h k9l bk7 positive meniscus lens

Place of Origin:China

Brand Name:Advance

Model Number:as requirements

...bk7 Glass Clear Meniscus LED Optical Lens Meniscus lens is a crescent lens formed by two spheres with small radius of curvature and little difference in value.There is an achromatic difference when choosing the appropriate thickness.Meniscus lens is concave-convex lens.The lens has an convex mirror and an concave mirror face.If the radian outward is greater than the radian inward, the lens has a positive...

Brand Name:STAR OPTIC

Model Number:MEN

Place of Origin:Wuhan, China

... lens, a positive meniscus lens will shorten the focal length and increase the numerical aperture (NA) of the system without introducing significant spherical aberration. When used to focus a collimated beam, the convex side of the lens should face the

Brand Name:Wuhan Siwer Optics

Place of Origin:Wuhan,China

...Double-Convex Lenses have positive focal lengths, along with two convex surfaces with equal radii. Aberrations will increase as the conjugate ratios increase. DCX Lenses are used in a range of ...