Carlsson L, Knave B, Lennerstrand G, Wibom R
Acta Ophthalmol Suppl. 1984;161:84-93. doi: 10.1111/j.1755-3768.1984.tb06787.x.
Glare effects on visual acuity and contrast sensitivity were studied at outdoor timber terminal work with conventional far-reaching floodlighting and with a new type of oblique floodlighting with an asymmetrical light distribution. The binocular work visual acuity of 19 volunteers was measured at 40, 55 and 80 per cent contrast and the contrast sensitivity of 14 volunteers at spatial frequencies of 0.5, 1, 2, 4, 8 and 16 cycles/degree. With the light source 15 degrees from the centre of the visual fields the visual acuity as well as the contrast sensitivity was consistently lower with the conventional type than the new type of floodlight . The results thus indicate that not only the vision of details is impaired by glare but also the contrast perception of sparse patterns. In standardized rating scales the timber terminal workers scored the difference in glare between the two floodlight systems as "great"--"very great".
在户外木材码头工作环境中，研究了常规远射泛光照明和新型不对称光分布斜射泛光照明对视力和对比敏感度的眩光影响。在对比度为40%、55%和80%时测量了19名志愿者的双眼工作视力，在空间频率为0.5、1、2、4、8和16周/度时测量了14名志愿者的对比敏感度。当光源偏离视野中心15度时，常规泛光照明类型下的视力和对比敏感度始终低于新型泛光照明。因此，结果表明，眩光不仅会损害细节视觉，还会影响稀疏图案的对比度感知。在标准化评分量表中，木材码头工人将两种泛光照明系统之间的眩光差异评为“大”——“非常大”。
