Precision Manufacturing Excellence: Sub-Arcsecond Roof Prisms for European Market

Client Requirement:

A European optical systems company sought a roof prism with an extremely tight 90° angle tolerance of just 2 arcseconds and a slender, elongated design. Most manufacturers could only achieve tolerances in arcminutes, but our HG optics, which Fuzhou-based optical processing facility specializes in sub-arcsecond precision, making this a standard production capability.

Key Challenges:

  1. Ultra-Tight Angular Tolerance (2 arcseconds) – Demands extreme precision in grinding and polishing.
  2. Slender Geometry – Increases difficulty in maintaining structural integrity during processing.
  3. Full-Aperture Inspection Requirement– Ensures no defects across the entire optical surface.

Our Solution:

As a leading optical substrate manufacturer in Fuzhou, we leveraged:

✔ Advanced CNC Grinding & Polishing Equipment – Ensuring micron-level accuracy.

✔ Highly Skilled Technicians – Years of experience in sub-arcsecond prism fabrication.

✔ Premium Polishing Compounds – Delivering superior surface quality (λ/10 or better).

Result:

✅ **Achieved 90° angle within 1-2 arcseconds (exceeding the 2″ requirement).

✅ **Perfect edge sharpness & wavefront accuracy – Critical for high-end applications.

✅ **Full-aperture inspection passed** – No surface defects detected.

Client Feedback:

Your team’s ability to consistently produce arcsecond-level prisms is exceptional. The precision and quality meet our most demanding optical system requirements.

Why Choose Us for High-Precision Prisms?

– Routine Production of 1-2 Arcsecond Tolerances – Not just a prototype capability.

– Strict Process Control – From material selection to final metrology.

– Competitive Pricing – High precision doesn’t have to mean high cost.

Contact Us for your most challenging prism & optical component needs!