A diverging lens(发散透镜) deviates(使偏移) parallel light outward as though it originated at a single virtual focal point(虚焦点).
举一反三
- ______透镜对光有发散作用，所以又叫发散透镜．
- 与英文“lens”"“focus”“focallength”“opticalcenter”意思相对应的是（） A: 透镜，焦点，焦距，光心 B: 焦距，焦点，光心，透镜 C: 光心，焦距，焦点，透镜 D: 透镜，焦距，焦点，光心
- 下列哪些Light可以产生投影？（） A: Spot B: Point C: Parallel D: Ambient
- _____ is the focal point in an opera house?
- That is a ______ point in his argument. A: focal B: vocal C: ocal