Compact fluorescent lamp

Abstract Inspired by the color tuning function of King Blade X (an electronic glow stick), this paper investigates different approaches of LED color tuning, including dim-to warm tuning, white color tuning, and full color tuning. This paper would go over their operating principles, advantage and withdraws, and potential applications. Introduction The interest to investigate LED color tuning originated from my King Blade. This is an electronic glow stick used in live concerts. One of its…

The discovery of electricity and the invention of the lightbulb in the mid-19th century revolutionized the American society, politics, and culture. During the mid 19th century life was different: candles were the only source of light, transport was steam-powered, food was stored in ice boxes. However, within the next fifty years, electricity would change that. In 1878, Thomas Edison invented the incandescent lightbulb; in 1888, Frank Sprague’s electric trolley system became the first…

of the time and is credited today for helping to build the nation's economy during its early years. Some of Thomas Edison's inventions were the Electrographic Vote Recorder, Automatic Telegraph, Electric Pen, Phonograph, Carbon Telephone, Electric Lamp, Electric Lighting System, Electric Generator, Motograph, Fuel Cell Technology, Universal Stock Printer, Ore Separator,…

Infrared, fluorescent, and LED lights, and they all can do different things. Ultraviolet light can be used as a way to light up certain types of clothing, or it can be used to sterilize food. Infrared light is mainly used as a way to heat up food, or as a shorter wavelength to control household items, such as televisions and DVD players. Fluorescent light is created by an electric current running through types of stable gas, which in turn produces short wave ultraviolet light, or fluorescent…

Supporters argue that there are minor lifestyle changes if any. So says, Laura Caton, a sales consultant from Sandwich, MA. She began switching to energy-saving compact fluorescent light bulbs, also known as CFLs, which provides the same amount of light as the traditional 100-watt light bulb while consuming about 75% less energy. Compared with the traditional 100-watt light bulb, close to 90% of the electricity used is…

Technological innovations had a major impact on the U.S during the Gilded Age. Our major inventors were Thomas Edison and Nicola Tesla. Thomas Edison invented the DC light bulb however, Nicola Tesla invented the AC light bulb. Tesla worked under Edison as his apprentice when he was working on the light bulb. While Tesla was under Edison, JP Morgan was trying to find an industry that he could rise from the ground, and that's when he found Edison with electricity and the light bulb. JP…

The light began to flicker. She rotated to the light switch gently. Nobody was there. Maybe the light bulb is loose, she thought to herself. She pranced upon her bed, which was beneath the light, and tried to screw in the light bulb a bit more. there was nothing wrong with the light bulb. She tilted her head in confusion. Maybe it gave out, she convinced herself. Wait didn’t I just change it today? Her thoughts commenced to gallop wildly in her head. Suddenly, there was a deep chuckle in the…

reduced. Additionally, they consume less energy, making them a more efficient option. However, according to Seong-Rin Lim , a Korean environmental engineer, in his article “Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL), and Light-Emitting Diode (LED) Bulbs,” LED and CFL bulbs contribute to the resource depletion of copper due to its high content. Many metals are used for the making of LED bulbs. Ling also mentions that “considerable resource…

horticultural lighting, including use in controlled environment research, lighting for tissue culture, and supplemental and photoperiod lighting for greenhouses” (Morrow). CFL and Incandescent lamps are currently being replaced by LED since “Current LED lamps are five times more efficient than incandescent lamps” and have “the ability to produce very high light levels with low radiant heat output when cooled properly, and the ability to maintain useful light output for years without…

diversional science activities and invited him to the playroom. The first activity we completed was creating a lava lamp with water, vegetable oil, food coloring, and fizzing tablets. The patient thoroughly enjoyed this activity and made an extra one for Mr. Guy as a belated birthday gift. He also displayed pride in his social interactions and his accomplishments in making the lava lamps. Reflecting back, I think that this activity went well because I offered as much control/choice over the…