The 62-492-INK is a 25 mm diameter Negative Achromatic Doublet lens, sourced from Edmund Optics. This lens is specifically designed for the visible spectrum, covering a wavelength range of 425-675nm. The lens boasts an effective focal length (EFL) of -50mm, making it suitable for a variety of applications.
The lens is composed of two elements: N-BAF10 and N-SF10, both from Schott. These materials are known for their high refractive indices and low dispersion, making them ideal for achromatic lenses. The lens features a standard curve coating on both the front and back surfaces, enhancing its transmission capabilities.
The lens has a thickness of 9.06mm at the edge, reducing to 2.5mm at the center. The center thickness increases to 4.06mm when considering the 'a' dimension, providing additional structural integrity. The lens's geometry also includes inner and outer radii of 0mm, and radii of curvature of -35.51mm, 24.58mm, and 217.99mm for the three surfaces.
According to the vendor's website, the lens is currently in stock, making it readily available for immediate use. The product's web link is provided for easy reference and further details.