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11 Cards in this Set
- Front
- Back
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diverging lens
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the lens at the right is thinner in the middle and the rays of light are made to diverge
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converging lens
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the lens is thicker in the middle and the rays of light are made to converge.
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real image
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the image formed by a single converging lens is upside down
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virtual image
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the image formed by a single converging lens is right side up and look as if they came from the image position.
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angular magnification
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depends on how the glass and the object are held relative to the eye.
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focal point
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the point at which a beam of light converges.
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focus
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the point at which a beam of light converges.
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principle axis
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the line joining the centers of curvature of its surfaces.
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astigmatism
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eye defect where the cornea is more curved in one direction than the other. fixed with cylindrical corrective lenses that have more curvature in one direction than in another.
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aberration
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distortions in an image.
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chronic aberration
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the result of different speeds of light
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