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to increase clarity and zooming capabilities
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Why is chromatic aberration more evident for some positions of the aperture?
The further the aperture is from the optical axis of the lens, the more to the side of the lens the incident light falls. The further the light falls from the optical axis, the greater the effects of chromatic aberration. This is because different wavelengths of light have different refractive indices (dispersion). Because of Snell's Law, n1sintheta1=n2sintheta2, the greater the angle of incidence, the more pronounced the effects of the difference in refractive indices. Spherical aberration further enhances the chromatic dispersion.
Where can one purchase optical art?
Optical art is often referred to as Op Art, and can be purchased at a variety of online sites. Some of the sites that are currently offering Optical art for sale are the "All Posters" site, Amazon as well as on "Fine Art America".
Where do you find the scanning power objective on a microscope?
The scanning power objective relates to the objective lens. Most microscopes provide two or more objective lenses to give a choice of magnification power. Some also include an oil immersion lens for even greater magnification.
What shape is concave lens?
A spoon that you have put some food into is a concave shape. It is a cavity. A concave lens is such that it is thicker at the edges than in the middle. Convex is the bottom of the spoon. A convex lens is thicker in the centre than around the edges.
Where are lens are used?
Lens are widely used. The most common example of the usage of lens is the spectacles. The spectacles contain either convex or concave lenses. In some cases it is plane. Convex Lens are widely used in Magnifying glasses, Microscope and Telescopes. Convex lens are used in torch lights. It helps in concentrating the light rays emitted from the bulb to a point, hence increasing the intensity of light at that point.
What is an easy definition of the optical axis?
An optical axis is a line along which there is some degree of rotational symmetry in an optical system such as a camera lens or microscope..
Why is chromatic aberration more evident for some positions of the aperture?
The further the aperture is from the optical axis of the lens, the more to the side of the lens the incident light falls. The further the light falls from the optical axis, the greater the effects of chromatic aberration. This is because different wavelengths of light have different refractive indices (dispersion). Because of Snell's Law, n1sintheta1=n2sintheta2, the greater the angle of incidence, the more pronounced the effects of the difference in refractive indices. Spherical aberration further enhances the chromatic dispersion.
What is optical hardware?
Optical networking hardware entails the various components used in optical technologies. Some of the common hardware include routers, optical fiber, electronic devices and so much more.
What is optical networking hardware?
Optical networking hardware entails the various components used in optical technologies. Some of the common hardware include routers, optical fiber, electronic devices and so much more.
What replaced glass in lense design?
Plastic materials, such as polycarbonate and CR-39, have replaced glass in some lens designs due to being lighter, more impact-resistant, and more affordable. These materials can still provide excellent optical quality for eyeglass lenses.
What are ocular lenses?
They are curved transparent materials that make light rays come together or spread out.or a lens is a transparent material which has one or more surfaces curved for the purpose of deviating light raysA lens is an optical element that can transmit and refract light, by converging or diverging the beam. Simple lens is a single optical element. Compound lens is an array of simple lenses having a common axis.
What is an optical view finder?
An optical viewfinder is a separate aiming device for a camera, that is by definition fitted with its own lens or lenses, and which shows the photographer roughly the same field of view as the taking (or camera) lens. Some optical finders on zoom cameras will zoom with the taking lens. Most optical finders show a smaller percentage of what the taking lens "sees" so that there is a margin for error. Once, almost all cameras that were not reflex (that is, the finder image is projected from the camera lens) were fitted with optical viewfinders. Many small digital cameras today have no optical viewfinder, using only the view screen instead, but while the view screen usually shows a nearly 100% accurate view of the scene, the screen may be partly or wholly obscured in very bright light. An optical viewfinder can be handy in such situations. If you're using a camera with only a view screen with the sun coming over your shoulder you may have found yourself wishing that you had an optical viewfinder. There are other types of viewfinders, not all of them optical. Many older "press" type cameras such as the Graphics had a wire frame finder, often called the "press" finder, which just gave the photographer a rough aiming point, but which was very useful when the picture was fleeting. The big 4x5" press cameras had the advantage that a usable image could easily be cropped out the ample negative, so very accurate viewfinding was not always necessary.
What are some words that start with opt?
Optical, optometrist, optometry
What are some uses for optical lasers?
Optical lasers, also known as laser optics, are beams of light that come in many different strengths and possible uses. Modern computer mice use lasers to detect movement. Video game systems and DVD players use lasers to access discs. More powerful lasers are used for surgery and in laboratories as tools for experiments.
Does a substance having high optical density have to have a high physical density?
It's not necessary. If a compound has high optical density, it means that it absorbs more light at the given wavelength than some reference compound. There is no simple relation between density of matter and optical density. Even more I am pretty sure you can find a lot of compounds with lower densities (of matter) but having high optical density.
What is some information on optical illusions?
optical illusions are an object causing false impressions
What are some examples of packaging systems?
Some examples of packaging systems include Shrink Packaging, Automatic Palletizing and Automatic Case Erectors. You can get more information about these packaging systems at the Packaging Systems website.
