ghost image
noun [ C ] uk/ˌɡəʊst ˈɪm.ɪdʒ/ us/ˈɡoʊst ˌɪm.ɪdʒ/
重影
a faint second image (= one that is pale and not strong or clear) that appears close to another image, usually because of a fault with a system or device or with someone's sight
The weird blue ghost images are produced by my camera, which has something wrong with it. 我的相机有问题，拍出的照片上面有奇怪的蓝色重影。
- More examples
- The TV picture in these remote stations was far from perfect, often compromised by ghost images and snow.
- I encountered some ghost images when viewing Jupiter with a low-powered telescope.
- If laser eye surgery goes wrong it can cause visual symptoms, including glare, halos, ghost images, and blurred vision.
- Interference and ghost images caused by reflections of the received signal are more easily cancelled out in a digital television.