tech presentation Essay

Submitted By migax

Words: 337

Pages: 2

Open Document

Now we done talking how LED produces light. I am going to explain how the LED emit colors.
There are plenty of materials of semiconductors that can be used in LEDs. It is the different materials of semiconductors that helped LED emit all kinds of colors. Because each different doped semiconductor produces a unique wavelength which determines the color of the light emitted.

Firstly, lets think of the colors of LED. The LED do not have colors intrinsically. It is the light that given off appears to be color. They way we perceive colors is that our eyes are sensitive to the light which lies a small region of the electromagnetic spectrum called “visible light.” The electronic spectrum is a range of radiation of all possible wavelength of radiation. For the visible light, the range of the wavelength lies between 400-700 nanometers. So this is also the range of the wavelength which LED tries to produce.

What is wavelength? As most of you might know, wavelength is the distance from the peak to the next peak. They goes along the direction of the wave continuously.
This diagram shows the visible colors of the shortest wavelength to the longest wavelength. So if we'd say the color is redder than another, it is because the light of the color has a longer wavelength. In the same way. The wavelength of light emitted determines the color of LED.

In order to produce the distinct wavelength, we need to choose the very precise semiconductor material. The semiconductors,

And Disadvantages

to be creative in your own way. You can set up your presentation exactly how you want it. “You can give all of your own presentations the same background and text appearance, which means that you can quickly swap slides between them if necessary. You will also know exactly how the slides follow on from each other and what the links are. You can time the presentation accurately because you know exactly what you are going to say.” (eHow tech, 1999-2012)If you make your own slides it will help you…

Words 1006 - Pages 5

Understanding The Global Water Crisis Essay

% Poverty ________ Any Specific problems to the country/region? Recommendations (Program Objectives) 4. Now do you understand it enough to share? Your task is to design a brief presentation to the class. If you look at your chart it is certainly not a ton of information worthy of a long presentation. It’s simple, keep it simple. You do not have to…

Words 300 - Pages 2

Perspective Essay

to us a lot of new styles. High-Tech Architecture is the one have most close connection with technology. As its name the central to high-tech architecture was the Mechanomorphic idea that architecture should be like a relentless machine. However, High-Tech architecture is not only machinelike but also has high technology in building design. What architects’ design is all about the technology and the functions of buildings. In term of the function of High-Tech Architectures, architect will not focus…

Words 896 - Pages 4

Microsoft Powerpoint and Group Essay

information, but unfortunately we already had that information. As for the others and me, we did some research at home and brought it to class to talk about how we were going to do the presentation. Even though I’m the only person in the Information Tech field while the other group members are in the Electronic Tech field, we found one company that has both fields that makes the…

Words 335 - Pages 2

Unit 2 - Busines Resources Essay

person. With presentation and credentials in hand, you’ll need to make sure you have good communication skills, this can be from communicating very well during your interview to answering questions well. In addition to this you’ll need to ensure you have met the job requirements, for example, if your applying for a manager’s position at a tech store, it would be advised that you have either previous experience or something similar to that, this can be from working on the shop floor as a tech device salesman…

Words 467 - Pages 2

project portfolio Essay examples

draft form in Unit 9 and final form in Unit 11 assist you in your class presentation in Unit 10 or Unit 11 Assignment due dates: Unit 2 Graded PROJECT Part 1: Project Plan (Due Unit 4) Unit 4 Graded PROJECT Part 2: Literature Review (Due Unit 8) Unit 8 Graded PROJECT Part 3: White Paper Draft (Due Unit 9) Unit 10 Graded PROJECT Part 4: FINAL White Paper (Due Unit 11) Unit 11 Graded PROJECT Part 5: Student project presentation (Due Unit 10 & 11) Unit 2 Project Part 1: Project Plan Learning Objectives…

Words 1389 - Pages 6

Eng 102 Module 3 Analysis by Comparison Contrast Essay example

arguing over the weather or women. I will discuss the advantages and disadvantages of each, though, at the end, the preference will be left up to the reader. Presentation style can be a game changer in many scenarios. Throughout history, a charismatic speaker most often bore the weight. Not that much has changed, even with the invention of presentation software. Arguably, nothing has changed, save for the change from poster boards and cutouts evolving into…

Words 889 - Pages 4

Essay on IT Compouter Tech Support Officer

possibility’s for this career are, that you could end up working for the FBI and or you can get a job with some hot shot company to design products for them because they know how to make fancy products and such. The median salary range for an IT computer tech support officer is $46,891 and some benefits are the work environment is very comfy and not very dangerous because you are behind a computer screen and all you really do is help people set up their products and them through any problems they have with…

Words 1216 - Pages 5

Sales Planning A Sales Presentation Essay

Planning a Sales Presentation Product Name: Premier Health Products Massage Chair PHP2025 I. Approaching the Customer: I will use the Merchandise Approach Method (page 309) My script: “Have you seen our brand new state of the art massage chair? This is the PHP 2025 massage chair which is able to support your body and gently but firmly sooth your body tension and sore muscles. The material is pure leather and comes in both colors black and brown.” II. Determining Needs I will determine my customer’s…

Words 551 - Pages 3

Essay on Life lessons

lessons from my 20s Ryan Allis ABOUT THIS PRESENTATION THIS presentation can be found Online at www.hive.org/20s Lessons from my 20s INTRODUCTION Well, hello there Hi there, I’m Ryan. I’m an entrepreneur living in San Francisco. I created this presentation in advance of my 30th birthday on August 14, 2014 to share what I learned in my twenties about life, entrepreneurship, and the world. I hope you will ﬁnd it useful! If you have questions or thoughts, feel…

Words 478 - Pages 2