Differential Plane Mirror Interferometer (DPMI) Reference Mirrors

Differential Plane Mirror Interferometer (DPMI) Reference Mirrors - View 3

Differential Plane Mirror Interferometer (DPMI) Reference Mirrors - View 4

Differential Plane Mirror Interferometer (DPMI) Reference Mirrors - View 5

$646.04 ~~$1042~~ In stock

Differential Plane Mirror Interferometer (DPMI) Reference Mirrors from ZYGO are intended for use with the DPMI. These reference mirrors are offered in multiple styles to suit different configurations.

For use with the DPMI
Brand: ZYGO
Available styles: Linear, Linear Reversed, and Angular
Linear style, SKU 6191-0437-01
Linear, Reversed style, SKU 6191-0437-04
Angular style, SKU 6191-0437-02

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Customer Reviews (5.0 / 5 · 5 reviews)

Emma H. ★★★★★ Oct 22, 2026

Installing these into our DPMI setup was seamless — the mounting threads lined up perfectly with our existing hardware. The polished edge bevel makes handling them without fear of chipping much easier than our old mirrors.

Eva O. ★★★★★ Oct 21, 2026

The flatness tolerance on these mirrors is tighter than my old set, which cleaned up my interference fringe patterns immediately. Works perfectly with the DPMI setup I have, and switching configurations is straightforward.

Lily X. ★★★★★ Oct 20, 2026

Swapped between the two mounting styles for our DPMI rig and both aligned cleanly out of the box, which saved me a good hour of fiddling. The surface quality on these references is noticeably consistent across the set, and that’s exactly what I needed for repeatable differential measurements.