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PFB001 Precision Fresnel Biprism Interference Apparatus
PFB001 Precision Fresnel Biprism Interference Apparatus
PFB001 Precision Fresnel Biprism Interference Apparatus
Leybold LD Didactic

PFB001 Precision Fresnel Biprism Interference Apparatus

Regular price $2,250.00 Sale price $2,712.00 Unit price per

Precision Fresnel Biprism Interference Apparatus

    • Perform Fresnel's Biprism Experiment on a 1m optical bench
    • Precision optics allow fringe position measurements to 1/100mm
    • Easy alignment and adjustment of the two virtual light sources

Fresnel's Biprism Experiment is the fundamental example of common path interference by division of wavefront. Light from a slit passes through side-by-side prisms with very shallow angles to separate it into two almost parallel beams. When these beams are brought to overlapping by a convex lens, they interact as if they originated from two virtual sources side by side and generate equally-spaced fringes. The original version of the experiment by Fresnel is difficult to perform because it requires precise adjustment of the slit and prisms, a dark room, and a large amount of space to separate the fringes for easy viewing.

Contents:
1. Optical Bench, 1000mm . . . . . . . . . . . . . . . . . . . . . 1
2. Riders, Lateral Adjustment . . . . . . . . . . . . . . . . . . . . 2
3. Riders, Plain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. Sodium Lamp, 20W, 110V . . . . . . . . . . . . . . . . . . . 1
5. Adjustable Slit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
6. Biprism Carrier, Adjustable . . . . . . . . . . . . . . . . . . . 1
7. Lens Carrier, Plain . . . . . . . . . . . . . . . . . . . . . . . . . . 1
8. Eyepiece Carrier, Adjustable . . . . . . . . . . . . . . . . . . 1
9. Micrometer Eyepiece . . . . . . . . . . . . . . . . . . . . . . . . 1
10. Ground Glass Screen . . . . . . . . . . . . . . . . . . . . . . 1
11. Eyepiece Adapter Ring . . . . . . . . . . . . . . . . . . . . . 1
12. Height Fixing Collar . . . . . . . . . . . . . . . . . . . . . . . 3
13. Biprism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
14. Lens, f = +150mm . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTRUCTIONS FOR USE PLEASE CLICK HERE