Surface Figure
Surface form tested by interferometry — PV/RMS values from the actual measurement.
OEM Make-to-Print · Micro Lenses
Custom Micro Lens Blanks — Φ0.33–3.8 mm, Uncoated
A blank a couple of microns off changes the coated lens geometry. We measure diameter and thickness per batch and record values on the COA. Send the drawing and get the fit review within 24 hours.
We are a make-to-print manufacturer: you send the drawing, we make the micro lenses — PCV/PCX from Φ0.33 mm to Φ3.8 mm.
Glass per your drawing · surface 40/20 MIL-PRF-13830B / ISO 10110-7 5/40-20 · NDA before drawings are shared.
The Problem
Four things to verify when ordering micro lens blanks
Blanks are the cheapest part of the chain — and the easiest to get wrong quietly.
1 · Diameter and thickness have to be real. A blank that is a couple of microns off changes the coated lens geometry.
How HSD avoids it: diameter and thickness are measured per batch and recorded on the COA.
2 · Surface quality carries into the coated lens. A dig or scratch on a blank survives polishing and shows up after coating.
How HSD avoids it: surface is checked to 40/20 MIL-PRF-13830B / ISO 10110-7 5/40-20 before shipment.
3 · Glass grade and certificate matter. The grade defines the lens properties and has to match your drawing.
How HSD avoids it: material certificates ship with each batch, and we never substitute a grade without written approval.
4 · Consistency between batches is the quiet killer. Blanks from different lots can differ more than within one lot.
How HSD avoids it: every batch COA carries measured values, so drift is visible before it reaches your line.
A blank is a promise about the finished lens — we keep the numbers on the COA.
In-house production
Micro lens products and production, in-house
Our own micro lens line — grinding, polishing, centration and inspection. Customer designs are never displayed.
Micro lens tray
Micro lens production
Micro lens production
We are make-to-print: you send the drawing, we make the micro lenses. We don't commit to specifications without a drawing. If we can't do it, we'll say so in the reply.
Specifications
Specifications — per drawing, with site-wide standards
| Item | Specification |
|---|---|
| Types | PCV / PCX, per drawing |
| Diameter | Φ0.33–3.8 mm |
| Diameter tolerance | −0.005 / −0.012 mm |
| Thickness tolerance | ±0.01–±0.02 mm |
| Centration | ≤3′, tighter per drawing |
| Surface quality | 40/20 · MIL-PRF-13830B / ISO 10110-7 5/40-20 |
| Edge chipping | ≤0.05 mm, per drawing · ISO 10110-7 E 0.05 |
| Coating | Uncoated blanks, or AR 400–700 nm (per drawing) |
Why us
Why HSD
ISO 9001:2015 quality system
In-house since 2009 — no reselling
Measured COA per batch
NDA standard before drawings
24-hour engineer quote
MOQ 10 · glass never substituted
FAQ
Common questions
Are these uncoated blanks?
Yes — micro lens blanks ship uncoated, ready for your coating line. Finished AR-coated lenses (400–700 nm) are also available on request.
What diameters can you make?
Φ0.33–3.8 mm, PCV or PCX per your drawing.
What glass materials do you work with?
Per your drawing — CDGM, SCHOTT, OHARA and similar grades; material certificates ship with each batch.
What's on the COA?
Part number and revision, measured diameter and thickness, measured centration, surface quality and test method. Numbers — not PASS.
What's the MOQ and how fast is a quote?
MOQ 10. Quote within 24 hours of drawing confirmation; samples and production run on the same tolerances and the same process.
Have a micro lens blank drawing? Make-to-print, quote within 24 hours.
You send the drawing, we make the micro lenses — NDA protected, MOQ 10. If we can't do it, we'll tell you why.
Send Your Drawing →Email [email protected]Application context
Custom micro lens blanks: the drawing defines everything
Custom micro lens blanks are made from the drawing: diameter, radius, edge and centration are reviewed before production.
Check on the drawing: diameter, thickness, radius, edge and centration datum.
What defines a custom micro lens blank?
The drawing. We review geometry and tolerances, then confirm process and price.
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
Interference fringes on a large-aperture surface — PV 0.141λ.
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