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What is the working principle of a homogenizer?

What is the working principle of a homogenizer?

The homogenizer principle of operation is a rather simple one: spread the laser energy, typically concentrated at the center of the beam, by scattering the beam so that it overlaps itself multiple times, creating a beam with a larger divergence angle than the original beam, but whose energy is spread more uniformly.

What is homogenized light?

An optical homogenizer is an optical component that makes the intensity profile of a light beam more uniform. This means that local intensity variations in the beam profile are eliminated, and the overall envelope of the beam becomes smooth.

How do you homogenize a laser beam?

Homogenization is created by dividing the initial wave front into separate beams with each lens element and then focusing those new beams onto the target area with a focusing lens. (Fig. 1). The separate beams are superimposed on the illumination plane focused with the focusing lens.

What is homogenizer pump?

A homogenizer is a single acting reciprocating multi-plunger pump with an adjustable valve, the homogenizing valve, able to create the pressure used to micronize various products.

What is high pressure homogenizer?

High-pressure homogenization is the most widely used method for both small and large scale NFC production due to its high efficiency, simplicity and lower cost compared to other alternatives. It involves passing the cellulose fiber-water suspension through a very narrow channel under high pressure.

What is beam shaper?

A beam shaper is an element that a single-mode beam is converted into a flattop beam, a ring-mode beam or a ring + center mode beam. This is effective in cutting, welding, drilling, patterning. They are ready that a single element type included condenser lens function and a non-focus unit.

What is a microlens array?

Microlens arrays (MLAs) are arrays of small, sub-millimeter, lenses that are used in optical applications, such as light collection on CCD arrays, optical microscopes, light field cameras, 3D imaging and displays, optical sensors and LiDAR systems, etc.

Which equipment is used for homogenization?

A homogenizer is a piece of equipment used for the homogenization of various types of material, such as tissue, plant, food, soil, and others.

Why is homogenisation important?

Homogenization is an essential unit operation during the manufacture of a number of food and dairy products. As a unit operation, homogenization performs multiple functions such as reduction of particle size, dissolution, mixing, dispersion, encapsulation, and emulsification.

How does high pressure homogenizer work?

The major principle of high-pressure homogenization (HPH) relies on abrupt pressure gradient, high turbulence, cavitation as well as strong shearing forces, which are aroused under strong depressurization of highly compressed sludge suspensions (up to 900 bar) (Fig.

What is rotor stator homogenizer?

Rotor-stator homogenizers consist of a fast-spinning inner rotor with a stationary outer sheath (stator) to homogenize samples through mechanical tearing, shear fluid forces, and / or cavitation (the rapid forming and collapsing of bubbles).

What is an optical homogenizer and how does it work?

An optical homogenizer is an optical component whose function is to transform the radiance from an input beam into a radiance distribution with increased uniformity. This transformation can be accomplished by various techniques, each with its own characteristics and optical performance.

How to homogenize a laser beam?

A second method for homogenization is the use of a rod lens. In this layout, multiple reflections from the initial beam are mixed inside of the rod (or light pipe). The length of the light pipe (homogenizing rod) should exceed several fold the laser beam cross section size, which dictates the longitudinal system size.

What is the difference between homogenization and lens array?

A lens array is composed of separate lens elements stacked side by side to form an array then placed in the laser beam path. Homogenization is created by dividing the initial wave front into separate beams with each lens element and then focusing those new beams onto the target area with a focusing lens.

What is a homogenizing rod in laser welding?

In this layout, multiple reflections from the initial beam are mixed inside of the rod (or light pipe). The length of the light pipe (homogenizing rod) should exceed several fold the laser beam cross section size, which dictates the longitudinal system size.