optical

• adj.光学；眼球、視覚

opticから、目の、眼球の、派生optic、光学的な。

optical

optical: [16] Greek optós meant ‘visible’ (it was presumably related to ophthalmós ‘eye’, source of English ophthalmic [17], and belonged to the general Indo-European family of ‘eye’/‘see’- words – including English eye itself – that goes back to the base *oqw-). From it was derived optikós, which has given English optic [16] and optical. Optician [17] originated as a French coinage.
=> ophthalmic

optical (adj.)

1560s, from optic + -al (1). Of abstract art, from 1964. Related: Optically.

1. Sloping walls on the bulk of the building create an optical illusion.

ビル本体の斜壁は錯視を与える。

2.The camera combines rugged reliability with unequaled optical performance and speed.

堅牢で耐久性があり、優れた光学性能とシャッタースピードを備えたカメラです。

3.These optical fibres may be used for new sorts of telephony.

これらの光ケーブルは、新しい電話通信システムに使用できます。

4. optical instruments such as microscopes and telescopes

顕微鏡や望遠鏡などの光学機器

5.They concentrated on better definition of the optical image.

彼らはこの光学映像の鮮明度を高めることに力を入れている。