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单词 optical length
释义

Definition of optical length in English:

optical length

noun

  • The distance which in a vacuum would contain the same number of wavelengths as the actual path followed by a ray of light, equal to the product of the actual path-length and the refractive index of the medium if the latter is homogeneous.

Origin

Late 19th century.

 
 

Definition of optical length in US English:

optical length

noun

  • The distance which in a vacuum would contain the same number of wavelengths as the actual path followed by a ray of light, equal to the product of the actual path-length and the refractive index of the medium if the latter is homogeneous.

Origin

Late 19th century.

 
 
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更新时间：2025/1/27 13:51:14