Surface Figure
Surface form tested by interferometry — PV/RMS values from the actual measurement.
Tier 2 Optical Manufacturer · ISO 9001:2015
Uncoated Rod Lens Blanks for Coating Laboratories
A blank that seats 0.02 mm hard can stop your coating run before it starts. We hold −0.02/−0.04 mm and measure every batch. Send your drawing for a fit check and quote within 24 hours.
Coating labs use these uncoated rod lens blanks to avoid chamber reloads, second runs and incoming rework.
Fits Without Rework
Quote Within 24 Hours
Measured COA per Batch
ISO 9001:2015 | NDA Protected | COA Per Batch | MOQ 10+
Send Drawing / RFQ Video Factory TourWhat This Solves for Your Coating Line
Your coating line needs uncoated rod lens blanks that seat in the chamber without rework and survive your AR, HR or specialty coating process. These precision-ground blanks are made to your drawing — you control the coating, your OEM customers get parts ready to assemble.
One drawing starts the process: we review manufacturability and optical path fit, confirm the −0.02/−0.04 mm diameter fit and ≤3′ centration, then ship with a batch COA. Our team works to ISO 10110, German DIN, and US MIL specs as required.
Serving: Coating Laboratories • OEM Assemblers
Rod lens blanks are currently supplied to coating labs and OEMs in Europe, Middle East, and Asia.
Rod Lens Blanks — Precision Ground, Ready for Coating
Uncoated rod lens blanks manufactured strictly to your drawings — you control the coating process
Real rod lens blanks from our shop floor
Uncoated white blanks, ready for your coating process. Final specifications per your drawing — make-to-print.
⌀ 1.19 – 8.0 mmLength 1 – 67 mm
Tolerance −0.02 to −0.04 mm (fit tolerance)Centration 1 – 3 arcminEdge chipping ≤0.05 mm
Optical glass245 standard sizes
Optical Glass Materials
JGS1 (UV-grade fused silica), H-ZF4 / H-ZF6 / H-ZF7L (high-index flint), H-LAK series (high-refraction low-dispersion), H-K9L (standard optical glass), N-SK15 and more. Full material certs provided per batch.
Coating-Ready Surfaces
Surfaces are precision-ground and polished to 40/20 scratch-dig — ready for your coating process immediately after cleaning. Broadband AR coating (400–700 nm) also available for customers who need fully finished lenses.
Optical Surface & Durability Standards
Surface quality 40/20 scratch-dig per MIL-PRF-13830B. Designed for repeated high-temperature and chemical cleaning protocols used in assembled instruments. Material selection supports long-term durability.
Precision grinding line
Precision polishing line
Centration & dimensional inspection
Optical quality inspection
Eccentricity testing
Standard Rod Lens Specifications
245 items| No. | Spec (Φ×L mm) | Type | Status |
|---|
Capacity & Lead Time
| Order Type | Monthly Capacity | Standard Lead Time | Notes |
|---|---|---|---|
| Standard sizes (proven) | 5,000+ pcs / month | Confirmed at quote | Made to print from proven tooling; COA included |
| Custom sampling | Dedicated line | Depends on drawing complexity | Engineer-to-engineer DFM review included |
| Batch production | 10,000+ pcs / month | 15–30 days | Annual framework contracts supported |
| Large-volume OEM | Scalable upon agreement | To be discussed | Dedicated production line available |
Precision Optics Packaging: Individually packed in anti-static vacuum-sealed trays · Shock-resistant foam inserts · Outer export-grade carton · Compatible with customer cleanroom assembly protocols. Temperature & humidity controlled workshop environment.
Why Choose HSD as Your Rod Lens Blank Supplier
Focused production – Dedicated rod lens blank manufacturing. No distractions.
Stable quality – Strict dimensional control & batch consistency. Process locked — no undocumented material or supplier changes.
ISO 9001:2015 Certified – Full dimensional & inspection report (COA) per batch: dimensions, centration, surface quality, transmittance. Batch traceability for audit compliance.
Engineer-to-Engineer DFM Review – We review your drawings for manufacturability, tolerance optimization, and optical path compatibility before production.
Fast response – 24h quotation, MOQ from 10 pieces. Sampling Depends on drawing complexity.
Quality Guarantee & After-Sales – Defective products are replaced free of charge. We stand behind every batch. No exceptions.
100% custom – Produced exactly to your technical drawing. German / EU optical standards supported.
