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Dioptrics

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dioptrics [dī′äp·triks]
(optics)
The branch of optics that treats of the refraction of light, especially by the transparent medium of the eye, and by lenses.

Dioptrics 

the study of the refraction of light when it passes through separate refracting surfaces and their systems. The term “dioptrics” is often used in connection with the eye: the dioptrics of the eye is the study of the properties of the eye as an optical instrument.



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Secondly, I am working on the history of dioptrics, the geometry of the projections, as well as on the theory of conics.
 
 
 
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