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单词 neutral density filter
释义

Definition of neutral density filter in English:

neutral density filter

noun
  • A photographic or optical filter that absorbs light of all wavelengths to the same extent, causing overall dimming but no change in colour.

    中性滤光片

    Example sentencesExamples
    • We have also qualitatively tested the effect of reducing the incident light intensity by use of neutral density filters.
    • An action spectrum for light-induced death was carried out using excitation filters and neutral density filters to vary the excitation wavelength and keep peak illumination intensity constant.
    • Simulations of senile miosis using a pupil-constricting drug and the age-related increase in lenticular light absorption using a neutral density filter in young observers could not account for the results.
    • Another use for this filter on sunny days is that it can be used as a neutral density filter in order to give you longer shutter speed times.
    • Illumination was provided by a 150 W quartz halogen slide projector lamp attenuated by neutral density filters.

Definition of neutral density filter in US English:

neutral density filter

noun
  • A photographic or optical filter that absorbs light of all wavelengths to the same extent, causing overall dimming but no change in color.

    中性滤光片

    Example sentencesExamples
    • Another use for this filter on sunny days is that it can be used as a neutral density filter in order to give you longer shutter speed times.
    • We have also qualitatively tested the effect of reducing the incident light intensity by use of neutral density filters.
    • Simulations of senile miosis using a pupil-constricting drug and the age-related increase in lenticular light absorption using a neutral density filter in young observers could not account for the results.
    • Illumination was provided by a 150 W quartz halogen slide projector lamp attenuated by neutral density filters.
    • An action spectrum for light-induced death was carried out using excitation filters and neutral density filters to vary the excitation wavelength and keep peak illumination intensity constant.
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更新时间:2025/8/4 15:58:10