2.0mm thickness edge black printed window glass, protective optical window for laser instruments

  Product Descriptions：

What are the advantages of using interference filters in laser lights?

Interference filters offer several advantages for laser lights, including high laser damage resistance, high energy efficiency, stable color performance, high color purity, and long service life.

• First, interference filters use multiple dielectric coating layers to reflect unwanted wavelengths instead of absorbing light energy. This design reduces heat buildup and improves resistance to laser damage, making the filters less likely to fade or burn under high-power laser illumination.
• Second, these filters allow target wavelengths to pass through while reflecting unwanted wavelengths. This selective filtering improves light efficiency and color purity. Since inorganic coating layers determine their spectral performance, interference filters generally maintain stable optical properties over time and provide consistent performance across production batches. These features make them particularly suitable for high-power laser lights and RGB laser beam combining and splitting systems.

However, interference filters are sensitive to the angle of incidence, which can affect their spectral performance. Therefore, installation at the designed angle of incidence is recommended. Proper measures should also be taken to manage reflected stray light.

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Three-aperture oval screen-printed protective window with back adhesive, for laser devices and instruments

Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical vacuum technology that apply depositing nano-materials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment, which the coating layer is firm and has good tightness and small bandwidth drift. The company have been focus on optical coating for more than 17 years ,and the company offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass Filters, Shortpass Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.

Remark：Because the interference type filter varies its spectral performance at different angles, the spectral parameters usually determine its appearance color; moreover, the pictures in this link may originate from various shooting angles, so the actual color of the parts should therefore refer to the final spectral parameters required.