There is no dioptricapparatus in Nautilus, and in place of refracting lens and cornea we have actually here an arrangement for forming an image on the principle of "the pin-hole camera.
In the two former countries the vast majority of the lighthouses are upon the dioptric principle, the whole light of the lamps being concentrated in occasional flashes, by means of a powerful system of lenses, forming a complete cage of glass.
The white fenestræ, which in the Cockroach lie internal to the antennary sockets, may represent two simple eyes which have lost their dioptric apparatus.
Each facet of the compound eye is the outermost element of a series of parts, some dioptric and some sensory, which forms one of a mass of radiating rods or fibres.
Even if the dioptric arrangement permitted the formation of images, there is no screen to receive them.
It is true that the dioptric apparatus was perfected independently by Fresnel, who had also the satisfaction of being the first to put it into operation.
The tower was built, I believe, by Queen Adelaide, and it contains a fine dioptric apparatus of the first order, constructed by Messrs.
The dioptric system, in which the rays of light are transmitted through glass, has been introduced into the floating lights of India by the Messrs.
Since then, several more dioptric lights have been sent to the same region, and also to Japan in 1869, and all reports agree in describing these lights as being eminently successful.
Further, not only the retina but also the dioptric apparatus of the vertebrate eye point to its origin from a type that combined the peculiarities of the arachnids and the crustaceans.
A dioptricapparatus for the purpose of forming an image on the sensory cells.
The more complicated eyes are modifications of this type for the purpose of making both the retina and the dioptric apparatus more perfect.
In order to complete the dioptricapparatus a lens is necessary.
Besides the retina, all eyes possess a dioptric apparatus.
It was to introduce the dioptric system that Perry now earnestly labored.
After a struggle, the dioptric conquered the katoptric, and lenses rule the coast.
This may be made of ground glass, opal glass, or be a dioptric globe such as the holophane.
The luminous intensity of a beam from a dioptric apparatus is, ceteris paribus, proportional to the intrinsic brightness of the luminous source of flame, and not of the total luminous intensity.
In 1909 an unattended gas illuminated light-vessel provided with a dioptric flashing apparatus was placed at the Lune Deep in Morecambe Bay.
As has been explained above, the effect of a dioptric apparatus is to condense the light rays, and the measure of this condensation is the ratio between the vertical divergence and the vertical angle of the optic in the case of fixed lights.
The first dioptric light erected by the Trinity House was that formerly at Start Point in Devonshire, constructed in 1836.
The first adaptation of dioptric lenses to lighthouses is probably due to T.
This characteristic is usually exhibited by fixeddioptric apparatus fitted with some form of occulting mechanism.
In fixed dioptric lights there is, of course, no divergence in the horizontal plane.
The light is occulting, and is shown from a dioptric lens fitted at the head of a braced iron lattice tower 30 ft.
Augustin Fresnel divided the dioptric lenses, designed by him, into "orders" or sizes depending on their local distance.
In a lighthouse on the dioptric system, the lantern is constructed with eight sides, which form an octagonal prism around the lamp in the centre.
The Trinity-House of London followed next in adopting the improved system, and a revolvingdioptric light of the first order was erected at the Star Point in Devonshire.
They investigated the subject with their usual scientific skill, and the result was the invention and adoption of the system of lenses instead of reflectors, known as the Dioptric system.
It consists of alternate and opposite sectors of dioptric spherical mirror, MM, and of Fresnel's fixed light apparatus, AA.
This objection is, however, obviated to a large extent (especially where the dioptric spherical mirror is used) by such an arrangement as is shown in Fig.
She looked longingly at the great lamp and the twinkling diamonds of the dioptric lens.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "dioptric" in a variety of sentences. We hope that you will now be able to make sentences using this word.
