Vienot F, Chiron A
Laboratoire de Physique Appliquée, CNRS UPR 257, Paris, France.
Vision Res. 1992 Mar;32(3):533-40. doi: 10.1016/0042-6989(92)90245-e.
Three normal observers made visual matches from 0.03 to 100 td on a 10 degree central field at 445, 560 and 630 nm, using two different methods: heterochromatic flicker photometry and direct comparison brightness matching. In a relative sensitivity vs illuminance plot, the brightness matches underwent smooth changes, while the flicker curve exhibited a step-like transition around 1 td, between two separate branches. A reverse Purkinje shift was found on the high mesopic branch at 630 nm, possibly due to cone-cone interactions, and on the low mesopic branch at 445 nm, with questionable origin. At 630 nm and 0.03 td, both methods yielded matches that were not truly scotopic but might not have addressed the same mechanisms.
三名正常观察者在445、560和630纳米波长下,使用两种不同方法(异色闪烁光度法和直接比较亮度匹配法),在10度中央视野上从0.03到100 td进行了视觉匹配。在相对敏感度与照度的曲线图中,亮度匹配呈现出平滑变化,而闪烁曲线在1 td左右呈现出阶梯状转变,位于两个不同分支之间。在630纳米的高半暗视觉分支上发现了反向浦肯野位移,可能是由于视锥细胞间的相互作用,在445纳米的低半暗视觉分支上也发现了反向浦肯野位移,但其起源存在疑问。在630纳米和0.03 td时,两种方法得到的匹配结果并非真正的暗视觉结果,但可能涉及不同机制。