ILLUCO

Lens

A lens focuses or scatters light by refraction, and unlike a prism with the principle of refraction without focusing, the lens focuses light to form an image.

Expert Lens Solutions

Generally, lenses are made of glass or plastic, but there are also liquid lenses using the principle of human eye focusing mechanism. Glass lenses are manufactured to the desired shape through grounding and polishing, while plastic lenses are made by molding.

SPECIFICATION

Spherical Lens

A spherical lens has a spherical curvature on the refracting surface. The spherical lens is firstly divided into convex and concave lenses, and again divided into plano, double and meniscus from the first division.
Aspherical Lens

This lens is made of curved surface other than spherical surface. It is designed to reduce the number of lenses by minimizing spherical aberration and to bring the focus to one, resulting in a clean image with minimal distortion.
Cylindrical Lens

Cylindrical lens focuses or magnifies light only within one dimensional single axis of the light source. These cylindrical lenses are used to focus light on thin lines in the field of optical metrology, laser scanning, spectroscopy, laser diodes, aco-optic and optical processor applications. N-BK7 glass, UV fused silica or CaF2 are used as the material for the cylindrical lenses.
Achromatic Lens

Achromatic lens has an excellent off-axis performance and designed to have a constant focal length regardless of aperture and operating wavelength. It is manufactured in doublet or triplet and suitable for applications requiring better color correction in the visible wavelength range. These lenses are often used in applications requiring more analytical observation, such as microscopes and medical devices.

Technical Specification
Outer Diameter	2.0mm ~ 300mm
Cuvature	1.5 mm <
Surface Accuracy	1/2λ ~ 1/10λ
Diameter Tolerance	2mm ~ 150mm 0 ~ ±0.01
Thickness Tolerance	±0.005
Surface Quality	40-20 ~ 0-0
Coating	Customized
Processing Meterial	Sapphire, ZnSe, CCaF2, MgF2, Quartz, Ge, FPL….