Our skilled production team is experienced with the preparation and coating of all types of glass including high stain, temperature sensitive, high expansion, high and low index, gradient index (GRIN) and glass sealed in metal housings or ferrules. Thin film designs are deposited with Ion Beam Sputtering (IBS), Leybold APS, Ion-Assisted E-beam (IAD) and thermal source deposition systems to ensure that the coatings meet your required optical performance, laser damage threshold and environmental stability. ECI’s design team is available to work with you to identify the optimum design for your system. Sample designs can be generated to illustrate the theoretical coating performance for your particular angle of incidence, substrate, incident medium and wavelength region.

The links below highlight the many types of optical and conductive coatings available for your Glass Substrates:


Optical Coating for Glass Substrates infographicAR Coatings (240nm – 2500nm)

Narrow, broad, dual band and super low ARC designs suitable for Precision Glass Optics, Ultra Thin Wafers, Temperature Sensitive Glass and many others. In accordance with MIL-C-675, MIL-C-14806A and MIL-C-48497.
Typical Glass AR (Anti-Reflection) Designs


Custom Optical Filters (240nm – 2600nm)

Bandpass, Broadband Pass, Long Wave & Short Wave Pass, Dichroic, Rejection, Edge Pass and Neutral Density Filters. Optical Filters deposited with Ion Beam Sputtering Leybold APS and IAD Deposition. Designs meet or exceed the environmental requirements of MIL-C-48497.
Typical Custom Optical Filter Designs


Metal Mirror Coatings (Ultraviolet to far Infrared)

ECI deposits protected and enhanced Metal Mirrors. Designs include Aluminum, Gold and Silver for front and back surface reflections. In accordance with MIL-M-13508C.
Typical Metal Mirror Designs


Dielectric Mirror Coatings (248nm – 2500nm)

Highly reflective low loss Broadband Dielectric Mirror Coatings meet the environmental and durability requirements of MIL-C-48497 and MIL-F-48616.
Typical Dielectric Mirror Designs


Laser Mirror Coatings (248nm – 2500nm)

Highly reflective low loss Laser Dielectric Mirror Coatings meet the environmental and durability requirements of MIL-C-48497 and MIL-F-48616.
Typical Laser Dielectric Mirror Designs


Transparent Conductive Coatings

ITO (Indium-Tin-Oxide), Transparent Gold, and other Hybrid Transparent Conductive Coating Designs for Military, Medical Displays, Security and Aerospace applications that demand environmental stability. Coatings are deposited to customer specified ohms per square. Custom Anti-Reflective coatings are available.
Typical Transparent Conductive Designs


Beamsplitter Coatings (240nm – 2000nm)

Dielectric and Metal Beamsplitters designed to separate incoming light into two components consisting of reflected and transmitted beams. All coatings are optimized to meet customer specific requirements including ratio of reflected versus transmitted light, AOI, wavelength region, polarization and incident medium.
Typical Beamsplitter Designs


Attenuation Coatings

Thin film coatings designed to reduce or remove excess energy in an optical system.
Typical Attenuation Designs


Metal and Dielectric Depositions

Selection of coating materials deposited to your specified target thickness.
Typical Metal and Dielectric Deposition Designs



Cr, Ti, Au, Pt and other metal designs for deposition onto glass and fiber substrates for low- temperature soldering processes.
ECI #415


Contact our design team to discuss your specific Optical Coatings for Glass Substrates application!