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单词 optical
释义

Definition of optical in English:

optical

adjective ˈɒptɪk(ə)lˈɑptək(ə)l
  • 1Relating to sight, especially in relation to the action of light.

    (尤指与光的物理运动相关)(与)视觉(有关)的

    optical illusions

    视错觉,光幻觉。

    Example sentencesExamples
    • Hooper declared at the outset of his book that optical toys could hone visual perception and, consequently, prime social vigilance.
    • The same optical illusion is in the second act.
    • The new system should help remove the optical trickery that occurs when assistant referees fail to position themselves correctly on the sidelines.
    • Not only did Leonardo study the geometry of perspective but he also studied the optical principles of the eye in his attempts to create reality as seen by the eye.
    • Radio astronomy is a young field relative to optical astronomy.
    • Strobes and pyrotechnics nestle amongst shadow puppetry, while a vast array of other optical and audio effects assist in the delivery of this fast-moving tale.
    Synonyms
    seeing, optic, ocular, eye
    1. 1.1 Constructed to assist sight.
      有助于视力的
      an optical aid

      助视器,眼镜。

      Example sentencesExamples
      • In addition, in bioengineering the low-power demands of this technology are promising for use in hearing aids and optical prosthetics.
      • You may be able to watch Jupiter disappear - an event known as immersion - without optical aid, though binoculars help.
      • Normally, when Christine and I do any serious bird watching, it is with the Core Team and their plethora of optical aids and identification tomes.
      • Concerning the question of optical aids, there is a possible answer well short of the use of lenses, mirrors, or a pinhole camera obscura.
      • The controversy over the use of optical aids by early Renaissance painters is crossdisciplinary and emotionally charged.
      • Counting how many Pleiads you can see without optical aid is a good test of both your vision and observing conditions; most people see 6 or 7.
      • Despite the efforts of some art historians to suggest that Vermeer literally transcribed what he saw with optical aids, such was not the case.
      • This mismatch, he says, militates against the Hockney-Falco claim that the painter relied on optical aids.
      • The optical sight works either by using ambient light or under low light conditions, from a battery or tritium insert.
      • For some, the use of optical aids compromises genius, and art with it.
    2. 1.2 Relating to the science of optics.
      光学的
      Example sentencesExamples
      • For 154 years, Zeiss has been an optical pioneer.
      • Without doubt, uncovering nature's optical secrets has been, and will continue to be, a spectacular journey.
      • You can operate an optical telegraph as used in the Napoleonic wars, crank up second world war field telephones and learn to read Morse and semaphore.
      • Strong cleaning agents like diluting agents or concentrated cleaners should be avoided since they may affect the optical properties of the sunglasses.
      • The list even includes a professor of optical sciences, Charles Falco.
      • Currently, most optical fibers are made of solid glass, with pulses of light traveling through the core.
      • Created with a rear-screen optical printer and mattes cut out of construction paper, A Man Whose Life Was Full of Woe has a rough, ecstatic collage quality.
      • The forward periscope is replaced by a passive optical periscope for night-time manoeuvres.
      • Deception by mirrors has a basis in optical principles, in so far as reflections in mirrors do not correspond wholly to the objects that caused them.
      • An optical lattice is a light grid created by the interference of two or more laser beams.
      • Abbe described the optical process so well that this paper has become the foundation upon which much of our understanding of optical science rests today.
      • Astronomy is one of the oldest and truest champions of optical science.
      • For instance, he shows how pencils can be used to explain optical principles.
  • 2Physics
    Operating in or employing the visible part of the electromagnetic spectrum.

    〔物理〕(使用或工作于)可见光谱区的

    optical telescopes

    光学望远镜。

    Example sentencesExamples
    • In medium- and high-grade metamorphic terrains, these studies can be adequately accomplished with the aid of optical microscopy.
    • An optical light microscope or a scanning electron microscope can be used to see these ‘invisible’ cracks.
    • The paper shows that positrons can see defects better than either optical or electron beam microscopes.
    • Whether the telescope is operating as an optical or an infrared instrument, rarely will there be an astronomer peering through an eyepiece at the Keck's images.
    • Of course, the capabilities of optical and infrared telescopes also continued to improve.
    1. 2.1Electronics (of a device) requiring electromagnetic radiation for its operation.
      〔电子〕(装置)光电的
      integrated optical circuits

      集成光电路。

      Example sentencesExamples
      • Here's a look at how test sequencers can speed up tests on optical devices, saving time and money.
      • But you can easily add another hard drive, drop in a graphics card or add a new optical drive.
      • Unlike its electrical predecessor, an optical switch does not convert the signal to an electrical impulse before directing it.
      • Such a device might one day become the CPU of an optical computer.
      • Available optical devices such as CDs and DVDs record information on the surface of the disc.
noun ˈɒptɪk(ə)l
opticalsIndian
  • A pair of glasses.

    he pushed his opticals on to the bridge of his nose

    他把眼镜推到鼻梁上。

Derivatives

  • optically

  • adverb ˈɒptɪk(ə)liˈɑptək(ə)li
    • To illustrate, let us consider a ray of light passing through a cube of optically denser material.
      Example sentencesExamples
      • The multilayer structures generated in porous silicon provide a simple means of optically encoding micrometer-sized particles.
      • The parabolic reflectors focus their respective wavelengths onto mechanical devices that act like shutters to optically modulate the beams.
      • The leading edge of the incoming media is optically scanned using a blue-violet light to obtain both diffuse and specular reflectance values.
      • But hand recounts of optically scanned ballots will go a long way toward addressing doubts about that technology and about the vendor.

