Hey guys,
As some of you know I'm starting dental school and loupe vendors are making their rounds to sell us their wares, but one made a weird claim.
First off I don't know how loupes are configured but I'll tell you their purpose. We have a working distance from my eyeballs to the area I'm working with my hands. Loupes need to resolve an image based on this at a specific magnification say 2.5x
What one vendor said seemed off. She kept referencing the diopter to influence the magnification however if these loupes are using an objective lens and a magnification lens (I doubt it's one piece of glass BECAUSE it needs to be made to our own working distance).
So my question really is how to make the maths for these optics. If my working distance is about .7 meters from my own eyeballs which are about 1.3 cm from the end of my lens and I need the image resolved at 2.5 magnification, what are the dimensions of the lens(es)?
I may be missing some things so let me know.
As some of you know I'm starting dental school and loupe vendors are making their rounds to sell us their wares, but one made a weird claim.
First off I don't know how loupes are configured but I'll tell you their purpose. We have a working distance from my eyeballs to the area I'm working with my hands. Loupes need to resolve an image based on this at a specific magnification say 2.5x
What one vendor said seemed off. She kept referencing the diopter to influence the magnification however if these loupes are using an objective lens and a magnification lens (I doubt it's one piece of glass BECAUSE it needs to be made to our own working distance).
So my question really is how to make the maths for these optics. If my working distance is about .7 meters from my own eyeballs which are about 1.3 cm from the end of my lens and I need the image resolved at 2.5 magnification, what are the dimensions of the lens(es)?
I may be missing some things so let me know.
via JREF Forum http://ift.tt/1rVBcoZ
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