Precision substrate for collimating mirrors in optical systems, providing dimensional stability and surface quality for accurate light reflection.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Parallelism | < 5 arcseconds | |
| Surface Quality | 20-10 scratch-dig per MIL-PRF-13830B | |
| Surface Flatness | λ/10 to λ/20 (at 632.8 nm) | |
| Surface Roughness | < 5 Å RMS | |
| Thickness Variation | ±0.1 mm | |
| Diameter/Size Tolerance | ±0.05 mm | |
| Thermal Expansion Coefficient | < 1×10⁻⁶/K (for precision applications) |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
An optical component that converts divergent or convergent light into parallel rays within a spectrometer.
A precisely controlled reflective optical component that directs and steers laser or light beams in scanning systems.
A precision optical component that uses galvanometer technology to rapidly steer laser beams by rotating a small mirror.
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Fused silica and Zerodur offer the lowest thermal expansion (<0.1×10⁻⁶/K), ideal for stable environments. Borosilicate glass provides good balance of stability and cost for most industrial applications.
Substrate imperfections directly transfer to the reflective surface, causing wavefront errors, beam divergence, and reduced collimation accuracy. Surface flatness below λ/10 is critical for precision applications.
Yes, aluminum with nickel plating is common where weight or thermal conductivity matters, but requires careful thermal management due to higher expansion coefficients.
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