37-426 25mm Dia. N-SF6 Precision Aspheric Lens; EFL=15mm; NA=0.83 Uncoated

This is the 37-426 model from Edmund Optics, a 25mm diameter precision aspheric lens with a high numerical aperture (NA) of 0.83. The lens is made from N-SF6 Schott, a high-quality optical glass known for its excellent transmittance and low autofluorescence.

The lens features an effective focal length (EFL) of 15mm, making it suitable for applications that require a compact, high-performance optical system. The aspheric design of the lens helps to reduce spherical aberration, improving the overall image quality.

The lens is uncoated, which means it does not have any anti-reflective coatings. While this may result in a higher reflectance at the air-glass interfaces, it also means that the lens is less susceptible to damage from environmental factors such as moisture and dust.

The lens has a center thickness of 10.4mm and an edge thickness of 3.31mm. The front surface of the lens has a radius of curvature of 12.078mm, while the back surface is flat. The lens also has a high NA of 0.83, which allows for a wide angle of view and high light-gathering capability.

This lens is currently in stock and can be purchased directly from the Edmund Optics website. With its high-quality materials, advanced design, and excellent performance, this lens is an ideal choice for a wide range of optical applications.