Witness samples
Witness samples allow testing without handling the actual part, to ensure the coating process is accurate before moving forward with the optical component. And after coating, the witness samples are often used to measure reflectivity, transmission, and polarization, as well as humidity, temperature, durability, and salt fog tests. The witness material is should be the same as the substrate material and is almost always the industry standard of roughly 1” (25 mm/25.4mm) in diameter  to accommodate the size of standard spectrophotometers tooling .

FTIR transmission windows – round,square,drilled, and customized
Transmission spectroscopy is one of the basic techniques for IR analysis. The sample and wavelength to be analysed determine the choice of window material, path length and window arrangement.

Intrinsic have very strong ability for the optical windows, we have three fabrication technique of pitch polishing, double side polishing and contact polishing to supply windows size from 1.2mm to 350mm with thickness from 0.12mm to 60mm, and the shape can be round, square, drilled, step, and customized based on our CNC machines. Usually we need CAD drawing to work with customized shape windows.
ICC windows can reach high level precision like s/d 10-5; flatness 1/10l@633nm; parallelism less than 5min; bevel 0.1-0.25mm; Ra <1nm based on testing devices of ZyGO, AFM, 15sec gonimeter, and 2D imaging system.
Here is our featured goods.

ICC provides standard x-galvanometer, y-galvanometer, and custom-made galvanometer. Products include forming blank, single-sided polishing, double-sided polishing, and coating. All products meet RoHS, reach, and MSDS requirements, and provide 10% test reports.

ICC’s silicon substrate material, with high purity of 8N, has good continuity and uniformity, stable polishing process, and high durability of coating laser, which can meet the needs of different customers. At the same time, ICC’s whole industrial chain coverage can ensure rapid delivery.

It refers to uncoated optical elements, including window, lens and prism, which are applied to laser. The main feature is that consistency of material is better and stress is lower .At the same time, the surface treatment of the lens must be proper. It has strict requirements for the S&D, RMS, Flatness and lens eccentricity.
The laser materials which ICC can process, including optical glass, synthetic crystals, and metal substrates. For example, BK7, sapphire, ZnSe, CaF2, MgF2, uvfs, Pyrex, etc. Elements can be flat, spherical, wedge, and prism
Here are the special products of ICC

248NM, MGF2 Laser window D50*5， BK7 350NM Plano-convex lens
1064NM, UVFS, Laser window D35*6， 2940， sapphire window
10.6UM, GE, Lens D38.1*5 High precision silicon mirror
2.0um， CAF2， Platform lens

ICC has extensive experience in applying lenses to F-THETA, providing more than 3000 sets of lens sets each year. Covers wavelengths of 355/532/633/1064/2050 / 9.6um / 10.6um, etc. Materials can be BK7, quartz, calcium fluoride, sapphire, zinc selenide, ZK8 and other glass and crystal materials.
ICC has metal CNC lathes, single-point diamond lathes, 3D imaging instruments, ZYGO interferometers, all-European eccentricity instruments, Shimadzu and Thermo Fisher spectrophotometers to ensure that all products shipped from the factory are supported by data and can guarantee the supply cycle of items .