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Function and Applications
To investigate the generation of convergent and divergent light beams with the assistance of Fresnel's zone theory.
Equipment and technical data
- The diaphragm has a system of 40 light and dark rings.
- Limit circles between the rings have a diameter dn = 1.2 (n)0.5 mm (n = 1, 2, 3...40).
- Focal distance for He-Ne light: 56.9 cm.
- Dimensions (mm): 50 × 50.
Device name
Article no.
Digital learning
Article no. P2220402
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