astigmatizer

/uh-stig-muh-tahy-zer/US // əˈstɪg məˌtaɪ zər //

散光镜,散光器,聚光镜,散光仪

Definitions

n.名词 noun

1
Optics.
- : a cylindrical lens used in a rangefinder to draw out the point image of a point source into a line.