The 63-633 is a high-quality double-convex lens, 10mm in diameter and featuring a focal length of 20mm. This lens is sourced from Edmund Optics, a renowned vendor known for their extensive catalog of optical elements. The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility.
The lens boasts a double-convex geometry, characterized by two spherical surfaces that curve outwards. This design is particularly useful for imaging applications as it minimizes spherical aberration, a common issue in optical systems. The lens has an inner radius of 0mm and an outer radius of 0mm, indicating a uniform thickness across its diameter.
The 63-633 lens is coated with EDM NIR-I std curve on both the front and back surfaces. This coating is specifically designed for the near-infrared (NIR) spectrum, enhancing its transmission capabilities within the 600-1050nm range. This makes the lens ideal for applications that require efficient transmission of NIR light, such as thermal imaging, spectroscopy, and night vision.
The lens has a thickness of 1.25mm at the edge and 2.5mm at the center, providing structural rigidity while maintaining a low profile. The effective focal length (EFL) is 20mm, a value that remains constant regardless of the lens's aperture or the distance between the lens and the image sensor.