BK7 Grin Rod Lens Collimating Focusing Spherical Cylindrical Lens

Overview:

A rod lens is a cylindrical lens which has the geometrical form of a cylinder with polished on the circumference and ground on both ends. Optical performance is similar to a cylinder lens. Rod lenses can be used, for example, for collimating a divergent beam in one dimension or for focusing light to a line.

There are also half-rod lenses, which are rod lenses cut into two equal pieces.

Rod lenses are available with different optical materials. N-BK7 and UV fused silica substrates are available for a variety of UV, visible and NIR applications.

Rod lenses can have diameters of a few millimeters, but there are also cylindrical microlenses with substantially smaller diameters. Small-diameter rod lenses are frequently used as fast-axis collimators for diode bars.

Star Optic offers custom sizes, variations in polishing/ ground surfaces and additional coatings are available upon request. We look forward to your inquiry.

General Specifications Of Rod Lens: 

Material	N-BK7
Surface Quality	60/40 scratch-Dig
Diameter Tolerance	+0/-0.05mm
Length Tolerance	±0.2mm
Clear Aperture	>90%
Polish	Cylinder surface polished, end surfaces ground
Coating	Unocated, Available

Standard Products of Rod Lens: