Quick answer: Custom Size Longpass Filters covers cut-on 400 – 1500 nm, slope < 2% of edge. Prototypes ship in 5-10 working days.
We supply custom size longpass filters to cut-on 400 – 1500 nm, slope < 2% of edge – and because we are a machining house first, non-standard outlines, notches and mounting holes are part of the normal order, not an exception.
Key parameters
| Optical specification | cut-on 400 – 1500 nm, slope < 2% of edge |
|---|---|
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Design guidance
Three items decide most of the cost and lead time on this work:
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
Who orders this
The recurring buyers of custom size longpass filters: scientific instruments (reference flats, cells, prism mounts, stage inserts); medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows); mems devices (cap wafers, TGV substrates, motion-sensor lids).
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Related reading on this site: surface quality guide, optical glass options, infrared windows.
Common questions
Is there a minimum order for custom size longpass filters?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
Specifications on this page were last reviewed by our engineering team in September 2026.