The 542-7207 is a Plano-Concave Spherical Lens, sourced from EKSMA Optics, a renowned vendor in the optical components industry. This lens boasts a diameter of 25.4 mm and a center thickness of 2.5 mm, making it a compact yet robust option for various applications.
The lens's focal length is -75 mm, indicating its concave nature. This negative focal length is crucial in understanding the lens's light bending properties, making it ideal for specific optical systems where light needs to be diverged.
The lens is crafted from Barium Fluoride (BaF2), a material with a high transmission range, extending from the ultraviolet (UV) to the infrared (IR) region. This broad transmission range makes the lens versatile, suitable for a wide array of applications.
Notably, the lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While this may limit its performance in certain applications, it also means that the lens is more cost-effective and suitable for applications where coatings may not be necessary.
For more information and to check the current stock status, you can refer to the vendor's website through the provided weblink.