High-reflectivity coatings deposited on the front surface of a float-glass substrate — minimal ghosting, accurate beam redirection, and reflectivity ≥ 94% from 400 – 700 nm.

Reflectivity ≥ 94%Enhanced Al / protected Ag / Au, 400 – 700 nm
Multiple FormatsCircular, square & rectangular; 0.5 – 3 mm thick
Laser Cutting ± 0.01 mmAny custom size, in mm or inches



First Surface Mirrors feature a high-reflectivity coating deposited on the front surface of a float-glass substrate to minimize ghosting and enable accurate beam redirection. They are available with enhanced aluminum, protected silver, and protected gold coatings for applications requiring high reflectivity from 400 – 700 nm.
These mirrors are ideal for optical path folding, beam steering, and imaging systems where the mirror is mounted at 45° to produce a 90° bend in the light path.
Offered in circular, square, and rectangular formats, they are well-suited for OEM integration, prototype builds, and general laboratory alignment setups.
With typical surface flatness of 4 – 6λ (waves) and 60-40 surface quality, they provide a cost-effective solution for applications that require reliable reflected beam performance without the added expense of precision polished substrates.
First-surface mirrors are commonly used in life sciences, metrology, semiconductor, and general photonics systems where the quality of reflected light is important.
Didn't find your exact size? Send us your inquiry — our team will get back to you with a custom quote quickly.