LCD-aided computer screen photo-assisted technique for colorimetric assays evaluation

被引:8
作者
Filippini, D [1 ]
Manzano, J [1 ]
Lundström, I [1 ]
机构
[1] Linkoping Univ, Div Appl Phys, Inst Phys & Measurement Technol, S-58183 Linkoping, Sweden
来源
SENSORS AND ACTUATORS B-CHEMICAL | 2004年 / 103卷 / 1-2期
关键词
colorimetric assays; (bio)chemical sensors; computer screen illumination;
D O I
10.1016/j.snb.2004.04.111
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The ability of the computer screen photo-assisted technique (CSPT) to evaluate color samples through its light transmittance profiles is demonstrated by using liquid crystal displays (LCD) as light sources. Transmittance profiles are more drastically affected by angular dependencies than those obtained with CRT illumination. A local light reference computation is introduced to counteract this effect yielding equivalent profiles for both kinds of displays thus allowing for a broader universe of platforms to perform CSPT experiments, including mobile devices. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:158 / 164
页数:7
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