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(Total 12 Products for What Is A Concave Lens)
Function of concave lens optical
With two concave surfaces, biconcave lenses have negative focal length, causing collimated incident light to diverge, and they are ideal for expanding the focal length of an optical system. Bena’s biconcave lenses are offered with various materials, including UV Fused silica, ZnSe, Silicon, Ge, CaF2, MgF2, N-SF10,...
Double-Concave (DCV) Lenses have two inward curved surfaces and a negative focal length. They are used for image reduction and to spread light. Double concave lens is similar to flat concave lens. The focal length is negative, but the light incident in parallel diverges outward. The curvature radii of the two sides of...
Double-Concave (DCV) Lenses have two inward curved surfaces and a negative focal length. They are used for image reduction and to spread light. Double concave lens is similar to flat concave lens. The focal length is negative, but the light incident in parallel diverges outward. The curvature radii of the two sides of...
The principle of geometric drawing of biconcave lens imaging is the same as that of convex lens. The top of the object is also regarded as two straight lines: one is parallel to the main optical axis, deflects into divergent light after passing through the biconcave lens, and returns the refracted light to the main...
Double-Concave (DCV) Lenses have two inward curved surfaces and a negative focal length. They are used for image reduction and to spread light. Double concave lens is similar to flat concave lens. The focal length is negative, but the light incident in parallel diverges outward. The curvature radii of the two sides of...
Optical dispersive prism optical
Altechna wedge prism, which diverts light to the thicker part. By selecting the appropriate wedge, it is easy to create beam deviations without affecting other beam parameters. If two wedges are used close to the inclined surface, a continuous change in beam deviation can be produced by reversing the wedges. It turns...
The variant of pentaprism is roof pentaprism, which is usually used in monocular camera. In this case, because the image projected on the fuselage will rotate 180 ° after the lens is focused, the light beam reflected from the plane mirror to the pentaprism after the focus also needs to change the left-right...
The chemical properties of BK7 are very stable, so it possesses scratch resistance and corrosion resistance. Meanwhile special grinding and polishing processes are not required, thereby reducing manufacturing costs. BK7 has a high degree of purity and homogeneity. It is nearly free of bubbles and inclusions. The BK7...
Zerodur Glass Ceramics Aspheric Lenses
Bena’s aspheric lenses are available either with or without anti-reflective coating. The surface of an aspheric lens is designed to eliminate spherical aberration in a range of applications, including imaging, laser focusing applications and bar code scanner. Bena provides aspheric lenses with different materials. In...
Fused Silica Plano Convex Lenses
Fused Silica Plano Convex Lenses Plano Convex (PCX) Lenses
have a positive focal length, making them ideal for collecting and focusing
light in multiple imaging applications. Bena’s plano convex lenses are available
with various substrates, including Fused Silica, N-BK7, Silicon, N-SF10, Zinc Selenide,
Ge, Calcium...
UV Fused Silica Biconcave Lenses
UV Fused Silica Biconcave Lenses With two concave surfaces, biconcave
lenses have negative focal length, causing collimated incident light to
diverge. and they are ideal for expanding the focal length of an optical
system. Bena’s biconcave lenses are offered with various materials, including UV
Fused silica, ZnSe,...
Right Angle Prisms are generally used to bend light, reflect light and for image displacement. Prisms designed with two 45° and one 90° angles UV Grade Fused Silica is synthetic amorphous silicon the dioxide of extremely high purity, excellent transmission throughout the UV, visible, and NIR spectral ranges. Fused...
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