Sentences with phrase «lens focused light»

A lens focused light emitted from the atom into a moving image (black arrow).

Located just behind the pupil, the lens focuses light rays on the retina which can alter its shape and allow the eye to focus on objects at various distances.

Not exact matches

The lenses support the eye's effort in focusing at ultra - near distances that are typical of handheld devices by filtering out «harmful blue - violet light emitted by digital screens.»

Telescopes that rely on glass lenses, such as Galileo's designs, focus the light of various colors differently, creating a blurred image.

It consists of muscles that deform a stretchable lens to change the focal length, the distance between the lens and the point at which rays of light are brought to a focus.

The shape - changing lens could potentially offer the same focusing capability as multiple moving lenses in a single stationary lens, which would make for smaller and lighter cameras and microscopes.

That's why we made telescopes, which use lenses or mirrors to gather and focus light, revealing the details of faraway planets, stars and galaxies.

Instead of making a single curved lens to focus light onto a flat surface, they built a camera packed with tiny lenses, each connected to an individual photodetector.

«These cyanobacteria use the entire cell body as a lens to focus an image of the light source at the cell membrane, as in the retina of an animal eye,» says University of London microbiologist Conrad Mullineaux, who helped to make the discovery.

Unlike the eyes of all other back - boned animals, which use a lens to focus light, this one uses mirrors.

Its discoverers proposed that a galaxy cluster acted as a gravitational lens, warping space - time and, in effect, focusing the light towards Earth.

Spherical lenses, like the squids», usually can't focus the incoming light to one point as it passes through the curved surface, which causes an unclear image.

Regular lenses focus and aim visible, infrared, and microwave light, making them useful in a variety of everyday devices such as cameras, cell phones, and eyeglasses.

«We wanted to design a single planar lens with a high numerical aperture, meaning it can focus light into a spot smaller than the wavelength,» said Mohammadreza Khorasaninejad, a postdoctoral fellow in the Capasso lab and first author of the paper.

That's a downside because multiple lenses and complex controls are often needed to guide and focus light with precision.

Eyes and cameras both have lenses that adjust the path of the incoming light to bring an image into sharper focus.

The images then showed that the graphene plasmons focus away from the antenna, similar to the light beam that is concentrated with a lens or concave mirror.

The plastic lenses of your glasses bend light to focus it, but a new high - tech material bends visible light in the «wrong» direction.

Several existing spectacle systems commonly used in virtual reality systems use a liquid crystal screen or mosaic of light - emitting diodes to form a television image which a lens and mirror focuses on the wearer's eye.

In a healthy eye, light entering the pupil is focused by the lens and then passes through the vitreous humour — the jelly like central region — to the retina at the back of the eyeball.

The scallop uses a mirror to focus light instead of a lens, to circumvent this problem,» he said.

To get beyond that resolution, researchers are investigating plasmonic lenses, illustrated here, that use excited electrons to focus light into even shorter wavelengths; theoretically, this technique could be used to etch circuit features as small as 5 to 10 nanometers.

Now a team of researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) has developed the first single lens that can focus the entire visible spectrum of light — including white light — in the same spot and in high resolution.

Metalenses — flat surfaces that use nanostructures to focus light — promise to revolutionize optics by replacing the bulky, curved lenses currently used in optical devices with a simple, flat surface.

In ordinary vision, the lens focuses incoming light in such a way that it flips an image upside down and backward.

Most animals use lenses to focus light onto their retina, a light - sensitive layer of tissue coating the inner portion of the eye.

To do this, cameras typically will use a stack of multiple curved lenses in order to focus all of the colors of light to a single point.

In order to capture a photographic image in a camera or for your eyes to focus on an image through eyeglasses, the different colors of light must pass through the lenses and converge to a point on the camera sensor or on the eye's retina.

The astronomers spotted the solar system due to a phenomenon called gravitational microlensing — when the gravity of a star focuses the light from a more distant star and magnifies it like a lens.

That means massive objects in space can act as lenses, focusing the light from objects even farther from Earth.

This completely flat, ultrathin lens can focus different wavelengths of light at the same point, achieving instant color correction in one extremely thin, miniaturized device.

Just as we use lenses to focus and reshape visible light, magnets are used to focus and reshape electron beams.

There is «elongation of the eye» which results in the light being focused in front of the retina, causing blurred vision that has to be corrected by glasses, contact lenses or laser eye surgery.

If you've ever used a magnifying glass to start a fire, you know that sending light through a lens can focus it into a point.

The researcher's prototype device, which can be attached to a window, comprises three layers: a lens array at the rear focuses light onto a transparency film on which a photograph is printed; the light passes through and is projected onto a «diffuser» in front, where the image is revealed.

Rosenstiel prescribed a hard, gas - permeable lens which created a new spherical refractive surface on the front of the eye which allowed light rays to focus accurately on the retina.

You may be able to safely look at the monitor on the back of your digital camera, but your camera lens is focusing the sun's light on your sensitive camera optics.

At present, lenses and mirrors can not focus light into a beam much smaller than the light's wavelength — 500 nanometres for blue - green lasers.

For the first time, scientists working at the National Institute of Standards and Technology (NIST) have demonstrated a new type of lens that bends and focuses ultraviolet (UV) light in such an unusual way that it can create ghostly, 3D images of objects that float in free space.

The larvae have six pairs of eyes, two of which Buschbeck has confirmed have bifocal lenses — which focus light in two slightly separate planes.

To overcome these challenges, the researchers used an electrically tunable lens to build an OCT instrument that could focus light in a way that enabled whole - eye imaging.

The probe's reduced size comes from its use of gradient index, or GRIN, lenses to focus the laser light.

«It's not a glass lens like you'd find in a camera,» Fischer said, «but we call the technique «electron lensing» because, like a lens that focuses light, the electron beam changes the trajectory of the protons flying through it.»

Compared to traditional spherical lenses that use complicated shaped surfaces to focus light, GRIN lenses can be made very small because they focus light through continuous refractive index changes within the lens material.

In 2010, the researchers showed that such a lens could focus light into a spot one - tenth the size of that produced by an ideal transparent lens of the same size, making the focus 10 times as sharp.

The foreground star has basically acted as a magnifying lens, focusing the light from the background star for astronomers on Earth to observe.

Two - photon lithography typically requires a thin glass slide, a lens and an immersion oil to help the laser light focus to a fine point where curing and printing occurs.

The dominant lens is due to the massive galaxy cluster, which focuses the supernova light along at least three separate paths.

The lens focuses an incident light to a spot smaller than the wavelength this tight focusing enables subwavelength resolution imaging.

Lenses are used in microscopes and cameras to focus light, thus allowing a researcher to see small things or a photographer to capture image of things that are far away.