Equipment Accuracy:This two-mirror optical system adopts a reflective afocal design, consisting of a primary mirror and a secondary mirror to form a coaxial optical assembly with high image quality, high stability and low distortion. Featuring a compact structure and strong stray light resistance, it is suitable for laser collimation, beam shaping, long-distance transmission and other applications. The integrated mechanical structure incorporates mounting interfaces and adjustment mechanisms, enabling high-precision assembly and long-term stable operation to meet the needs of scientific research, industrial inspection and optoelectronic system integration.

Detailed Introduction:Two-mirror system, or dual-reflector optical system, consists of a primary mirror and a secondary mirror as the core imaging or collimating structure. It is a classic design for high-resolution, achromatic, large-aperture optical systems, widely used in astronomical telescopes, laser radars, deep-space exploration, precision measurement and industrial optical lenses. I. Basic Structure and PrinciplePrimary mirror: usually parabolic, hyperbolic or ellipsoidal, responsible for collecting light and reflecting it to the secondary mirror.Secondary mirror: located in front of the primary mirror, reflects light again to fold the optical path and shorten the overall system length. Core advantages:Completely achromatic (reflection is wavelength-independent), suitable for wide-spectrum and multi-band applications.Folded optical path, system length much shorter than focal length, compact structure.Large aperture and lightweight, beneficial for high light-gathering capacity and high resolution. II. Classic Types of Two-Mirror SystemsNewtonian systemParabolic primary mirror + flat secondary mirrorSimple structure, low aberration, mainly used in astronomical observation. Cassegrain system (most commonly used)Parabolic primary mirror + hyperbolic secondary mirrorLong focal length, short barrel, high imaging quality, mainstream structure for telescopes, remote sensing and spotting scopes. Ritchey-Chrétien system (R-C)Hyperbolic primary mirror + hyperbolic secondary mirror