Light Transfer (Light Transmittance)

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Discussion Overview

The discussion revolves around the calculation of light transmittance and absorption through glass, exploring the applicability of the Lambert-Beer law in this context.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant seeks a formulation for calculating light transfer through glass and light absorption.
  • Another participant suggests that the Lambert-Beer law may be relevant to the inquiry.
  • A different participant questions the applicability of the Lambert-Beer law, noting that it is stated to be valid only for diluted solutions, which they argue does not include glass.
  • In response, a participant asserts that the Lambert-Beer law is indeed valid for other materials, citing its use in gamma ray absorption and X-ray absorption spectroscopy, as well as in calculating light attenuation in sunglasses.

Areas of Agreement / Disagreement

Participants express differing views on the applicability of the Lambert-Beer law to glass, with some supporting its use and others questioning it based on the law's stated limitations.

Contextual Notes

There is an unresolved discussion regarding the conditions under which the Lambert-Beer law applies, particularly in relation to the properties of glass compared to diluted solutions.

hannalee
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Hi,
Can anyone please direct me to the formulation for calculating the amount of light transferred through a glass?
Or the amount of light absorbed.

Thank you
 
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May be you are searching for Lambert-Beer law.
 
I had a look at the Lambert-Beer Law, but the text states that: The Lambert-Beer Law is valid only for diluted solutions.
I don't think glass lies in this category.
Any idea?
 
No, Lambert-Beer (LM) law is valid.
For example: one can apply to absorption of gamma rays in lead (for shielding calculations)
And in X-ray absorption spectroscopy LM is often used.
Also for finding attenuation of light in sun glasses, LM is used.
Hope this helps.
 

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