Two refracting surfaces of optical lens are both spherical or one is spherical and the other is flat. Astar can supply standard and high-precision spherical lens in a variety of shapes, sizes, focal lengths on a wide spectrum.
Two refracting surfaces of optical lens are both spherical or one is spherical and the other is flat.
A-Star can supply standard and high-precision spherical lens in a variety of shapes, sizes, focal lengths on a wide spectrum.
The structure of lens can be Plano-convex, Plano-concave, Bi-convex, Bi-concave, Meniscus. They are widely used in medical, industry and spaceflight etc.
Double-Convex Lenses available for high performance in the Ultraviolet, Visible, or Infrared, are available at A-Star Optics.
Material | Bk7,K9,Sapphire ,K9,CaF2 crystal,ZnSe ,Fused silica |
Dimension | 2-200mm |
Dimension Tolerance | 2-200mm |
Thickness Tolerance | ±0.1mm |
Flatness | Lambda /10 |
Surface Quality | 60/40 |
Clear Aperture | >90% |
Chamfer | 0.25 mm at 45 degrees |
Coating | High efficiency Multi-layer coating |
BK7 Double-Convex Lenses ,Fused Silica Double-Convex Lenses, China Double-Convex Lenses, Double-Convex Lenses Manufacturer
Generally optical lenses are made of two curved surfaces, mostly spherical. If those surfaces concave outside the plane of the lens, then the lens is called as convex lens. A convex lens can converge a beam of parallel rays to a point on the other side of the lens. This point is called as focus of the lens and its distance from the Optical Center of the beam is called the focal length. The radii of curvatures R1 and R2 of the spherical surfaces and the focal length of the lens ‘f’ are connected by an approximate equation, called lens makers equation.
With years of export experience along with excellent quality, advanced services and competitive prices, A-Star has won numerous customers’ trust and support.