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Light in Technology

Physical Science - Middle School

 
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Light & Technology Uses of Light in Technology Telescopes use lenses and mirrors to collect and focus light from distant objects such as planets and stars. There are many types of telescopes that allow us to see into outer space. The simplest telescope, a refracting telescope, uses two lenses. The first lens, the objective, gathers and focuses the light. The second lens, the eyepiece, enlarges the image. Microscopes also use a combination of lenses to magnify objects. An objective lens and an eyepiece lens are used to magnify an object to produce a real and enlarged image. A reflecting telescope includes a mirror to help gather light. virtual enlarged image objective lens light eyepiece real image Optical fibers are used to send information between telephones or computers. Optical fibers are long thin pieces of glass or plastic and are used to transmit light. Light travels along the fiber and only leaves at the other end. © Copyright NewPath Learning. All Rights Reserved. 94-4484 Visit www.newpathlearning.com for Online Learning Resources. refracting reecting objective lens eyepiece lens concave mirror plane mirror refracting reecting objective lens eyepiece lens concave mirror plane mirror refracting telescope reflecting telescope Photos courtesy of NASA
objective lens light eyepiece Pause and Review Identify the parts of the microscope that allow us to see things that are normally invisible to the naked eye. © Copyright NewPath Learning. All Rights Reserved. 94-4484 Visit www.newpathlearning.com for Online Learning Resources. Light & Technology Identify the type and parts of the telescopes. refracting reecting objective lens eyepiece lens concave mirror plane mirror refracting reecting objective lens eyepiece lens concave mirror plane mirror Type: Type: