Capabilities · 01

Drawing & Manufacturability Review

You own the design. We make sure it can be fabricated, coated, and inspected — at the cost it should be.

Capability 01

The Drawing Is Where the Money Is Saved

Eighty percent of an optic's cost is committed before the first blank is cut. Before we quote, our engineers review your drawing until the tolerances, the process, and the budget agree.

Every incoming drawing gets the same treatment: we check each specification against our fabrication, coating, and inspection processes — before quoting. The result is a print that costs what it should, not what habit says.

Our review covers material selection against wavelength, environment and budget; tolerance cost drivers surface by surface; coating specification matched to angle of incidence and flux; and inspection planning so every callout on your print is testable in-house. We read your convention — ISO 10110, MIL, or annotated commercial drawings. The design authority stays with you.

How a senior engineer reads your tolerance block: irregularity and wavefront specs are checked against the beam footprint at each surface; the smallest footprint gets the tightest money. Everything else gets relaxed until performance says stop. That review alone typically removes 20–30% of fabrication cost.

Tolerance vs. Relative Cost — Typical Multipliers
Attribute	Commercial	Precision / High-End
Diameter tolerance	±0.10 mm · 1.0×	±0.010 mm · ~1.6×
Center thickness	±0.15 mm · 1.0×	±0.025 mm · ~1.8×
Surface irregularity	λ/2 · 1.0×	λ/10 · ~2.5×
Scratch-dig	60-40 · 1.0×	10-5 · ~2–3×
Centration (wedge)	3 arcmin · 1.0×	15 arcsec · ~2×
Multipliers are typical industry ranges — actual deltas depend on material, size, and geometry. We price both levels on request so the trade is visible.

Athermalization toolbox: Ge (+396), Si (+160), chalcogenide (+30–60), CaF₂ (−10.6) — units 10⁻⁶/K. Pairing a negative-dn/dT element against the positives lets focus hold passively from −40 to +70 °C. See the Material Data Center for the full matrix.

Deliverables

What You Get From a Drawing Review

RVW

Manufacturability Report

Line-by-line feedback on your drawing — which callouts drive cost, which are untestable, and which alternatives keep performance.

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DWG

Annotated Print

Your ISO 10110 or MIL-style drawing returned with suggested revisions — no orphan tolerances, no untestable specs.

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Cost Trade Report

Two or three priced tolerance levels per element so program management sees exactly what each requirement costs.

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Bring Us the Problem, Not Just the Print

A one-hour drawing review before you freeze it is the cheapest optic you will ever buy.

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