Step-shaped Circular protective window mirror for beauty instruments

Product Descriptions：

What is an optical plate protective window?

An optical plate protective window is a plate type glass component with two parallel surfaces that manufacturers carefully grind and polish. Unlike lenses or curved mirrors, it does not change the direction of light through focusing or divergence. Instead, it allows light to pass through while protecting internal optical components from dust and other environmental factors.Standard optical glass typically has an average transmittance of 85–90%. Adding an anti-reflective (AR) coating can increase transmittance up to 95%, depending on the material and coating design.Optical plate windows come in various shapes, including square, circular, oval, triangular, and stepped designs. The users can customize the shape according to specific application requirements.

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

Ultra-Clear Optical Glass, AR Coated, Protective Lenses for Advanced Optical Systems

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.