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Kaleidoscopes

Kaleidoscopes. How reflection is used. What you need to know:. - The mirrors in a kaleidoscope are flat; therefore they are simply plane mirrors. - The reflecting ‘formula’ < of incidence = < of reflection applies here. - The rectangular strips of mirror form a triangular prism.

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Kaleidoscopes

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  1. Kaleidoscopes How reflection is used.

  2. What you need to know: - The mirrors in a kaleidoscope are flat; therefore they are simply plane mirrors. - The reflecting ‘formula’ < of incidence = < of reflection applies here - The rectangular strips of mirror form a triangular prism - The sums of the angles within that triangle should equal 180 degrees. -> There are only three possible combinations: -60-60-60 degrees - 45-45-90 degrees - 30-60-90 degrees

  3. Three Mirrored Kaleidoscope A three mirror kaleidoscope is made up of three rectangular mirrors

  4. How reflection works in a three mirrored kaleidoscope

  5. Light passes through the object (in here, the circle) and reflects everywhere in straight lines off the mirror. Since the angle of incidence is the same as the angle of reflection, the image that appears will be the exact same. The distance will also stay the same. Both angles are the same; therefore the same image is able to be created. More examples of different angles.

  6. Two mirrored Kaleidoscope A two mirror kaleidoscope is made up of two rectangular mirrors, and one non reflective (usually black), surface.

  7. How reflection works in a two mirrored kaleidoscope Unlike a three mirrored kaleidoscope, instead of a third mirror, there is a solid, non reflective side. This solid side gets reflected by the two other mirrors, but the amount of images is not infinite because it cannot go farther than the solid “walls” Equal distances Same angles

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