Product Categories
(Total 12 Products for Optical Lens 20 Mm)
The line connecting the centers of curvature on both sides is called the principal axis, and the central point O is called the optical center. Light passing through the optical center does not refract no matter where it comes from. The beam parallel to the main axis refracts on the concave lens and diverges to the...
Protected alumimum coating mirrors
45° Rod Mirrors are designed for use in different laser and imaging systems. Bena offers the 45° Rod Mirrors with coated and uncoated versions to bend image paths or redirect laser light at 90°. Technical Specifications for Customized Rod Mirrors Customization Build-to-print
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...
Amici Prisms also called right angle roof prisms, It is a right angle prism that's hypotenuse has been replaced by a 90-degree roof, Right angle Roof Prism can be used when a right angle deflection of an image or laser beam is required. Ideal for use in spotting scopes, and any optical instrument where it is desirable...
Optical domes are designed to act as a part of a protective case in applications such as underwater imaging, and pyrgeometers. Bena offers professional optical domes with different sizes in the range of 15mm ~280mm, with different materials including fused silica, silicon, SiO2, sapphire and optical glass such as...
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 lens are equal. It is generally used for beam expansion and projection. The principle of geometric drawing of biconcave lens...
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...
Precision wedge prism By selecting the appropriate wedge, it is easy to create beam deviations without affecting other beam parameters. Precision wedge prism O steering beam in optical system O can be used in pairs for continuous angle adjustment By selecting the appropriate wedge, it is easy to create beam deviations...
The reflection inside the prism is not caused by total reflection, because the angle of the incident light at the time of reflection is less than the critical angle, that is, the minimum angle of total reflection, so both reflecting surfaces should be plated as reflecting mirrors; The incident and outgoing surfaces...
The ridge prism can rotate and reverse the image and deflect light with a 90 ° bend. It is suitable for telescopes and any optical instrument that needs to flip the image from the objective lens, open the right side and bend at 90 ° to maintain the correct visual direction. Amisi roof prism is named after the inventor...
The reflection inside the prism is not caused by total reflection, because the angle of the incident light at the time of reflection is less than the critical angle, that is, the minimum angle of total reflection, so both reflecting surfaces should be plated as reflecting mirrors; The incident and outgoing surfaces...
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