Negative Focal Lengths for Beam Expansion or Light Projection Applications MORE Plano-Convex (PCX) and Simple Lens Kits Simple Lens Kits Include PCX, DCX, PCV, and DCV Lenses MORE ISP Optics Calcium Fluoride (CaF2) Plano-Concave (PCV) Lenses Clearance Low Index of Refraction MORE VIS-EXT...
Cylindrical Lens Aspherical Lens Bi-concave lens has a negative focal length and two concave surfaces with identical radii. Common Specification MaterialBK7/Fused Silica Dimension Tolerance+0.0/-0.1 mm Thickness Tolerance± 0.1 mm Paraxial Focal Length± 2% ...
Plano-Concave Lens These lenses have one flat surface and one concave surface. They have a negative focal length and are used to diverge incoming light, or to increase focal length in an existing optical system. They can be used in beam expanders and projection systems.Diameter Dia. Tolerance...
Double-Concave Lenses, also known as Bi-concave Lenses, are common optical components classified as negative spherical lenses due to their negative focal length. Featuring a symmetrical geometry, they exhibit concave spherical
1) Double concave lens is also called diverging lens, negative spherical lens. The focal length of a concave lens is the distance from the focal point to the center of the lens. The larger the radius of the lens, the longer the focal length. If it is a thin len...
A Bi-concave Lens consists of two inwardly curved surfaces and focal length is negative. It is often used to increase focal length and divergence of light. It can be used in Laser Beam Expanders, Optical Character Readers, Tolerances and Projection Systems. Boxin selects the preferred material...
Plano-concave glass lenses are manufactured with one concave surface and one plane surface. These lenses have negative focal lengths. Plano-concave lenses diverge incident light that is collimated. They form virtual images which are seen through the lens. They are often used to increase focal ...
Since a typical biconcave or double concave lens has two concave sides, it also has two foci. The focal length, f, is the distance from the focal point and the center of the lens. A concave lens has a negative focal length, thus it is also known as a negative lens. Lastly, the ...
A biconcave lens, also named double concave lens, is usually made of flint glass and used for beam divergence. It's focal length is negative but the parallel incident ray diverges outward. The two sides of the biconcave lens curvature radius can be equal or not. Com...
The plano concave lens is negative spherical lens, the lens is thinner in the middle and thicker at edges, and its surface is sunken inward, hence the name concave lens. The concave lens has a divergent effect on light. When parallel light passes through the concave lens, the light diverg...