• Easy installation, with the installation manual provided;
• 30 mm coaxial cage system, easy operation;
• Door-to-door installation services by professional engineers are available.

       Fresnel circular aperture diffraction experiment is a classic optical experiment in the College Optical-Physics Experiments. The phenomenon that light deviates from the straight transmission path while it goes through a barrier or an aperture is called diffraction of light. Both diffraction of light and interference of light prove the wave character of light. In the Fresnel circular aperture diffraction experiment, since there is a circular aperture, the diffraction occurs when the light passes through the diffraction screen, and the diffraction pattern is formed on the viewing screen through the lens. The diffraction pattern expands around the circular aperture, and forms a series of concentric annuli. This is a typical optical experiment to observe the diffraction of light.

       Through building the Fresnel circular aperture diffraction cage system, students solve various problems encountered during experiments to develop a further understanding of the theoretical knowledge and the principle of optics about the system. OMTOOLS offers the Fresnel circular aperture diffraction cage system kit for teaching or research use in a variety of optical laboratories. An OD 25.4 mm optic fiber collimator with FC/PC interfaces is included in the kit, and we also provide optional light sources. The system is compatible with your light sources and OD 25.4 mm optic fiber collimators. For optic fiber collimators with other outer dimensions such as 9 mm, 11 mm, 12 mm, 16 mm, and 18 mm, or other customized dimensions, we provide collimator adapters with SM1 threads. To facilitate the compatibility with adapters, we can replace the OMTF25A lens mounts with jack screws and fixed light sources with the OMTF25B lens mount with clamping rings free of charge.