An optical bench is a precision device used to measure and evaluate the performance of lenses and other optical components. It typically consists of a stable, straight platform with adjustable mounts for lenses, light sources, and targets, allowing accurate alignment and measurement of optical properties.
Optical benches are commonly used in lens design, testing, and quality control, enabling engineers and photographers to assess factors such as focal length, sharpness, distortion, and aberrations. This equipment is essential for developing high-quality lenses and ensuring consistent imaging performance.