Custom Optics & Capabilities Resources Use our helpful tools, guides, videos and other resources to solve your optical design challenges. Spherical lenses are anything but simple. Convex and concave lenses must be crafted for predictable, reliable performance with uncompromising quality. Spherical lens fabrication begins with a LaCroix Manufacturing Engineer dedicated to seeing your project from sketch to completion. We follow a step-by-step process with rigorous quality checks along the way. 1. Optical Design Our engineering team will collaborate with you and aid with suggestion in making your optics manufacturable. 2. Shaping, Grinding Diamond ring tools generate the radius into the glass blank. A series of progressively smaller grit diamond wheels or loose abrasive material finely grinds the lens blank. 3. Polishing Pitch or polyurethane pads and a cerium oxide slurry finish the spherical lens surface. 4. Test and Measurement In-House Custom Optical Coatings We have extensive in-house coating capabilities to meet your requirements. Looking to learn more about spherical lenses? Use our resources. Copyright © 2026, LaCroix Precision Optics