TEXTILE ENGINEERING TECHNOLOGY FROM FIBER TO FABRIC: 02/01/2009

Thursday, February 5, 2009

RIETER

Leading global systems supplier for the production of short staple yarn and nonwovens

Rieter Textile Systems is the leading supplier of integrated systems for manufacturing yarns from natural and man-made fibers for all applications. Rieter Textile Systems is the world’s only supplier of products and know-how covering the entire spinning process and can therefore develop optimal solutions for customers. Rieter Textile Systems supplies technologies for producing nonwovens, a segment with numerous applications ranging from the hygiene to the industrial and the medical sector.

The offerings of Rieter Textile Systems range from complete installations from raw material to end product, subsystems, machines, components, wear and tear parts as well as spare parts to accompanying services from pre sales to after sales.

Worldwide production and service network

Rieter Textile Systems operates production plants in Western Europe, the Czech Republic, India and China. Textile Systems’ sales and service centers support customers in all those regions of the world where they have installed its production systems or are setting them up.

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Same Color Illusion

The same color illusion — also known as Adelson's checker shadow illusion, checker shadow illusion and checker shadow — is an optical illusion published by Edward H. Adelson, Professor of Vision Science at MIT in 1995.The squares A and B on the illusion are the same color (or shade), although they seem to be different. This can be proven by copying the image into an art program and sampling the color of A and then of B, which will show that they are in fact the same color.

"When interpreted as a 3-dimensional scene, our visual system immediately estimates a lighting vector and uses this to judge the property of the material."

The left image below shows what appears to be a black and white checker-board with a green cylinder resting on it that casts a shadow diagonally across the middle of the...........

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Optical Illusion

An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed in the brain to give apercept
that does not tally with a physical measurement of the stimulus source. There are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and brain of excessive stimulation of a specific type (brightness, tilt, color, movement), and cognitive illusions where ........

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Color Opticle Illusion

Color only starts to exist when our perception systems produce the impression of ‘color’: light is perceived on the retina as a stimulus and is processed into a perception of color in our brain. In substance, colors are already illusions in themselves...

olor is energy… in fact it is an electromagnetic phenomenon, which depends on the way that light is reflected on the objects. Every object absorbs a part of the light which hits it and deflects the rest towards our eyes: this..........

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LIGHT AND COLOR

How do we See?
Did you ever look at a beautiful painting or witness a gorgeous sunset and wonder, `How is it that I am able to see that?' What enables us to see the light and experience such wonderful shades of color during the course of our everyday lives? Some may take seeing for granted, but if the process is looked at closely, you can see what a wonder it really is.

First Things First...
Before the topics of light and color can be explored, there must first be an understanding of waves. Waves have high and low points, and the distance between one of those highs and lows and the next is called a wavelength. Just how long that wave is will determine the amount of energy that it has. For example, a long.............

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Wednesday, February 4, 2009

COLOR

Color or colour is the visual perceptual property corresponding in humans to the categories called red, yellow, blue and others. Color derives from the spectrum of light (distribution of light energy versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects, materials, light sources, etc., based on their physical properties such as light absorption, reflection, or emission spectra.

Typically, only features of the composition of light that are detectable by humans (wavelength spectrum from 380 nm to 740 nm, roughly) are included, thereby objectively relating the psychological phenomenon ..........

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