Background for dioptres

dioptres

/daɪˈɒptərz/ /daɪˈɑːptərz/

Illustration dioptres - Image 1

Illustration dioptres - Image 2

noun

A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.

Examples :

""The optometrist prescribed new glasses with -2.5 dioptres to correct my daughter's nearsightedness." "

medicine physics science technical unit device

Illustration dioptres - Image 1

noun

The dioptre adjustment mechanism of a pair of binoculars.

Examples :

"The dioptres adjustment on my new binoculars allows me to focus the view clearly. "

device technology

Illustration dioptres - Image 1

noun

Any lens system, such as a telescope.

Examples :

"The optometrist used a series of dioptres to determine the correct lens prescription for my glasses. "

technology physics device

Illustration dioptres - Image 1

noun

A theodolite or similar surveyor’s angle measuring device.

Examples :

"The surveyor used the dioptres to accurately measure the angle of the slope for the new road. "

technology device technical

Illustration dioptres - Image 1

noun

Examples :

"The surveyor used the dioptres on the alidade to precisely measure the angles in the field. "

technology device

Illustration dioptres - Image 1

noun

A surgical speculum.

Examples :

"During the eye surgery, the doctor carefully inserted the dioptres to keep the eyelids open and allow for a clear view. "

medicine device

Illustration dioptres - Image 1

noun

An instrument for drawing the skull by projections.

Examples :

"Because modern technology offers faster alternatives, the professor explained that using dioptres to create accurate skull projections is now a largely obsolete technique, mainly studied for its historical significance in anatomical drawing. "

technical device