Black Printed Glass Window, 26mm Diameter, 0.7mm Thickness, for Laser Devices and Rangefinders

Product Descriptions：

What are the characteristics of using interference-type filters on laser lights?

Interference filters offer several advantages, including high laser damage resistance, high light efficiency, stable color, and long service life.

These filters use dielectric coatings to reflect unwanted wavelengths instead of absorbing light energy. This reduces heat buildup and helps prevent damage to the filter.

They also transmit target wavelengths efficiently while blocking unwanted light, resulting in high color purity. Their inorganic coatings provide stable color and consistent performance over time.

These features make interference filters suitable for high-power lasers and RGB laser beam combining and splitting.

Note: Interference filters are sensitive to the angle of incidence. Install them at the specified angle and manage reflected stray light properly.

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Black color, screen printing PMMA acrylic protective window

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.