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Applications of Light Fundamentals By: Becca Trout.

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Presentation on theme: "Applications of Light Fundamentals By: Becca Trout."— Presentation transcript:

1 Applications of Light Fundamentals By: Becca Trout

2 CD’s RUse infrared light RStores data in the form of tiny pits in a spiral around the disk. A power laser reads the data and that is how it plays the cd. RUse infrared light RStores data in the form of tiny pits in a spiral around the disk. A power laser reads the data and that is how it plays the cd. http://www.fofweb.com/Electronic_Images/ImageGallery/SciLAS30.gif

3 CD’s continued… RCD players emit light at 780 nm RThe shorter the wavelength the more information that can be stored. RCD players emit light at 780 nm RThe shorter the wavelength the more information that can be stored. http://www.raysisterpublishing.com/music/wp-content/uploads/2009/11/cd-rom.jpg

4 DVD RWavelength between 635 and 650 nm RUse visible (red) light. RThe shorter wavelength lets the laser read smaller pits (more data). RWavelength between 635 and 650 nm RUse visible (red) light. RThe shorter wavelength lets the laser read smaller pits (more data). http://www.cdrinfo.com/Sections/Articles/Sources/Pioneer%20DVR-A05/images/4X_DVD-R_Media_BIG_1.jpg

5 Laser Printers RUses a narrow beam of light to illuminate a line on a photoconductors surface, only illuminated are will conduct electricity RIlluminates drums to make details RCan produce extreme detail at the speed of light. RUses a narrow beam of light to illuminate a line on a photoconductors surface, only illuminated are will conduct electricity RIlluminates drums to make details RCan produce extreme detail at the speed of light. http://www.woodlaserengraver.com/wp-content/uploads/2011/01/Laser-Printers.jpg

6 Works Cited  Billings, Charlene W., and John Tabak. "reading and writing with lasers." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RRennie, Richard. "speed of light." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. R"Ultra-short light pulse achieved." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RHenderson, Harry. "Thomas Edison, sound recording, and motion pictures." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RBillings, Charlene W., and John Tabak. "history of lasers." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RDaintith, John, and Richard Rennie. "compact disc (CD)." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RBillings, Charlene W., and John Tabak. "creating laser light." Science Online. Facts On File, Inc. Web. 24 Feb. 2011..  Billings, Charlene W., and John Tabak. "reading and writing with lasers." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RRennie, Richard. "speed of light." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. R"Ultra-short light pulse achieved." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RHenderson, Harry. "Thomas Edison, sound recording, and motion pictures." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RBillings, Charlene W., and John Tabak. "history of lasers." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RDaintith, John, and Richard Rennie. "compact disc (CD)." Science Online. Facts On File, Inc. Web. 24 Feb. 2011.. RBillings, Charlene W., and John Tabak. "creating laser light." Science Online. Facts On File, Inc. Web. 24 Feb. 2011..

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