de Luna Javier Muñoz, Fernandez-Balbuena Antonio Alvarez, Vázquez Daniel, Melgosa Manuel, Durán Humberto, García Jorge, Muro Carmen
Departamento de Óptica, Universidad Complutense de Madrid, Facultad de Óptica y Optometría, Madrid, Spain.
Departamento de Óptica, Universidad Complutense de Madrid, Facultad de Óptica y Optometría, Madrid, Spain Departamento de Ingeniería y Gestión Forestal y Ambiental, Universidad Politécnica de Madrid, Madrid, Spain.
Appl Spectrosc. 2016 Jan;70(1):147-55. doi: 10.1177/0003702815616742.
The use of non-invasive spectral measurements to control the conservation status is a part of the preventive conservation of artworks which nowadays is becoming increasingly interesting. This paper describes how to use a spectral measuring device and an illumination system specifically designed for such a task in a very large dimension artwork painting (7.8 m wide × 3.5 m high). The system, controlled by a Cartesian robot, allows spectral measurements in a spectral range of 400-780 nm. The measured data array has a total of 2201 circular regions with 5.5 mm spot diameter placed on a square grid. Colorimetric calculations performed from these spectral measurements may be used to characterize color shifts related to reflectance changes in specific areas of the paint. A color shifting from the expected gray has been shown.
使用非侵入式光谱测量来控制艺术品的保存状态是如今越来越受关注的艺术品预防性保护的一部分。本文描述了如何在一幅非常大尺寸的艺术画作（宽7.8米×高3.5米）中使用专门为此任务设计的光谱测量设备和照明系统。该系统由笛卡尔机器人控制，可在400 - 780纳米的光谱范围内进行光谱测量。测量数据阵列共有2201个圆形区域，光斑直径为5.5毫米，放置在正方形网格上。从这些光谱测量中进行的比色计算可用于表征与特定颜料区域反射率变化相关的颜色变化。已显示出与预期灰色的颜色偏移。
