Product Introduction
When light encounters obstacles during propagation, it can bypass the edges of the obstacles and continue to move forward. This phenomenon of deviating from a straight line is called diffraction of light. Fraunhofer diffraction refers to the diffraction phenomenon observed at different distances behind a diffraction screen when a monochromatic point light source is placed at the focal point of a lens and a monochromatic parallel light passes through the lens and vertically illuminates the screen. When the screen is far enough away, a large bright spot appears at the center of the spot, surrounded by some weak concentric rings of light and dark. After moving outward, the diffraction pattern shows a stable distribution, with the center always bright, but the radius continues to expand. This type of diffraction is called Fraunhofer diffraction,
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Sodium element light source: bidirectional light outlet, freely adjustable height, adjustable range of 120mm, rotatable; The lamp tube has multiple heat dissipation holes, and the surface is sandblasted and oxidized black treated, with high wear resistance and beautiful appearance; Equipped with a control power supply,
Small aperture aperture: manually sliding adjustment, evenly distributed, easy to adjust, aperture size: 0-8mm
Multi slit porous plate: It integrates single slit, double slit, three slit, four slit, distance hole, square hole, triangular hole, circular hole, and one-dimensional grating into one, and can be used for diffraction experiments with multiple holes, achieving multi in one, convenient, and fast; Size: 41 * 31 * 2mm.
Convex lens: with frame, sandblasted and oxidized black treatment, diameter 40mm, F=70, 150, 300; Double refraction: 3, light absorption: 3; Aperture: 34mm.
Frosted glass screen: with stainless steel columns, diameter 10mm, overall size: 115 * 125 * 1.5mm; frosted glass size: 72 * 72mm; using elastic rubber outer frame.
Measuring micro mirror: equipped with a fine adjustment dial and a rotation angle of 360 °, it can measure hole spacing, groove width, groove distance, etc; Focal length 31.46mm, magnification: 20X, working distance: 62mm, field of view diameter: 9mm, measurement range: 6mm.
Helium neon laser: Light source: Helium neon laser, cavity length: 180mm, working current: 4mA, mode: TEMoo/multi, output power ≥ 0.8mW, outer diameter: 30mm ± 1, wavelength: 632.8nm, power: 1.5mW.
Sliding seat: 2 sets of one-dimensional sliding adjustment seats; Three sets of two-dimensional sliding adjustment seats. Sandblasting treatment, wear-resistant and durable; Including: fixed type, lifting type, three-dimensional adjustable type; During the adjustment process, equal height
Other: Tape measure: 1 meter; Steel tape measure: 2 meters; Just a meter ruler; 1 meter; White light source: incandescent light source that generates diffuse reflection through frosted glass, compact structure, easy to use, 12v35W. |
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