Advanced Coating Technologies

Coligh Optics is a leading manufacturer of optical thin film coatings from EUV to 30μm, offering a wide range of solutions to meet the needs of their customers. We are specialize in utilizing three different thin film coating techniques: Sputtered coating, Ion Assisted Deposition (IAD), and Vacuum coating.

Coligh Optics utilizes the sputtering technique to produce optical glass filter coatings, particularly high precision narrow bandpass filters, that meet stringent standards for stability, uniformity, and film thickness. This technique allows for the precise deposition of thin films of material onto a substrate, resulting in coatings with exceptional optical properties.

Sputtering is a common method used in the production of optical filters, and it offers several advantages over other coating methods. Here are some of the advantages of sputtered coating when coating optical filters:

IAD( Ion Assisted Deposition) coating is another hard optical thin film coating technique Coligh applied. IAD is a technique that involves using a high-energy ion beam to bombard the substrate during deposition. IAD (Ion Assisted Deposition) coating has several advantages over optical filter coating.

Enhanced optical performance: IAD coatings can provide superior optical performance compared to optical filter coatings. This is because the ion beams used in IAD coatings can control the microstructure of the coating, resulting in improved spectral performance and reduced reflection.

Vacuum coating is a versatile technology that can be utilized to create a variety of filter types for different applications. For instance, longpass filters, shortpass filters, dichoric filters, and anti-reflection coatings may require less strict requirements, and therefore, we continue to utilize vacuum coating for these applications.

Coligh Optics has a wealth of experience in utilizing these three thin film coating techniques to produce optical glass filter coatings with exceptional quality and performance. We work closely with their clients to determine the best coating solution for their specific needs, ensuring that they receive a product that meets their requirements and exceeds their expectations.