Wiktionary
lace curtain
n. A thin, netlike curtain that lets light into a room, but obstructs vision from outside
Usage examples of "lace curtain".
Adjusting a thumbscrew at the mirror end, and thereby collapsing the tube together a bit, he resolved the blur into a chunk of ornamented window-frame with a lace curtain being sucked out of it, down at the other end of Charing Cross.
They were talking when she came to the window, moving the lace curtain only barely.
Now, from behind the lace curtain, we saw her, with her shawl flung carelessly round her shoulders, pursuing her burden as it stumbled away down the street.
Among the many unanswered questions, one issue that troubled me was the lace curtain.
Tyler took a step toward the window, moved aside the lace curtain and peered outside.