Light-emitting diode

In a nutshell, this process is to change the light from a cold, white/blue color to a warm yellow/amber color. On incandescent sources, dim-to-warm tuning can be done easily by varying the current through the filament, changing its actual temperature, and therefore change the CCT of the light. To imitate the behavior of incandescent light sources, LED sources would vary the CCT to produce the same color temperature of our familiar light sources. figure 4. dim-to-warm CCT curve Potential…

horticultural lighting in decades” (Morrow). LED lights have been used in a “variety of roles in 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…

EXERCISE 1 As Wenger and Potter (2015) assert, “stand-ups can serve several functions, so it’s important to know in advance what you’re trying to accomplish with an on-camera segment” (p. 284). Personally, I would need to prepare myself thoroughly and conduct some research of my own to learn more about the topic at hand. My goal as a reporter is to establish credibility on the subject and be able to project confidence to the audience (Wenger and Potter, 2015). According to Wenger and Potter…

the full-wave is bi-directional so, it can convert positive half and negative half of the cycle into DC voltage. Two networks that perform full-wave rectification are bridge network and center-tapped transformer. For the bridge network, it has four diodes in bridge configuration. During the period 0 ≤t<T/2, D_2 and D_3 are conducting, while D_1 and D_4 are in the ‘off’ state. It results the positive region to the graph. During the period T/2≤t<T, D_1 and D_4 are conducting while…

(molarity).” (Schmidt, 2015). In this experiment the scientists will measure the amount of Red 40 dye in sports drinks by using a spectrophotometer which consists of a circuit that has a white LED (light emitting diode) light and a photoresistor or light detector. A spectrophotometer measures light absorption. The scientist will be using this tool to create a calibration curve, test the wavelength and resistance of each sports drink, and by using the absorption spectrum they will measure…

HPS and LED hibay lights are not actually the same as some people may think of. Their differences come in performance. The following are some of the comparisons between these two hibay lights. They include the following. Life comparison LED hibay is basically a semiconductor diode and its source theory of life is very long. The principle of this hibay is to meet within the required temperature range section, L70 light fades standards. However, the entire life of the lamp light source is not…

Introduction Interior design is an exciting and rewarding occupation. It revolves around creativity, intellectual fulfillment, and also provides a lifetime of personal appeal. Interior design is vital, vibrant, and dynamic, meaning that as the world changes so does life around us, and design keeps up with the pace. Since we are also evolving and advancing into the future with new technology and ideas, the interior of a space is never truly finished, because it can always be enhanced by the…

in the universe: a black hole. Black holes interact with light, reflecting so little, that they do not let any escape. That is dark but the intense energies created by black holes in the process of eating stars is anything but dark. The level of complexity of light and dark that we see in the universe can also be seen in James Baldwin’s short story “Sonny’s Blues”. In “Sonny’s Blues”, James Baldwin looks past the normal literary uses of light and dark imagery as representing good and bad, but…

Taking a walk in Tate Modern I noticed that the light intensity as well as the light distribution is different in each space: the galleries from the Turbine Hall and the halls. In the galleries there are glowing light boxes displayed on the ceilings. The boxes are made out of glass and a steel frame. In addition to these there are also attached movable light bulbs on the steel skeleton of the boxes. In his article, John Hirst describes the inside of a light box: ‘Internally the boxes have…

Effects of Social Media Before social media existed the way people met each other was through face to face communication. Now when walking down the sidewalk people pretend to be on their phones so they do not have to talk or acknowledge each other. People now days lack social/people skills. Social media over the past couple of years have taken control of people’s lives. Social media is not just taking over people’s lives it is also effecting people’s brains, behavior and thinking. Social…