LA4052 In Stock

The LA4052 by ThorLabs is a high-quality plano-convex lens that has a diameter of Ø1" and a focal length of 35.1 mm. The LA4052 is an uncoated lens that covers a wide wavelength range of 185 nm - 2.1 μm, making it a versatile choice for applications spanning from the ultraviolet (UV) to the near infrared (IR). This lens is particularly well-suited for applications requiring high transmission in the deep UV and minimal laser-induced fluorescence, as it features a UV-grade fused silica substrate. Moreover, compared to N-BK7, fused silica exhibits better homogeneity and a lower coefficient of thermal expansion.

The LA4052 can focus a collimated beam or collimate light from a point source. It is essential to minimize spherical aberration by ensuring that a collimated light source is incident on the curved surface of the lens during focusing and that a point light source is incident on the planar surface during collimation. With these considerations, this lens can achieve exceptional image quality, making it an excellent substitute for achromatic doublets when image quality is not critical. In addition, the LA4052 is the preferred lens for applications requiring an absolute magnification that is less than 0.2 or greater than 5.