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Home / Product / Front Surface Mirrors / SEA-VIS & SEA-NIR Enhanced Aluminium Mirrors


Enhanced aluminum front surface mirrors

Special Properties

  • Enhanced reflection by dielectric overcoatings
  • Good optical performance
  • No ghosting effects in reflected image
  • High imaging performance
  • Economically priced
  • Large sizes possible

Typical Applications

  • 45°-light and laser beam deflection mirror
  • Large format front surface mirror
  • Optics for sensor technology
  • Laser bar code scanner reflectors
  • Flatbed scanners
  • Infrared optics
  • Replacement for silver coatings
  • Laser projection scanners
  • Redirecting mirror
  • Mirror for episcopes, copiers, projectors, fax machines
  • Camera mirror
  • Laser mirror
  • Optics for medical instruments
  • Cost saving replacement for gold mirrors
  • Economically priced optical mirror coatings


All of our SEA enhanced aluminum mirrors are protected by multilayer dielectric over coatings. These very thin protective coatings considerably enhance the visible reflectance compared to bare aluminum or protected aluminum metal mirrors and protect the metallic aluminum layer from oxidization.

Enhanced aluminum front surface mirror opticsThe coatings are vacuum deposited on a high-grade glass substrate material. Because the optically effective mirror coatings are located directly on top of the glass substrate, an excellent image quality is achieved by our enhanced aluminium mirrors. A ghost image or a doubled laser beam, which are inherent to the functional principle of backside coated mirrors, is completely avoided with our front surface coated aluminum mirror optics.

Both, the SEA-VIS and the SEA-NIR enhanced aluminum metallic coatings show a good resistance to heat, humidity and abrasion, which is much better than what can be achieved with silver mirrors. The mirrors are economically priced optics, which have proven to be an ideal choice for projects that require good optical reflectivity performance, and a high mechanical stability at low cost. Therefore, many high volume applications are based on these aluminum coated mirrors. The SEA-NIR near infrared aluminum mirror coatings can be a cost-effective alternative to gold mirrors, when used for the NIR or IR wavelength range.

For ultraviolet applications, we manufacture our protected aluminum SEA–UV mirrors. Both, the SEA–VIS and the SEA–NIR enhanced aluminum mirrors, can be used as laser beam mirrors for up to medium laser beam powers. Please contact us and we will check whether our standard SEA mirror coatings can be used with your laser application without modifications.

We manufacture all of our metallic aluminum front surface mirrors up to large dimensions. The dielectric over coatings can be optimized and modified to enhance the reflectance for special wavelengths. If you need a custom coating design, please use our coating enquiry page. If you have any special question, please contact our engineers for support in the design of your specialized enhanced aluminium mirror optics.

You can find further interesting information about these mirrors on our "Frequently Asked Questions" (FAQ) page for our Enhanced Aluminum Front Surface Mirrors. more...


To quickly request a quotation for a standard SEA-VIS or SEA-NIR enhanced aluminium mirror optics at individual dimensions, please click the respective button below:


Request a SEA-VIS Quote

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NEW! 48h Express Optics Service available


Request a SEA-NIR Quote

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NEW! 48h Express Optics Service available


You might wonder, why you will not find a shopping cart anywhere on our website. The simple answer is: We just do not need a shopping cart. The typical lead time for custom sized mirrors and many other optics is less than a week, even at higher quantities, because our company has specialized in rapid manufacturing of custom mirrors and optics. We even offer a new 48h Express optics service for a manufacturing and delivery of optics within only 2 working days. This is shorter than it usually takes just to receive a quotation within the optics industry. It is even faster than many companies limited to catalog optics can ship their stock optics! So, there is no need for a shopping cart and predefined catalog sizes.




SEA mirror coatings, reflectance curves

Click to show SEA-VIS and SEA-NIR mirror reflectance


Product Codes

  • SEA-VIS (layer-optimized for visible light reflectance)
  • SEA-NIR (layer-optimized for infrared light reflectance)

Substrate Material


  • Enhanced Aluminum
    (Aluminum protected and enhanced by dielectric thin film coatings on top of the aluminum layer)


SEA-VIS mirrors
  • Reflectance > 94 % at 550 nm at 45°
  • Average reflectance > 93 % at wavelength
    450-650 nm at 15°-45°
  • Average reflectance > 92 % at wavelength
    550 nm for S&P-polarization at 15°-45°
  • Other reflectances, incident angles, wavelengths, or laser optimized coatings on request
SEA-NIR mirrors
  • Average reflectance > 93,5 % at wavelength
    700-1200 nm at 45°
  • Other reflectances or angles on request


  • Depending on substrate material and thickness
  • Special flatness per inquiry

Cosmetic Surface Quality

  • typ. 80-50 scratch & dig (MIL-0-13830A)
  • Other on inquiry


Standard thicknesses
(Click on desired thickness for a price quotation)

thickness (mm)
0,55 ±0,05
1,00 ±0,10
1,10 ±0,10
2,00 ±0,20
3,00 ±0,20
4,00 ±0,20
5,00 ±0,20
6,00 ±0,20
SEA-VIS mirrors at customized thickness
thickness (mm)
2,00 ±0,20
3,00 ±0,20
SEA-NIR mirrors at customized thickness


Adherence & Abrasion

  • Adherence according to MIL-C-675 C (tape test)
  • Abrasion resistant according to MIL-M-13508 C


  • up to approximately 810 mm x 1270 mm

If you need engineering support or if you need support in the design of your mirror optics, please do not hesitate to contact us.



All given details and properties are mean reference values and are not guaranteed. In addition, please consider our "Notes on technical specifications"