Results for: Fresnel_lens

What type of lens is the lens of your eye?

The lens in the human eye is a convex lens, but it is flexible and  when it is acted on by the ciliary muscle around it, the lens can  be "flattened" to change the focus, or (MORE)
In Uncategorized

What do fresnel lights do?

The fresnel lights have fresnel lenses that allow for the light to be softer. The fresnel lights also cast a very soft shadow and capture more of an oblique lighting.
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Is the fresnel biprism experiment better than young's double slit experiment?

yes,because in fresnel biprism the fringe width can be increased so that the dark and bright fringes can be seen clearly by naked eyes..but there is no such problem in fresnel (MORE)

How do you make a Fresnel lens?

It's almost impossible for a person to just make a fresnel lens, it's made in factories, u can FOUND some of them in rear projection tvs
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Describe fresnel biprism?

A fresnel biprism is a triangular right prism with a highly obtuse angle in cross-section. The obtuse angle is near 180 degrees. The typical use of such a prism is to produce (MORE)
In Health

What does the crystalline lens do?

  The crystalline lens is part of the refracting system of the eye and in addition to the cornea helps focus light onto the retina. The lens can also alter shape (accomm (MORE)
In Science

What is Fresnel half-period zone?

Fresnel's assumed that a wavefront started from a source can be divided in to a large no. of strips or zone called the Fresnel's zone of small area. if the path difference be (MORE)

Who invented lens?

In 1888, Adolf Fick was apparently the first to successfully fit contact lenses, which were made from blown glass