Sep 2010LightPath Technologies Inc.Request Info
ORLANDO, Fla., Sept. 8, 2010 — LightPath Technologies Inc. has released a family of four aspheric lenses designed for blue laser diodes operating at 405 or 488 nm. The compact lenses are designed as the primary optics for collimating blue lasers in a variety of applications including biomedical instrumentation such as flow cytometers, microscopes and fluorescence spectroscopy equipment, and high-volume data storage applications.
The diffraction-limited single-lens-design molded glass aspheric lenses are specified for the beam divergences, peak wavelength and window material of commercial blue diode lasers, enabling blue laser applications to achieve good beam quality and performance.
The L-LAL12 and D-LaK6 glasses have been selected for their good UV and blue transmission properties and their ability to be molded using proprietary existing technology. The glasses are fully RoHS compliant, in accordance with the new European restrictions on hazardous substances. The lenses are available as mounted lenses in the company’s MT lens holders.
Numerical apertures for the four models are 0.66, 0.62, 0.61 and 0.60. Focal lengths are 2.54, 1.42, 4.00 and 4.02 mm, and outer diameters are 4.00, 2.75 and 6.325. Clear apertures are 3.3, 1.7, and 4.8 mm, and working distances are 1.55, 0.86, 2.37 and 2.41 mm.
All are available with proprietary standard MLBB-A antireflection coating for 400 to 600 nm.