Surface Figure
Surface form tested by interferometry — PV/RMS values from the actual measurement.
OEM Make-to-Print · Micro Lenses
Cystoscope Micro Lenses — Φ0.33–3.8 mm, PCV/PCX, Centration ≤3′
At Φ1.0 mm, a few arc-minutes of centration error moves the image center. We hold −0.005/−0.012 mm and verify every batch with measured COA values. Send the drawing for the fit review.
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 reasons micro lens batches fail at assembly
At Φ0.33–3.8 mm, tolerances are measured in microns — and problems surface at your bench.
1 · A micro lens with centration error shifts the image center. At Φ1.0 mm, a few arc-minutes of centration error moves the image center visibly.
How HSD avoids it: centration is verified on a per-batch sampling plan, and the measured values — not a pass/fail claim — go on the COA.
2 · Micro fit tolerances are unforgiving. −0.005/−0.012 mm on diameter is a fit tolerance for ultra-slim tube assemblies; drift breaks the fit with no visible defect.
How HSD avoids it: diameter and thickness are verified on a per-batch sampling plan; the values go on the COA.
3 · The “manufacturer” may be a trader. When drawings move through several shops, nobody can explain a yield problem.
How HSD avoids it: we are the factory — a 30-person precision optical workshop in Nanjing; your drawing stays with our engineers.
4 · Batch drift can't be traced. A COA that only says “within spec” hides lot-to-lot shifts.
How HSD avoids it: every batch COA carries measured values — dimensions, centration, surface, test method.
A micro lens line works when every batch carries the same tolerances and the same numbers on paper.
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 you a make-to-print manufacturer?
Yes. You send the drawing, we make the micro lenses — PCV/PCX from Φ0.33 mm to Φ3.8 mm.
Can you hold −0.005/−0.012 mm on diameter at this scale?
Yes — it is the standard tolerance on our micro lens line, verified on a per-batch sampling plan with measured values on the COA.
What centration can you hold?
≤3′, tighter per drawing. The COA carries measured values, not a within-spec statement.
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 cystoscope micro lens 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
Cystoscope micro lenses: compact PCV/PCX optics
Cystoscope micro lenses use compact PCV/PCX forms in the Φ0.33–3.8 mm range, made to drawing with centration ≤3′.
Check on the drawing: diameter, thickness, radius and edge treatment.
Can you make cystoscope micro lenses from a sample?
We prefer the drawing; a sample can be measured and quoted as a reference.
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
Interferometer workstation — a PV 0.424λ surface under test.
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