SLSQ-25.4B-70N 25.4 mm Dia. x -69.7 mm FL; Double-Concave Lens Uncoated

The SLSQ-25.4B-70N is a high-quality, double-concave lens offered by OptoSigma. This lens, designed for use in a wide range of optical applications, boasts a diameter of 25.4 mm and a focal length of -69.7 mm, making it a versatile choice for many setups.

The lens is made from fused silica, a material known for its excellent optical properties, including a low coefficient of thermal expansion and high resistance to thermal shock. This makes the SLSQ-25.4B-70N suitable for use in environments with varying temperatures.

The lens's geometry is characterized by its concave-concave shape, with a thickness at the edge of 4.5 mm and a center thickness of 2 mm. The inner and outer radii are both 0, indicating a symmetrical design. The back focal length of the lens is -70.4 mm.

This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, this also means that it can be easily integrated into existing optical systems without worrying about compatibility issues with existing coatings.

The SLSQ-25.4B-70N is currently in stock and available for immediate purchase. For more information, including detailed specifications and purchasing options, please refer to the vendor's website.