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单词 scotopic
释义

Definition of scotopic in English:

scotopic

adjective skə(ʊ)ˈtɒpɪk
Physiology

  • Relating to or denoting vision in dim light, believed to involve chiefly the rods of the retina.

    〔生理〕暗适应的；暗视的。常与PHOTOPIC 相对

    Often contrasted with photopic
    Example sentencesExamples
    • Visual pigments have also evolved to perform specialized functions, such as color vision and scotopic vision.
    • The photopic curve is for normal vision, and the scotopic curve is for eyes that are adjusted to the dark.
    • Honeybees, forced to feed under dim light levels are colour-blind just as humans are under scotopic conditions
    • The low dark noise of rods allows the scotopic system to reliably detect a flash eliciting less than 10 effectively absorbed photons.
    • Using an extremely low-light projector and other devices, we get demonstrations of night adaptation, blind spots, mesopic and scotopic vision, peripheral vision, autokinesis and flash blindness.

Origin

Early 20th century: from Greek skotos 'darkness' + -opia + -ic.

Definition of scotopic in US English:

scotopic

adjective
Physiology

  • Relating to or denoting vision in dim light, believed to involve chiefly the rods of the retina.

    〔生理〕暗适应的；暗视的。常与PHOTOPIC 相对

    Often contrasted with photopic
    Example sentencesExamples
    • Using an extremely low-light projector and other devices, we get demonstrations of night adaptation, blind spots, mesopic and scotopic vision, peripheral vision, autokinesis and flash blindness.
    • The photopic curve is for normal vision, and the scotopic curve is for eyes that are adjusted to the dark.
    • The low dark noise of rods allows the scotopic system to reliably detect a flash eliciting less than 10 effectively absorbed photons.
    • Visual pigments have also evolved to perform specialized functions, such as color vision and scotopic vision.
    • Honeybees, forced to feed under dim light levels are colour-blind just as humans are under scotopic conditions

Origin

Early 20th century: from Greek skotos ‘darkness’ + -opia + -ic.
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更新时间：2025/3/9 10:12:38