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Knight Optical(UK) Ltd - - +44 (0)1622 859444

Rod and cone lenses

What are you looking for in Stock?

Knight Optical supply a range of rod and cone lenses for a variety of applications.

Cone lenses: are cylindrical rod lenses with one end worked into a conical surface. The circumference of the rod is typically ground whereas the conical element is polished. This makes the lens ideal for 360⁰ illumination, laser and imaging systems.

Plain rod lenses: Rod Lenses are a special variant of cylindrical lenses in that they are complete rods where the light passes through the sides of the rod and focuses a line.  Rod lenses have an outside face that is polished and the ends ground. The table below gives angular lengths of the line for a 1mm diameter laser beam. Typical uses for rod lenses would be to generate a line image from a circular laser beam. We supply rod lenses both mounted and unmounted. Our mounted rod lenses can be easily attached to laser heads and then easily rotated into the correct orientation. Supplied in borosilicate to meet visible and NIR applications. We are able to manufacture a range of rod lenses from UV grade fused silica for applications working in the ultra-violet down to 185nm. Rod lenses can also be polished on both ends and used as light pipe homogenising rods

Graded index lenses: Grin lenses are used for laser diode beam shaping and optical fibre coupling or for image focusing of laser light onto detectors. The interesting feature of a graded grin lens is that the material has a constantly changing refractive index through the lens. Graded index rod lenses can be polished on both ends and cemented to the fibre light source.

Knight Optical offers a range of stock and bespoke cone and rod lenses to suit a variety of applications. Alternatively we can edge stock components for a fast turnaround.

Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure all components meet our high quality standards.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality stock and custom rod and cone lenses along with our service can improve your instrumentation and supply chain experience.


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Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

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We are able to ship to most countries at good rates, please click here for more info.

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