人眼眼內散射與波長相依性之研究;The study of wavelength-dependent ocular scatter in human eye

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/54229

Title:	人眼眼內散射與波長相依性之研究;The study of wavelength-dependent ocular scatter in human eye
Authors:	鄭詠仁;Cheng,Yung-jen
Contributors:	光電科學研究所
Keywords:	眼內散射;Intraocular Scattering
Date:	2012-08-07
Issue Date:	2012-09-11 18:40:20 (UTC+8)
Publisher:	國立中央大學
Abstract:	在本論文中，主要利用閃爍之心理物理學實驗方式量化人眼在不同波長、不同視角時之眼內散射強度並分析其實驗結果。首先測試了實驗之可重複性，接著量測了分別為450、555、610、670四種波長之眩光源，以及與視軸夾5、10、15、20、30、45度眩光源之眼內散射程度，受試者一共有七位，年齡在23至25歲之間，左右眼皆有作測量；實驗結果顯示，眼內散射之強烈程度在短波長較高，隨著波長增加而有減少的現象，接著在長波長又再度增加；為分析趨勢，我們建立了一個數學模型，模型中包含Rayleigh Scatter、Mie Scatter、視網膜基底反射以及老化影響等四種不同因素對眼內散射之影響，並以這四種因素在實驗結果中所佔之百分比做分析；最後，將實驗結果與常見的失能眩光公式作比較，發現我們的實驗結果與CIE失能眩光公式形式較為匹配。The main content of this research includes a quantification experiment for intraocular straylight from glare sources with varied wavelengths and glare angles. This study first confirmed the repeatability of this setup by repeating the experimental process for 4 times. Then the experiment was performed to measure the straylight parameters from 7 subjects in the following conditions: four glare source wavelengths, 450, 555, 610 and 670 nm, and six glare angles, 5, 10, 15, 20, 30 and 45 degrees. The result showed the stronger scatter at short wavelength of glare, the decay with the increment of the wavelength value, and finally a boost at long wavelength value. The explanation for the results in the discussion revealed a coupled model of Rayleigh scatter effect, Mie scatter effect, fundus reflection and aging effect. At last, the comparison between the results with well-known disability glare equation showed a good match with the CIE disability glare equation.
Appears in Collections:	[Graduate Institute of Optics and Photonics] Electronic Thesis & Dissertation

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