ABout Gold-plated retroreflector

<p>Aspherical&nbsp;<a href="https://www.ch-optics.com/news" rel="noopener noreferrer" target="_blank" style="background-color: transparent;">optical production</a>: free-form surface, multi-plane, Fresnel, diffraction, diffraction, matrix, micromirror array, V-groove array, progressive lens; other infrared, laser, imaging, ultra-fine, and micro-processed lenses: sulfur series Glass, germanium, zinc sulfide, zinc selenide, single crystal silicon, high-resistance silicon and other precision optical design, super-precision mold core production, injection molding.</p><p>&nbsp;</p><p>