Optics And The Eye
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OPTICS and the EYE!
QuickTimeª and a decompressor are needed to see this picture.
(we have to know the things I circled in red and where they are in the eye [retina, lens, cornea] ) lens—it bends light but only fine tunes the image cornea—the main lens (does the most bending of the light) retina—light detector, receives the light Ideally, the image should be focused right on the retina. However, most of us have bad vision. (mostly: near sighted) – eye focuses behind or in front of retina. “Near sighted” – ( in front) corrected with a divergent lens
“Far sighted” (behind) corrected with a convergent lens
eye
Parallel rays because they are coming from far away
Not parallel b/c closer
QuickTimeª and a decompressor are needed to see this picture.
(we have to know the things I circled in red and where they are in the eye [retina, lens, cornea] ) lens—it bends light but only fine tunes the image cornea—the main lens (does the most bending of the light) retina—light detector, receives the light Ideally, the image should be focused right on the retina. However, most of us have bad vision. (mostly: near sighted) – eye focuses behind or in front of retina. “Near sighted” – ( in front) corrected with a divergent lens
“Far sighted” (behind) corrected with a convergent lens
eye
Parallel rays because they are coming from far away
Not parallel b/c closer
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