concave lens वाक्य
उदाहरण वाक्य
मोबाइल
- Looking at my face in the mirror, I was always aware of their presence, the way my eyes were hidden behind them, the way the concave lenses warped my face.
- This eyepiece is one of the more expensive to manufacture because of the quality of glass, and the need for well matched convex and concave lenses to prevent internal reflections.
- The STF lens features an optical apodization filter in form of a neutral-gray tinted concave lens element near the lens'circles of confusion in such a way as to become truly Gaussian.
- The concave lenses of some of these iron ore mirrors are able to project " camera lucida " images onto a flat surface and can also be used to light fires.
- The appearance is similar to a single-arch dam but with a distinct vertical curvature to it as well lending it the vague appearance of a concave lens as viewed from downstream.
- The last step, regarded as most important by Brewster, was to place the reflecting panes in a draw tube with a concave lens to distinctly introduce surrounding objects into the reflected pattern.
- Lenses to correct this common condition are thinner in the centre than on the edges to help redirect light rays to the retina, and are called " minus " or concave lenses.
- For a double concave lens where the rays are diverged, the principal focal length is the distance at which the back-projected rays would come together and it is given a negative sign.
- For his optics work, extremely limited equipment sufficed : a few panes of glass, convex and concave lenses, mirrors, prisms, paper and cardboard, pigments, candles and the means to measure distances and angles.
- But, when I use that term, the light that has been reflected off of an object through a concave lens can appear on say a piece of tin foil or a piece of paper.
- A film would be framed and recorded as widescreen, but the picture would be " squashed together " using a specially crafted concave lens to fit into non-widescreen 1.37 : 1 aspect ratio film.
- He also described an improved telescope now known as the " astronomical " or " Keplerian telescope " in which two convex lenses can produce higher magnification than Galileo's combination of convex and concave lenses.
- This use of light may support speculation among art historians that Vermeer used a mechanical optical device, such as a double concave lens mounted in a camera obscura, to help him achieve realistic light patterns in his paintings.
- :If you just mean that the light rays exiting a concave lens can illuminate a piece of paper, that's true, but that's not the same as forming an image .-- talk ) 02 : 27, 20 August 2011 ( UTC)
- Zucchi tried looking into the mirror with a hand held concave lens but did not get a satisfactory image, possibly due to the poor quality of the mirror, the angle it was tilted at, or the fact that his head partially obstructed the image.
- For a thin lens in air, the focal length is the distance from the center of the concave lens ), the focal length is negative, and is the distance to the point from which a collimated beam appears to be diverging after passing through the lens.
- Metius'brother, Jacob Metius, worked as an instrument-maker and a specialist in grinding States General discussed his patent application for an optical telescope of his own invention described as a device for " seeing faraway things as though nearby ", consisting of a convex and concave lens in a tube, and the combination magnified three or four times.
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