Ordinary matter focused light, Claire knew, like a converging lens.

In this case, the lens is called a positive or converging lens.

Link to interactive simulation of light rays through a converging lens.

It is shown that simple converging lenses can act as Fourier analyzers.

A magnifying glass uses a converging lens whose focal length is 15 cm.

The focal length of a converging lens is considered positive, and diverging positive.

An image of this light is formed using a converging lens (also called a schlieren lens).

Converging lenses (positive lenses) are thicker at the centre than at the edges.

A kinoform is a type of converging lens that is able to efficiently focus x-ray radiation.

All cameras use the same basic design: light enters an enclosed box through a converging lens and an image is recorded on a light-sensitive medium.

Hyperopia is compensated for with a Converging lens, often known as a Plus lens.

Such electro-optic devices can then be used for example to form a converging lens having an electrically switchable focal length.

In principle, everything applies to diverging lenses just as well as to converging lenses.

Converging lenses have positive optical power, while diverging lenses have negative power.

Put the real converging lens in the lens holder and examine the image produced by objects a long distance away, such as features outside the classroom.

A spherical mirror of any size can be tested relatively easily using standard optical components such as laser, mirrors, beamsplitters, and converging lenses.

The device is made up of three converging lenses in two planes which are mounted with an angular separation of 120 on an electric rotator.

This type of zone plate pattern is the equivalent of a transmission hologram of a converging lens.

In contrast, an object placed in front of a converging lens or concave mirror at a position beyond the focal length produces a real image.

The insertion of a converging lens in front of the taking lens reduces the focal length of the combination.

They can be observed by introducing a converging lens between the film and observation plane with focus of the lens lying in observation plane.

The distance from this point to the lens is also known as the focal length, though it is negative with respect to the focal length of a converging lens.

A close-up lens is a single or two-element converging lens used for close-up and macro photography, and works in the same way as spectacles used for reading.

Part C-Advanced questions [3 marks] You want to use a magnifying glass (converging lens) with a focal length of 10 cm to form a virtual image of an object.

If the sun is shining the focal length can be measured just as easily as for a converging lens: the lens is held so that its shadow falls on a sheet of paper.