鏡きょう面めん

noun

mirror surface; lens surface

Refers to the reflective surface of a mirror or the polished surface of a lens. Often used in technical descriptions or when emphasizing a flawless, reflective finish.

• 鏡きょう面めんのような湖みずうみに山やまが映うつっている。

  The mountains are reflected in the mirror-like surface of the lake.

• このレンズの鏡きょう面めんは傷きずつきやすいので注ちゅう意いが必ひつ要ようだ。

  The lens surface of this lens is easily scratched, so care is needed.