Double-Reflection Two-Mirror Telescope with Continuous Surfaces and Field Corrector

Beam expanders are commonly used in laser applications to decrease the divergence of the laser beams and increase the beam diameter. These advantages are particularly important for applications that require precision, such as medical surgeries and cutting industries where a slight difference in the beam's precision can translate into significant inaccuracies. However, despite their critical role, traditional beam expanders often fall short in terms of beam intensity and specific targeting. Most traditional beam expanders face the challenge of maintaining the intensity of the laser beam upon expansion. This problem is exacerbated when the beam is to be targeted onto a specific area from a considerable distance. Often, the intensity of the beam with classic expanders diminishes over distance, reducing its effectiveness especially in precision-required tasks. These issues limit the usability of traditional beam expanders in certain situations.

Technology Description

This beam-expander apparatus features a primary and secondary parabolic mirror. The mirrors are engineered with a continuous surface that ensures the reflection of a light beam, at least twice. Additionally, the structure of the mirrors facilitates the expansion and direction of the light beam onto a target object. The light beam first interacts with the primary mirror and is then passed onto the secondary mirror via a port. What distinguishes this technology is its dual reflection and expansion of the light beam. The primary parabolic mirror allows for an initial reflection and expansion, and the light beam is then directed to the secondary mirror, which offers a second round of reflection and expansion. This process delivers an amplified light beam with increased intensity and focused targeting, making it unique from other traditional beam expanders.