A spatially uniform illumination source for widefield multi-spectral optical microscopy.

A spatially uniform illumination source for widefield multi-spectral optical microscopy.
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DOI:
10.1371/journal.pone.0286988
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发表时间:
2023
期刊:
影响因子:
3.7
通讯作者:
--
中科院分区:
综合性期刊3区
文献类型:
--
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在宽视场生物成像应用中,照明均匀性是激发和数据提取质量的关键参数。然而,典型的成像系统由于非理想光学元件而遭受空间和光谱非均匀性,因此需要用于照明校正的复杂解决方案。我们提出了有效的均匀色光集成器件(欧几里得),一个简单的和具有成本效益的均匀性校正照明源。欧几里得采用漫反射、可调节的中空腔,其允许来自离散光源的光的均匀混合,并修改源场分布以补偿由成像系统中的光学部件引入的空间非均匀性。在这项研究中,我们的特点的光耦合效率的建议的设计和比较的均匀性性能与传统的方法。欧几里得在纳尔逊和克勒对准中的多光谱成像中表现出显着的照明改善,在宽视场中的最大空间偏差为1.1%。
Illumination uniformity is a critical parameter for excitation and data extraction quality in widefield biological imaging applications. However, typical imaging systems suffer from spatial and spectral non-uniformity due to non-ideal optical elements, thus require complex solutions for illumination corrections. We present Effective Uniform Color-Light Integration Device (EUCLID), a simple and cost-effective illumination source for uniformity corrections. EUCLID employs a diffuse-reflective, adjustable hollow cavity that allows for uniform mixing of light from discrete light sources and modifies the source field distribution to compensate for spatial non-uniformity introduced by optical components in the imaging system. In this study, we characterize the light coupling efficiency of the proposed design and compare the uniformity performance with the conventional method. EUCLID demonstrates a remarkable illumination improvement for multi-spectral imaging in both Nelsonian and Koehler alignment with a maximum spatial deviation of ≈ 1% across a wide field-of-view.
无需仪器的蛋白质微阵列制造,可实现准确的亲和力测量。
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