Simultaneous measurement of foveal spectral reflectance and cone-photoreceptor directionality.
Simultaneous measurement of foveal spectral reflectance and cone-photoreceptor directionality.
复制标题
同时测量中心凹光谱反射率和视锥光感受器方向性。
作者：
Niels P. A. Zagers;J. van de Kraats;T. Berendschot;D. van Norren
本文介绍了一种同时测量视网膜中央凹光谱反射率和视锥光感受器方向性的仪器。关键元件是成像光谱仪（光谱范围为420-790 nm），其入射狭缝与人眼的瞳孔平面共轭。视网膜上的1.9度光斑在1秒内采样。视网膜和瞳孔的视频观察有助于正确对准。对21名健康受试者进行了测量。光谱模型分析提供了光稳定性眼部吸收剂的密度。作为一个例子，黄斑色素和黑色素进行了更详细的讨论。空间分布表现出光学Stiles-Crawford效应，反映了视锥细胞的方向性。
An instrument for simultaneous measurement of foveal spectral reflectance and cone-photoreceptor directionality is described. The key element is an imaging spectrograph (spectral range of 420-790 nm) with its entrance slit conjugate to the pupil plane of a human eye. A 1.9-deg spot on the retina is sampled in 1 s. Video observation of the retina and the pupil facilitates proper alignment. Measurements were performed on 21 healthy subjects. Model analysis of the spectra provided densities of photostable ocular absorbers. As an example, macular pigment and melanin are discussed in more detail. Spatial profiles exhibited the optical Stiles-Crawford effect, reflecting cone-photoreceptor directionality.
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DOI：
10.1093/ajcn/62.6.1448s
发表时间：
1995-12
期刊：
The American journal of clinical nutrition
影响因子：
--
作者：
D. Snodderly
通讯作者：
D. Snodderly
影响因子：
4.4
作者：
B. Hammond;E. Johnson;R. Russell;N. Krinsky;K. Yeum;R. Edwards;D. Snodderly
通讯作者：
B. Hammond;E. Johnson;R. Russell;N. Krinsky;K. Yeum;R. Edwards;D. Snodderly
DOI：
10.1364/josaa.16.000995
发表时间：
1999-05-01
影响因子：
1.9
作者：
Marcos, S;Burns, SA
通讯作者：
Burns, SA
DOI：
10.1364/josaa.14.001187
发表时间：
1997-06-01
影响因子：
1.9
作者：
Hammond, BR;Wooten, BR;Snodderly, DM
通讯作者：
Snodderly, DM