Optical Coating

Coatings available in our three facilities, China, Europe and the US

Anti Reflective, Protective DLC, Beam Splitters and Spectral Filters

Over a dozen PVD and CVD coating chambers

Overview

From Ultraviolet and Visible, to Near, Mid and Long Wave Infrared, LightPath offers a broad variety of deposition technologies allowing us to create custom coating solutions for the most demanding applications. LightPath utilizes multiple coating processes and technologies including thermal resistance and electron beam Physical Vapor Deposition (PVD), Ion Assisted Deposition (IAD), Chemical Vapor Deposition (CVD), and Plasma Enhanced Chemical Vapor Deposition (PECVD) to cover a wide range of design solutions over many different types of substrates.

We are experts in optical thin film designs, with extensive experience designing virtually every type of thin film coating (antireflection, high reflection, partial reflection, bandpass, protective, etc.). We provide broad expertise with applications in the Visible, SWIR, MWIR, LWIR, and multiband hyperspectral regions as well as protective Diamond Like Carbon (DLC) anti reflecting coatings. LightPath is vertically integrated in all three of its global facilities including in-house coating capabilities in each manufacturing location.

Our Standard Coatings

Visible and Near Infrared (NIR) Coatings

Anti Reflective Coatings

Spectral Range

Materials

350-500nm

DLak6, Ellal12

400-600nm

ECO550, DZK3, DZlaF52LA, DLak6, Ellal12

600-1050nm

DZK3, DZlaF52LA, ECO550

700-900nm

DZK3, DZlaF52LA, ECO550

Short Wave Infrared – SWIR

Anti Reflective Coatings

Spectral Range

Materials

1.5-5um

BD6, ZnSe, ZnS, Si, BD2, AMTIR-1, BaF2, CdTe, CaF2

1.5-3um

BD2

1.5-1.8um

Si, S-TIM2, ZnS, ZnSe

1.8-3um

BD2

1.050-1.600um

 DZK3, DZlaF52LA, ECO550

1.300-1.700um

 DZK3, DZlaF52LA, ECO550

Beam Splitter Coatings

Spectral Range

Materials

1.5-5um @ 45 Deg

CaF2

2-5um @ 45 Deg

Sapphire

Mid Wave Infrared – MWIR

Anti Reflective Coatings

Spectral Range

Materials

3-5um

Ge, BD6, BD2, Si, ZnS, ZnSe, IRG-202, GASIR-1, Sapphire, GaAs

3-5µm HDAR/HEAR

Ge, Si

2.0-6.0um

Si

1.064µm & 3-5µm

BD6

Protective DLC

Spectral Range

Materials

3-5um

Ge, Si, BD6, BD2

Beamsplitter Coatings

Spectral Range

Materials

3-5µm @ 45deg

Ge, Si

2-8um @ 45 Deg

CaF2

Long Wave Infrared (LWIR)

Anti Reflective Coatings

Spectral Range

Materials

5-11um

Ge, ZnS, ZnSe

8-12um

Ge, GaAs, ZnS, ZnSe, BD2, BD6, AMTIR-1, IRG-202, IRG-24, IG4, GASIR-1

8-12µm HDAR/HEAR

Ge, ZnSe

7-14um

BD6

7-10um

Ge

7.5-13um

CdTe

14-16um

Ge

Protective DLC

Spectral Range

Materials

8-12um

Ge, BD2, BD6

Beamsplitter Coatings

Spectral Range

Materials

8-12um @ 45 Deg

Ge

7-14um @ 45 deg

ZnSe

MultiSpectral Coatings

Anti Reflective Coatings

Spectral Range

Materials

2-13um

Ge, ZnS, ZnSe, BD6, BD2

2-14um

ZnSe

3-12um

ZnSe

5-8um

Ge, BD2

1.5-5µm & 8-14µm

ZnS

6.5-6.9um

ZnSe

1.0-12um

ZnSe

0.633µm & 1-12µm

ZnSe

1.5-5µm & 8-14µm

ZnS

1.064µm & 3-5µm

BD6

Beam Splitter

Spectral Range

Materials

2-8um @ 45 Deg

CaF2 (50/50)

Laser Line Coatings

Anti Reflective Coatings

Spectral Range

Materials

3.39um

Ge, ZnSe

0.633µm & 3.39µm

ZnSe

0.633µm & 3.39µm & 10.6µm

ZnSe

1.064µm & 1.570µm

ZnSe

1.95-2.15µm & 3.9-4.1µm & 4.5-4.7µm

ZnSe

0.633µm & 1-12µm

ZnSe

1.064µm & 3-5µm

BD6

DLC Coating on Chalcogenide

Diamond Like Carbon (DLC) coating is in use in many industries, including optics, due to its high hardness and low friction. While DLC had been in use with Germanium and Silicon optics for a while, it is only recently that it had been successfully applied to amorphous materials such as Chalcogenide Glass. Through our expertise in the Chalcogenide materials, fabrication process and coatings, Lightpath had been bale to design DLC coatings that can be applied to our Chalcogenide lenses and windows. Our DLC coatings, applied using a highly customized CVD coating chamber, have passed all MIL spec qualification requirements, including full salt solubility for 24 hours.

Image Gallery

AR Coatings on Square Windows

DLC and AR Coating in Riga, Latvia Facility

Coating Chamber

Coating ‘Pie’

Ultrasonic Cleaning

Our Coating Facility in China

AR Coating Chamber in Orlando, Florida Facility

DLC Coating Chamber Operation

Lens Inspection

Germanium Optics in Ultrasonic Cleaner

AR Chamber Operation

Germanium Optics for Ultrasonic Cleaner

Coating ‘Pie’ Loading

In-House Abrasion Testing

In-House Salt Fog Testing

In-House Environmental Chamber