弯月形透镜

彎月形透鏡

wānyuèxíngtòujìng

noun

Measure Word

一片弯月形透镜 piàn

Meanings

1 meniscus lens
2 crescent-shaped lens with one concave and one convex surface

Characters

to pass through

Examples

这台显微镜里用了一片弯月形透镜。

Zhè tái xiǎnwēijìng lǐ yòng le yī piàn wānyuèxíngtòujìng.

This microscope uses a meniscus lens inside.

弯月形透镜可以减少像差。

Wānyuèxíngtòujìng kěyǐ jiǎnshǎo xiàngchā.

Meniscus lenses can reduce optical aberration.

Tips

memory

弯月形 = 'crescent-moon-shaped'; 透镜 = 'transparent mirror' = lens. Together: a lens shaped like a crescent moon. The English 'meniscus' is the Greek word for the same shape (μηνίσκος, 'little moon').

Stroke Order

弯 wān

月 yuè

形 xíng

透 tòu

镜 jìng