Reliable delivery – Long-term project support. Annual framework contracts welcomed.
Coating Lab Trusted
Supplying uncoated blanks to coating labs & OEMs across Europe, Middle East & Asia
Repeat Orders
Monthly recurring orders from multiple industrial customers
Full Traceability
Every batch ships with complete dimensional, material & transmittance COA
Certification & Quality Assurance
ISO 9001:2015 Certified
Professional optical workshop • Temperature & humidity controlled • Full inspection equipment
Full dimensional report per batch
German / EU optical drawing experienced
Centration ≤ 3 arcmin
Diameter tolerance per drawing
Surface quality 40/20
Transmittance measured
Batch traceability
ISO 13485 certification in progress. Currently serving EU OEM customers under ISO 9001:2015 with full batch COA and traceability.
We don't just make rod lens blanks. We measure, document, and stand behind every single batch.
Industry Presence
Meet us at major optical and medical device exhibitions worldwide
CMEFShanghai · 2026
We exhibit regularly. Contact us to schedule a meeting at the next show.
Have a drawing? Send it for an engineer-to-engineer review.
Quote within 24 hours · NDA protected · MOQ 10 · COA sample available on request.
Send Drawing / RFQFAQ
Common questions
Do you supply uncoated blanks only, or finished lenses too?
Uncoated blanks are our standard for coating laboratories. Finished AR-coated lenses (400–700 nm) are also available for customers who need them.
What tolerances do you hold on rod lens blanks?
Φ1.19–8.0 mm with −0.02/−0.04 mm fit tolerance, centration ≤3′, surface 40/20 per MIL-PRF-13830B, edge chipping ≤0.05 mm — verified on a per-batch sampling plan with measured values on the COA.
What glass materials do you work with?
JGS1, H-ZF, H-LAK, H-K9L, N-SK15 and similar, per your drawing. Material certificates ship with each batch, and we never substitute a grade without written approval.
Do you provide a batch COA?
Yes — every batch ships with a COA carrying measured values: dimensions, centration, surface quality and test method. A redacted sample is available on request.
What is the MOQ and how fast is a quote?
MOQ 10 pieces. Quote within 24 hours of receiving your drawing, NDA protected.
Send Drawing / Request Quotation
Tell us your rod lens blank requirements and we'll respond within 24 hours
🔒 NDA Protected — Your drawings stay yours.
All drawings, specs, and optical data you share with us are treated as strictly confidential. We'll sign your NDA or ours before you send anything sensitive. Prefer to keep it simple? Send non-confidential specs first and we'll quote within 24 hours.
📄 Request our standard NDA template — or we'll sign yours
All drawings, specs, and optical data you share with us are treated as strictly confidential. We'll sign your NDA or ours before you send anything sensitive. Prefer to keep it simple? Send non-confidential specs first and we'll quote within 24 hours.
📄 Request our standard NDA template — or we'll sign yours
RFQ Sent — Securely
We'll reply within 24h. If you requested an NDA, we'll send it with our response. Your data is confidential.
Check Our Factory Online
Schedule a live video tour to verify our rod lens blank production capability.
See grinding, polishing, inspection and quality control process.
All information shared during the tour is confidential.
Application context
Rod lens blanks for coating labs: the blank-first route
This page is for coating laboratories buying rod lens blanks: uncoated, tight diameter, material certificate and batch COA.
Check on the drawing: diameter, length, material and chamfer.
Do you supply blanks without coating?
Yes, we stop at the blank stage and let your coating process take over.
Inspection & Metrology
We measure it — and the numbers go on your COA.
Every batch is verified with interferometry, centration measurement and surface inspection. You get the actual measured values, not a “within spec” checkbox.
Centration
Centration checked on the centration station, typically ≤3′. The reading shown is from a real part — 2.02′.
Surface Quality
Surface and edge quality inspected under a video microscope — scratch/dig per MIL-PRF-13830B.
What “Pass” Looks Like
A passing surface from a production run: PV 0.51λ, RMS 0.059λ. Rejects never leave the workshop.
Measured COA per batch — ask for a sample COA with your quote. · Learn how to read a surface map →
Real inspection record from this product line
Waviness check on an uncoated blank — PV 0.346λ.
Real measurement, kept on file. Your COA gets the same kind of data.
See the Factory Live — Schedule a Video Tour
Watch rod lens grinding, polishing, centration measurement and final inspection in real time. All information shared during the tour is confidential — your NDA is welcome.
Schedule a Live Video Tour