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2014 Student Video Entries

Congratulations to the 2014 Student Contest Winners!

By Gustavo Almeida and Colleagues from Universidade de Sao Paulo

What Happens When We Watch a Movie, or Play a Game?
By Ethan Bratton, Arkansas Tech University

Click on the links below to view all of the student video submissions.   

By Gustavo Almeida, Adriano Otuka, Emerson Barbano, Renato Juliano Martins, Nathalia Tomazio, and Franciele Renata Henrique, Universidade de Sao Paulo, Sao Paulo, Brazil

Our video explains how screen devices produce the colors we see. We introduce a few information of the transition from black and white TVs to colors ones and ask the audience how many colors screen devices are able to reproduce. With three LEDs we demonstrate the RGB additive method and recording cell phones screens under a microscope we show real devices working. Then, we say that a pixel is able to produce around 17 million colors. 

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The Colors of Optical Disks
By Robert Gatdula, Siamak Abbaslou, Joe Maio, Matt DeNovellis, Dheer Mehrotra, and Jay Patel, Rutgers University, New Jersey, USA

We explain the optical fundamentals -- such as refraction and diffraction -- of CDs, DVDs, and Blu-ray disks using flash animations and live videos.

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Disco Ball
By Armand Nanha, University of Yaounde, Cameroon

The presented product consists on some reflective mirrors and laser sources used to reflect the light in many directions..

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How a DVD Drive Works!
By Kamran Qaderi, Brigham Young University, Utah, USA

I have explained the basic idea to how a DVD drive works, and I have sketched the design for a DVD drive and explained the details for each piece of it. What I have prepared in the video is a basic idea how a DVD drive works, I could not cover all detailed parts because of timing.
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Cold Atomic Fusion
By E Emma Ceolin, University Windsor, Ontario, Canada

Interferometry arrangement with 4x microscope objective lens, 650nm HeNe, over photopaper; the reconstruction under a regular light bulb. Tungsten across length slopes: "diffraction efficiency lower curve... signal beams" in representation for average index, OSA published work, Dielectric Holograms.

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Liquid Crystal Displays
By Jack Devine, University of Otago, Otago, New Zealand 

In this video I briefly discuss the exciting technology behind Liquid Crystal Displays. I begin by talking about their consumer applications. Then, I discuss the polarization of light with a simple demonstration. Finally, I discuss how the twisted nematic effect is used in display technologies to create an array of pixels at varying degrees of illumination.

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Second-Harmonic Generation Phenomena in "Green" Laser Pointer
By Rostyslav Danylo, Olena Polianska, and Yevheniia Chernukha, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

We present on the video a laser pointer. It’s a modern product permitting to indicate faraway objects. The idea of the video is to show the interior construction of the pointer to the audience. We want to describe the elements the pointer consists of and demonstrate product’s optical scheme. We saw up the frame of the pointer. We separate gradually different optical elements and describe their importance. In fact we see the edge of the gain media and the mirror deposed on it.

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Security Holograms! 
By Laura Mari Pulido Mancera, Sylvia Patricia Ceballos, Ivan Pulido, and Andrea Pacheco, Universidad Nacional de Colombia, Bogota, Colombia

This video shows the basics and importance of security holograms for advertising and anti-counterfeit in several products like pharmaceutical drugs, innovative arts and advertising tickets. We include some videos about the research and manufacture of holograms in Colombia. We explain that holograms by themselves are First level security. This means that only the observation of the hologram give us information about the reliability of any product. We participate as the OSA-Student Chapter UNBOS.
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Video-Projectors: Inside Out
By Angel David Rodriguez Jimenez, Fernando Soldevila, Eva Salvador Balaguer, Jorge Perez, Esther Irles, and Omar Torres Mendieta, Universitat Jaume I, Castello, Spain

Electronic entertainment is the most extended application of video-projectors. However, they are also used at schools, universities and companies around the world as a tool to give information to people in the fastest and straightforward way known to date: visually. In this video we show how digital video-projectors work and how optics is involved in its functioning by showing its main components: light sources, a spatial light modulator and its optical system.

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What Happens When We Watch a Movie or Play a Game
By Ethan Bratton, Arkansas Tech University, Arkansas, USA

This is a short explanation of how a movie, or game, is stored on a disk, and how a DVD player, or game system, reads that data.

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Working Principle of Document Scanner
By Than Singh Saini and Nishant Shankhwar, Delhi Technological University, Delhi, India

This video contains an explanation of the working principle of a common flatbed scanner. We used schematic diagrams and animations to explain the internal working properly. We described the main parts, with more emphasis on the optical components.