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L6-02. Optical Board - Circular Slab
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L6-02. Optical Board - Circular Slab
Purpose
To show focusing of a circular lens.
Equipment
Optical board with a circular disc, concave and convex lenses to produce parallel rays.
Images
Description
Parallel rays incident on a 12 inch diameter circular plastic disc converge at the focal point. Spherical aberration is clearly seen. Number of slits and their spacing can be changed by choice of slit baffle and distance of baffle from source. This cylinder can also be used to produce a nice rainbow; see Demonstration N1-44: RAINBOW - OPTICAL BOARD.
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See pagesl1. light sources & light rays
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See pagesl2. plane mirrors
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See pagesl3. curved mirrors
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See pagesl4. refraction
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See pagesl5. total internal reflection
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See pagesl6. lenses
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See pagesl7. optical instruments
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See pagesl1. light sources & light rays
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See pagesl2. plane mirrors
-
See pagesl3. curved mirrors
-
See pagesl4. refraction
-
See pagesl5. total internal reflection
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See pagesl6. lenses
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See pagesl7. optical instruments