Optical instruments harness the wave nature of light to reveal worlds invisible to the naked eye. Telescopes gather photons from billions of light-years away, microscopes resolve structures smaller than a wavelength, and fiber optics channel signals across oceans at the speed of light. Each instrument exploits a different aspect of optics — refraction, reflection, diffraction, or interference.
These simulations let you manipulate the key parameters of each instrument and watch how they affect image quality, signal transmission, and energy output. Adjust focal lengths, numerical apertures, refractive indices, and cavity lengths to build intuition for the physics that makes modern optics possible.