ISP Optics now offers fast prototyping for your custom IR Optics requirements.


Designers often have many fundamental questions when starting on a new project:

1. Can it be made?

Prototyping optics can prove out designs and help designers identify manufacturing challenges and cost drivers.  We will work with you to identify advantages and limitations.

2. How will it perform?

Fast turnaround prototypes allow designers to test out their systems and modify them quickly as needed.

3. Will this material perform well in your system?

Fast prototyping can ensure you find the right material quickly.

Prototyping will verify design before production commitments are made and before production tooling is made.  Prototyping is a key stage in the development of optical system functionality.

ISP can turn your design into reality with extremely fast turnaround times.


First, have a look around our extensive selection of catalog optics. If we have it in stock, we can ship the next day.

I found an item in the catalog that's close to what I need, but the piece is too thick/wide?

If our catalog item is close to your specifications but is a bit too big, we can cut it to size for you. You like our two inch window, but you need it cut to 42 mm: we can do that. The plano-convex lens has the focal length you need, but the center is too thick? We can thin it for you. If you need an uncoated catalog part coated, we can do that too.

Completely Custom

Some options can even be shipped the within a week.  We keep a wide variety of materials on hand. We can make:

Germanium (Ge), Silicon (Si) up to 2.5 inches in diameter;
Gallum Arsenide (GaAs), Calcium Fluoride (CaF2)
Barium Fluoride (BaF2) up to 2 inches in diameter;
Zinc Selenide (ZnSe), Zinc Sulfide Clear Grade (ZnS) up to 3 inches in diameter.

Typical Tolerances

Typical fast turn tolerances for a 25mm diameter lens are:
Diameter: +0, -0.13mm
Center Thickness: +/-0.05mm
IRR (asphere and sphere): 1 fringe @ 633nm wavelength
IRR(plano): 1 fringe @ 633 nm wavelength
Scratch/dig:  40/20
Radius: +/-0.1% on base radius
Clear aperture: 95%
Wedge: < 3 arc min


Our fast prototyping can also include coatings, including our most popular antireflection coatings:
3-5 µm on Silicon (BBAR-SI-3-5) or Germanium (BBAR-GE-3-5),
8-12 µm on Germanium (BBAR-GE-8-12) or Zinc Selenide (BBAR-ZNSE-8-12),
2-13 µm on Zinc Selenide (BBAR-ZNSE-2-13).
We have standard antireflection coatings for CdTe, CaF2, GaAs, AMTIR-1 as well as protective coatings and reflective coatings. A full list of our standard coatings can be found here. If our standard coatings don't meet your needs, we can design a new custom coating just for you.

Lead Time

While we cannot give a specific lead time for an unknown part, we can offer some sample lead times assuming ISP's standard tolerance specifications.

  • If the part you are looking for is in stock in our catalog, we can ship the next day.
  • If the part you are looking for is a modification on an in-stock catalog part, we can ship in 1-3 days.
  • If you need us to coat an in-stock catalog part, we can ship in 5-7 days.
  • If you need an in-stock catalog part modified and coated, we can ship in 6-8 days.
  • If you need a brand new part, we can ship in 7-14 days.
  • If you need a brand new part and you need it coated, we can ship in 10-20 days.


If you would like to find out more about our fast prototyping or would like to request a quote, please email us at and indicate "Fast Prototyping" in the subject line. You can also call us at 914-591-3070