摘要
【目的】为考察初烤烟叶在不同照明条件下的视觉反映,以期为烟叶评级准确性和自动化提供参考。【方法】运用感官分析技术,分析了烟叶在3个自然光处理和11个人工照明处理环境中的视效。【结果】(1)在自然光条件下,即便色温的变化较大,烟叶的视觉反映却无明显差异;(2)在人工照明条件下:当相关色温为5000~5100 K、一般显色指数大于90、照度大于400 lx时,烟叶的黄色、青色、平滑、褪色、灰色和红色等外观特性的视觉反映接近自然呈现;当相关色温或一般显色指数超出该区间时,烟叶部分外观特性的视觉反映将被明显强化或弱化;当照度低于400 lx时,视效模糊,烟叶的光泽度和对比度被弱化。【结论】烟叶评级活动若在人工照明条件下进行,相关色温应为5000~5100 K,一般显色指数应大于90,照度应大于400 lx。
[Objective] This study aims to investigate the visual reflection of flue-cured tobacco leaves under different lighting conditions, so as to provide reference for the accuracy and automation of tobacco grading. [Methods] The visual effects of tobacco leaves in 3 natural light treatments and 11 artificial lighting treatments were analyzed by sensory analysis technology. [Results] Results showed that: 1) Under natural light conditions, there was no significant difference in the visual reflection of tobacco leaves even if the color temperature changed greatly. 2)Under artificial lighting conditions, when the correlated color temperature was 5000-5100 K, the general color rendering index was greater than 90, and the illuminance was greater than 400 lx, the visual reflection of appearance characteristics of tobacco leaves, such as yellow,cyan, smooth, fading, gray and red was close the natural presentation;when the correlated color temperature or general color rendering index exceeded the range, the visual reflection of some appearance characteristics of tobacco leaves would be obviously strengthened or weakened;when the illuminance was lower than 400 lx, the visual effect was blurred, and the gloss and contrast of tobacco leaves were weakened.[Conclusion] If tobacco leaf grading is carried out under artificial lighting conditions, the correlated color temperature should be 5000-5100 K,the general color rendering index should be greater than 90, and the illuminance should be greater than 400 lx.
作者
范建立
张永安
范明登
陈少滨
齐凌峰
黄剑滨
范坚强
包可翔
李锐
FAN Jianli;ZHANG Yongan;FAN Mingdeng;CHEN Shaobin;QI Lingfeng;HUANG Jianbin;FAN Jianqiang;BAO Kexiang;LI Rui(China Tobacco Fujian Industrial Co.,Ltd.,Xiamen 361021,China;Longyan Gold Leaf Redrying Co.,Ltd.,Longyan 364102,China;China Tobacco Company,Beijing 100055,China)
出处
《中国烟草学报》
CAS
CSCD
北大核心
2021年第6期52-57,共6页
Acta Tabacaria Sinica
关键词
色温
一般显色指数
照度
烟叶
视觉反映
color temperature
general color rendering index
illuminance
tobacco leaf
visual reflection
