Abstract: The concept of  "lightscape", or landscape which is mainly caused by lighting or the changing of light and shade is proposed. The necessity of establishing the discipline of lightscape is also illustrated. Some typical lightscape examples in the world from ancient time up to now are introduced. The main points and possible research topics about this discipline are described.

Key words: lightscape, discipline of lightscape, daylighting and lighting

摘要： 文章提出光景的概念并阐述建立光景学的必要性。所谓光景指的是由光（包括自然光与人工光）作为主要元素以构成的景观，是视觉风景的一个特殊方面。文章介绍了古今中外若干典型、有代表性的光景案例，并阐述了光景学的主要内容和可能的研究课题。

关键词: 光景, 光景学, 照明与采光