What is a volumetric grating? What is a grating?

To put it simply, the thickness of the grating is relatively large, and the volume effect must be considered when considering diffraction. It can be made using the holographic method.

It is a stereoscopic grating, which can be used as a carrier! Holograms can also be made.

Explanation: Volumetric grating refers to stereoscopic grating, which is a kind of three-dimensional optical device. Grating is a combination of digital technology and traditional printing technology that can display different special effects on special films.

Bring lifelike three-dimensional worlds to life, cinematic smooth animation sequences, and incredible illusion effects on a flat surface.

Introduction: Stereoscopic grating material cylindrical grating is classified according to material and application: grating plate, grating sheet, grating film three categories.

Sheet grating: grating sheet is a special grating material for printing, the thickness is very thin, divided into PP and PET two materials, the thickness is usually, the cost is very low, the finished product has high clarity and delicacy, suitable for mass printing, mainly used in three-dimensional printing, can directly print the screen. The number of grating lines is between 70 and 200 lines, and the thickness of the grating material is about the same

Dynamic cards, change greeting cards, postcards, book covers, three-dimensional paintings and other small-format products.

Plate grating: the thickness is generally between 4mm, and the number of grating lines varies from 10 to 60 lines. Since the plate has a certain thickness, it is very suitable for making a three-dimensional painting.

Film grating: film grating is usually made of PET (polyethylene terephthalate) raw materials, film grating has the advantages of good elasticity, and its wear resistance, large format, convenient cutting, low cost, etc., due to its improved wear resistance, the focus can be improved in the production process, so as to improve the three-dimensional sense of the finished three-dimensional painting, the disadvantage is that the intermediate medium is needed, the medium can use transparent materials such as organic plates, glass, etc., and the three-dimensional painting production process has one more step composite media process.

Grating film, grating film must be pasted with hard transparent materials (PS plate, acrylic sheet, glass plate), etc., because its number of lines is similar to that of grating plate, so it is basically replaced by grating plate.

A grating sheet is an optical device composed of a large number of parallel slits of equal width and equal spacing. Generally, the commonly used grating is made by carving a large number of parallel notches on the glass plate, the notch is an opaque part, and the smooth part between the two notches can transmit light, which is equivalent to a slit. <

A grating sheet is an optical device composed of a large number of parallel slits of equal width and equal spacing. Generally, the commonly used grating is made of a large number of parallel notches carved with jujube on the glass sheet, the notch is a light-opaque part, and the smooth part between the two notches can transmit light, which is equivalent to a slit.

An optical device consisting of a large number of parallel slits of equal width and equal spacing is called a grating.

The earliest grating was built in 1821 by the German scientist JIt is made of thin wires tightly wound around two parallel thin screws. Because it is shaped like a fence, it is called "grating".

Modern gratings are carved on glass or sheet metal with a precision scribing machine. Gratings are the core components of a grating spectrograph, and there are many types of them.

Generally, the commonly used grating is made by carving a large number of parallel notches on the glass sheet, the notch is the opaque part, and the smooth part between the two notches can transmit light, which is equivalent to a slit.

Raster is a special hologram that can be used in full color and is used in traditional lithography publishing. The term raster derives from the fact that an image is imprinted on a film with a convex transparent line. Intertwined images are presented through the film with embossed lines, revealing different images from different perspectives.

Grating protection is a kind of use of sensors, human hands reach into the non-working area, and are sensed by the sensor, and the air pressure machine ends the action of pressing down, and rises immediately to fully protect personal safety.

Grating is an optical and electronic device, which is most commonly used in elevators, so you won't be caught by elevator doors (some elevators pop people up after they are clamped, which is another way). It consists of many sets of laser emitting and receiving tubes (non-visible light) that emit a signal once the light is blocked. It is widely used in mechanical equipment and production lines, mainly to ensure the safety of operators, detect products or mechanical positions, and so on.

It is a polysemy noun, and what is being said here is a device. The image below is the grating.

Grating guāngshān

A device that uses the diffraction phenomenon of light to generate a spectrum and determine the wavelength is usually made of a large number of parallel fine lines engraved with diamonds on glass, metal and other materials, with a typical value of 6,000 lines engraved in each centimeter, and a spectrum is formed when light passes through it or is reflected by it. Also known as a diffraction grating.

An optical device consisting of a large number of parallel slits of equal width and equal spacing is called a grating.