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Lens



Lens can converge or diverge the transmission beam and form image of the object, which is widely used in various applications. Innowit can provide all kinds of spherical and cylindrical lenses, usually we can offer.
Spherical: plano-convex, plano-concave, double-convex, double-concave, meniscus, dome lens, rod lens, ball lens, half ball
Cylindrical: plano-convex, plano-concave
Mixture: one side spherical, the other side cylindrical! We can offer!
Assembly: doublet, triplet, customer designed special lens kit
Usually lenses are not only used in visible band, but also in IR band and UV band, that means special material should be used. Now, Innowit can offer lenses made of various materials such as CaF2, MgF2, Sapphire, Silicon, Germanium, ZnSe and etc. Innowit can also provide various coatings for lenses upon your request.
Spherical Lens
 
Specifications
 
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Radius Tolerance ±0.5%
Surface Quality 60/40 scratch and dig
Power(fringe@633nm) 3
Irregularity(fringe@633nm) 0.5
Centration <3 arc minutes
Focal Length Tolerance ±2%
Clear Aperture >90%
Chamfer Protective <0.5mmx45deg
 
 
Cylindrical Lens
 
Specifications
 
Material BK7, Fused Silica
Design Wavelength 632.8nm
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Surface Quality 60/40 scratch and dig
Power(fringe@633nm) 3
Irregularity(fringe@633nm) 0.5
Centration <3 arc minutes
Focal Length Tolerance ±2%
Clear Aperture >90%
Chamfer Protective <0.5mmx45deg
 
 
 
Achromatic Lens
 
Specifications
 
Material Optical Glasses
Design Wavelength 480, 546.1, 643.8nm
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Surface Quality 60/40 scratch and dig
Power(fringe@633nm) 3
Irregularity(fringe@633nm) 0.5
Centration <3 arc minutes
Focal Length Tolerance ±2%
Clear Aperture >90%
Chamfer Protective <0.5mmx45deg
Coating Single layer MgF2 coating @550nm
 

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