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Product Announcement

oap mirrors

12 Feb 2024

At Avantier Inc. we produce high-performance off-axis parabolic mirrors for many applications.  A wide variety of coating options are available for these mirrors, including protected gold, protected silver and protected aluminum. For visible and infrared use, protected aluminum is usually a good choice.  We can provide SM-threaded, unthreaded, or post-mountable adaptors for any axis mirror in stock.

Factory Standards



Diameter tolerance

+0, -0.2mm

Focal length tolerance

+/- 1 %

Off-axis distance tolerance

+6, -0mm

Surface accuracy

1/10 lambda RMS

Surface Quality


Off-Axis Parabolic Mirror

An off-axis parabolic mirror is a specialized optical mirror cut from a larger parabolic mirror. Parabolic mirrors collimate light, and an off-axis parabolic (OAP) mirror will do the same, and can also focus incident collimated light to a point. At Avantier Inc, we excel in delivering custom off-axis parabolic mirror design and manufacturing solutions for a wide range of applications

OAP mirrors are smaller than parabolic mirrors and are easier to incorporate into complex optical systems with minimal obstruction. Their small footprint and unique shape causes the mirror’s focal point to be readily accessible.

By definition, an OAP mirror is cut from the parent parabola at an off-axis: it is not centered on the parent’s optical axis. Because of this, the optical axis of the derivative mirror will be displaced from the optical axis of the parabolic mirror. The focal point, however, will be the same.

If you are looking for stock Off-Axis Parabolic Mirrors, visit Stock – Off-Axis Parabolic Mirrors.

1100 US 22
North Plainfield
New Jersey
United States
Tel: 732-321-6915
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