When using the L58 Style Laser Dot Generator, choose the correct Line Generator Optic to create the appropriate line length for your need. A cylindrical lens is a round bar or cross section of glass through which the collimated laser light passes and then spreads into a fan beam to form a line.

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When using the L58 Style Laser Dot Generator, choose the correct Line Generator Optic to create the appropriate line length for your need from the following list:

Model # Fan Angle Measured at 18″ from the end of the laser Line Gen. Assembly
CL150 1º   Divergence Produces a 5/16 long line 150 mm Radius
CL075 2º   Divergence Produces a 5/8″ long line 75 mm Radius
CL025 3º  Divergence Produces a 1″ long line 25 mm Radius
CL015 10º Divergence Produces a 3″ long line 15 mm Radius
CL007 20º Divergence Produces a 6″ long line 7 mm Radius
CL002 70º Divergence Produces a 25″ long line 2 mm Radius

 

Also available:

Model # Description Used With These Lasers
CL2mm 70º Divergent Rod Lens 2mm Diameter GL56, GL58, GL202 and GL600 – green lasers
CL360 300º Divergent Line Generator Lens L56, L58, L202 and L600 – red lasers

*See AP185A Beam Spreader™ for even intensity line generator lens assemblies

A cylindrical lens is a round bar or cross section of glass through which the collimated laser light passes and then spreads into a fan beam to form a line. The line length is determined by two factors:

1. The radius (curve) of the glass

2. The laser beam’s cross sectional size.

Example: To lengthen a laser line, shorten the radius of the cylindrical lens (grind the glass so that the curve is more sharp). This will make the line spread (diverge) faster. To shorten a laser line, decrease the size (cross section) of the laser beam. The smaller the laser beam, the less the beam will interact (hit) the more curved part (the outer edges) of the cylindrical lens. In other words, a small laser beam goes through the middle of the lens and isn’t changed (refracted) much. The reverse is true for large laser beams and longer radius (less curved) cylindrical lens.

The cylindrical lens types used with the L58 Laser Dot Generator decrease their radius proportionally as the line lengthens. The laser beam size is not changed. This is a simple but effective design approach for industrial customers.

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