Item Details

Shedding Light on Lenses [electronic resource]

Liacos Educational Media
Format
Video; Computer Resource; Online Video; Online
Summary
Without lenses, vast areas of human knowledge, from astronomy to microbiology, would never have developed - not to mention photography and the movies! This video uses compelling animation sequences and other visuals to explain how convex and concave lenses produce images in a wide variety of situations. After a concise overview of refraction, the program illustrates how magnifying glasses work and how projectors cast images onto cinema screens. It then looks, quite literally, into a tuna fish's eye as a basis for showing how vision works. After further explaining how light travels through concave lenses, the film discusses how corrective eyewear helps people who have vision defects. Viewers are also given a chance to consider aspects of slow motion, fast motion, and stop motion imagery, as well as the mathematics of lenses and image formation.
Release Date
2013
Run Time
56 min.
Language
English
Rating
6 & up
Notes
  • Encoded with permission for digital streaming by Films Media Group on December 25, 2013.
  • Films on Demand is distributed by Films Media Group for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.
Contents
  • Introduction to Lenses (1:19)
  • Convex Lenses (3:31)
  • Convex Lenses: Close Objects (3:44)
  • Convex Lenses: Distant Objects (4:29)
  • Projectors (3:31)
  • Modern Projectors (3:08)
  • Producing Color (1:40)
  • Magnifying and Diminishing Images (2:04)
  • The Eye (3:20)
  • Perception (4:18)
  • Concave Lenses (3:25)
  • Correcting Vision Defects (1:40)
  • Short-sighted (2:03)
  • Long-sighted (2:43)
  • Alternative Vision Correction (1:32)
  • Fast Motion (2:20)
  • Slow Motion (2:49)
  • Magnification (3:29)
  • Focal Length (2:28)
  • Apply the Formula (2:10)
  • Credits: Shedding Light on Lenses (0:07)
Published
New York, N.Y. : Films Media Group, [2013], c2013.
Publisher no.
55427 Films Media Group
Access Restriction
Access requires authentication through Films on Demand.
Description
1 streaming video file (56 min.) : sd., col.
Mode of access: Internet.
System requirements: FOD playback platform.
Technical Details
  • Access in Virgo Classic

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    a| Introduction to Lenses (1:19) -- Convex Lenses (3:31) -- Convex Lenses: Close Objects (3:44) -- Convex Lenses: Distant Objects (4:29) -- Projectors (3:31) -- Modern Projectors (3:08) -- Producing Color (1:40) -- Magnifying and Diminishing Images (2:04) -- The Eye (3:20) -- Perception (4:18) -- Concave Lenses (3:25) -- Correcting Vision Defects (1:40) -- Short-sighted (2:03) -- Long-sighted (2:43) -- Alternative Vision Correction (1:32) -- Fast Motion (2:20) -- Slow Motion (2:49) -- Magnification (3:29) -- Focal Length (2:28) -- Apply the Formula (2:10) -- Credits: Shedding Light on Lenses (0:07)
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    a| Access requires authentication through Films on Demand.
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    a| Without lenses, vast areas of human knowledge, from astronomy to microbiology, would never have developed - not to mention photography and the movies! This video uses compelling animation sequences and other visuals to explain how convex and concave lenses produce images in a wide variety of situations. After a concise overview of refraction, the program illustrates how magnifying glasses work and how projectors cast images onto cinema screens. It then looks, quite literally, into a tuna fish's eye as a basis for showing how vision works. After further explaining how light travels through concave lenses, the film discusses how corrective eyewear helps people who have vision defects. Viewers are also given a chance to consider aspects of slow motion, fast motion, and stop motion imagery, as well as the mathematics of lenses and image formation.
    521
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    a| 6 & up.
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    a| Mode of access: Internet.
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    a| System requirements: FOD playback platform.
    650
      
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    a| Composition (Photography)
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    a| Geometry.
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    a| Lenses x| History.
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    a| Perception.
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    a| Photography, Artistic.
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    a| Senses and sensation.
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    a| Visual literacy.
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    a| Educational films.
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    a| Films for the Humanities & Sciences (Firm)
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    a| Films Media Group.
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    a| Liacos Educational Media.
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    i| Originally produced: d| Liacos Educational Media, 2013.
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    z| Part of the Films on Demand collection. u| http://proxy01.its.virginia.edu/login?url=http://digital.films.com/PortalPlaylists.aspx?aid=29178&xtid=55427
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