The Newest Thing in Lighting - LED Lighting and What It Can Do by Paul Forte
The other day my son said to me, what else could anyone possibly invent? Sometimes it would seem that way, but I think that couldn’t be further from the truth. Back in the late sixties and early seventies someone realized that light emitting diodes could be used for indicator lights. ... They only were available in the color red, but that didn’t stop anyone, in fact we all became quite familiar with that red color in things like calculators and hand held games. ... Controllers made color changing possible as well as mixing colors to create almost any color in the spectrum.

The Benefits of Printers Using Individual Ink Cartridges by Eli Fry
Individual cartridges are not a new phenomenon to hit the printing world; in fact, they have been around for years. HP was one of the first companies to have separate color cartridges for their printers, such as the early Designjet series and wide format printers. ... Today's high-end printers use more individual color cartridges in additional to cyan, magenta, yellow, light cyan and light magenta. ... Epson and Canon photo printers can use an array of additional colors like red, green, blue, matte black, photo black, light black and even light light black.

How DLP Projectors Work? by Paul Cris
DLP (Digital Light Processing) projectors can be attached with computers, DVD players, VCR players, HDTV’s and video games. It comes in various models and with enhanced features. DLP Projectors are also called as Multimedia projectors. In mid 1990’s Texas Instruments developed Digital Light... The color wheel converts the white light into red, green and blue. ... In DLP systems white light is passed through a color wheel and it runs to the surface of the DMD panel. ... The DMD is coordinated with a graphic signal, a light source and a projection lens.

LED Lighting - An Energy Efficient Alternative by Margarette Tustle
LED lighting first came widely available to the average consumer in the 1970’s. There were red LED lighting in digital calculators and digital watches, and although there were limitations to its effect, the consumer was thrilled and eager to purchase products with this type of technology. ... This movement of electrons over the arch is what produces light. ... If the arc has a tighter radius, the light emitted will be brighter. ... LED lighting is used nearly everywhere you use light. ... They are used in common, everyday items, such as your microwave and the traffic light on the corner.

Putting Digital Colors in a Different Hue by Lala C. Ballatan
Nowadays in the digital technology world, consumers are getting more inclined in the digital imaging market. As compared before, digital imaging tools like digital cameras, color printers and color scanners became less expensive, thus more accessible to eager users. ... How the Human Eye sees Color Identifying Primary Colors Additive and Subtractive Color Color Models Storing images in computers Visualizing a color space Color Mixing Color selection Color manipulation Color mapping and calibration As industries reputed in art and science converge to the digital domain,...

Modern LED Devices vs. Traditional Light-Emitting Sources by Groshan Fabiola
Light-emitting diodes (LEDs) represent various types of semiconductor devices that produce incoherent narrow-spectrum light fascicles when powered with a steady-state voltage electrical source, producing the effect known as electroluminescence. LEDs come in a wide variety of shapes, sizes and... LEDs are by far superior to traditional light sources such as incandescent light bulbs and fluorescent lamps, as they use less energy and produce less heat (unlike conventional light sources which consume a lot of electrical energy but transform only a fraction of the used energy into light,...

The Variety of Roles Fulfilled by LED Lighting Devices by Groshan Fabiola
At present, LEDs are extensively used in many different branches of the industry, taking many different forms and fulfilling a wide range of roles. Miniature LED devices are incorporated in thousands of products, including computer components, VCR, DVD, Stereo, Audio and Video equipments, gaming... LED lighting devices have proved to be the best alternative to traditional light sources (particularly incandescent and fluorescent light devices) and have already replaced such illuminating devices in many segments of the industry.

The Language of Color by Beth Brodovsky
In a world already full of acronyms and codes, who would have thought that something as simple as color could join in the confusion? Knowing the different color models and how they are used is not only helpful in getting the visual results you want it is critical to staying on budget. ... RGB Color RGB stands for red, green and blue and makes up onscreen color. ... PMS colors are typically used in one and two color printing and are also called spot color or flat color. ... CMYK is also known as process color, full color, 4 color, and 4c.

How Does HID Lighting Work? by Diane Newsom
HID, or high definition, lamps are typically required when high levels of light are needed to cover large areas. They are the lights you see at ballgames and theme parks, at stadiums and in gyms. There is a high demand for HID lamps because of their efficiency on a wide scale and their ability... High-pressure sodium lamps generally emit a more yellowish light, but are available with whiter light. ... High intensity discharge lamps produce light when the gases inside the fused alumina tube are heated to the point of evaporation.

Basics of RGB and CMYK for Ink Jet Printing at Home by William Leung
In the world of home ink jet color printing, there is some confusion concerning CMYK color and RGB color. Many photo enthusiasts don't realize what kind of color space their digital cameras output and are confused when it comes to printing images off of their home ink jet printers. ... New higher end ink jet printers, however, are now printing directly from the RGB color space as there is a wider spectrum of color that can be reproduced in RGB compared to CMYK color. ... If there is no option to convert the color space from RGB to CMYK, most likely, the printer will print directly from an...