Product Description

l Optical Component Material: ZnSe;

l Operating Wavelength: 4.5 μm-7.5 μm(AR Coating);

l Application: imaging, beam expander or reducer, convergence;

     The plano-convex lenses from Tuniu feature one convex surface and one flat surface, providing positive focal lengths typically used for beam reduction, focal length shortening, or imaging magnification applications. To minimize spherical aberration, when a plano-convex lens is used for focusing a collimated beam, the beam should be incident on the curved surface; when collimating a point source, the beam should be incident on the flat surface. ZnSe plano-convex lenses from Tuniu are coated with 4.5–7.5 μm AR coating on both surface to reduce the reflectivity of the lens. ZnSe is selected for its high transmittance across mid-to-far infrared spectra, with a refractive index of approximately 2.89 in the 0.5–15 μm range. Its low absorption at 10.6 μm makes it the preferred material for high-power CO₂ laser optics, while its broad transmission band also enables widespread use in various optical systems. Note that ZnSe is toxic, wearing gloves when handling and wash hands after use. All lenses undergo precision machining and strict quality control, ensuring Tuniu delivers high-quality optical products at competitive prices.

Plano-Convex Lens, ZnSe, AR Coating: 4.5μm-7.5 μm·

l Pre-mounted mechanical housing or Unmounted

     The plano-convex lenses from Tuniu feature positive focal lengths and are commonly used for imaging or beam collimation applications. Manufactured using RoHS-compliant ZnSe glass, a material frequently employed in high-quality optical components, these lenses are particularly suitable for mid-infrared and far-infrared applications. All circular lenses from Tuniu come pre-mounted in standard lens tubes or mounting adapters, with each mechanical component clearly marked with the product model, type, diameter, and focal length for quick parameter identification.