The beneficial effects of light on human non-image forming processes are subject to much research interest and are outlined in this article. Known mechanisms of impact include those on the circadian timing system, the arousal system and the affective system. An indication is made that it is important to consider the characteristics of the light field not just the light source when making recommendations concerning light of certain spectral quality. What types of light field are people exposed to on a regular basis and can these lit environments be considered beneficial? How much do these lit scenes differ in terms of spectral composition, as well as in light distribution patterns and illuminance levels, from those conditions that are currently suggested for optimising occupant health and wellbeing? A representative set of natural and built lit environments were identified ranging from seascapes/landscapes to an urban square and various interior architectural environments. A photometric and colorimetric snapshot was measured during the midday hours, to replicate the visual field as viewed from the perspective of the observer. The measured spectral irradiance of light received at the cornea was converted into derived lighting metrics that are the subject of current recommendation: relative sensitivity curve (V λ), vertical/horizontal illuminance ratio (E_v/E_h), cylindrical illuminance (E_c) and circadian stimulus. The data were analysed to demonstrate that the indications are that more natural lit environments are expected to be beneficial. Discussion follows about the relative importance of spectral composition, intensity and light distribution within the visual field and how these might combine to optimise our health and wellbeing.

Practical application: Architectural and engineering designers are being encouraged to devise environments that promote human health and wellbeing. New lighting metrics are being suggested and this article seeks to indicate how effective these metrics are in their ability to characterise these lit environments.

光对人类非图像形成过程的有益影响受到很多研究兴趣，并在本文中进行了概述。已知的影响机制包括对昼夜节律系统，唤醒系统和情感系统的影响。表明在提出有关某些光谱质量的光的建议时，不仅要考虑光源，还必须考虑光场的特性。人们定期暴露于哪种类型的光场中，这些光照环境是否被认为是有益的？这些照亮的场景在光谱组成，配光方式和照度水平上有多少不同，从目前建议用于优化乘员健康和福祉的那些条件？确定了一组具有代表性的自然和建筑照明环境，范围从海景/风景到城市广场以及各种室内建筑环境。在正午时段测量了光度和比色快照，以复制从观察者的角度观察的视野。角膜处接收到的光的光谱辐照度被转换为派生的照明指标，这是当前推荐的主题：相对灵敏度曲线（从观察者的角度复制视野。角膜处接收到的光的光谱辐照度被转换为派生的照明指标，这是当前推荐的主题：相对灵敏度曲线（从观察者的角度复制视野。角膜处接收到的光的光谱辐照度被转换为派生的照明指标，这是当前推荐的主题：相对灵敏度曲线（Vλ），垂直/水平照度比（E _v / E _h），圆柱照度（E _c）和昼夜节律刺激。对数据进行分析以表明迹象表明，预期在更自然的光照环境中将是有益的。随后讨论的是光谱成分，强度和光分布在视野内的相对重要性，以及这些因素如何结合起来以优化我们的健康状况。

实际应用：鼓励建筑和工程设计师设计能够促进人类健康和福祉的环境。提出了新的照明指标，本文力求指出这些指标在表征这些照明环境方面的有效性。