光栅

光柵
guāngshān
  1. (optics) grating
  2. grating

Wiktionary

Entry Composition

=1 光 guāng
  1. bright; shiny
  2. only; merely
  3. used up; finished
  4. to leave (a part of the body) uncovered

classifier: 道
=1 光 guàng
  1. (historical dictionaries only) to color
  2. to color
2 栅 zhà
  1. fence
  2. also pr. shān