ZnSe Right-Angle Prisms
ZnSe right-angle prisms for infrared beam folding with custom size review, 30 degree angle control, polished working faces, and optional coating support.
Quick Specifications
Product Description
Overview
ZnSe right-angle prisms are specified for infrared beam folding, beam deviation, and compact optical path control in laser, sensing, and spectroscopy assemblies. This source set describes a custom-drawing ZnSe prism configuration with polished working faces, controlled angular accuracy, and optional coating review for application-specific layouts.
For material background, transmission guidance, and substrate selection notes, see the ZnSe material page. If you are comparing related prism geometries, you can also review our ZnSe prism category.
Why This Geometry Matters
In infrared optical systems, prism performance depends on more than basic beam folding. Engineers usually need to confirm the prism angle, dimensional tolerance, surface finish on the working faces, clear aperture, and coating target together. That is especially important when the prism is being matched to a defined optical layout rather than selected as a general catalog part.
Quick Specifications
| Parameter | Source-Based Guidance |
|---|---|
| Material | ZnSe optical grade |
| Dimensions | Available on request |
| Dimension tolerance | +/-0.1 mm |
| Prism angle | 30 degree +/- 20 arc min |
| Surface flatness | lambda/10 at 632.8 nm |
| Surface quality | 60/40 or 40/20 scratch-dig on three polished rectangular faces |
| Clear aperture | Greater than 90% of total dimensions |
| Chamfer | Less than or equal to 0.2 mm x 45 degree |
| Coating | None or custom IR / HR coating depending on design |
Typical Applications
- CO2 laser beam folding and beam handling
- Infrared camera and thermal imaging modules
- Spectroscopy optics and FTIR beam control
- Industrial sensing and automated inspection systems
Engineering Notes / Selection Guidance
The source identifies three rectangular faces as polished working surfaces, while the two triangular faces are treated differently for non-working geometry. When reviewing a custom prism, buyers should send the required angle, dimensional envelope, clear aperture, coating target, and mounting reference surfaces together. That shortens drawing review and reduces mismatch risk.

If you need quotation support, send your drawing and wavelength requirement through the contact page so the prism angle, polishing scope, and coating requirement can be reviewed together.
Key Features
Applications
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Helpful Resources