像差

xiàngchā

noun

Meanings

1 (optics) aberration; image distortion in a lens or mirror

Characters

difference; deviation

Examples

这款镜头几乎没有色像差。

Zhè kuǎn jìngtóu jīhū méiyǒu sè xiàngchā.

This lens has almost no chromatic aberration.

工程师正在校正望远镜的像差。

Gōngchéngshī zhèngzài jiàozhèng wàngyuǎnjìng de xiàngchā.

The engineers are correcting the telescope's aberration.

Tips

usage

Technical optics term. Common subtypes: 球面像差 (spherical), 色像差 (chromatic), 慧形像差 (coma). Note that here 差 is read chā (difference), not chà (poor).

Stroke Order

像 xiàng

差 chà