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First Surface Mirror

Optical grade first surface mirror designed for science and engineering.
Precision cutting, fast shipping, and outstanding quality at your fingertips.

First Surface Mirror

Optical grade first surface mirror designed for science and engineering.
Precision cutting, fast shipping, and outstanding quality at your fingertips.

Discover The Mirror

FSM First Surface MirrorOptical Mirror
We stock a large inventory of first surface mirrors and are standing by to cut them to the size you specify. Use our online calculator to order or call for pricing and ordering. We ship fast, usually same or next day.

A first surface mirror, also known as a front surface mirror, is an optical mirror which provides superior accuracy for engineering and scientific applications. Unlike a standard mirror, which has the coating on the back side, a first surface mirror provides a true reflection with no double image.

FSM Advantages

first-surface-mirror-how-it-works-illustrationSecond Surface Mirror (Standard Mirror)

First surface mirrors have an aluminum mirror coating on the face of the glass that maximizes the amount of light reflected, minimizes distortion, and prevents a double image, also known as “ghosting.”

Enhanced Aluminum Wave Chart

The enhanced aluminum mirror coating is optimized for the visible spectrum. A dielectric overcoat prevents scratching and oxidation. Strict standards ensure industry leading quality.

"Discover why scientists & engineers switch to us."

The engineers and scientists we work with to meet project deadlines don’t have time to waste waiting for other manufacturers to fabricate their mirrors, crossing their fingers that the glass will be high quality and arrive unbroken. We keep a large inventory of optical mirrors on hand, and have glass experts standing by to immediately cut and ship them.

In addition to supplying the highest grade coatings, we also have strict quality standards to make sure mirrors are precision cut, double checked, and packaged extremely carefully. Take advantage of our expertise, wide selection of optical mirrors, extensive technical documentation, guaranteed quality, and inexpensive product samples.

Product Options


1λ first surface mirrors provide optical quality at an affordable price.

quarter wave

λ/4 flatness mirrors offer a polished substrate for higher accuracy.

Eigth Wave First Surface Mirror

λ/8 is superior for equipment using a high magnification.

Chemically Strengthened First Surface Mirror

Chemically hardened first surface mirrors offer superior strength.

UV Enhanced FSM offers superior reflection for 10-400nm light.

acrylic fsm

Shatterproof & easy to cut. Hobby grade reflection for lighting effects.

Product Portfolio

Questions? We've Got Answers.

Do you ship outside of the United States?

Yes, we ship worldwide via FedEx and shipping is automatically calculated when you check out. Duties and taxes are billed separately on delivery.

Do you sell samples?

Yes, for your convenience we sell mirror samples (limit 1 per customer).

What's the largest size you can make?

Maximum Sizes:

1/4″ Glass: 70.886″ x 52.756″
1/8″ Glass: 1/8″
1/4″ & 1/8″ Acrylic: 49″x97″

How do you prevent breakage in shipping?

We carefully package and fully insure all of our shipments. If it should arrive broken, please send us pictures of the box and broken glass and we will ship you a replacement.

Are the mirrors sharp?

We carefully sand the edges and corners with a wet belt sander to take off the sharp edge.

How should I clean them?

To maximum the life of the mirror coating, we recommend isopropyl alcohol 50% solution (lens cleaner). The best wipes for cleaning are Kimwipes, which is a specialty item you may not find in local stores.

How accurate is your cutting?

We typically cut to +/- 1/16″ (1.5mm) unless added accuracy is requested.

Why use aluminum instead of silver or gold?

Aluminum provides the best reflection, durability, and quality for most applications. We receive a lot of requests for gold and silver first surface mirrors, and can manufacture them on request.

Silver coatings theoretically have good reflectance wavechart, but because silver is so reactive to the air and chemicals, often the real life results don’t measure up to the theoretical specification.

Gold coatings are non-reactive and have good reflectance across a large spectrum, but because gold is so soft it’s nearly impossible to clean the mirrors without damaging them. Gold coatings are also several times as expensive as aluminum, so they are generally cost-prohibitive for most applications.

Our team of engineers are standing by to field your questions. We have the expertise to quickly and accurately answer any questions you have.

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