Lenses

Lense is the most basic optical component, It collects light from a source and refracts that light to form a usable image of the source. Lenses have many applications, ranging from the simple collection of the scanning of laser beams to precise imaging and image transfer.
Lenses Type
Plano-convex lenses are the best choice to focus parallel light to one point. Our plano-convex lenses are made of N-BK7, UV fused silica, N-SF11, Germanium, Silicon, etc.
Plano-concave lenses diverge parallel beams from a virtual focus and are often used to balance aberrations of other lenses in a system. MOK Optics offers Plano-concave lenses made of N-BK7, N-SF11, UV Fused Silica, CaF2, ZnSe, and more.
Biconvex lense, also known as double convex lense, is a lens that is thicker in the middle, thinner at the edges, and curved outward on both sides. Our biconvex lenses are made of N-BK7, UV fused silica, N-SF11, germanium, silicon, etc.
A biconcave lense, also known as a double concave lens, is a lens with two inwardly curved surfaces that diverge parallel light rays passing through it. Biconcave lenses are important elements in optics for diverging light rays and have specific applications in optical systems where diverging lenses are required. Our biconcave lenses are made of N-BK7, UV fused silica, N-SF11, Germanium, Silicon, etc.
A meniscus lense is a lens with one convex and one concave surface, similar to the shape of an eyeglass lens, that provides both converging and diverging optical properties depending on its curvature and orientation.
An achromatic lense, also called a doublet, is a lens designed to reduce chromatic aberration. It is a lens composed of two cemented elements made of different materials. Chromatic aberration is a phenomenon in optics where different colors of light focus at different distances, causing images to appear colored fringed and blurred. Achromatic lenses provide excellent correction of spherical aberration in monochrome applications.
Cylindrical lenses are used to correct astigmatism. A crossed cylindrical lens is a combination of two cylindrical lenses of equal but opposite power, used in subjective optometry to diagnose astigmatism.
Rod lenses are lenses with a cylindrical geometry. They can be used as cylindrical lenses for beam collimation, focusing and imaging.
Powell lens, which we can also call a laser generating lens, can create a uniform straight laser line by spreading a collimated beam in a one-dimensional fan shape. They are use in alignment, machine vision systems, construction, process control and lower power lasers.
Key specifications of powell lense:
Diameter: 6-40mm
Fan angle: 3°-120° ( 3°,5°,10°,15°,30°,45°,60°,75°,90°,100°,120° )
Laser beam diameter: 0.5mm – 18mm
Working wavelength: 405nm – 950nm
Line homogeneity: 80% -90%
Aspheric lenses are available in molded, CNC polished, with or without anti-reflective (AR) coatings. Aspheric lenses are often used to collimate light from optical fibers or laser diodes. The surface of an aspheric lens is designed to eliminate spherical aberration.
Material MOK Optics process:
– Optical glass – CDGM, SCHOTT, OHARA, HOYA
– UV grade fused silica – JGS1, Corning 7980 etc.
– IR grade fused silica – JGS3, Corning 7979 etc.
– IR crystals – Germanium, Sapphire, MgF2, CaF2, ZnSe, ZnS etc.
MOK Optics Capability:
Diameter Range | 3mm-250mm |
Diameter tolerance | ±0.02mm |
Tc tolerance | ±0.05mm |
Clear aperture | >90% |
Surface quality | Up to 10-5 |
Flatness | Up to λ/8@632.8nm |
Centration | Up to 30 seconds |
Coating | AR coating, HR coating, according to customer design |