optical

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Optics

ldoce_241_dop·ti·cal /ˈɒptɪkəl $ ˈɑːp-/ adjective HPOrelating to machines or processes which are concerned with light, images, or the way we see things 光学的 microscopes and other optical instruments 显微镜和其他光学仪器 →5 See picture of binoculars 双筒望远镜, opera glasses 观剧镜, magnifying glass 放大镜 ... →4 See picture of 见图 optical —optically /-kli/ adverb

Examples from the Corpus

optical• This, thought Robert, was something of an optical achievement on her part.• Consider a photon which is polarised parallel to the optical axis of P, .• Optical bar-code scanners have revolutionized the postal system.• optical distortions caused by poor quality lenses• They sell optical equipment such as cameras and telescopes.• It also explains why it is virtually certain that Britain's main trunk lines will rely on optical fibre.• But lasers have snags: even with optical fibres, lasers can not reach every part of the body.• For this reason the phase control signals to these upper base drives are often transmitted via a stage of optical isolation.• However, the dimensions of the smallest circuit-parts will soon have shrunk beyond the limit that optical microscopes can resolve.• One projected use is for optical recognition experiments.• Polished surfaces give the best optical resolution, and the double polished thin sections described in Chapter 4 are ideal.optical instruments• The first questions Wien asked were related to the resolving power of optical instruments.• There is, however, one classical restriction which we must take into account, namely the resolving power of optical instruments.• Even optical instruments, such as perspective machines, the cameraobscura and the camera lucida, were used sparingly.