What is a polarizer and what does it do, and what is the polarizer principle?

Natural light can be turned into polarized light.

The optical component is called a polarizer.

The polarizer has the function of shielding and transmitting the incident light, which can make the longitudinal light or the transverse light transmit and shade the other. It is composed of a polarizing film, an inner protective film, and a pressure-sensitive adhesive.

A composite material formed by laminating layers and outer protective films. There are two categories: black and white and color, which can be divided into three categories: transmission, transmission and reverse transmission. Polymer compounds are generally used.

The polyvinyl alcohol film is used as the substrate, and then impregnated with iodine with strong dichroism, and then dichroic acid is used in an aqueous solution of boric acid.

After the reduction is stabilized, it is then stretched 4 to 5 times in one direction. After stretching, the iodine molecules are neatly adsorbed on the film and arranged on top of the film, which has the ability to deviate or detect bias.

There are many kinds of artificial polarizers, one of which is to use a polyvinyl alcohol polymer compound film with a network structure as the base of the sheet, immerse it in iodine solution, and then reduce and stabilize it with boric acid aqueous solution, and then stretch it directionally.

times to orient the macromolecules. That is, after stretching, the polymer material is changed from a network structure to a linear structure, and the iodine molecule is neatly adsorbed on the film and has polarization or polarization detection properties, which is called a polarizer.

h -- polarizer. High polarization, reachable.

Applies to the entire visible light.

Range. It has a wide range of applications; The disadvantages are poor strength, can not be damp, easy to depolarization, etc.

What is the function of the polarizer The role of the polarizer: 1. Reduce and eliminate the reflection on the surface of the object, such as the reflection of metal, water surface, and glass. For example, if you want to photograph the inside of a shop window, you need to reduce the glass.

It is a polarizer, which is used under a polarizing microscope.

Only certain polarized light is allowed to pass through.

Polarizer principle: polarizer is a thin film made by artificial methods, which is made by a special method to make the selective absorption of strong particle crystals in the transparent adhesive layer in a regular arrangement, which allows the light to pass through a certain direction of electrical vector vibration (this direction is called the polarization direction), and absorb the light that vibrates perpendicular to it, that is, it has dichroism. Therefore, after the natural light passes through the polarizer, the transmitted light basically becomes planar polarized light.

Since the polarizer is easy to make, it is a commonly used polarizer.

Human perception of polarized lightHumans perceive polarized light because of a chemical called lutein, which is arranged in concentric circles in an area of the retina called the macula. Lutein is widely found in nature and has a slender molecular structure. This seemingly ordinary chemical has a special optical property:

When its long axis is parallel to the direction of polarized light vibration, lutein will absorb the blue light that enters the light.

Tourmaline crystals are partially absorbed.

The two principles acting on optics are the same. Both turn natural light into polarized light.

Polarizers and polarizers are the two devices that enable this process.

A polarizer can be a polarizer or other crystals, as long as it can turn natural light into field vibration, it can become a polarizer. Polarized light is typically placed in test equipment.

The polarizer material is a thin film material, and the main merit is PVA, which can be thick or thin, and the key to the capacity depends on the material. It is used in the LCD display industry, and without polarizers, LCD cannot image display. Also used in 3D glasses.

One is in the field of electricity and the other is in the field of optics.

Those are two different things.

The simplest wire grid polarizer is composed of many parallel wires, and the light with an electric field parallel to the direction of the wire will cause the electrons in the wire to vibrate, and the light will be absorbed, while if the polarization of the light is perpendicular to the wire, the electrons cannot vibrate quickly in this direction, and most of the light will pass through.

Glass polarized lenses are made of high-quality optical glass, with a number of excellent advantages. Using multi-layer laminated tempered glass polarized lens technology, the diopter (DPT) and curvature of the product are strictly controlled by advanced production technology to ensure the accuracy of the lens.

The lenses of glass polarized sunglasses are made of imported polarizing film, imported adhesive, and Japanese process three-layer vacuum lamination technology, which is 2-3 times stronger than ordinary single-layer tempered glass, and each lens has passed the US FDA ball test. Extraordinary anti-ultraviolet light function (100% anti-ultraviolet light), fully in line with the United States, Europe EN1836 and Australia AS1067 quality inspection standards.

Polarized glass is the most high-end product, because the super hardness of the glass has created its super anti-scratch function, and its superior light transmittance and other optical properties are incomparable to any resin lens, but the cost is also expensive, and it is the best polarized lens for high-end health products.

Originally used in the United States for military aviation, G15 is the hottest and healthy color, which is resistant to ultraviolet and infrared. There are two types of myopia polarized lenses and solar polarized lenses.

There is a light transmission direction, and when a beam of light is incident on this optical element, the light rays that vibrate parallel to it can pass through, and the rays perpendicular to it are blocked.

Polarizers are composed of long chains of macromolecular substances, arranged in a regular pattern. When the electric field is transmitted along the direction of arrangement, the electrons of macromolecular substances absorb the energy of the electric field, causing forced vibration, so that the electric field is absorbed and cannot pass through. When the electric field is transmitted in the direction of vertical arrangement, the electron vibration needs to cross the molecular chain, and at this time, it can only vibrate in a small amplitude, and the absorbed electric field energy is small.

The role of a polarizer:

1. Reduce and eliminate the reflection on the surface of the light-emitting object, such as the reflection of metal, water surface, and glass. For example, if you want to photograph things in the window, you need to reduce the impact of the reflection of the glass air, and if you want to photograph underwater objects, you must try to reduce the reflection on the water surface.

2. Darken the sky and bring out the shape of the clouds.

3. Making the color thicker actually lowers the brightness.

4. Extend the ** time.