Rhymes

synoptical

Definition of optical in US English:

optical

adjectiveˈɑptək(ə)lˈäptək(ə)l
  • 1Relating to sight, especially in relation to the physical action of light.

    (尤指与光的物理运动相关)(与)视觉(有关)的

    optical illusions

    视错觉,光幻觉。

    Example sentencesExamples
    • Not only did Leonardo study the geometry of perspective but he also studied the optical principles of the eye in his attempts to create reality as seen by the eye.
    • The new system should help remove the optical trickery that occurs when assistant referees fail to position themselves correctly on the sidelines.
    • Radio astronomy is a young field relative to optical astronomy.
    • Hooper declared at the outset of his book that optical toys could hone visual perception and, consequently, prime social vigilance.
    • The same optical illusion is in the second act.
    • Strobes and pyrotechnics nestle amongst shadow puppetry, while a vast array of other optical and audio effects assist in the delivery of this fast-moving tale.
    Synonyms
    seeing, optic, ocular, eye
    1. 1.1 Constructed to assist sight.
      有助于视力的
      Example sentencesExamples
      • Concerning the question of optical aids, there is a possible answer well short of the use of lenses, mirrors, or a pinhole camera obscura.
      • This mismatch, he says, militates against the Hockney-Falco claim that the painter relied on optical aids.
      • The controversy over the use of optical aids by early Renaissance painters is crossdisciplinary and emotionally charged.
      • Normally, when Christine and I do any serious bird watching, it is with the Core Team and their plethora of optical aids and identification tomes.
      • Counting how many Pleiads you can see without optical aid is a good test of both your vision and observing conditions; most people see 6 or 7.
      • You may be able to watch Jupiter disappear - an event known as immersion - without optical aid, though binoculars help.
      • For some, the use of optical aids compromises genius, and art with it.
      • In addition, in bioengineering the low-power demands of this technology are promising for use in hearing aids and optical prosthetics.
      • Despite the efforts of some art historians to suggest that Vermeer literally transcribed what he saw with optical aids, such was not the case.
      • The optical sight works either by using ambient light or under low light conditions, from a battery or tritium insert.
    2. 1.2 Devised on the principles of optics.
      光学的
      Example sentencesExamples
      • Abbe described the optical process so well that this paper has become the foundation upon which much of our understanding of optical science rests today.
      • An optical lattice is a light grid created by the interference of two or more laser beams.
      • The forward periscope is replaced by a passive optical periscope for night-time manoeuvres.
      • Currently, most optical fibers are made of solid glass, with pulses of light traveling through the core.
      • For instance, he shows how pencils can be used to explain optical principles.
      • Deception by mirrors has a basis in optical principles, in so far as reflections in mirrors do not correspond wholly to the objects that caused them.
      • The list even includes a professor of optical sciences, Charles Falco.
      • Created with a rear-screen optical printer and mattes cut out of construction paper, A Man Whose Life Was Full of Woe has a rough, ecstatic collage quality.
      • For 154 years, Zeiss has been an optical pioneer.
      • Astronomy is one of the oldest and truest champions of optical science.
      • Strong cleaning agents like diluting agents or concentrated cleaners should be avoided since they may affect the optical properties of the sunglasses.
      • You can operate an optical telegraph as used in the Napoleonic wars, crank up second world war field telephones and learn to read Morse and semaphore.
      • Without doubt, uncovering nature's optical secrets has been, and will continue to be, a spectacular journey.
  • 2Physics
    Operating in or employing the visible part of the electromagnetic spectrum.

    〔物理〕(使用或工作于)可见光谱区的

    optical telescopes

    光学望远镜。

    Example sentencesExamples
    • An optical light microscope or a scanning electron microscope can be used to see these ‘invisible’ cracks.
    • Whether the telescope is operating as an optical or an infrared instrument, rarely will there be an astronomer peering through an eyepiece at the Keck's images.
    • In medium- and high-grade metamorphic terrains, these studies can be adequately accomplished with the aid of optical microscopy.
    • The paper shows that positrons can see defects better than either optical or electron beam microscopes.
    • Of course, the capabilities of optical and infrared telescopes also continued to improve.
    1. 2.1Electronics (of a device) requiring electromagnetic radiation for its operation.
      〔电子〕(装置)光电的
      integrated optical circuits

      集成光电路。

      Example sentencesExamples
      • But you can easily add another hard drive, drop in a graphics card or add a new optical drive.
      • Such a device might one day become the CPU of an optical computer.
      • Available optical devices such as CDs and DVDs record information on the surface of the disc.
      • Unlike its electrical predecessor, an optical switch does not convert the signal to an electrical impulse before directing it.
      • Here's a look at how test sequencers can speed up tests on optical devices, saving time and money.
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