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12 Cards in this Set
- Front
- Back
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real image (compound microscope)
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The image that is projected toward your eye when light is passed through the objective
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virtual image (compound microscope)
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What you actually see
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Why is it called a compound microscope?
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The lenses compound the image to increase its magnification
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What is another name for the eyepiece?
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ocular
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What is the magnification of the ocular?
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10x
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structure of the comparison microscope
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2 microscopes joined together by a "comparison bridge"
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purpose of the comparison microscope
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You can look at 2 objects at the same time and compare them side by side
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What is a comparison microscope used for in forensics?
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to help the investigator to discriminate the details of 2 different objects (ex: bank notes)
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How are polarizing light microscopes used in forensics?
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-to determine different types of hair (dog, human, etc.)
-analyze polymers and fibers |
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What is a microspectrophotometer?
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a UV-visible spectrophotometer attached to a compound microscope
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How is a microspectrophotometer used in forensics?
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to determine specific colors and dyes on fibers
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How are images created using a scanning electron microscope?
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an electron beam is focused onto an object to excite electrons on the surface of the object
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