optical system

An optical system is a combination of components like lenses, mirrors, and prisms that work together to form images. These systems are fundamental to optical instruments such as microscopes and telescopes.1

Components of an Optical System

Optical systems can include a variety of elements:
* Lenses and Mirrors: These are primary components that refract or reflect light to focus it.2
* Light Sources: Some instruments require artificial light, like tungsten filament lamps or lasers, especially for scientific applications.3
* Detectors: These capture the image formed by the system. The human eye is a common detector, but photographic film and electrical detectors are also used, extending into infrared and X-ray spectra.4
* Other elements: These can include prisms, filters, and fiber-optic bundles.34

An essential part of many optical systems is the aperture stop, often called the iris, which controls the amount of light passing through.2