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USHM

IMPROVED ULTRA-STABLE HARD-MOUNTED RETROREFLECTORS (USHM)

    • Invar steel mounting for exceptional stability and accuracy. 
    • Performs well in harsh environmental applications.
    • Lighter weight aluminum mounted versions are also available.
    • Available in custom configurations and with a variety of coatings.
    • PLX is a registered ISO 9001 company

Retrorelector Selector Chart

Coating Specification Chart

 

Hollow Retroreflectors

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Invar mounted USHM, the ultimate in shock and vibration resistance.

The improved USHM solidly connects the Retroreflector to the next assembly. It is vacuum compatible, thermally stable and tailored to applications where extreme shock and vibration are a concern.

Stability and Accuracy

PLX’s improved USHM’s robust mountings and mirror technology offer properties which enable them to perform exceptionally well in critical applications and harsh conditions. USHM configurations have been utilized in military and space applications and are especially well suited for interferometers where high stability of the OPD and concentricity of the apex on the mounting thread are critical requirements. Lighter weight aluminum mounted versions are also available.

Coatings

Standard USHM mirror coatings are aluminum, silver and gold, in both bare metal and with protective overcoats. All protected PLX coatings meet MIL-SPEC durability and adhesion requirements. Unprotected metallic coatings work well for interferometric applications. Custom coatings are available.

Custom configurations for specialized applications

PLX engineers can create a custom USHM for your application. Potential variations include smaller and larger apertures, dielectric mirror coatings for high-powered lasers, and units able to withstand military and space environments.

Retroreflector Selector Chart

Cat. No. Clr. Aper. (in/mm) Beam* Deviation (arc.sec.) Exiting** Wavefront (p.v.633nm) WT.*** (gr.) 3D Models
& Diagrams
USHM-10-1 1.0/25 1.0 0.15 34 Click Here
USHM-10-2 1.0/25 2.0 0.25 34
USHM-10-5 1.0/25 5.0 0.60 34
USHM-10-10 1.0/25 10.0 1.25 34
USHM-10-30 1.0/25 30.0 3.50 34
USHM-15-05 1.5/38 0.5 0.10 73 Click Here
USHM-15-1 1.5/38 1.0 0.20 73
USHM-15-2 1.5/38 2.0 0.35 73
USHM-15-5 1.5/38 5.0 0.90 73
USHM-15-10 1.5/38 10.0 1.75 73
USHM-15-30 1.5/38 30.0 5.25 73
USHM-20-05 2.0/50 0.5 0.15 136 Click Here
USHM-20-1 2.0/50 1.0 0.25 136
USHM-20-2 2.0/50 2.0 0.50 126
USHM-20-5 2.0/50 5.0 1.25 126
USHM-20-10 2.0/50 10.0 2.50 126
USHM-20-30 2.0/50 30.0 7.00 126
USHM-25-05 2.5/63 0.5 0.25 227 Click Here
USHM-25-1 2.5/63 1.0 0.35 227
USHM-25-2 2.5/63 2.0 0.60 206 Click Here
USHM-25-5 2.5/63 5.0 1.50 206
USHM-25-10 2.5/63 10.0 3.00 206
USHM-25-30 2.5/63 30.0 9.00 206
USHM-50-05 5.0/127 0.5 0.45 855 Click Here
USHM-50-1 5.0/127 1.0 0.65 855
USHM-50-2 5.0/127 2.0 1.25 639 Click Here
USHM-50-5 5.0/127 5.0 3.00 639
USHM-50-10 5.0/127 10.0 6.00 639
USHM-50-30 5.0/127 30.0 18.0 639

Choose the coating you need:

COATING SPECIFICATION CHART

* Beam Deviation is the maximum deviation from parallelism, expressed in seconds of arc, of any single return beam from any of the 6 sub-apertures of the retroreflector, when the retroreflector is fully-illuminated.


** Exiting Wavefront is the resultant maximum peak-to-valley wavefront deformation from a fully-illuminated retroreflector, where lambda = 633nm.


*** Certain high accuracy models may be heavier than indicated here. Check with us for actual weight.

If you don't see what you need above:
Click here for a Custom Quote, specify what your application is and our engineering staff will get back to you.