一款光学解谜游戏，玩家需要利用光学透射、反射原理，利用单面镜、分光镜、过滤器、多棱镜等道具，分别将蓝色、红色光束送到各自的目的地。

完整版解锁补丁下载：http://bbs.51ipa.com/thread-558-1-1.html

FEATURES: 
- Easy to use, intuitive interface 
- An 8 step tutorial to walk you through the basics 
- Multiple solutions to most puzzles 
- 24 puzzles with the initial download 
- Solve puzzles on various board sizes and difficulties 
- Challenging and fun puzzle mechanics 
- Progress saving - if you're stuck on a puzzle, you can come back to it at a later time and not have to start from scratch 
- Option to add more levels once you're done with the first 24... 
- NO ADS

版本 1.5 中的新功能

Solution Sharing! All shared solutions will be published to the solutions page on http://lumi.icarus7.net