
Aspheric lenses are known for providing simple, single-element solutions for managing laser light. LightPath® has perfected a glass molding technology that produces aspheric lenses with consistent quality and at practical prices for system designers. Aspherics, which can be made in a large variety of Numerical Apertures (NA), can eliminate spherical aberrations and improve focusing and collimating accuracy. A low NA is ideal for maintaining beam shape, as in barcode scanning, where a nearly circular beam is critical. High NA lenses gather all available energy when long beam paths are required, such as in sighting systems. Molded aspheric lenses are used in a wide variety of photonic products including bar code scanners, laser diode-to-fiber couplings, optical data storage, and medical lasers.
Note: May be available in limited quantities, or require a minimum purchase quantity. Contact us for more information
Index Change by Wavelength | |
Wavelength | Index of Refraction |
486.1nm | 1.61341 |
546.1nm | 1.60786 |
587.6nm | 1.60500 |
632.8nm | 1.60251 |
656.3nm | 1.60141 |
670.0nm | 1.60095 |
706.5nm | 1.59940 |
780.0nm | 1.59708 |
852.1nm | 1.59528 |
1014.0nm | 1.59227 |
1300.0nm | 1.58850 |
1550.0nm | 1.58572 |
Numerical Aperture NA | Effective Focal Length EFL | Window Properties (Thickness t, Index) |
0.15 | 5.000 | N/A |
0.15 | 18.400 | 0.250, 1.517 |
0.16 | 15.290 | 0.250, 1.517 |
0.18 | 6.100 | N/A |
0.18 | 13.860 | N/A |
0.25 | 11.000 | 0.250, 1.517 |
0.30 | 1.160 | N/A |
0.30 | 6.160 | 0.275, 1.517 |
0.30 | 7.50 | 0.275, 1.517 |
0.40 | 6.240 | 0.275, 1.517 |
0.42 | 4.500 | N/A |
0.43 | 1.140 | 0.300, 1.517 |
0.47 | 4.470 | 1.20, 1.573 |
0.50 | 2.000 | 0.250, 1.517 |
0.50 | 8.000 | 0.250, 1.517 |
0.53 | 2.950 | 0.250, 1.517 |
0.55 | 0.382 | N/A |
0.55 | 1.450 | N/A |
0.55 | 2.720 | 1.20, 1.573 (Polycarbonate) |
0.55 | 3.890 | 1.20, 1.573 |
0.55 | 4.510 | 0.250, 1.517 |
0.59 | 0.450 | N/A |
0.60 | 4.000 | 1.20, 1.518 |
0.62 | 4.030 | 1.20, 1.518 |
0.68 | 2.750 | N/A |
0.68 | 3.100 | N/A |