088428ab5f87',cH: 'jHzvsBiNLACTV4TJk2ju2utTuMGk2zHU4C.5_.AN0Ac-1739777019-1.2.1.1-eErLGcWV2fIombjXOOfB1J0y_BN6.XfPTtX0GgoEA1E1ZWJowQ2zot.WKNADj_RT',cUPMDTk: "\/abstracts\/search?q=L%C3%BCsher%20color%20diagnostics&__cf_chl_tk=xdFXT9qVyYfTxV3WRNqsjSZgYwqk7Qa2kZkDbIESbFM-1739777019-1.0.1.1-acniTxzcRBZlYfVJACHZpDdp2oqCZXxfWvc.SDRD_ek",cFPWv: 'b',cITimeS: '1739777019',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=L%C3%BCsher%20color%20diagnostics&__cf_chl_f_tk=xdFXT9qVyYfTxV3WRNqsjSZgYwqk7Qa2kZkDbIESbFM-1739777019-1.0.1.1-acniTxzcRBZlYfVJACHZpDdp2oqCZXxfWvc.SDRD_ek",md: "Vald4fyCIBWrFY5BvnVvAXUQcjjoJKSkNvlE2VCTKKE-1739777019-1.2.1.1-DSnfobbanTAqbGfWHNULjWduLls7NDu.7W4yYB.kvT2qn90XRCSx0PvrXNWIZgmL4sykHaRbGkRpdvfFdujRVVKc3LnE7JSDJFtFrs45V.ylIjgJw.kZWSWcFlqipoB3alg4hIa0C8d0MskffMn42ipPBG6j.ESAQWEPTuKy1YBx_BfqQq_OBIsy1zDLHycQNK6Dcn2D4zHSmNzvbDEJR1XzSkdHIhEUnF.ghNSszqJ5e6RWnrYcjb44rNSPJs.iY8uzMv1zfuERQzlD8jydtFvBWGsxRKpBT_aNiwGbWohTGZKwiwEL5X7K65M_Kv5qGGlXdwik6JFH.ZGpdruFMAyPWpQjK.QAJz.Oc6b62J8g93_tmaxPyTr1qZ0YYyFFqvcFSdzzTqavFfuy09R5Z_N4GvkmlvD8OIzB6I0qV9E0B9KrxpkaxErWh1RgmKySWo28NFEWS7ZZ3SjYXTmc._tyzaEKMaUgcprItMqlYh6AIB7DCSpa017KeyE.qp8sRkDIZqlVq0P_F1RPL.DtOQQAkBnXfas89PYH8_S1s29BcEmyJXUbfHYrrzlBOm178McfVXOMpEbPZLxfdVlqxByHjUNPf0leNuiG6mZhE9IkRIoEo8ImquZQi4_bIadc6XFfckvsyIwwL2U6y4ent7UUVHceufr68bLyg6SqBLN3pEC8LzMvuFq4kBeVv.vWhJWmYQ76l_0JdM0BdZXNjoWpyfYMxWfcuvmRC1QmL6TsZU0aPCNamS3S4Ks5LNYexFKMKan5IdgfYrN3Xt_PimPV2nig_qzi7_PtruVCkpKsU_C0pig2rEuRHHAACskna6nt5ZBlEtgBiigCV4Pnr.4KLXMe9DU8nkFFt_slWy2RREbYALg71Yz9F93Sv.LfW3MU6PJgG0vKOa7Ulzq2CjPV81QQp4rtLfmtxlHemJU4dtmXqb2gF7TbQW6KDeXZnfDjaxlCHJwXAUe9p7v9ZhL1brSFZ3Na3po7cQu6dr.4jHVumuPTyXu2xyDvJxuBXFlJ2FMgjvK6iSnmgwZHWQ4bnyJNQZkC0LYR0xPzt9PICBcsgc4zeLvXlrr.fBq8JXxRql_DS9qdVsGvovoBbMzqc9HdVv633nHhhZPKCDsm4IRo_WJotQ6h5ubZSYOrAB9foZpyk9Wk8ZreidAbll3B7cFYySqU5RVJk5ENk3z1qF8p_LeDJQLYNddHHuQru59ZJvcBJNYkkH.HC5rADy.y1iJm22UHWqvRIsp4r4HrGGTZNigZkL9xYm_zwe2d0tXJ2hfUdxBHMp2JOWbEWvtUBROvHr64wKPenQ7m3i6i26DTm32hS68TjOBkELoq9VulMsu2muMYGHHJC2iilGbdd1WBtytlWgDqtY.bI8e8Hqpi8drZZAnOjVWhRtrKL9_SvTBhC.cwuUFwrZqaZUMQOVzuN.eyXOy.1FBq91opkHwTOyUIn4WrnWPKxbc1t7VqX2APITduzzBj.3gWmAjQsaiHpdCI7lXqKBW9IwxDt.zxBdSx4IjltI28BFFLdFa4D_TS86zWIY1iXR5ioxjY0HubKR254yEMWnsBKwgToae3E0gy6QfLm.gv59IM7cFstxRu8sUAx_q65YmruQLyq7KdeqO8enPn_Y93g9Z4RlM8y72.WtwgVOEqEhfCN4FzX1CNYL_hQYxvUEmqKj5RZZ_RRzyRC6IpqBS5F02WJg19zYSw.83MdNqTKm0SqBk2dfmyd1xH9Acn01a_jGhzGDakityIXTJDSMT601B4Dry4zH.2aCpbKEmtaBcaRu7_jG3RQUggsVCrH_FsY.qj2Ti0ppR..vygrv4DYbI4q2fVfj63lBoBH1X4kP608VBbsbrfvKfuFJhQ2d0TxBrzKic99LEYvnXb8SLIlMV24aOTuGr7e5fCcnzYQxs2VnrUTL7iDn99Fa2j92rzYYX4HvgKmFWG7a6sgv9YlLzhlLg9Cl6PtdkBVrr8fauTxtHVjL4cX..SWRkasypiqg",mdrd: "Np0cu0ckgUMeU.p7_BlvzGb_rJ8GWLkpJb7XobeXnU4-1739777019-1.2.1.1-Kmy6BG3Ui2i1jFgB5U_J08gOjuMaurbLGvgG5eVra1jadFtZXc2bb2bSOC3J1x5Zb9aHZowf20RxjapdlWwfN_dMDkwW2yVFzbkOCJ437_b2yBbdrgiK3K0yxjm3T8nkTrOeAuCVrHDzBqm8F1PXaMNEmb_6TatkrVB3LYQ9kbL3ytJR3GxllY2x6E4MVzWhsWmulU6bY5aUkSgjBKYCzyMknpGRG4xTSW54f7GcQHsxXz5Ay_otVHC6RWln7urTi9by.yCU9KX60MtHbv6MytolUUdLOk.L_WLshFXfZSBTd9C66OQ1ecPvUCla0RItzxzMc0Dgwvvh269qBKJ_7Vbmei9s3MlQLYN94NyOYSFZxmRw8FT4wgldHZsm6T73TcyyhNwxmndWI6dpY4ZEijyUTMZ1csUH9uElbV4xZsivuhVnRYmoViC1rfT5go72wX3m58tA8OwLov7EI14blOaf_Fxy8QP.0OoZ2aalKCRGU_fT5mgeDyDT9LikRBo7mP52xxZk.FVk5INr5WKzdkGto_KLEuOdPnR0nBYjkpTLNWM4Vq.BU4OADEaQMIGttJte2iInpayNkfiXAL2s3HeBYK6zCyA6qKlLJay2R8pndGyicHHww_nXunsSFdb84LTO1Zuz9XDpI7egIyA4HLEUMMN0tWTDLRKWSBNXz0equvpaCNC.NzGbPOPO92EYdjEb9jhf0doTPS16Qe_t8M4Lh7EvY745l_BZKW43Xw_t_cGaxeb0hCyaxys15UgJnkgMm92GaggaR2eTelV2YEDbDy4AD85ISiVm2bfwyGupEKY9_oMetDSXEWtmAKYA0vLKUN_PxAl3nZ96DOhBFLCk93B4LGxFI1F863qtgypxGf.44v1SB8wJa7ZqY9XsKNmB0FgK7hvsqdZkxLFMf3jUUdhDDDBIxp0mmrzLTROgtfDNbIlc0AOF7oazHmzmr7pyvj97D6JoTTIrXQ0_wTK0_K72Yso5QlNHtR23n0smAcW6mhimCJ88yP6cZcozlce3FBQmDq45h3E.5ppCXPij6dcpeefEMBWkeKJh0vBwmOwFvVxlanfqJJDxSWgRxclmyBYuZ2XxtYn5SadR5CVMELjJywPrmX2_MQrcGlOJM0o57p4G8ZSplaTH4gDV5GqXDscpo_6.v7XdDNI4Su71ypiDclDoB364mDxi1h13_YYDEEtoWxFhU5jvI8fdwoiVlaXWsSn20HBy7yR83ccZcXsaoIHgSSfCA_lFkiqB6Y9kawNUICQ7hfAJ9WIcsaLQj3KL.4azj.qO7x7TsiAI2IlwDLnNg44lq8ikPA.QjlWhiYvAnMDTUvgMerpewdhyElDgx4KNCbzJNtnYY5D40fxlZOpx4GiPrADZS1WVbeYq3GMGWvXrsEvKDOu5XfltDf1gu3ndh8vCeZDWUG2YkGG47wOzv4B6bz5XlFIvfPEB0cCBgFcIci6iXtaNzyH1MbbNyyQ2.grd3RqEOXXccizJ9SZIhvLp4Fb72KpI.fCSnxnQCBTLyG0RhZHDcw6d_SH0o48HRZYK.w3IOqcMvBbV1IOyaozaOenbEQgEp_QtwlgpVuXV6xQbBVpWbykLFNS2afqik0Il_4JOuJXvZfj43VrhcZUZgRanc2vCYt3ysqcxrzGpdZbS9ZYu1dD4roKLjPE3j5TxWK9kg7Z_ymnWvYZS3KgNRkk4Prw88VySBIdiXEQobdVt2aBIbNpPiINn0K73tz13XiZdkBW_yrpFOBsoc9Gr13DqfwcrKvp1tcZYoIm9KL1F9c7l2kJSHBxnaAvC_3hrCRX3N0eA5ukF8To8vo1K1hIdKD0AU4OBWME8GAwFIYAwQ.0n.qr19IznTePauXZgTTy1Yt9Kgc1M3GdptF1JeiuMK0aeEdB_fKypnkPa2P07H3ncY.wRx9mFaO7dC3rkIeotZBmHuxw9t41Yd5ERU2CR93K.CSx8CNxp2mBmrOOg2Hyj"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134088428ab5f87';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=L%C3%BCsher%20color%20diagnostics&__cf_chl_rt_tk=xdFXT9qVyYfTxV3WRNqsjSZgYwqk7Qa2kZkDbIESbFM-1739777019-1.0.1.1-acniTxzcRBZlYfVJACHZpDdp2oqCZXxfWvc.SDRD_ek" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>