প্রতিসরণক্ষমতার একক; noun ডিত্তপ্তর;
dioptre definition
A unit of measurement for the refracting power of a lens, equal to the reciprocal of the focal length in metres.
dioptre শব্দটির synonyms বা প্রতিশব্দ
dioptre Example in a sentence
A dioptre is a unit of optical power, equal to the reciprocal of the focal length in meters.
The dioptre is a measure of the bending power of a lens or curved mirror, expressed in units of inverse meters.
A convex lens or mirror has a positive dioptric power, while a concave lens or mirror has a negative dioptric power.
The dioptric power of a lens is determined by its focal length, which is the distance between the lens and the point where it focuses parallel rays of light.
A lens with a dioptric power of +1 dioptre has a focal length of 1 meter.
A lens with a dioptric power of -1 dioptre has a focal length of -1 meter.
The dioptric power of a system of lenses can be calculated by adding the dioptric powers of the individual lenses.
The dioptre is a useful unit for specifying the refractive power of eyeglasses and contact lenses.
The dioptric power of the eye is determined by the shape of the cornea and the lens.
The dioptric power of the eye changes with age, as the lens becomes less flexible.