Noun:

ডিত্তপ্তর,

dioptric's Usage Examples:

Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other.

The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon.

In 1910 most of the Northern Lighthouse Board's lights were changed to dioptric or Fresnel lenses but Lismore and Fidra, in the Firth of Forth, were left.

Placed within a revolving third-order dioptric optic, the light had an intensity of 4,200 candela and a range of 19 nautical.

range of the light house was extended to 22 nautical miles when 3rd order dioptric flashing lights were installed.

In 1860, the oil-powered light was upgraded to a dioptric light and the Mumbles Battery, a fort that surrounds the tower, was built.

high tide, and flashes 4 times every 15 seconds; the optic ('a 1st Order dioptric apparatus, eight panels in two groups of four, revolving on a motor driven.

describes the light as a square wooden lightroom, carrying a fixed sixth order dioptric apparatus.

Diopter may also refer to: Historically, a dioptric lens Any lens system, such as a telescope A diopter sight A close-up lens.

In 1850 a new stone lighthouse was built and equipped with a dioptric Fresnel lighting device in 1875.

to flash red once every fifteen seconds; thereafter it was listed as a dioptric light (i.

1st order bivalve dioptric Fresnel lens.

The dioptric lens was of the 6th order and the range was 8 nautical miles.

Later a dioptric apparatus was installed in the tower and came into operation on 29 September.

In 1892 the original light was built as a fixed white, 6th order dioptric station and had a 6-mile-range (9.

that uses a lens as its objective to form an image (also referred to a dioptric telescope).

(catoptrics) and lens-systems (dioptrics), although in the late twentieth century, optical fiber was introduced.

Catoptrics and dioptrics have a focal point, while.

Incandescent oil dioptric light with ‘Hood’ burner was used in 1931 with a 3rd Order 500 mm optic.