Product Description

l Optical Material: CaF2

l Operating Wavelength: 200 nm-8.0 μm

l Application: Imaging, Beam Expansion

     A double-concave lens has concave surfaces on both sides with identical radii of curvature. It has a negative focal length and is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. CaF₂ is the most common material for infrared lenses, and Tuniu chooses to use CaF₂ to manufacture various lenses, primarily for infrared applications. In addition to CaF₂ double-concave lenses, Tuniu also offers double-concave lenses made of N-BK7 and N-SF11. Tuniu provides uncoated double-concave lenses with a theoretical operating wavelength range of 200 nm to 8.0 μm. All our lenses undergo fine processing and strict quality control to ensure that Tuniu delivers high-quality lens products to users at reasonable prices.

Attributes

Double-Concave Lens, CaF2, Uncoated: 200 nm-8.0 μm

     Tuniu double-concave lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Tuniu chooses to use CaF2 to manufacture various lenses. CaF2 exhibits high transmittance in both ultraviolet and infrared spectral ranges, along with an extremely high damage threshold, making it widely applicable in the excimer laser industry. All circular lenses from Tuniu come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.

Double-concave lens, CaF2, uncoated: 200 nm-8.0 μm, unmounted

     Tuniu double-concave lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Tuniu chooses to use CaF2 to manufacture various lenses. CaF2 exhibits high transmittance in both ultraviolet and infrared spectral ranges, along with an extremely high damage threshold, making it widely applicable in the excimer laser industry. All circular lenses from Tuniu come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.