Focus Axial Ray: Can It Pass Through Glass?

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    Axial Focus Ray
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Focusing an axial ray through a double plano piece of glass in air is questioned, with the consensus leaning towards it being impossible. The glass does not reflect the ray towards the optical axis necessary for proper focusing. The discussion also raises the need to understand the requirements for refraction in this context. Clarification on how light interacts with glass is essential for determining focusability. Overall, the feasibility of focusing an axial ray through such a medium remains doubtful.
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is it possible to focus an axial ray through a double plano piece of glass placed in air?

i don't think so because the glass will not reflect the ray towards the optical axis for the ray to focus in. is this thinking correct?
 
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UrbanXrisis said:
is it possible to focus an axial ray through a double plano piece of glass placed in air?

i don't think so because the glass will not reflect the ray towards the optical axis for the ray to focus in. is this thinking correct?

What is the requirement for refraction?
 

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