Convex array lens element

concave arraysphericalmeniscus

Warranty: 3 months Customized support: OEM Place of Origin: Jilin, China Brand Name: YT Model Number: YT-Notch meniscus lens Use: Optical Structure: Singlet Shape: Spherical Size: None Weight: 0.05 Product name: Meniscus lens with notches Material: K9 Bk7 glass, fused silica Diameter: 30mm, 40mm,50mm,60mm.70mm Focal length: as requirements Surface quality: 40/20 Flatness: L/4 Centration: 3 arc minutes;30 arcsec. Tolerance: +-0.1mm Chamfer: 0.25mm*45 degree Coating: AR coating or no coating Convex concave lens-Meniscus lens Positive meniscus lenses are used to decrease the focal length of another lens while maintaining the angular resolution of the optical assembly. These lenses are commonly used to achieve tighter beam focusing when paired with another positive lens. Negative meniscus lenses are designed to minimize spherical aberration. In combination with another lens, a negative meniscus lens will decrease the NA of the system. Changchun Yutai Optics Co., Ltd. can customized high quality meniscus lens according to drawing.