Dioptrimeter

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Dioptrimeter

an instrument for measuring the refractive power of an optical glass (glass in spectacles) expressed in diopters (D) and for determining the positions of the principal meridians of an astigmatic lens in spectacles. It consists of a collimator, an optical tube, a reading microscope, a mechanism for holding the lens being measured, and a mechanism for measuring the diameter of, centering, and marking the lens. The dioptrimeter makes it possible to determine the power of an optical glass with an accuracy of ±0.12 D.

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No references found			Dionysius the Areopagite Dionysius the Areopagite, Saint Dionysius the Elder Dionysius the Younger Dionysius Thrax Dionysus Dionyza Diop, Birago Diop, Birago Ismael Diop, David diophantine analysis Diophantine Approximations Diophantine equation Diophantine Equations Diophantos Diophantus Diophantus of Alexandria Diopsidae Diopside Dioptase Diopter dioptometer dioptre dioptric Dioptrics Dioptrimeter Dior Dior, Christian Diorama diorchism Diordiev, Evgenii Diordiev, Evgenii Iakovlevich Diori, Hamani Diorite Dioscorea Dioscoreaceae Dioscorides, Pedanius Dioscuri Dioscurias Diospyros Diotima Diouf, Abdou Diourbel Dioxane dioxide dioxin dioxolane dioxopurine dioxygen dioxygenase dip			Dioptre Dioptre Dioptre Dioptre Cylinder Dioptres Dioptres Dioptres dioptric dioptric dioptric dioptric aberration dioptric aberration dioptric aberration dioptric aberration Dioptric curve dioptric media dioptric media dioptric media dioptric media dioptric medium dioptric medium dioptric medium dioptric medium Dioptric power dioptrical dioptrical dioptrical dioptrics dioptrics dioptrics Dioptrimeter Dioptry Dioptry Dioptry Dior Dior Dior Dior Monsieur Dior, Christian Dior, Christian diorama diorama diorama Dioramas Dioramas Dioramas dioramic dioramic dioramic Diorchis nyrocae diorchism Diordiev, Evgenii Diordiev, Evgenii Iakovlevich Diorea Diorea Diorea Diores Diores Diori Hamani Diori, Hamani Diorism

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