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23 Cards in this Set
- Front
- Back
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transparent |
transmits most of the light that strikes |
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translucent |
scatters light as it passes through |
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opaque |
reflects or absorbs all of the light that strikes it |
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camera |
focuses light and records an image on film |
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eyepiece |
in a telescope magnifies the image so you can see it clearly |
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hologram |
a three dimensional photograph created by using laser light |
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optical fiber |
a long, thin strand of glass or plastic that can carry light for long distances without allowing the light to fade out |
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telescope |
lenses on mirrors to collected and focus light from distant objects |
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total internal refraction |
occurs when light is completely reflected from the internal surface of a medium |
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laser |
lens is the larger lens in a telescope |
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microscope |
forms enlarged images of tiny objects |
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cornea |
transparent front surface of the eye |
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iris |
ring of muscle that contracts and expands to change size of the pupil |
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pupil |
hole through which light enters the eye |
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retina |
layer of cells that line the inside of the eyeball |
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rods |
cells in the retina that responds to a small amount of light |
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cones |
cells in the retina that respond to color |
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optic nerve |
short thick nerve that carries signals from the rods and cones to the brain |
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nearsighted |
able to see nearby objects clearly but distant objects objects appear blurry |
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farsighted |
able to see distant objects clearly but nearby objects appear blurry |
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concave |
can produce images that are either smaller or larger than the object |
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convex |
always produces an image that is upright |
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Sclera |
White of the eye |
