| 弯 |
wān yuè xíng tòu jìng | meniscus lens |
| 弯 |
wān | to bend / bent / a bend; a turn (in a road etc) / CL:道 |
| 弯 |
wān yuè | crescent moon / crescent shape |
| 月 |
yuè | moon / month / monthly / CL:个,轮 |
| 形 |
xíng | to appear / to look / form / shape |
| 透 |
tòu | (bound form) to penetrate; to seep through / to tell secretly; to leak / thoroughly; through and through / to appear; to show |
| 透 |
tòu jìng | lens (optics) |
| 镜 |
jìng | mirror / lens |