Words nearby polarized light
MORE ABOUT POLARIZED LIGHT
What is polarized light?
Polarized light is light that has its vibration limited to one plane.
Light is radiation in the form of an electromagnetic wave. A wave of light will move in a particular direction. As it moves, it also vibrates in different directions. These vibrations oscillate, that is, they repeatedly move in one direction and then in the reverse direction, as a pendulum does. For this reason, we say that the vibration occurs on a plane. Because light exists in three-dimensional space, these vibrations can occur on diagonal planes that go in every direction, as well as on horizontal or vertical planes.
In polarized light, the light wave vibrates on a single plane. For example, it might vibrate on a horizontal plane and not a vertical or diagonal one. A laser is an example of polarized light. Light that vibrates randomly or in every direction is called unpolarized light. Light from the sun, for example, is unpolarized light.
The process of turning unpolarized light into polarized light is called polarization.
Why is polarized light important?
The term polarized light has been used at least since the 1810s. Danish scientist Erasmus Bartholin is often credited with the discovery of light polarization. Bartholin noticed that double refraction could cause light to be split into numerous beams of polarized light. Later scientists built on Bartholin’s work, such as French scientist Étienne-Louis Malus, who discovered that reflection could also produce the polarized light that Bartholin observed.
Polarized light has a variety of uses. For example, sunglasses use polarized lenses with chemicals applied to them that act as light filters. The sunglasses only allow one plane of vibration to hit your eyeball. This causes the unpolarized sunlight to become polarized light, which makes the light appear much dimmer and less intense.
3D movies also use polarized light. When you watch a 3D movie, you are actually watching two different movies simultaneously projected from two different cameras. 3D glasses have two different light filters (one on each lens) that separately filter the light from each movie into polarized light. Each of your eyeballs is seeing a different vibration of polarized light, which causes the illusion of depth.
Did you know ... ?
The trademark Polaroid refers to a brand of material that produces polarized light. If you ever see this trademark mentioned in reference to a certain item (such as a camera), you can be pretty confident that the item makes use of polarized light.
What are real-life examples of polarized light?
Polarized light is used in a number of different technologies. In particular, cameras and lenses use or manipulate polarized light to make much clearer images.
A really cool white pine fragment from a #moose fecal sample from Isle Royale National Park in Winter of 2020. The bright color comes from polarized light, which provides much better contrast than a bright-field microscope. pic.twitter.com/U3XmY3Pw7D
— Grace L Parikh (@ParikhGrace) January 27, 2021
Mantis shrimps have the most advanced eyesight in the animal kingdom with the ability to detect infrared, ultraviolet & even polarized light
— Nat Geo WILD (@natgeowild) January 4, 2014
What other words are related to polarized light?
True or False?
In polarized light, the wave of light is vibrating in random directions.
How to use polarized light in a sentence
You just travel light with carry-on luggage, go to cities that you love, and get to hang out with all your friends.Coffee Talk with Fred Armisen: On ‘Portlandia,’ Meeting Obama, and Taylor Swift’s Greatness|Marlow Stern|January 7, 2015|DAILY BEAST
And how we want to live our lives in light of those differences.
Gillingham tells Mary that he wants to make their lives simpler, but it sounds a little like the dying of the light.
As Randy notes, “Maybe there is a value in shining a light on this and asking the questions.”Your Husband Is Definitely Gay: TLC’s Painful Portrait of Mormonism|Samantha Allen|January 1, 2015|DAILY BEAST
In the bowl of an electric mixer, cream the butter and brown sugar until light and fluffy.Make ‘The Chew’s’ Carla Hall’s Sticky Toffee Pudding|Carla Hall|December 28, 2014|DAILY BEAST
Behold a dumpy, comfortable British paterfamilias in a light flannel suit and a faded sun hat.God and my Neighbour|Robert Blatchford
She did not need a great cook-book; She knew how much and what it took To make things good and sweet and light.
Mr. Jones swung round a large iron key he held in his hand, and light dawned upon him.Elster's Folly|Mrs. Henry Wood
Distance, the uncertain light, and imagination, magnified it to a high wall; high as the wall of China.The Giant of the North|R.M. Ballantyne
The faint candle-light glimmered on a ponderous gilded cornice, which had also sustained violence.Checkmate|Joseph Sheridan Le Fanu