Fresnel lens can capture more oblique light from a light source, thus allowing the light from a lighthouse equipped with one to be visible over greater distances. Fresnel lenses were later produced, b

LED prisms:The following are parameters:1.material: BK7,Fused Silica and other optical glass2. Wavelength:632.83. Focal length tolerance:±1%4. Diameter tolerance:+0.0/-0.1mm5.Centre thickness t

Meniscus lenses are convex-concave lenses. They have one outward curved face and one inward-curved face. If the outward curve is sharper than the inward curve, the lens has a positive focal length and

Off-axis with angle cylindrical lenses:We will also do according to the specifications such as size, structure, material, surface treatment and so on that the customers required. We supply them with g

We offer narrowband and broadband dielectric high reflecting coatings as well as a range of metal coatings. Broadband HR Coatings are offered for a selection of bandwidths. They provide a very high de

Parabolic cylindrical lenses:Material: Optical GlassDiameter Tolerance:+0.0/-0.05mmThickness Tolerance: ±0.1mmSurface Quality: 20-10Centration: 90%We will do according to the specifications suc

Penta Prismsis a five-sided prism. It reflects light rays through a 90° angle by two reflections and does invert or revert the image. The reflecting surfaces are aluminized. Slight movement of the

Plano-concave cylindrical lenses provide uni-axial negative imaging for anamorphic beam expansion and a wide range of applications.Material: BK7,Fused Silicaand other optical materialFocal Length Tole

Plano-Concave Lenseshave negative focal lengths. These lenses diverge collimated incident light. They form virtual images which are seen through the lens. They are often used to expand light or to inc