49-277 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=15mm VIS 0° 425-675nm

The 49-277 is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens is specifically designed for use within the visible light spectrum, spanning from 425 to 675 nanometers. The lens boasts a 5 mm diameter and an effective focal length (EFL) of 15 mm, making it suitable for a wide range of optical applications.

The lens is composed of two distinct materials, N-BAF10 and N-SF10, both from the reputable Schott glass catalog. These materials have been carefully selected to minimize chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. The achromatic design ensures that the lens focuses both red and blue light to the same point, providing sharper images and more accurate color reproduction.

The 49-277 lens features a multifaceted geometry, with a center thickness of 1.55 mm and edge thickness of 2.22 mm. The lens curvature is also precisely engineered, with radii of 10.67 mm and -6.46 mm for the first and second surfaces, respectively, and a -53.57 mm radius for the third surface. This complex geometry allows for fine-tuned optical performance.

The lens is coated with Edmund Optics' standard Vis-0 coating on both the front and back surfaces. This coating is designed to enhance the lens's performance within the visible light spectrum, further optimizing its use in a variety of applications.